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• #1 Clinical features and diagnosis of pulmonary hypertension of unclear etiology in adults – UpToDate

  https://www.uptodate.com/contents/clinical-features-and-diagnosis-of-pulmonary-hypertension-in-adults

  Clinical features and diagnosis of pulmonary hypertension of unclear etiology in adults […] Patients suspected of having pulmonary hypertension (PH) undergo extensive diagnostic testing. The purpose of diagnostic testing is to confirm that PH exists and identify the underlying cause so that appropriate treatment can be administered. […] The clinical features, diagnostic evaluation, and diagnostic criteria for PH are reviewed here. Epidemiology, pathogenesis, treatment, and prognosis are discussed separately. […] When evaluating patients with suspected PH, good working knowledge of the etiologies and classification is important. Patients with PH are classified into five groups based upon etiology and mechanism. Patients in group 1 are considered to have pulmonary arterial (PA) hypertension (PAH), which has several causes (eg, inheritable causes, drugs, connective tissue disease), whereas patients in group 2 (due to left-sided heart disease), group 3 (due to chronic lung disorders and hypoxemia), group 4 (due to PA obstructions), and group 5 (due to unidentified mechanisms) are considered to have PH. When all five groups are discussed collectively, the term PH is used.

• #1 Evaluation and Diagnosis of Pulmonary Arterial Hypertension | USC Journal

  https://www.uscjournal.com/articles/evaluation-and-diagnosis-pulmonary-arterial-hypertension-0?language_content_entity=en

  Idiopathic pulmonary arterial hypertension (formerly referred to as primary pulmonary hypertension) is an uncommon yet progressively fatal disease defined by the presence of mean pulmonary artery pressure greater than 25mmHg at rest or greater than 30mmHg with exercise as tested by right heart catheterization in the absence of other etiologies for pulmonary hypertension. […] The diagnosis takes an average of 2.0 to 2.9 years to make, because its initial symptoms are minimized by patients and are characteristic of other, more common disorders. […] An expert panel from the American College of Chest Physicians (ACCP) has developed an algorithm from their 2004 guidelines to help clinicians navigate through the myriad diagnostic tests to make the correct diagnosis. […] Delays in diagnosis may have clinical implications as data suggest that instituting therapy in the setting of less advanced disease results in greater survival benefits.

• #1 Diagnosis of pulmonary hypertension

  https://pmc.ncbi.nlm.nih.gov/articles/PMC6351333/

  A revised diagnostic algorithm provides guidelines for the diagnosis of patients with suspected pulmonary hypertension, both prior to and following referral to expert centres, and includes recommendations for expedited referral of high-risk or complicated patients and patients with confounding comorbidities. […] New recommendations for screening high-risk groups are given, and current diagnostic tools and emerging diagnostic technologies are reviewed. […] The modified diagnostic algorithm divides the diagnostic approach into 1) that undertaken outside the PH expert centre, including recommendations for high-risk/accelerated disease requiring expedited triage to the expert centre, and 2) that focusing on the diagnosis of PH once referred to a PH expert centre. […] Patients with congenital heart disease (CHD), CTD, HIV and portopulmonary hypertension (POPH) are at increased risk for PH.

• #1 Pulmonary Hypertension: Diagnosis and Treatment | AAFP

  https://www.aafp.org/pubs/afp/issues/2016/0915/p463.html

  Pulmonary hypertension is a common, complex group of disorders that result from different pathophysiologic mechanisms but are all defined by a mean pulmonary arterial pressure of 25 mm Hg or greater. […] Diagnosis can be challenging and requires a stepwise evaluation. Echocardiography is recommended as the initial step in the evaluation of patients with suspected pulmonary hypertension. A definitive diagnosis cannot be made on echocardiographic abnormalities alone, and some patients require invasive evaluation by right heart catheterization. […] There is limited evidence to guide screening for pulmonary hypertension in asymptomatic individuals, even in high-risk groups, which leads to significant delays in diagnosis. […] A stepwise approach can minimize the risks and costs of unnecessary testing. Physicians should initially consider the history, clinical findings, and targeted noninvasive testing, particularly echocardiography. Patients presenting with signs of advanced pulmonary hypertension (right heart failure or syncope) should be promptly evaluated with echocardiography. Some patients require right heart catheterization, which is important for classification and subsequent treatment options.

• #1 Pulmonary hypertension – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/pulmonary-hypertension/diagnosis-treatment/drc-20350702

  Pulmonary hypertension is hard to diagnose early. It’s not often found during a routine physical exam. Even when pulmonary hypertension is more advanced, its symptoms are similar to those of other heart and lung conditions. […] To diagnose pulmonary hypertension, a healthcare professional examines you and asks about your symptoms. You are usually asked questions about your medical and family history. […] Tests to diagnose pulmonary hypertension may include: […] Blood tests can help find the cause of pulmonary hypertension. The test also may help find complications of the disease. […] A chest X-ray is a picture of the heart, lungs and chest. It may be used to check for other lung conditions that can cause pulmonary hypertension. […] This simple test records the electrical activity of the heart. It shows how the heart is beating.

• #1 A Practical Clinical Approach to the Diagnosis and Treatment of Patients with Pulmonary Hypertension | ECR Journal

  https://www.ecrjournal.com/articles/practical-clinical-approach-diagnosis-and-treatment-patients-pulmonary-hypertension?language_content_entity=en

  The diagnosis of PH is frequently missed. When it is associated with other comorbidities e.g. lung or heart diseases failure of the primary disease to respond to conventional therapies should lead one to suspect a possible association with PH in addition which warrants diagnosis, classification and potential therapeutic intervention. […] The clinical signs associated with PH include: 1. A prominent a wave reflecting high right ventricular filling pressures in the jugular venous pressure. 2. An accentuated V wave suggesting tricuspid regurgitation in the jugular venous pressure. 3. A loud pulmonary component of the second heart sound as a consequence of forceful valve closure from raised PAP. 4. A left parasternal lift as a consequence of right ventricular hypertrophy (a right ventricular heave). 5. A right ventricular gallop rhythm (third and or forth heart sound). 6. Signs of right ventricular failure.

• #1 Pulmonary Hypertension: Diagnosis and Treatment | AAFP

  https://www.aafp.org/pubs/afp/issues/2016/0915/p463.html

  Echocardiography is the initial noninvasive diagnostic test, according to national guidelines. […] An estimated systolic pulmonary arterial pressure of 35 to 40 mm Hg or greater on echocardiography is suggestive of pulmonary hypertension. […] A meta-analysis calculated the accuracy of echocardiography vs. right heart catheterization for diagnosing pulmonary hypertension and found a sensitivity of 83% (95% confidence interval [CI], 73 to 90), a specificity of 72% (95% CI, 53 to 85), and an odds ratio of 13 (95% CI, 5 to 31). […] Additional testing, including right heart catheterization, depends on the differential and the treatment response. […] The diagnostic classification of pulmonary hypertension determines the treatment options. Evidence supporting targeted treatment is available only for pulmonary arterial hypertension or chronic thromboembolic pulmonary hypertension. […] For the other classes, there are no data on treatment effectiveness, and for some therapies, there is evidence of harm.

• #1 Diagnosis of pulmonary hypertension

  https://pmc.ncbi.nlm.nih.gov/articles/PMC6351333/

  As little or no progress has been made in earlier diagnosis, this Task Force recommends more aggressive assessment and screening of some of these high-risk populations. […] The current diagnosis Task Force undertook a systematic review of the published literature for screening tools available for CTD-PAH. […] The utility of the ECG as a screening tool in complicated patients or those early in the course of their disease is uncertain. […] A normal ECG does not exclude PH. […] Echocardiographic screening is recommended in all patients with portal hypertension. If a tricuspid regurgitant jet of 3.4ms1 or right atrial or right ventricular enlargement or dysfunction is found, then further evaluation with RHC and referral to PH expert centre is recommended.

• #1 Pulmonary Hypertension | Conditions | UCSF Health

  https://www.ucsfhealth.org/conditions/pulmonary-hypertension

  If your doctor determines that you have pulmonary hypertension, the next step will be to learn what’s causing it. Tests to reveal the cause include: Computed tomography (CT) scan, Pulmonary function tests, Overnight sleep study, and Lab tests. […] When doctors can’t find an underlying cause, the diagnosis is primary pulmonary hypertension.

• #1 Pulmonary hypertension | Radiology Reference Article | Radiopaedia.org

  https://radiopaedia.org/articles/pulmonary-hypertension-1?lang=us

  Ultimately, diagnosis cannot be made with echocardiography, and a right heart catheterization is needed when it would inform treatment. […] High-resolution CT (HRCT) chest, of course, is indispensable in assessing the lung parenchyma and identifying possible causative processes (e.g. interstitial lung disease, COPD, etc.). […] Traditionally pulmonary angiography has been the gold standard to identify small peripheral occlusions and to better quantify the degree of stenosis. Increasingly this has been replaced by better quality CTPA and cardiac CT.

• #1 Pulmonary Arterial Hypertension: Symptoms, Causes, and Treatments

  https://www.webmd.com/lung/pulmonary-arterial-hypertension

  Getting a Diagnosis: If you have shortness of breath and see your doctor, they will ask you about your medical history. They may also ask you: Do you smoke? Does anyone in your family have heart or lung disease? When did your symptoms start? What makes your symptoms better or worse? Do your symptoms ever go away? […] Your doctor may order tests, including: Echocardiogram: This ultrasound picture of the beating heart can check blood pressure in the pulmonary arteries. […] CT scan: This can show enlarged pulmonary arteries. A CT scan can also spot other problems in the lungs that could cause shortness of breath. […] Ventilation-perfusion scan (V/Q scan): This test can help find blood clots that can cause high blood pressure in the lungs. […] Electrocardiogram (EKG or ECG): An EKG traces the heart’s activity and can show whether the right side of the heart is under strain. That’s a warning sign of pulmonary hypertension.

• #1 Pulmonary Hypertension Imaging: Practice Essentials, Radiography, Computed Tomography

  https://emedicine.medscape.com/article/361242-overview

  The purposes of imaging studies in individuals with pulmonary hypertension are as follows: Detecting pulmonary hypertension (echocardiography, cardiac catheterization), Differentiating the cause (echocardiography, V/Q scanning, CTPA, cardiac catheterization, pulmonary angiography, MRI), Determining the severity (echocardiography, cardiac catheterization), Evaluating the status of the right ventricle (echocardiography, cardiac catheterization, MRI). […] Right heart catheterization may be required. Pulmonary angiography is the most accurate modality for evaluating the anatomy and pathophysiology of pulmonary hypertension. This examination is the criterion standard for the diagnosis of pulmonary hypertension.

• #1 Pulmonary Arterial Hypertension Symptoms and Diagnosis | American Lung Association

  https://www.lung.org/lung-health-diseases/lung-disease-lookup/pulmonary-arterial-hypertension/symptoms-diagnosis

  How Pulmonary Arterial Hypertension Is Diagnosed […] Because symptoms are similar to other common lung diseases, it can often be hard to diagnose PAH. Diagnosis is a process of eliminating other diseases. With the help of lung and heart specialists (pulmonologist and cardiologist) you will need to complete several tests, such as: […] Blood tests: Including HIV, thyroid tests, autoimmune disease panels (test for systemic lupus erythematosus, scleroderma, and rheumatoid arthritis), liver tests and blood chemistry tests. […] Electrocardiogram: Shows the electrical activity of the heart and may help detect abnormalities. Doctors may also be able to detect signs of strain on the right side of the heart. […] Lung function tests (breathing tests): Checks for diseases like asthma or COPD.

• #1 Idiopathic pulmonary arterial hypertension – Symptoms, diagnosis and treatment | BMJ Best Practice US

  https://bestpractice.bmj.com/topics/en-us/292

  Idiopathic pulmonary arterial hypertension (IPAH) is a rare, frequently fatal disease. […] Diagnosis of exclusion. Transthoracic Doppler echocardiography and right heart catheterization can diagnose pulmonary hypertension. Laboratory tests and imaging studies can rule out known causes of pulmonary hypertension. […] Key diagnostic factors include age 20-50 years, female sex, dyspnea, accentuated pulmonic component (P2) to the second heart sound, tricuspid regurgitation murmur, and family history. […] 1st tests to order include chest radiography, ECG, transthoracic Doppler echocardiography, right heart catheterization, antinuclear antibodies (ANA), pulmonary function tests, arterial blood gas (ABG), nocturnal oximetry, ventilation-perfusion (V/Q) scintigraphy, 6-minute walk test, B-type natriuretic peptide (BNP) or N-terminal proBNP (NT-proBNP), CBC, LFTs, thyroid function tests, and HIV serology. […] Tests to consider include high-resolution chest CT scan CT pulmonary angiography, cardiac MRI, and vasodilator testing with inhaled nitric oxide, inhaled iloprost, or intravenous epoprostenol.

• #1 Pulmonary Arterial Hypertension: Practice Essentials, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/303098-overview

  Pulmonary hypertension, defined as a mean pulmonary arterial pressure greater than 20 mm Hg at rest or greater than 30 mm Hg during exercise, is often characterized by a progressive and sustained increase in pulmonary vascular resistance that eventually may lead to right ventricular failure. It can be a life-threatening condition if untreated. […] The World Health Organization (WHO) has divided pulmonary hypertension into five groups on the basis of similarities in pathophysiology, clinical presentation, and therapeutic options. […] This review focuses on group 1 pulmonary hypertension, which is also referred to as pulmonary arterial hypertension (PAH). […] In patients with symptoms of suspected obstructive sleep apnea, polysomnography should be performed. Polysomnography may offer both diagnostic and therapeutic options for sleep-disordered breathing.

• #1 Pulmonary Arterial Hypertension Symptoms and Diagnosis | American Lung Association

  https://www.lung.org/lung-health-diseases/lung-disease-lookup/pulmonary-arterial-hypertension/symptoms-diagnosis

  6-Minute Walk Test: Objectively measures how far you can walk and to see if your oxygen levels drop when you are physically active. […] Echocardiogram: Ultrasound of the heart to check the size and condition of the chambers of the heart. It can also be used to estimate the blood pressure in the pulmonary arteries. […] Right Heart Catheterization: This test is invasive, so it is not usually performed unless other tests cannot produce a firm diagnosis. It involves inserting a catheter (small tube) into a large vein in either the neck, arm, or groin, and threading it through the right side of the heart and into the pulmonary artery. This allows measurement of the blood pressure in the lungs. […] Diagnosing Heritable PAH (HPAH) […] Diagnosis includes exclusion of other causes, confirmation of a mutation in one of the genes noted to be associated with HPAH, and confirmation of PAH in one or more family members.

• #1 How is pulmonary hypertension diagnosed? | Asthma + Lung UK

  https://www.asthmaandlung.org.uk/conditions/pulmonary-hypertension/diagnosis

  Other tests you might have are: […] cardiopulmonary exercise test (CPET or CPEX). This test sees how your heart, lungs and muscles react together when you exercise. Its usually performed on a bike, where youre monitored with wires and breathing with a mouthpiece. The test can measure the level of risk of PAH or CTEPH, and can help make treatment decisions. This test can also be useful in helping assess the causes of breathlessness.

• #1 Diagnosis – Pulmonary Hypertension Association

  https://phassociation.org/patients/diagnosis/

  Diagnosing Pulmonary Hypertension […] Pulmonary hypertension (PH) can be difficult to diagnose in a routine medical exam because the most common symptoms of PH, such as breathlessness, fatigue and dizziness, are also associated with many other conditions. If your doctor suspects that you have PH, he or she will want to review your medical and family history, perform a physical exam and perform one or more diagnostic tests. […] To determine if you have PH and what type, your medical team will schedule specialized tests. If your medical team suspects PH as a result of one or more of the following tests, they will go on to schedule a right-heart catheterization, which is required to confirm diagnosis. […] If the results of initial tests point to PH, your doctor will schedule a right-heart catheterization (commonly referred to as a “right heart cath”). Right-heart catheterization is one of the most accurate and useful tests to get a definitive diagnosis for pulmonary hypertension. This is the only test that directly measures the pressure inside the pulmonary arteries, and it should be done in all patients at least once to confirm a patient’s diagnosis of PH. During the test, doctors insert a catheter (a thin rubber tube) through a large vein in the patient’s groin or neck. They then pass the catheter up into the patient’s heart to measure the blood pressure in the right side of the heart and lungs.

• #1 Evaluation, Diagnosis, and Classification of Pulmonary Hypertension | Methodist DeBakey Cardiovascular J

  https://journal.houstonmethodist.org/articles/10.14797/OCDF4453

  All patients suspected to have PH must undergo RHC, which is associated with relatively low morbidity and mortality (1.1% and 0.055%, respectively) when performed at experienced centers. […] Right heart catheterization is essential for diagnosis of PH. […] The 6th WSPH changed the definition of PH to mean pulmonary artery pressure (mPAP) 20 mm Hg. […] Genetic counseling is an essential component of managing patients with PAH. […] Screening for PH is recommended in these groups to allow timely diagnosis and treatment. […] Early referral to a specialized PH center is strongly recommended.

• #1 Guidelines on the Diagnosis and Treatment of Pulmonary Hypertension: Summary of Recommendations | Archivos de Bronconeumología

  https://www.archbronconeumol.org/en-guidelines-on-diagnosis-treatment-pulmonary-articulo-S157921291830051X

  In patients with idiopathic, hereditary, or drug-related PAH, a vasodilator test with inhaled nitric oxide or iv epoprostenol will be performed during the RHC diagnostic procedure. The test is positive if mPAP drops 10mmHg to reach a value 40mmHg, with no reduction in cardiac output. […] The diagnosis of pulmonary veno-occlusive disease (PVOD) or pulmonary capillary hemangiomatosis (PCH) is based on clinical data, very low carbon dioxide diffusing capacity, severe hypoxemia, and consistent findings on high-resolution computed tomography (HRCT). […] A set of variables associated with survival are used for evaluating prognosis. For monitoring, clinical parameters and more easily performed tests (functional class [FC], 6-minute walk test, ECG, clinical laboratory tests) should be evaluated every 36 months, while the more complex procedures should be performed every 612 months, or in case of clinical deterioration.

• #1 Evaluation and Diagnosis of Pulmonary Arterial Hypertension | USC Journal

  https://www.uscjournal.com/articles/evaluation-and-diagnosis-pulmonary-arterial-hypertension-0?language_content_entity=en

  The goals of right heart catheterization, in addition to making the diagnosis, are to measure right atrial and ventricular pressures, pulmonary vascular resistance, and cardiac output/index (end organ function), to evaluate for the presence of left-to-right shunts, and to test the patient’s response to acute vasodilators such as adenosine, prostacyclin, or nitric oxide. […] The algorithm developed by the ACCP should be used as a guide for diagnostic strategy for the initial evaluation.

• #1 Pulmonary hypertension – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/pulmonary-hypertension/diagnosis-treatment/drc-20350702

  Sound waves create pictures of the beating heart. An echocardiogram shows how blood flows through the heart and heart valves. This test may be done to help diagnose pulmonary hypertension or to learn how treatments are working. […] If an echocardiogram shows pulmonary hypertension, this test may be done to confirm the diagnosis. […] Other tests may be done to check the condition of the lungs and pulmonary arteries. […] Screening for gene changes that cause pulmonary hypertension may be recommended. If you have these gene changes, other family members may need to be screened too. […] Once a diagnosis of pulmonary hypertension is confirmed, the condition is classified according to how the symptoms affect you and your ability to do everyday tasks. […] Your healthcare team may use a risk calculator that looks at symptoms and test results to understand what type of treatment is needed. This is called pulmonary hypertension risk stratification.

• #1 Pulmonary hypertension diagnosis: Tests, criteria, what to expect

  https://www.medicalnewstoday.com/articles/pulmonary-hypertension-diagnosis

  An ECG measures the electrical signals of the heart. By itself, this test is not enough to diagnose pulmonary hypertension. […] A nuclear scan, or ventilation/perfusion scan, examines the way blood flows through the lungs in order to search for blood clots. […] An echocardiogram is a noninvasive, painless procedure. A doctor can use the test to make a preliminary diagnosis of pulmonary hypertension by measuring the pressure on the right side of the heart and looking at how well the heart is functioning in general. […] According to the Pulmonary Hypertension Association, right-heart catheterization is the gold standard of testing and the most useful and accurate test for diagnosing pulmonary hypertension. […] If a doctor or person wants to test for HPAH, genetic testing is available. It can tell if a person has a genetic mutation that could or has caused PAH to occur.

• #1 Pulmonary hypertension – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/pulmonary-hypertension/symptoms-causes/syc-20350697

  Pulmonary hypertension is sorted into five groups, depending on the cause. […] Eisenmenger syndrome can lead to pulmonary hypertension. […] Potential complications of pulmonary hypertension are: […] Pulmonary hypertension increases the risk of blood clots in the small arteries in the lungs. […] Pulmonary hypertension can cause changes in the heartbeat, which can be life-threatening. […] Pulmonary hypertension can lead to life-threatening bleeding in the lungs and coughing up blood.

• #1 Pulmonary Hypertension: Diagnosis and Management – Indian Journal of Cardiovascular Disease in Women

  https://ijcdw.org/pulmonary-hypertension-diagnosis-and-management/

  In PAH, comprehensive risk assessment is a complex, dynamic, and important part of individualized patient care. […] The European Society of Cardiology/European Respiratory Society (ESC/ERS) risk stratification table and the risk equations and scores from the Registry to Evaluate Early and Long-term PAH Disease Management (REVEAL) registry are two important risk stratification tools. […] A person-centered, dynamic approach is needed because of the progressive nature of the disease. […] An overview of PAH-specific therapy and crucial supportive measures are given in this section. […] The three important treatment pathways for PAH are endothelin, nitric oxide, and prostacyclin are targeted for the treatment. […] Sotatercept is a first-in-class fusion protein that modulates TGF- and BMPR2 signaling and is shown to have benefits in the recently completed Trial of sotatercept for treatment of pulmonary hypertension (STELLAR) trial.

• #1 Managing Pulmonary Arterial Hypertension: Diagnosis, Classification, and Treatment Strategies

  https://www.pharmacytimes.com/view/managing-pulmonary-arterial-hypertension-diagnosis-classification-and-treatment-strategies

  The group we’ll be talking about today is group 1, which is [PAH]. […] According to Smith, the PAH group includes patients who have idiopathic disease, heritable disease, and drug-induced disease. […] For patients who meet the necessary criteria, Smith explained that vasoreactivity testing is performed. […] What were looking for is the mPAP to drop by at least 10 mm Hg to a level that’s less than 40 [mm Hg]. […] According to Smith, one of the unique things about PAH management is that it uses a prognosis-based algorithm. […] Currently, the European prognosis-based algorithm is used across the United States and categorizes patients into 1 of 3 groups: low risk, intermediate risk, and high risk. […] There are also certain variables that are assessed at the time of diagnosis, such as the 6-minute walk distance, brain natriuretic peptide (BNP) levels, and World Health Organization (WHO) functional class.

• #1 Unmet Clinical Needs in the Diagnosis and Management of Pulmonary Arterial Hypertension

  https://www.ajmc.com/view/unmet-clinical-needs-diagnosis-management-pulmonary-arterial-hypertension

  The 2022 ESC/ERS guidelines provide detailed risk stratification charts and subsequent treatment recommendations for PAH. […] The time from symptom onset to diagnosis is often more than 2 years, highlighting the need for improved screening for PAH, particularly because therapies may be more effective when initiated early. […] Differential diagnosis among PH groups is important to correctly diagnose PAH. […] Echocardiography can be performed to screen for PAH in patients presenting with characteristic symptoms or to confirm a PAH diagnosis. […] Referring patients to specialized centers is essential to ensure that patients are provided with education, informed on behavioral modifications, and given access to social and psychological support. Regular risk assessment of patients diagnosed with PAH is recommended to achieve or maintain a low-risk status. […] After a patient is diagnosed with PAH, echocardiography and cardiac MRI should be performed at baseline and every 3 to 6 months after changes in therapy, both in stable patients and in cases of clinical worsening, to assess whether the disease is stable or progressing.

• #1 Evaluation and Diagnosis of Pulmonary Arterial Hypertension | USC Journal

  https://www.uscjournal.com/articles/evaluation-and-diagnosis-pulmonary-arterial-hypertension-0?language_content_entity=en

  Early recognition of symptoms, diagnosis, and close monitoring of affected patients through appropriate steps is critical to improving patient morbidity and mortality. […] Transthoracic Doppler echocardiography currently serves as the most widely used non-invasive tool to evaluate pulmonary hypertension; its sensitivity and specificity range from 0.79 to 1.0 and 0.6 to 0.98, respectively. […] Echocardiography receives an 'A’ recommendation from the ACCP guidelines for initial testing of pulmonary hypertension; furthermore, high-risk patients should be screened for pulmonary hypertension using echocardiography based on expert opinion. […] Right heart catheterization verifies the suspected diagnosis of pulmonary hypertension, presuming the pulmonary capillary wedge pressure is not elevated, and receives an 'A’ recommendation from the ACCP guidelines.

• #1 3 Tools to Help with Pulmonary Arterial Hypertension Diagnosis

  https://www.jnj.com/innovation/3-tools-to-help-diagnose-pulmonary-arterial-hypertension

  In many cases, it can take more than two years to diagnose this rare disease and that delay can be deadly. […] The difficulty in diagnosing comes from the fact that the symptoms the patients first describe are incredibly nonspecific, says Sean Studer, M.D., Vice President of Medical Affairs at the Janssen Pharmaceutical Companies of Johnson Johnson. […] In many cases, it takes as long as two years for a patient to receive an accurate PAH diagnosis. Though there’s no cure for the disease, diagnosing PAH as early as possible is critical, as it may help to improve survival odds. […] By harnessing artificial intelligence, apps and other digital innovations, healthcare professionals may be able to figure out sooner who’s most at risk for PAH and hopefully save more lives. […] According to Dr. Studer, it’s vital for these patients to get screened for PAH annually via an echocardiogram which uses sound waves to detect abnormalities of the heart but many do not complete this important screening test.

• #1 3 Tools to Help with Pulmonary Arterial Hypertension Diagnosis

  https://www.jnj.com/innovation/3-tools-to-help-diagnose-pulmonary-arterial-hypertension

  Research suggests the DETECT algorithm may reduce missed PAH diagnoses: It had a 4% rate of missed PAH diagnoses compared with 29% using other guidelines. […] Artificial intelligence (AI) may help clinicians identify the disease earlier and more quickly and accurately so that patients can access treatment and achieve better long-term outcomes. […] In the near term, these technologies offer a way to have a rapid impact on PAH diagnosis. […] The tool evaluates six variables, including vital signs, a six-minute walk test, the NT-proBNP test and renal insufficiency, and gives the patient a score between one and 14. Based on the score, physicians decide the best next steps. […] The goal is to help health centers incorporate REVEAL risk calculators into their electronic health records so that existing data is pulled in to make assessing risk easier. […] Ultimately, bringing new treatments to bear and one day curing this disease would be wonderful, says Dr. Studer. But in the near term, what’s exciting is that these technologies may offer a way to assist healthcare professionals in diagnosing PAH.

• #1 A Simple Blood Test to Speed Pulmonary Hypertension Diagnosis | The University of Arizona Health Sciences

  https://healthsciences.arizona.edu/news/stories/simple-blood-test-speed-pulmonary-hypertension-diagnosis

  Analyzing data from blood samples with a computer algorithm, Drs. Rafikov and Rafikova zeroed in on shifts in about a dozen metabolites that signal early diagnosis. […] They then created a machine-learning algorithm a set of instructions for the computer to scan for metabolites in the blood to detect the presence of pulmonary hypertension, eventually developing a metabolic profile to hone in on 11 specific metabolites out of tens of thousands in the body. […] After further refinements, Drs. Rafikov and Rafikova hope to provide their 11-metabolite panel to physicians to screen patients with mild pulmonary hypertension symptoms and allow earlier diagnosis.

• #1 Diagnosing Pulmonary Hypertension Through Non-invasive Methods < Yale School of Medicine

  https://medicine.yale.edu/news-article/diagnosing-pulmonary-hypertension-through-non-invasive-methods/

  The study revealed that two non-invasive variables in particular gas exchange-derived pulmonary vascular capacitance [measured during exercise tests] and delta end-tidal carbon dioxide [measures cardiac output] were the strongest in determining whether interstitial lung disease with pulmonary hypertension was present. Furthermore, using CART statistical analysis, the team found that the combination of gas exchange-derived pulmonary vascular capacitance, estimated right ventricular systolic pressure, and an elevated FVC to DLCO ratio can predict pulmonary hypertension in interstitial lung disease with high sensitivity and specificity. […] Fortunately for patients with a pulmonary hypertension diagnosis, medications are effective in reducing poor outcomes and improving breathing and exercise tolerance. Because earlier use of medication results in better outcomes, the team hopes its work can help lead to faster and more efficient diagnoses.

• #1 Evaluation, Diagnosis, and Classification of Pulmonary Hypertension | Methodist DeBakey Cardiovascular J

  https://journal.houstonmethodist.org/articles/10.14797/OCDF4453

  There is a well-documented time lag between symptom onset and diagnosis of PH. According to the Registry to Evaluate Early and Long-Term PAH Disease Management (REVEAL registry), roughly 21% of patients experienced a 2-year delay in receiving a diagnosis of PAH. […] The lack of improvement in this lag over the past decades triggered the 6th WSPH taskforce on the diagnosis of PH to modify the recommended diagnostic algorithm to facilitate a more efficient diagnostic process. […] All patients suspected to have PH undergo a thorough history taking and physical examination with an emphasis on findings that may point to the presence of PH or associated conditions. […] Patients suspected of having PH undergo a comprehensive workup to confirm the presence of PH and identify its etiology. […] One of the initial tests obtained from these patients is electrocardiography (EKG).

• #1 Pulmonary Arterial Hypertension: Practice Essentials, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/303098-overview

  Management of pulmonary arterial hypertension (PAH) is multifaceted and consists of supportive therapy as well as advanced vasodilatory therapy. Effective therapy should be instituted in the early stages, before irreversible changes in pulmonary vasculature occur. […] Patients with pulmonary arterial hypertension (PAH) should be seen at a center that specializes in pulmonary hypertension treatment. This is particularly important prior to the initiation of advanced vasodilatory therapies. […] Increased pulmonary vascular resistance is the main pathogenic mechanism in pulmonary arterial hypertension (PAH). This is typically due to vasoconstriction, remodeling, and thrombosis of the small pulmonary arteries and arterioles. […] The prognosis of patients with pulmonary arterial hypertension (PAH) is variable and depends on the etiology, severity, and treatment. […] US registry data suggest a 5-year survival rate of 57% without treatment (from the time of diagnostic right-sided heart catheterization). […] Risk score calculators for patients with newly diagnosed PAH are available and validated.

• #1 Pulmonary Hypertension: Symptoms, Treatment

  https://my.clevelandclinic.org/health/diseases/6530-pulmonary-hypertension-ph

  These tests measure the blood pressure in your pulmonary arteries: Right heart catheterization: This test is also called pulmonary artery catheterization. It measures the pressure inside your pulmonary arteries and checks how much blood your heart can pump per minute. […] Treatment for pulmonary arterial hypertension (PAH) includes: Calcium channel blockers. These medications can help lower the blood pressure in your pulmonary arteries and throughout your body. […] Your healthcare team will tailor treatment to your individual needs. […] Talk with your provider about your risk factors and what you can do to lower your risk. […] The outlook for people with pulmonary hypertension depends on: The cause of PH. How early its diagnosed. The severity of symptoms. Associated medical conditions.

• #1 A Practical Clinical Approach to the Diagnosis and Treatment of Patients with Pulmonary Hypertension | ECR Journal

  https://www.ecrjournal.com/articles/practical-clinical-approach-diagnosis-and-treatment-patients-pulmonary-hypertension?language_content_entity=en

  Echocardiography is a useful investigation in the initial diagnosis of PH and helps to risk stratify patients and monitor progress. […] The gold standard investigation for diagnosing PH is right heart catheterisation. […] Most right heart catheter procedures are performed quickly (less than 30 minutes), are well tolerated and have a low complication rate. […] It is hoped that further improvement of our understanding of the pathophysiological mechanisms involved in the development of PAH will be accompanied by the development of more effective treatments and that the role of combination therapy will be defined. However, PAH remains a progressive lethal disease that is frequently not diagnosed because initial symptoms are non-specific. Improved awareness is therefore necessary to ensure that patients with PAH receive earlier diagnosis and are referred to an appropriate specialist centre to have the condition characterised and to receive appropriate therapeutic intervention as soon as possible.

• #2 Pulmonary Hypertension Imaging: Practice Essentials, Radiography, Computed Tomography

  https://emedicine.medscape.com/article/361242-overview

  Pulmonary hypertension, defined as a mean pulmonary arterial pressure (mPAP) of 25 mm Hg or greater at rest measured during right heart catheterization; however, the upper limit of a normal mPAP is considered to be 20 mm Hg. It is often characterized by a progressive and sustained increase in pulmonary vascular resistance that eventually may lead to right ventricular failure and can be a life-threatening condition if left untreated. […] In an individual with suspected pulmonary hypertension, PPH is the diagnosis of exclusion. Hence, a designated algorithm should be used to exclude secondary causes of pulmonary hypertension. The following are proposed investigations: Autoantibody tests, HIV test, liver function tests, Electrocardiography, Chest radiography, Pulmonary function tests, Echocardiography, Ventilation-perfusion (V/Q) scanning, Computed tomographic pulmonary angiography (CTPA), Pulmonary angiography, Cardiac catheterization, Magnetic resonance imaging (MRI).

• #2 Pulmonary Arterial Hypertension Symptoms and Diagnosis | American Lung Association

  https://www.lung.org/lung-health-diseases/lung-disease-lookup/pulmonary-arterial-hypertension/symptoms-diagnosis

  Delayed Diagnosis […] As mentioned, PAH can be hard to diagnose. Often there is a delay in diagnosing PAH of up to two or more years. This can be attributed to several factors: […] Initial symptoms are often mild and non-specific […] As the disease progresses it is sometimes misdiagnosed as other conditions such as asthma or congestive heart failure […] Younger patients and patients with a history of a common respiratory disorder frequently have delayed diagnosis

• #2 Treating and Managing Pulmonary Arterial Hypertension | American Lung Association

  https://www.lung.org/lung-health-diseases/lung-disease-lookup/pulmonary-arterial-hypertension/treating-and-managing

  Studies indicate that early diagnosis is associated with improved survival rates and will help with getting started on the right treatment path. […] If you are newly diagnosed with PAH, you should be referred to a pulmonary hypertension specialist and if possible be seen at an accredited pulmonary hypertension care center for thorough evaluation. […] Many pulmonary hypertension care centers require visits every few months and regular testing such as echocardiograms and 6-minute walk testing. Your doctor may also have you complete cardiopulmonary exercise testing (CPET), a specialized type of exercise test that measures your exercise ability. […] It is also important to stay up to date on all recommended vaccinations. […] The outcome for untreated PAH is poor. […] The mean survival of untreated IPAH is 2 to 3 years from the diagnosis.

• #2 Pulmonary Hypertension: Diagnosis and Treatment | AAFP

  https://www.aafp.org/pubs/afp/issues/2016/0915/p463.html/1000

  Pulmonary hypertension is a common, complex group of disorders that result from different pathophysiologic mechanisms but are all defined by a mean pulmonary arterial pressure of 25 mm Hg or greater. […] Diagnosis can be challenging and requires a stepwise evaluation. Echocardiography is recommended as the initial step in the evaluation of patients with suspected pulmonary hypertension. A definitive diagnosis cannot be made on echocardiographic abnormalities alone, and some patients require invasive evaluation by right heart catheterization. […] There is limited evidence to guide screening for pulmonary hypertension in asymptomatic individuals, even in high-risk groups, which leads to significant delays in diagnosis. […] A stepwise approach can minimize the risks and costs of unnecessary testing. Physicians should initially consider the history, clinical findings, and targeted noninvasive testing, particularly echocardiography.

• #2 Pulmonary hypertension: diagnosis, imaging techniques, and novel therapies – Goldberg – Cardiovascular Diagnosis and Therapy

  https://cdt.amegroups.org/article/view/15006/16426

  Pulmonary hypertension (PH), defined as the elevation of mean pulmonary arterial pressure (mPAP) above 25 mmHg, has numerous causes, which the World Health Organization (WHO) has divided into five distinct categories based upon the underlying mechanism of action. […] Identification of PH depends on a strong clinical suspicion, a detailed history, and a thorough physical exam. […] Transthoracic echocardiogram (TTE) is the initial screening test of choice. […] Typical symptoms of PH include dyspnea, fatigue, angina, or syncope. […] Physical exam findings in PH correlate to the degree of right heart failure. […] Numerous laboratory parameters have been analyzed as potential biomarkers for the diagnosis and monitoring of PH. […] In patients with suspected PH based on clinical history, physical exam findings, and with or without ECG evidence of right heart failure, TTE is the preferred, non-invasive screening test.

• #2 Pulmonary Hypertension: Diagnosis and Treatment | AAFP

  https://www.aafp.org/pubs/afp/issues/2016/0915/p463.html/1000

  Echocardiography is the initial noninvasive diagnostic test, according to national guidelines. […] An estimated systolic pulmonary arterial pressure of 35 to 40 mm Hg or greater on echocardiography is suggestive of pulmonary hypertension. […] A meta-analysis calculated the accuracy of echocardiography vs. right heart catheterization for diagnosing pulmonary hypertension and found a sensitivity of 83% (95% confidence interval [CI], 73 to 90), a specificity of 72% (95% CI, 53 to 85). […] Some patients require right heart catheterization, which is important for classification and subsequent treatment options. […] The diagnostic classification of pulmonary hypertension determines the treatment options. Evidence supporting targeted treatment is available only for pulmonary arterial hypertension or chronic thromboembolic pulmonary hypertension. […] For the other classes, there are no data on treatment effectiveness, and for some therapies, there is evidence of harm.

• #2 Diagnosis of pulmonary hypertension

  https://pmc.ncbi.nlm.nih.gov/articles/PMC6351333/

  As little or no progress has been made in earlier diagnosis, this Task Force recommends more aggressive assessment and screening of some of these high-risk populations. […] The current diagnosis Task Force undertook a systematic review of the published literature for screening tools available for CTD-PAH. […] The utility of the ECG as a screening tool in complicated patients or those early in the course of their disease is uncertain. […] A normal ECG does not exclude PH. […] Echocardiographic screening is recommended in all patients with portal hypertension. If a tricuspid regurgitant jet of 3.4ms1 or right atrial or right ventricular enlargement or dysfunction is found, then further evaluation with RHC and referral to PH expert centre is recommended.

• #2 Pulmonary Arterial Hypertension: Symptoms, Causes, and Treatments

  https://www.webmd.com/lung/pulmonary-arterial-hypertension

  Chest X-ray: An X-ray can show if your arteries or heart are enlarged. Chest X-rays can help find other lung or heart conditions that may be causing the problems. […] Exercise testing: Your doctor may want you to run on a treadmill or ride a stationary bike while you are hooked up to a monitor, so they can see any changes in your oxygen levels, heart function, lung pressure, or other things. […] If these tests show that you might have pulmonary hypertension, your doctor will need to do a right heart catheterization to be sure. Here’s what happens during that test: The doctor places a catheter into a large vein, most often the jugular vein in your neck or femoral vein in your leg, and then threads it into the right side of your heart. A monitor records the pressures in the right side of the heart and in the pulmonary arteries. The doctor may also inject medicines into the catheter to see if the pulmonary arteries are stiff. This is called a vasoreactivity test. […] Right heart catheterization is safe. The doctor will give you a sedative and use local anesthesia. You can usually go home the same day, although you will need someone to drive you home.

• #2 Guidelines on the Diagnosis and Treatment of Pulmonary Hypertension: Summary of Recommendations | Archivos de Bronconeumología

  https://www.archbronconeumol.org/es-guidelines-on-diagnosis-treatment-pulmonary-articulo-S157921291830051X

  The diagnostic algorithm of PH is shown in Fig. 1. TTE will be performed if PH is suspected. If the probability of PH is intermediate or high, left heart disease (PH group 2) and chronic respiratory disease (PH group 3) will be ruled out. Patients in these PH groups or those with severe right ventricular dysfunction will be referred to an expert in PH. […] The diagnosis of pulmonary veno-occlusive disease (PVOD) or pulmonary capillary hemangiomatosis (PCH) is based on clinical data, very low carbon dioxide diffusing capacity, severe hypoxemia, and consistent findings on high-resolution computed tomography (HRCT). […] The definitive diagnosis of PH is established with RHC. Indications include: 1) correct diagnosis or exclusion of PH in candidates for surgery (transplantation, lung volume reduction); 2) suspected concomitant PAH or chronic thromboembolic pulmonary hypertension (CTEPH); 3) repeated episodes of right heart failure, and 4) inconclusive TTE in cases with high suspicion of PH.

• #2 Pulmonary hypertension diagnosis: Tests, criteria, what to expect

  https://www.medicalnewstoday.com/articles/pulmonary-hypertension-diagnosis

  An ECG measures the electrical signals of the heart. By itself, this test is not enough to diagnose pulmonary hypertension. […] A nuclear scan, or ventilation/perfusion scan, examines the way blood flows through the lungs in order to search for blood clots. […] An echocardiogram is a noninvasive, painless procedure. A doctor can use the test to make a preliminary diagnosis of pulmonary hypertension by measuring the pressure on the right side of the heart and looking at how well the heart is functioning in general. […] According to the Pulmonary Hypertension Association, right-heart catheterization is the gold standard of testing and the most useful and accurate test for diagnosing pulmonary hypertension. […] If a doctor or person wants to test for HPAH, genetic testing is available. It can tell if a person has a genetic mutation that could or has caused PAH to occur.

• #2 Pulmonary Hypertension – The Path to Diagnosis | myPHteam

  https://www.myphteam.com/resources/pulmonary-hypertension-the-path-to-diagnosis

  An echocardiogram is an imaging test thats important for the diagnosis of PH. […] Cardiac catheterization, or right-heart catheterization, is considered a gold-standard test for diagnosing PH. […] You may be asked to walk on a treadmill or ride a bike for several minutes while your oxygen levels and several other variables are measured. […] The six-minute walk test is an exercise test in which a person tries to walk for six minutes on flat ground. Its used to help evaluate a persons exercise tolerance level. […] Pulmonary function testing (PFT) measures lung function. […] Imaging tests help doctors visualize and diagnose problems with the structure of the heart and lungs. […] Blood samples tested in the lab can reveal many important clues about pulmonary hypertension. […] The process of ruling out similar conditions is referred to as differential diagnosis. Pulmonary hypertension has symptoms in common with cardiovascular disease and lung disease, such as asthma. […] Your doctor may be able to quickly rule out many of these conditions based on your medical and family history or simple blood tests. Other disorders may require time and repeated tests before they can be confirmed or ruled out.

• #2 Pulmonary Hypertension Causes, Symptoms, Diagnosis & Treatment

  https://www.medicinenet.com/pulmonary_hypertension/article.htm

  Pulmonary hypertension is defined as the mean pulmonary artery blood pressure greater than 25 millimeters of mercury (mmHg) measured by right heart catheterization. […] Other tests available for diagnosing pulmonary hypertension include an electrocardiogram (ECG, EKG), chest X-ray, and echocardiogram. […] Sleep studies can confirm the diagnosis of sleep apnea and its severity and management options such as CPAP therapy.

• #2 Pulmonary hypertension diagnosis: Tests, criteria, what to expect

  https://www.medicalnewstoday.com/articles/pulmonary-hypertension-diagnosis

  Several tests can help a doctor determine if a person has pulmonary hypertension. The tests are mostly outpatient procedures with minimal risk to the person getting tested. […] A doctor may recommend one or more tests to help diagnose pulmonary hypertension and its causes. […] This article lists some of the most common tests doctors may use to diagnose pulmonary hypertension. […] As part of an initial diagnosis of pulmonary hypertension, a doctor may order a chest X-ray. […] Before diagnosing pulmonary hypertension, a doctor will likely order blood work or tests. […] A 6-minute walk test, or exercise tolerance test, can show how well a person responds to exercise. […] A pulmonary function test can show: how well the lungs exchange oxygen, the capacity of the lungs, how much air moves in and out of the lungs with each breath.

• #2 Diagnosing Pulmonary Hypertension Through Non-invasive Methods < Yale School of Medicine

  https://medicine.yale.edu/news-article/diagnosing-pulmonary-hypertension-through-non-invasive-methods/

  The study revealed that two non-invasive variables in particular gas exchange-derived pulmonary vascular capacitance [measured during exercise tests] and delta end-tidal carbon dioxide [measures cardiac output] were the strongest in determining whether interstitial lung disease with pulmonary hypertension was present. Furthermore, using CART statistical analysis, the team found that the combination of gas exchange-derived pulmonary vascular capacitance, estimated right ventricular systolic pressure, and an elevated FVC to DLCO ratio can predict pulmonary hypertension in interstitial lung disease with high sensitivity and specificity. […] Fortunately for patients with a pulmonary hypertension diagnosis, medications are effective in reducing poor outcomes and improving breathing and exercise tolerance. Because earlier use of medication results in better outcomes, the team hopes its work can help lead to faster and more efficient diagnoses.

• #2 Pulmonary Arterial Hypertension Symptoms and Diagnosis | American Lung Association

  https://www.lung.org/lung-health-diseases/lung-disease-lookup/pulmonary-arterial-hypertension/symptoms-diagnosis

  How Pulmonary Arterial Hypertension Is Diagnosed […] Because symptoms are similar to other common lung diseases, it can often be hard to diagnose PAH. Diagnosis is a process of eliminating other diseases. With the help of lung and heart specialists (pulmonologist and cardiologist) you will need to complete several tests, such as: […] Blood tests: Including HIV, thyroid tests, autoimmune disease panels (test for systemic lupus erythematosus, scleroderma, and rheumatoid arthritis), liver tests and blood chemistry tests. […] Electrocardiogram: Shows the electrical activity of the heart and may help detect abnormalities. Doctors may also be able to detect signs of strain on the right side of the heart. […] Lung function tests (breathing tests): Checks for diseases like asthma or COPD.

• #2

  https://www.nhs.uk/conditions/pulmonary-hypertension/diagnosis/

  Pulmonary hypertension can be difficult to diagnose because the symptoms are similar to those of other heart or lung conditions. […] If a GP thinks you may have pulmonary hypertension, they’ll recommend further tests. […] The 2 main tests used to help diagnose the condition are: an echocardiogram a scan that uses high-frequency sound waves to create an image of the heart; it’s used to estimate the pressure in your pulmonary arteries and test how well both sides of your heart are pumping […] right heart catheterisation a thin, flexible tube (catheter) is inserted into a vein in your neck, arm or groin, and passed through to your pulmonary artery to confirm a diagnosis by accurately measuring the blood pressure in the right side of your heart and pulmonary arteries; it’s carried out in specialist national pulmonary hypertension centres. […] If you’re diagnosed with pulmonary hypertension, your condition will be classified depending on how severe your symptoms are.

• #2 Pulmonary Hypertension – Pulmonary Disorders – Merck Manual Professional Edition

  https://www.merckmanuals.com/professional/pulmonary-disorders/pulmonary-hypertension/pulmonary-hypertension

  When the initial evaluation suggests a diagnosis of pulmonary hypertension, pulmonary artery catheterization is necessary to measure the following: Right atrial pressure, Right ventricular pressure, Pulmonary artery pressure, Pulmonary artery wedge pressure, Cardiac output, Left ventricular diastolic pressure. […] Echocardiography findings of right heart systolic dysfunction (eg, tricuspid annular plane systolic excursion) and certain right heart catheterization results (eg, low cardiac output, very high mean pulmonary artery pressures, and high right atrial pressures) indicate that pulmonary hypertension is severe. […] Confirm the diagnosis by right heart catheterization.

• #2 Unmet Clinical Needs in the Diagnosis and Management of Pulmonary Arterial Hypertension

  https://www.ajmc.com/view/unmet-clinical-needs-diagnosis-management-pulmonary-arterial-hypertension

  The clinical classification of PH has undergone several revisions over the last 50 years. […] The 2022 ESC/ERS guidelines state that PAH is characterized as a mean pulmonary artery pressure of at least 25 mmHg, pulmonary wedge pressure of no more than 15 mmHg, and pulmonary vascular resistance of at least 3 Wood units. […] Advances are needed to support the early identification and diagnosis of patients with PAH. Additionally, tools for risk assessment to predict disease worsening should be developed. These approaches will allow for earlier treatment initiation with safe and effective options that prevent PAH progression and improve patient outcomes compared with those obtained using current approaches.

• #2 Managing Pulmonary Arterial Hypertension: Diagnosis, Classification, and Treatment Strategies

  https://www.pharmacytimes.com/view/managing-pulmonary-arterial-hypertension-diagnosis-classification-and-treatment-strategies

  The group we’ll be talking about today is group 1, which is [PAH]. […] According to Smith, the PAH group includes patients who have idiopathic disease, heritable disease, and drug-induced disease. […] For patients who meet the necessary criteria, Smith explained that vasoreactivity testing is performed. […] What were looking for is the mPAP to drop by at least 10 mm Hg to a level that’s less than 40 [mm Hg]. […] According to Smith, one of the unique things about PAH management is that it uses a prognosis-based algorithm. […] Currently, the European prognosis-based algorithm is used across the United States and categorizes patients into 1 of 3 groups: low risk, intermediate risk, and high risk. […] There are also certain variables that are assessed at the time of diagnosis, such as the 6-minute walk distance, brain natriuretic peptide (BNP) levels, and World Health Organization (WHO) functional class.

• #2 Evaluation and Diagnosis of Pulmonary Arterial Hypertension | USC Journal

  https://www.uscjournal.com/articles/evaluation-and-diagnosis-pulmonary-arterial-hypertension-1?language_content_entity=en

  The goals of right heart catheterization, in addition to making the diagnosis, are to measure right atrial and ventricular pressures, pulmonary vascular resistance, and cardiac output/index (end organ function), to evaluate for the presence of left-to-right shunts, and to test the patient’s response to acute vasodilators such as adenosine, prostacyclin, or nitric oxide. […] The algorithm developed by the ACCP should be used as a guide for diagnostic strategy for the initial evaluation.

• #2 Pulmonary Arterial Hypertension Symptoms and Diagnosis | American Lung Association

  https://www.lung.org/lung-health-diseases/lung-disease-lookup/pulmonary-arterial-hypertension/symptoms-diagnosis

  6-Minute Walk Test: Objectively measures how far you can walk and to see if your oxygen levels drop when you are physically active. […] Echocardiogram: Ultrasound of the heart to check the size and condition of the chambers of the heart. It can also be used to estimate the blood pressure in the pulmonary arteries. […] Right Heart Catheterization: This test is invasive, so it is not usually performed unless other tests cannot produce a firm diagnosis. It involves inserting a catheter (small tube) into a large vein in either the neck, arm, or groin, and threading it through the right side of the heart and into the pulmonary artery. This allows measurement of the blood pressure in the lungs. […] Diagnosing Heritable PAH (HPAH) […] Diagnosis includes exclusion of other causes, confirmation of a mutation in one of the genes noted to be associated with HPAH, and confirmation of PAH in one or more family members.

• #2 Pulmonary Arterial Hypertension: Practice Essentials, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/303098-overview

  Pulmonary hypertension, defined as a mean pulmonary arterial pressure greater than 20 mm Hg at rest or greater than 30 mm Hg during exercise, is often characterized by a progressive and sustained increase in pulmonary vascular resistance that eventually may lead to right ventricular failure. It can be a life-threatening condition if untreated. […] The World Health Organization (WHO) has divided pulmonary hypertension into five groups on the basis of similarities in pathophysiology, clinical presentation, and therapeutic options. […] This review focuses on group 1 pulmonary hypertension, which is also referred to as pulmonary arterial hypertension (PAH). […] In patients with symptoms of suspected obstructive sleep apnea, polysomnography should be performed. Polysomnography may offer both diagnostic and therapeutic options for sleep-disordered breathing.

• #2 Pulmonary Hypertension Diagnosis | Temple Health

  https://www.templehealth.org/services/conditions/pulmonary-hypertension/diagnosis

  Your doctor may use exercise testing to determine the severity of your pulmonary hypertension. […] These tests can help your doctor classify your pulmonary hypertension into one of 4 categories: […] To be evaluated for pulmonary hypertension, schedule an appointment or call 800-TEMPLE-MED (800-836-7536) today.

• #2 What if the Diagnosis Is Pulmonary Hypertension? > News > Yale Medicine

  https://www.yalemedicine.org/news/pulmonary-hypertension-diagnosis

  Often, patients go on for months or maybe up to a year or two without being diagnosed. […] PAH is often missed by community physicians, who dont have the training and expertise to pick up its symptoms. Often, patients go on for months or maybe up to a year or two without being diagnosed, says Dr. Singh, adding that it is a disease that develops slowly over time. Patients may be told that its asthma or COPD [chronic obstructive pulmonary disease] because of the symptoms. […] McGrath was referred to the Yale Medicine PVD Program because it is one of the few centers in the nation accredited by the Pulmonary Hypertension Association, and the only such program in the state. […] There are four functional classes of PH disease with class 4 being the most severe, Dr. Singh explains. When he first met McGrath, she was already at class 4.

• #2 Managing Pulmonary Arterial Hypertension: Diagnosis, Classification, and Treatment Strategies

  https://www.pharmacytimes.com/view/managing-pulmonary-arterial-hypertension-diagnosis-classification-and-treatment-strategies

  According to Smith, patients who are lower or intermediate risk will be started on oral combination therapies, such as macitentan and tadalafil (Opsynvi; Johnson Johnson), which is an EDN receptor agonist and PDE5 inhibitor that was approved in March 2024. […] For patients who are categorized as high risk, they would be started on the oral combination therapy and a PCN therapy. […] In 3 to 6 months, there’s a simplified algorithm that’s used to risk stratify a patient. […] The goal of pharmacotherapy is to get all patients to low risk, so if you’re reassessing a patient and they’re not low risk, you’re either going to be changing a drug, increasing the dose, or adding an additional agent, Smith said. […] If [the patient is] intermediate high or high risk, you would add a therapy or refer the patient to lung transplant, which would be the curative procedure for this disorder.

• #2 Guidelines on the Diagnosis and Treatment of Pulmonary Hypertension: Summary of Recommendations | Archivos de Bronconeumología

  https://www.archbronconeumol.org/en-guidelines-on-diagnosis-treatment-pulmonary-articulo-S157921291830051X

  Pulmonary hypertension (PH) is a hemodynamic, pathophysiological disorder defined by elevated mean pulmonary arterial pressure (mPAP) 25mmHg, measured by right heart catheterization (RHC). PH can occur in various clinical processes, that can be classified into 5 groups. […] Transthoracic echocardiography (TTE) is the main tool for the early detection and screening of PH. The probability of PH according to TTE findings is shown in Table 3. […] TTE screening for PH is recommended in asymptomatic subjects in the following risk groups: Patients with systemic sclerosis. First-degree relatives of patients with a diagnosis of hereditary pulmonary arterial hypertension (PAH). Patients with portal hypertension who are candidates for liver transplantation. […] The diagnostic algorithm of PH is shown in Fig. 1. TTE will be performed if PH is suspected. If the probability of PH is intermediate or high, left heart disease (PH group 2) and chronic respiratory disease (PH group 3) will be ruled out. Patients in these PH groups or those with severe right ventricular dysfunction will be referred to an expert in PH.

• #2 A Simple Blood Test to Speed Pulmonary Hypertension Diagnosis | The University of Arizona Health Sciences

  https://healthsciences.arizona.edu/news/stories/simple-blood-test-speed-pulmonary-hypertension-diagnosis

  Health Sciences researchers are using artificial intelligence to quickly identify the chemical fingerprints of pulmonary hypertension before its too late. […] The standard procedure to detect the disease is a pulmonary artery catheterization, an invasive test where a tube is threaded from a vein in the neck or groin to the hearts right ventricle and into the pulmonary artery to measure pressure. High blood pressure in that area indicates pulmonary hypertension. […] Working in the Division of Endocrinology at the University of Arizona College of Medicine Tucson, the two researchers have created algorithms that can detect the tell-tale metabolites associated with the condition in blood samples, speeding diagnosis, providing a quicker path to treatment and potentially adding years to patients lives.

• #2 3 Tools to Help with Pulmonary Arterial Hypertension Diagnosis

  https://www.jnj.com/innovation/3-tools-to-help-diagnose-pulmonary-arterial-hypertension

  Research suggests the DETECT algorithm may reduce missed PAH diagnoses: It had a 4% rate of missed PAH diagnoses compared with 29% using other guidelines. […] Artificial intelligence (AI) may help clinicians identify the disease earlier and more quickly and accurately so that patients can access treatment and achieve better long-term outcomes. […] In the near term, these technologies offer a way to have a rapid impact on PAH diagnosis. […] The tool evaluates six variables, including vital signs, a six-minute walk test, the NT-proBNP test and renal insufficiency, and gives the patient a score between one and 14. Based on the score, physicians decide the best next steps. […] The goal is to help health centers incorporate REVEAL risk calculators into their electronic health records so that existing data is pulled in to make assessing risk easier. […] Ultimately, bringing new treatments to bear and one day curing this disease would be wonderful, says Dr. Studer. But in the near term, what’s exciting is that these technologies may offer a way to assist healthcare professionals in diagnosing PAH.

• #2 Diagnosis and Management of Pulmonary Hypertension: New Insights

  https://www.mdpi.com/2075-4418/14/18/2052

  Over the last decades, significant progress has been achieved in the pulmonary hypertension (PH) field. […] A diagnostic algorithm has been established and awareness has been raised in order to minimize diagnosis delay. […] Despite the significant progress in the PH field, there is still an urgent need for even more on-time diagnosis and fast-track referral to expert PH centers when PAH or CTEPH is suspected. […] The initial diagnosis assessment is also important to clarify the underlying cause of PH and to detect comorbidities and complications of PH. […] An electrocardiogram may raise suspicion of PAH when right ventricular strain and right axis deviation are present. […] Echocardiography is a valuable noninvasive screening tool. […] RHC is the gold standard for the diagnosis and classification of PH. […] Early diagnosis is of major importance in PH patients. Therefore, in high-risk patients screening for PH is essential.

• #2 FAQ – Pulmonary Hypertension Association

  https://phassociation.org/newly-diagnosed/faq/

  How does my doctor know I have PH? […] PH can be difficult to diagnose in a routine medical exam because the most common symptoms of PH are also associated with many other conditions. To determine if you have PH, your medical team will schedule specialized tests, possibly to include a pulmonary function test and an echocardiogram. If the results of these tests point to PH, your doctor will schedule a cardiac catheterization, sometimes referred to as a “right-heart cath.” This test allows your doctor to directly measure the pressures in your heart and lungs. Right heart catheterization is the gold standard for diagnosing PH. […] What kinds of doctors treat PH? […] PH is a rare but serious disease, and many doctors, including cardiologists and pulmonologists, have little training or experience in diagnosing and treating PH. Patients are encouraged to see a cardiologist, pulmonologist or, in some cases, a rheumatologist who treats many PH patients. These doctors are familiar with PH medications and side-effects, and can determine which treatments or combination of therapies are right for you.

• #2 Diagnosis – PHA Europe

  https://www.phaeurope.org/about-ph/diagnosis/

  Pulmonary arterial hypertension is often not diagnosed in a timely manner because its early symptoms can be confused with those of other cardio-respiratory conditions. Symptoms can initially be subtle and relatively non-specific. A process of exclusion generally makes diagnosis of PAH by looking for and ruling out other diseases (see below). […] In fact there is often a lengthy delay between the time when patients first visit their general practitioner and the time when they receive specialist care at a hospital. The average delay is 2,5 years. […] The evaluation of a patient with suspected pulmonary hypertension requires a series of investigations intended to: confirm the diagnosis; establish the type of PH according to the current diagnostic classification (see specific section) and, within PAH, the particular sub-group; evaluate the functional and haemodynamic impairment.

• #2 Pulmonary Hypertension: Symptoms, Treatment

  https://my.clevelandclinic.org/health/diseases/6530-pulmonary-hypertension-ph

  Most cases of pulmonary hypertension cant be cured. Your provider may prescribe medications to: Ease your symptoms. Improve your quality of life. Slow down the progression of the disease. […] Without treatment, pulmonary hypertension leads to right-sided heart failure and, ultimately, death. Treatment can help you live longer and give you a better quality of life.

• #2 Diagnosis and Treatment of Pulmonary Hypertension | ECR Journal

  https://www.ecrjournal.com/articles/diagnosis-and-treatment-pulmonary-hypertension?language_content_entity=en

  RHC is useful in diagnosing PH, assessing its severity and testing vasoreactivity. If mPAP is 25 mmHg the diagnosis of PH is excluded and another cause to explain patients symptoms should be sought. […] If the cause associated with PAH is not clear from the patients history, further tests need to be done. […] In the case of a positive vasoreactivity test, high doses of CCB should be preferred. […] A major issue related to PAH patients care is the high risk of pregnancy. […] PAH is a progressive and fatal disease, which may rapidly lead to right ventricular failure and death if left untreated. […] General practitioners, cardiologists and respiratory physicians should always bear PAH in mind as a possible diagnosis when patients symptoms dont improve with conventional therapies for breathlessness.

• #3 Pulmonary Arterial Hypertension: Practice Essentials, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/303098-overview

  Pulmonary hypertension, defined as a mean pulmonary arterial pressure greater than 20 mm Hg at rest or greater than 30 mm Hg during exercise, is often characterized by a progressive and sustained increase in pulmonary vascular resistance that eventually may lead to right ventricular failure. It can be a life-threatening condition if untreated. […] The World Health Organization (WHO) has divided pulmonary hypertension into five groups on the basis of similarities in pathophysiology, clinical presentation, and therapeutic options. […] This review focuses on group 1 pulmonary hypertension, which is also referred to as pulmonary arterial hypertension (PAH). […] In patients with symptoms of suspected obstructive sleep apnea, polysomnography should be performed. Polysomnography may offer both diagnostic and therapeutic options for sleep-disordered breathing.

• #3 Diagnosis – Pulmonary Hypertension Association

  https://phassociation.org/patients/diagnosis/

  Diagnosing Pulmonary Hypertension […] Pulmonary hypertension (PH) can be difficult to diagnose in a routine medical exam because the most common symptoms of PH, such as breathlessness, fatigue and dizziness, are also associated with many other conditions. If your doctor suspects that you have PH, he or she will want to review your medical and family history, perform a physical exam and perform one or more diagnostic tests. […] To determine if you have PH and what type, your medical team will schedule specialized tests. If your medical team suspects PH as a result of one or more of the following tests, they will go on to schedule a right-heart catheterization, which is required to confirm diagnosis. […] If the results of initial tests point to PH, your doctor will schedule a right-heart catheterization (commonly referred to as a “right heart cath”). Right-heart catheterization is one of the most accurate and useful tests to get a definitive diagnosis for pulmonary hypertension. This is the only test that directly measures the pressure inside the pulmonary arteries, and it should be done in all patients at least once to confirm a patient’s diagnosis of PH. During the test, doctors insert a catheter (a thin rubber tube) through a large vein in the patient’s groin or neck. They then pass the catheter up into the patient’s heart to measure the blood pressure in the right side of the heart and lungs.

• #3 Pulmonary hypertension: diagnosis, imaging techniques, and novel therapies – Goldberg – Cardiovascular Diagnosis and Therapy

  https://cdt.amegroups.org/article/view/15006/16426

  Pulmonary hypertension (PH), defined as the elevation of mean pulmonary arterial pressure (mPAP) above 25 mmHg, has numerous causes, which the World Health Organization (WHO) has divided into five distinct categories based upon the underlying mechanism of action. […] Identification of PH depends on a strong clinical suspicion, a detailed history, and a thorough physical exam. […] Transthoracic echocardiogram (TTE) is the initial screening test of choice. […] Typical symptoms of PH include dyspnea, fatigue, angina, or syncope. […] Physical exam findings in PH correlate to the degree of right heart failure. […] Numerous laboratory parameters have been analyzed as potential biomarkers for the diagnosis and monitoring of PH. […] In patients with suspected PH based on clinical history, physical exam findings, and with or without ECG evidence of right heart failure, TTE is the preferred, non-invasive screening test.

• #3 Pulmonary Arterial Hypertension Symptoms and Diagnosis | American Lung Association

  https://www.lung.org/lung-health-diseases/lung-disease-lookup/pulmonary-arterial-hypertension/symptoms-diagnosis

  6-Minute Walk Test: Objectively measures how far you can walk and to see if your oxygen levels drop when you are physically active. […] Echocardiogram: Ultrasound of the heart to check the size and condition of the chambers of the heart. It can also be used to estimate the blood pressure in the pulmonary arteries. […] Right Heart Catheterization: This test is invasive, so it is not usually performed unless other tests cannot produce a firm diagnosis. It involves inserting a catheter (small tube) into a large vein in either the neck, arm, or groin, and threading it through the right side of the heart and into the pulmonary artery. This allows measurement of the blood pressure in the lungs. […] Diagnosing Heritable PAH (HPAH) […] Diagnosis includes exclusion of other causes, confirmation of a mutation in one of the genes noted to be associated with HPAH, and confirmation of PAH in one or more family members.

• #3 Pulmonary Arterial Hypertension Symptoms and Diagnosis | American Lung Association

  https://www.lung.org/lung-health-diseases/lung-disease-lookup/pulmonary-arterial-hypertension/symptoms-diagnosis

  How Pulmonary Arterial Hypertension Is Diagnosed […] Because symptoms are similar to other common lung diseases, it can often be hard to diagnose PAH. Diagnosis is a process of eliminating other diseases. With the help of lung and heart specialists (pulmonologist and cardiologist) you will need to complete several tests, such as: […] Blood tests: Including HIV, thyroid tests, autoimmune disease panels (test for systemic lupus erythematosus, scleroderma, and rheumatoid arthritis), liver tests and blood chemistry tests. […] Electrocardiogram: Shows the electrical activity of the heart and may help detect abnormalities. Doctors may also be able to detect signs of strain on the right side of the heart. […] Lung function tests (breathing tests): Checks for diseases like asthma or COPD.

• #3 Pulmonary Hypertension – The Path to Diagnosis | myPHteam

  https://www.myphteam.com/resources/pulmonary-hypertension-the-path-to-diagnosis

  An echocardiogram is an imaging test thats important for the diagnosis of PH. […] Cardiac catheterization, or right-heart catheterization, is considered a gold-standard test for diagnosing PH. […] You may be asked to walk on a treadmill or ride a bike for several minutes while your oxygen levels and several other variables are measured. […] The six-minute walk test is an exercise test in which a person tries to walk for six minutes on flat ground. Its used to help evaluate a persons exercise tolerance level. […] Pulmonary function testing (PFT) measures lung function. […] Imaging tests help doctors visualize and diagnose problems with the structure of the heart and lungs. […] Blood samples tested in the lab can reveal many important clues about pulmonary hypertension. […] The process of ruling out similar conditions is referred to as differential diagnosis. Pulmonary hypertension has symptoms in common with cardiovascular disease and lung disease, such as asthma. […] Your doctor may be able to quickly rule out many of these conditions based on your medical and family history or simple blood tests. Other disorders may require time and repeated tests before they can be confirmed or ruled out.

• #3 Pulmonary Hypertension: Diagnosis and Management – Indian Journal of Cardiovascular Disease in Women

  https://ijcdw.org/pulmonary-hypertension-diagnosis-and-management/

  Pulmonary hypertension (PH) affects 1% of people worldwide. Changes in the pulmonary vasculature, obstructive lesions in the pulmonary arteries, and an increase in pulmonary artery pressure are the hallmarks of PH, a progressive and deadly cardiovascular illness. […] One of the more severe and well-researched types of PH is pulmonary arterial hypertension (PAH), which is treatable with medication. […] The main characteristics of PAH (group 1) are discussed in this article, along with new and existing treatment options for the condition. […] To correctly assign a clinical group and identify suspected cases of PH, a thorough clinical assessment is necessary. […] Dyspnea, exhaustion, syncope, and symptoms of right heart failure are common in PAH. […] Routine blood investigations such as complete blood picture, liver function test, renal function test, thyroid function tests, brain natriuretic peptide (BNP), and N-terminal pro-BNP (NT-proBNP) testing are done in all patients.

• #3 Managing Pulmonary Arterial Hypertension: Diagnosis, Classification, and Treatment Strategies

  https://www.pharmacytimes.com/view/managing-pulmonary-arterial-hypertension-diagnosis-classification-and-treatment-strategies

  Pulmonary hypertension is a generic term encompassing a group of diseases that is diagnosed using a right heart catheterization, which is an invasive procedure with venous puncture, explained Zachary R Smith, PharmD, FCCP, BCPS, BCCCP, during Asembia’s AXS24 Summit in Las Vegas. […] In large epidemiologic studies of patients, a normal mean pulmonary arterial pressure [mPAP] is 14 mm Hg. For patients with pulmonary hypertension, it’s defined as an mPAP greater than 20 [mm Hg], Smith said. […] However, Smith explained that the clinical classification for pulmonary hypertension requires further specification to one of 5 groups, including pulmonary arterial hypertension (PAH), pulmonary hypertension associated with left heart disease, pulmonary hypertension associated with lung disease, pulmonary hypertension associated with pulmonary artery obstructions, and pulmonary hypertension with unclear and/or multifactorial mechanisms.

• #3 A Simple Blood Test to Speed Pulmonary Hypertension Diagnosis | The University of Arizona Health Sciences

  https://healthsciences.arizona.edu/news/stories/simple-blood-test-speed-pulmonary-hypertension-diagnosis

  Health Sciences researchers are using artificial intelligence to quickly identify the chemical fingerprints of pulmonary hypertension before its too late. […] The standard procedure to detect the disease is a pulmonary artery catheterization, an invasive test where a tube is threaded from a vein in the neck or groin to the hearts right ventricle and into the pulmonary artery to measure pressure. High blood pressure in that area indicates pulmonary hypertension. […] Working in the Division of Endocrinology at the University of Arizona College of Medicine Tucson, the two researchers have created algorithms that can detect the tell-tale metabolites associated with the condition in blood samples, speeding diagnosis, providing a quicker path to treatment and potentially adding years to patients lives.

• #3 Diagnosis and Treatment of Pulmonary Hypertension | ECR Journal

  https://www.ecrjournal.com/articles/diagnosis-and-treatment-pulmonary-hypertension?language_content_entity=en

  Pulmonary hypertension is a relatively common finding in patients with left heart disease and lung hypoxic disease. […] In this review article we describe step-by-step the diagnostic algorithm for all types of pulmonary hypertension, focusing on the early detection of signs and symptoms of the disease. […] If we consider that PAH is also related to a high morbidity and mortality risk, when left untreated, it is clear that early diagnosis and treatment of pulmonary hypertension is of paramount importance. […] According to the 2009 European Society of Cardiology (ESC)/European Respiratory Society (ERS) Guidelines on Pulmonary Hypertension, PH is defined as an increase in mean pulmonary arterial pressure (mPAP) 25 mmHg at rest as assessed by right heart catheterisation (RHC). This means that RHC remains the gold standard method for the diagnosis of PH. The same guidelines have suggested a five step diagnostic algorithm for identifying the presence, severity and cause of PH.

• #3 What if the Diagnosis Is Pulmonary Hypertension? > News > Yale Medicine

  https://www.yalemedicine.org/news/pulmonary-hypertension-diagnosis

  Today, McGrath wears the pump, which is about the length of her smartphone, at all times on the side of her body. […] Initially, McGrath had check-ups with Dr. Singh monthly, but as her condition improved, they were able to move to every three months. Her condition has improved to the point where it is now considered functional class 1, Dr. Singh says. […] For Chere, getting from severe disease to now having no limitations is quite a turnaround, he says.

• #4 Pulmonary hypertension | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/Pulmonary-hypertension

  Pulmonary hypertension is high blood pressure on the lungs. […] If you have pulmonary hypertension, it is important to be reviewed in a specialist centre regularly as the treatment is very different depending on the cause. […] Pulmonary hypertension is diagnosed via a procedure called a right heart catheterisation. Other tests including CT scans, echocardiograms, and chest x-rays may also be used but a right heart catheterisation is necessary to confirm the diagnosis. […] The series of tests required to confirm a diagnosis of pulmonary hypertension can be quite extensive. […] If your doctor asks you to have any tests before the appointment, please do so because it will speed up the process of determining what the nature of your pulmonary hypertension may be, and how to treat it.

• #4 A Simple Blood Test to Speed Pulmonary Hypertension Diagnosis | The University of Arizona Health Sciences

  https://healthsciences.arizona.edu/news/stories/simple-blood-test-speed-pulmonary-hypertension-diagnosis

  Analyzing data from blood samples with a computer algorithm, Drs. Rafikov and Rafikova zeroed in on shifts in about a dozen metabolites that signal early diagnosis. […] They then created a machine-learning algorithm a set of instructions for the computer to scan for metabolites in the blood to detect the presence of pulmonary hypertension, eventually developing a metabolic profile to hone in on 11 specific metabolites out of tens of thousands in the body. […] After further refinements, Drs. Rafikov and Rafikova hope to provide their 11-metabolite panel to physicians to screen patients with mild pulmonary hypertension symptoms and allow earlier diagnosis.

• #5 Diagnosing Pulmonary Hypertension Through Non-invasive Methods < Yale School of Medicine

  https://medicine.yale.edu/news-article/diagnosing-pulmonary-hypertension-through-non-invasive-methods/

  The study revealed that two non-invasive variables in particular gas exchange-derived pulmonary vascular capacitance [measured during exercise tests] and delta end-tidal carbon dioxide [measures cardiac output] were the strongest in determining whether interstitial lung disease with pulmonary hypertension was present. Furthermore, using CART statistical analysis, the team found that the combination of gas exchange-derived pulmonary vascular capacitance, estimated right ventricular systolic pressure, and an elevated FVC to DLCO ratio can predict pulmonary hypertension in interstitial lung disease with high sensitivity and specificity. […] Fortunately for patients with a pulmonary hypertension diagnosis, medications are effective in reducing poor outcomes and improving breathing and exercise tolerance. Because earlier use of medication results in better outcomes, the team hopes its work can help lead to faster and more efficient diagnoses.

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