Materiały źródłowe

• #1 Arteriovenous fistula | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/arteriovenous-fistula

  Symptoms of arteriovenous fistulas depend on where they form in the body. A large untreated arteriovenous fistula can lead to serious complications. […] Small arteriovenous fistulas in the legs, arms, lungs, kidneys or brain often won’t have any signs or symptoms. Small arteriovenous fistulas usually don’t need treatment other than monitoring by a health care provider. Large arteriovenous fistulas may cause signs and symptoms. […] Arteriovenous fistula signs and symptoms may include: Purplish, bulging veins seen through the skin, similar to varicose veins; Swelling in the arms or legs; Decreased blood pressure; Fatigue; Heart failure. […] A significant arteriovenous fistula in the lungs (pulmonary arteriovenous fistula) is a serious condition and can cause: Pale gray or blue lips or fingernails due to lack of blood flow (cyanosis); Fingertips to spread out and become rounder than normal (clubbing); Coughing up blood. […] An arteriovenous fistula in the digestive tract can cause gastrointestinal (GI) bleeding.

• #2 Arteriovenous (AV) Fistula: Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23450-arteriovenous-fistula

  An arteriovenous fistula is when an artery and vein connect directly, allowing blood to flow incorrectly. These can be surgically created for people who need dialysis care. They can also happen because of injuries or form in the womb before a person is born. While theyre sometimes dangerous, theyre usually treatable and often curable. […] The most common symptoms include: Swelling. This happens around the fistulas location and is most likely to happen when a fistula is just underneath your skin. Color changes of your skin (may turn purplish or bright red). Bulging or stretched veins. The area around the fistula may feel warmer than areas of your skin farther away from it. […] When a fistula on one of your limbs is very large, areas farther away from the heart than the fistula may develop symptoms of ischemia. This condition (pronounced iss-key-me-uh) is when parts of your body dont have enough blood flow.

• #3 Arteriovenous (AV) Fistula Causes, Symptoms and Treatments

  https://www.upmc.com/services/heart-vascular/conditions/av-fistula

  Small AV fistulas often dont have symptoms, but large AV fistulas can be dangerous and require treatment. […] Larger AV fistulas may cause: […] Serious complications can develop if a large AV fistula is not treated, including heart failure, blood clots, leg pain, stroke, or bleeding. […] An AV fistula in your lung can cause serious symptoms, including: […] If you have an AV fistula, you should contact your doctor immediately. If you have severe symptoms, go to the nearest hospital emergency room or dial 911. […] Some small AV fistulas may not require immediate treatment. However, large AV fistulas can cause serious symptoms if left untreated.

• #4 Arteriovenous Fistulae | Cooper University Health Care

  https://www.cooperhealth.org/services/arteriovenous-fistulae

  Small arteriovenous fistulas in your legs, arms, lungs, kidneys or brain often won’t have any symptoms and usually don’t need treatment other than monitoring by your doctor. […] Larger arteriovenous fistulas may cause symptoms. […] Arteriovenous fistula symptoms may include: Swelling and reddish appearance on the skin surface. Purplish, bulging veins that you can see through your skin, similar to varicose veins. Swelling in the arms or legs. Decreased blood pressure. Fatigue. Heart failure. […] An arteriovenous fistula in your lungs (pulmonary arteriovenous fistula) is a serious condition and can cause: Difficulty breathing, especially when exercising. Blueness of the skin. Clubbing of fingers. Stroke. […] Left untreated, an arteriovenous fistula can cause complications, some of which can be serious. These include: Heart failure. This is the most serious complication of large arteriovenous fistulas.

• #5 Arteriovenous fistula: what is it, symptoms and treatment | Top Doctors

  https://www.topdoctors.co.uk/medical-dictionary/arteriovenous-fistula

  Large arteriovenous fistulas can cause symptoms such as: large, purplish veins that you can see through the skin which may be similar in appearance to varicose veins […] low blood pressure […] swelling in the limbs […] Fatigue […] heart failure. […] Arteriovenous fistulas occurring in the lungs are very serious and can cause: coughing up blood […] a blue hue in the skin […] clubbing of fingers. […] Gastrointestinal arteriovenous fistulas may cause bleeding within the digestive system. […] Small arteriovenous fistulas usually cause no symptoms and may not require treatment. However, they should be monitored by your doctor once they have been discovered. […] Untreated fistulas can lead to serious complications.

• #6 Arteriovenous Fistula: Symptoms and Causes | Tampa General

  https://www.tgh.org/institutes-and-services/conditions/arteriovenous-fistula

  Small arteriovenous fistulas often dont produce any symptoms. Those with larger AVFs may experience: […] Another symptom that can result from an AVF is decreased blood pressure, which causes the heart to pump much faster and forcefully than normal to compensate. Eventually, this increased output can lead to heart failure.

• #7 Arteriovenous (AV) Fistula: Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23450-arteriovenous-fistula

  Large arteriovenous fistulas can also cause problems for your heart. Because blood isnt flowing correctly around the fistula, your heart tries to compensate by pumping harder. Over time, that damages your heart and causes heart failure. Symptoms of heart failure like this include: Shortness of breath (dyspnea). Fatigue. Swelling in your lower legs and feet (edema). […] The outlook for arteriovenous fistulas depends on their size, location and cause. Smaller fistulas or those in certain places often dont need treatment, and many people will only notice mild symptoms or have no symptoms at all. Larger fistulas or those that happen in critical places are the ones that can cause the most problems. […] Quick diagnosis and treatment are essential, especially with larger fistulas. Thats because larger fistulas can cause your heart to strain until you develop heart failure. While repairing a fistula often allows your heart to return to normal even after heart failure starts, this doesnt always happen. For that reason, its best to treat arteriovenous fistulas sooner rather than later.

• #8 Arteriovenous Fistula – Symptoms & Treatments | MedStar Health

  https://www.medstarhealth.org/services/arteriovenous-fistula

  An arteriovenous fistula is when an artery and a vein are directly connected rather than the normal artery-capillary-vein connections found throughout the body. Fistulas can form before birth, can be the result of injuries, and vascular surgeons can also create fistulas to support dialysis. They can occur anywhere in the body where an artery or vein are located close together. Arteriovenous fistulas can be harmless or can become a significant medical issue. […] A large arteriovenous fistula on the arms or legs can impede blood flow causing cell damage. The symptoms include: […] Swelling at the fistula site […] Vein bulge […] Warmer than the skin farther away from the site […] Skin may turn red or purple […] Pain and cramping […] Skin wounds that do not heal […] Numbness and tingling.

• #9 Arteriovenous Fistulas (AVFs) | Boston Children’s Hospital

  https://www.childrenshospital.org/conditions/arteriovenous-fistulas

  Symptoms of AVFs will vary depending on the child’s age, the location, and the rate of blood flow. […] Brain AVFs in newborns can cause heart failure. Older children may have any of the following symptoms, depending on the type of AVF, its location and whether it is causing bleeding: Headache, Dizziness, Mild heart failure symptoms (such as shortness of breath), Very prominent veins in the face and scalp, Bulging, redness, or pain in the eye, or vision problems, Hearing a whooshing or pulsing sound, Enlarged head (in infants), Stroke-like symptoms, Seizures, Cognitive impairment, Weakness or sensory loss in the legs, or (for back and spine AVFs) changes in the child’s urinary or bowel movement pattern. […] The extra strain on these veins can cause them to bleed, a potentially life-threatening or permanently disabling event. Even if there is no bleeding, chronically elevated pressure in these veins can eventually damage brain or spinal tissue, leading to progressive neurological dysfunction.

• #10 Arteriovenous Fistula – Heart and Blood Vessel Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/heart-and-blood-vessel-disorders/venous-disorders/arteriovenous-fistula

  Rarely, a large fistula may divert enough blood to cause symptoms of reduced blood flow in the affected arm or leg (steal syndrome). […] If a large acquired arteriovenous fistula is not treated, a large volume of blood flows under high pressure from the artery into the vein network. Vein walls are not strong enough to withstand such high pressure, so the walls stretch and the veins enlarge and bulge (sometimes resembling varicose veins). In addition, blood flows more freely into the enlarged veins than it would if it continued its normal course through the arteries. As a result, blood pressure can fall, sometimes causing fatigue, light-headedness, or, rarely, fainting spells. […] Eventually, the increased effort may strain the heart, causing heart failure. The larger the fistula, the more quickly heart failure can develop, causing shortness of breath and swelling of the legs. […] Rarely, a large fistula may divert enough blood from the affected arm or leg (steal syndrome) and cause numbness, pain, and cramping, bluish or grayish discoloration, and in severe cases, skin sores. When present, the skin discoloration may be difficult to appreciate on dark skin.

• #11 Arteriovenous fistula: Symptoms, outlook, and more

  https://www.medicalnewstoday.com/articles/arteriovenous-fistula

  The symptoms of an AVF can vary depending on its location and cause. […] AVFs in the arms or legs may present with: varicose veins, pain, swelling, changes in the size of each limb, skin discoloration. […] If an AVF occurs in the brain, people may experience: headaches, seizures, neurologic deficits, such as loss of coordination. […] In some cases, an AVF may restrict blood flow to certain areas of the body. Symptoms of ischemia, or reduced blood flow, include: numbness or weakness, pain or cramping, slow-healing sores. […] If people have any symptoms of an AVF, they will need to contact a doctor. […] An AVF that is not causing any symptoms or problems may not need treatment, and people may only have to monitor for any changes. […] If an AVF does need treatment, early diagnosis and treatment are essential to help prevent complications.

• #12 Arteriovenous Fistula: Definition, Symptoms, and Treatments

  https://resources.healthgrades.com/right-care/symptoms-and-conditions/arteriovenous-fistula

  AVFs can cause pain, swelling, and skin discoloration. […] Depending on the location of a congenital or accidental AVF, you may experience: pain, swelling, skin discoloration or ulceration, warm skin, bulging veins. […] People with an AVF in the brain may experience symptoms such as headaches or seizures. If an AVF develops in a limb, that limb may become larger than the other limb. […] Congenital AVFs may not cause symptoms until later in life. […] With prompt diagnosis and appropriate treatment, the outlook for people with congenital or accidental AVFs is generally good. A delay in diagnosis can make these AVFs harder to treat and may lead to complications. […] People with severe or chronic AVFs can experience complications, including: Venous hypertension, Venous insufficiency, High cardiac output failure. […] Although it is rare, high blood pressure in the veins can cause ruptures, or hemorrhages. […] Additionally, it is possible for AVFs created for hemodialysis access to fail after a certain amount of time.

• #13 Pulmonary arteriovenous fistula: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/001090.htm

  Many people have no symptoms. When symptoms occur, they can include: […] Difficulty breathing […] Shortness of breath with exertion […] Chest pain […] Blue skin (cyanosis) […] Clubbing of the fingers.

• #14 Content – Health Encyclopedia – University of Rochester Medical Center

  https://www.urmc.rochester.edu/encyclopedia/content?contenttypeid=22&contentid=pulmonaryarteriovenousfistula

  A pulmonary arteriovenous fistula is an abnormal blood vessel that creates a potentially troublesome connection between a vein and an artery in the lung. If a patient has symptoms or problems, medical attention is essential. […] In many cases there are no symptoms. In more serious cases, this circumstance can starve the body of oxygen and lead to a variety of complications. […] The most common symptoms are difficulty breathing and blood in the patients sputum. But symptoms also can include: Fingers and toes turning bluish, Fingers and toes becoming puffy or enlarged (clubbing), A murmur in the lung Nosebleeds in HHT patients.

• #15 Dural arteriovenous fistulas // Middlesex Health

  https://middlesexhealth.org/learning-center/diseases-and-conditions/dural-arteriovenous-fistulas

  Some people with dural arteriovenous fistulas (dAVFs) may not have symptoms. When symptoms occur, they may be characterized as benign or aggressive. An aggressive dAVF has more-serious symptoms. […] Aggressive dAVF symptoms can result from bleeding in the brain, known as intracerebral hemorrhage. Bleeding in the brain often causes a sudden headache. It also may cause other symptoms based on the location and size of the hemorrhage. […] Aggressive symptoms also may result from nonhemorrhagic neurological deficits (NHNDs), which can include seizures or changes in mental abilities. These symptoms usually develop more gradually, over days to weeks. Symptoms are typically related to the area of the brain affected. […] Aggressive symptoms can include: Sudden headache. Trouble walking and falls. Seizures. Speech or language issues. Facial pain. Dementia. Slowed movement, stiffness and tremor, known as parkinsonism. Trouble with coordination. Burning or prickling sensations. Weakness. Lack of interest, known as apathy. Failure to thrive. Symptoms related to increased pressure, such as headaches, nausea and vomiting.

• #16 Dural arteriovenous fistulas // Middlesex Health

  https://middlesexhealth.org/learning-center/diseases-and-conditions/dural-arteriovenous-fistulas

  Other dAVF symptoms can include hearing issues. People with hearing symptoms may hear a rhythmic sound in the ear that occurs with the heartbeat, known as pulsatile tinnitus. Symptoms also may include trouble with vision, such as: Vision changes. Eye bulge. Swelling in the eye lining. Paralysis of a muscle in or around the eye. […] Rarely, dementia may occur due to increased pressure in the blood vessels in the brain.

• #17 Dural Arteriovenous Fistula Symptoms | Expert Surgeon | Aaron Cohen-Gadol, MD

  https://www.aaroncohen-gadol.com/en/patients/arteriovenous-fistula/types/symptoms

  Dural AVFs are of particular significance because they can cause several health issues. The symptoms associated with dAVF encompass headaches, nausea, vomiting, seizures, speech or language difficulties, dementia, instability, visual deterioration, and protrusion of the eyes. […] The symptoms of an arteriovenous fistula (AVF) can vary depending on its location and size. For intracranial dural arteriovenous fistulas (dAVFs), symptoms often relate to the location of the fistula and the pattern of venous drainage. Common symptoms include: Pulsatile Tinnitus: A whooshing sound in the ear that matches the rhythm of your heartbeat. Headache: Often feels like a constant, localized pain. Neurological Deficits: This can include weakness, numbness, or other specific problems related to nerve function. Visual Disturbances: This might involve vision loss, redness in the eyes, bulging eyes, or double vision, especially with certain types of blood vessel issues in the brain. Intracranial Hemorrhage: Sudden symptoms like a severe headache, nausea, vomiting, changes in consciousness, or problems with movement or sensation. Seizures: These can occur due to irritation in the brain caused by blood flow issues or bleeding. Myelopathy: In cases of spinal blood vessel problems, symptoms may include back pain, weakness, changes in sensation, or trouble with bladder and bowel control.

• #18

  https://journals.lww.com/md-journal/fulltext/2023/11100/dural_arteriovenous_fistula_with_progressive.101.aspx

  Dural arteriovenous fistulas (DAVFs) are rare cerebral abnormal arteriovenous anastomoses. It is uncommon for DAVFs with parkinsonism and dementia, so it is easily misdiagnosed. Neuroimaging examinations show that multifocal DAVFs are related to venous thrombosis and white matter changes, suggesting that cerebral circulatory disorders caused by venous hypertensive encephalopathy lead to dementia in patients. […] Their symptoms are all manifested as progressive dementia and parkinsonism. […] The first patient developed progressive cognitive impairment, 6 months later, the patient developed bedridden, incontinence, and severe cognitive function. The second patient became increasingly bedridden 3 months after discharge and died of aspiration pneumonia. […] There are few reports of progressive dementia and parkinsonism in DAVF patients, and neurologists should be vigilant to avoid misdiagnosing DAVF.

• #19

  https://journals.lww.com/md-journal/fulltext/2023/11100/dural_arteriovenous_fistula_with_progressive.101.aspx

  However, there are few reports of progressive dementia with parkinsonism. Here, we report 2 patients with DAVFs with concurrent progressive dementia with parkinsonism. […] The patient showed progressive cognitive decline, accompanied by slow movements, bilateral upper extremity tremors, and typical Parkinsonian symptoms, with increased muscle tone in the extremities. […] The mechanism by which DAVFs cause parkinsonism is unclear. One explanation is that parkinsonism manifests due to impaired deep vein drainage and insufficient perfusion of the basal ganglia, consistent with our second case report. Another is that hypoperfusion of the frontal lobe caused by venous hypertension is considered to be causative of Parkinson disease in patients with DAVF. […] In conclusion, DAVFs accompanied by dementia and parkinsonism are easily misdiagnosed. Therefore, timely diagnosis is very important to improve treatment efficacy. For progressive dementia with Parkinson disease, when brain MRI scans show white matter lesions, the possibility of DAVF should be considered.

• #20 Arteriovenous Fistula (AVF) Doctor | NJ, NYC

  https://www.neurosurgeonsofnewjersey.com/arteriovenous-fistula-avf/

  If you have a brain AVF, you may have had some frightening symptoms or none at all. BDAVFs may cause the following: […] Seizures and strokes generally occur only when the fistula has become large enough to increase pressure around the brain. Symptoms such as headache, fatigue, memory loss or lack of concentration can occur at any stage. […] If you have a spinal AVF, you may have experienced symptoms caused by swelling near the spinal cord. SDAVF symptoms include: […] Because the initial symptoms of brain and spinal AVFs are not specific, many people experience a delayed diagnosis.

• #21 Spinal Dural Arteriovenous Fistulas

  https://pmc.ncbi.nlm.nih.gov/articles/PMC7051782/

  Spinal dural arteriovenous (AV) fistulas are the most commonly encountered vascular malformation of the spinal cord and a treatable cause for progressive para- or tetraplegia. […] The increase in spinal venous pressure leads to decreased drainage of normal spinal veins, venous congestion, and the clinical findings of progressive myelopathy. […] Despite being the most commonly encountered spinal vascular malformation, spinal dural arteriovenous fistulas (SDAVFs) are rare and still underdiagnosed entities, which, if not treated properly, can lead to considerable morbidity with progressive spinal cord symptoms. […] Initial symptoms of venous congestion are nonspecific and include difficulty in climbing stairs, gait disturbances, and, more often, sensory symptoms such as paresthesias, diffuse or patchy sensory loss, but also radicular pain that may affect both lower limbs or initially only 1 limb.

• #22 Spine Arteriovenous Fistula – Goodman Campbell

  https://www.goodmancampbell.com/conditions/brain/neurovascular/spine-arteriovenous-fistula/

  Spinal arteriovenous fistulas start off causing no symptoms, but as the fistula grows, symptoms start to develop. Common symptoms include: […] Leg weakness, tingling, numbness or burning […] Pain in the back or legs […] Changes in bowel function […] Trouble urinating […] Urinary or fecal incontinence.

• #23 Spinal Dural Arteriovenous Fistulas

  https://pmc.ncbi.nlm.nih.gov/articles/PMC7051782/

  Lower back pain without radicular distribution is also frequently encountered. […] These neurologic symptoms are progressive with time and are often ascending. […] Bowel and bladder incontinence, erectile dysfunction, and urinary retention are more often seen late in the course of the disease. […] Whereas classically the deficits are slowly progressive, an acute onset of the disease and a progressive development interrupted by intermediate remissions are also possible. […] Following complete occlusion of the fistula, the progression of the disease can be stopped in most instances; however, only two thirds of all patients have a regression of their motor symptoms (including gait and strength) and only one third show an improvement of their sensory disturbances. […] Impotence and sphincter disturbances are seldom reversible, and pain may persist. […] In rare cases of long-standing SDAVFs, patients may experience worsening despite complete occlusion.

• #24 Arteriovenous fistula // Middlesex Health

  https://middlesexhealth.org/learning-center/diseases-and-conditions/arteriovenous-fistula

  Blood clots. An arteriovenous fistula in the legs can cause blood clots to form. Leg blood clots may lead to a condition called deep vein thrombosis (DVT). DVT can be life-threatening if the clot travels to the lungs (pulmonary embolism). Depending on where the fistula is, it may lead to a stroke. […] Leg pain due to lack of blood flow (claudication). An arteriovenous fistula can block blood flow to muscles, causing leg pain. […] Internal bleeding. Arteriovenous fistulas may cause bleeding in the stomach and intestines.

• #25 Arteriovenous Fistula (AV Fistula) – MD Searchlight

  https://mdsearchlight.com/heart-health/arteriovenous-fistula-av-fistula/

  AVFs on the skin can show up as a pink stain, a mass, bulging veins, unequal limb size, or skin ulceration. They may cause a heavy feeling in the limb, that gets worse with hanging down and better with raising it. The painful sensation could be because of a lack of blood supply to tissues or compression on surrounding nerves. […] Physical exam could reveal a larger limb size, swelling, discoloration, or prominent vessels with a murmur or palpable thrill. The fistula may also show as a pulsatile lesion. Additionally, the skin over the lesion could be excessively sweaty, warm, or hairy. It could also make a noise when listened to with a stethoscope. If the mass effect impairs the function of limbs and joints, or if a lesion causes tissue death from prolonged lack of blood supply, it can show up as an impaired function of limbs and joints. […] Internal fistulas can cause blood in vomit, urine, or stool. Sometimes, these patients may present with symptoms of heart failure, especially when the fistula is between a major artery and vein.

• #26 Arteriovenous fistula: Symptoms, outlook, and more

  https://www.medicalnewstoday.com/articles/arteriovenous-fistula

  Doctors may stage AVFs from 1 to 4 to predict treatment success. A lower stage indicates milder symptoms and less severe complications. Ischemia occurs in stage 3, and heart failure in stage 4. […] It may be possible to completely reverse decompensated or severe heart failure after treating an AVF, although the outlook is much better with early diagnosis and treatment.

• #27 Arteriovenous Fistula – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK559213/

  Patients with congenital AVF may not present until later in life, and a history of trauma should be ruled out. […] Prompt recognition is crucial for favorable outcomes. […] While some congenital arteriovenous fistulas can be fatal, leading to failure to survive, the overall prognosis is good. […] The Schobinger Classification is a clinical staging system that serves to predict the success of treatment. […] Chronic venous insufficiency/venous hypertension can present as swelling of the affected extremity, which can be progressive and limit mobility. […] High cardiac output failure can occur in patients with AVFs, particularly when these become high-flow. […] Steal syndrome can occur in up to 6% of patients with an AVF or arteriovenous graft for hemodialysis. […] Hemorrhage is a much rarer complication than those above.

• #28 Arteriovenous Fistulas: Etiology and Treatment – Endovascular Today

  https://evtoday.com/articles/2012-apr/arteriovenous-fistulas-etiology-and-treatment

  A patient with an AVF may present with local symptoms and signs such as a palpable thrill, audible bruit, ischemia distal to the lesion, dilatation of the feeding artery and draining vein, or with changes of sustained venous hypertension. […] If the AVF is large enough to reduce total peripheral resistance, it will induce increased cardiac output and increased circulating volume to maintain arterial pressure. In severe, chronic cases or in patients with poor cardiac reserve, this may lead to cardiac dilation and high-output cardiac failure. […] Up to two-thirds of patients with traumatic AVFs are diagnosed within a week of injury; however, a significant subset will present with delayed symptoms weeks to years later. […] Most AVFs enlarge over time. […] The benefits of early therapy to prevent secondary complications with technically less-challenging treatment is therefore considered a good indication for treatment in nearly all patients with asymptomatic AVF, except in cases involving very small fistulas such as those occasionally associated with biopsy or other medical procedures when a conservative expectant policy can be adopted.

• #29 Dural Arteriovenous Fistula Causes, Symptoms, and Treatments

  https://www.upmc.com/services/neurosurgery/brain/conditions/neurovascular-conditions/conditions/dural-arteriovenous-fistula

  What Are the Signs and Symptoms of dAVF? […] Symptoms of dAVF can occur suddenly or gradually and may include: […] Difficulty speaking or understanding speech. […] Loss of consciousness. […] Nausea. […] Seizures. […] Severe headache. […] Vision loss or disturbances. […] Vomiting. […] Weakness, numbness, tingling, or paralysis in your face, arm, or leg, usually on one side of the body only. […] A dAVF is life-threatening and needs emergency treatment. If you have symptoms of dAVF, dial 911 right away. Getting fast treatment can reduce your risk of disability and death. […] dAVF is a life-threatening condition. Your prognosis after dAVF will depend on the severity of your condition, whether it causes symptoms, and how quickly you receive medical care.

• #30 Dural Arteriovenous Fistula Treatment Sydney – CURA Medical SpecialistsCURA Specialists

  https://curaspecialists.com.au/conditions/dural-arteriovenous-fistula-treatment-sydney/

  High-risk DAVFs may increase the risk of stroke-like symptoms such as dizziness […] High-risk DAVFs increase venous pressure in the brain, or cortical veins. This increases the risk of haemorrhage and stroke-like symptoms. […] Symptoms may not always be experienced, however, when they are experienced they may not always be due to an aggressive or benign DAVF. Signs and symptoms may include: Wooshing or humming in the ears, Headaches, Stroke-like symptoms or seizures, Visual deterioration, Eye bulging, Swelling in the eye lining (conjunctiva), Paralysis of eye movements in one direction, Cavernous sinus syndrome (a combination of the above symptoms), Cases of progressive dementia or Parkinsons due to regional venous congestion within the brain. […] If dural arteriovenous fistulae remain untreated, many symptoms can continue to worsen. The most featured complication is the rupture of one of the congested veins or a stroke caused by venous congestion.

• #31 Dural arteriovenous fistula (DAVF) Symptoms and Treatment

  https://neuroandvascular.com/blog/dural-arteriovenous-fistula-davf-symptoms-and-treatment/

  Patients with DAVFs may experience no symptoms at all. When symptoms do present, they might range from mild to severe. The symptoms are determined by the DAVFs location and drainage pattern. […] Symptoms of Dural AVF are: […] Headache […] Pulsatile tinnitus (ringing in the ears) […] Visual difficulty […] Seizures […] Bruit (sound heard due to unusual blood flow) […] DAVF can over time develop aggressive symptoms like seizures, increased brain pressure with headaches nausea and vomiting (or) cause speech issues, and weakness. […] More aggressive DAVF can rupture and cause bleeding in the brain called hemorrhage. These patients will develop sudden very severe headaches with varying symptoms of stroke neurological disability. Most typically drooping face, arm (or) leg, difficulty speaking (or) becoming confused or sleepy. […] An untreated dural AVF over a period of time may convert itself from a benign type more aggressive type and may cause a catastrophic brain hemorrhage.

• #32 Delayed Diagnosis of Spinal Dural Arteriovenous Fistula: A Case Report and Scoping Review

  https://www.mdpi.com/2077-0383/13/3/711

  Spinal dural arteriovenous fistula (SDAVF) is among the most common arterial shunt diseases typically found in middle aged or older men. […] SDAVF progression may last from several months to years, resulting in irreversible spinal cord damage. However, if it is diagnosed early and the fistula is closed, disease progression can be halted, and complete recovery is likely. […] SDAVF symptoms including progressive lower-limb weakness, paresthesia, and vesicorectal dysfunction are indications for spinal magnetic resonance imaging with subsequent spinal angiography, wherein DAVF is evidenced by extensive T2 hyperintensity and flow-void abnormalities. […] A typical patient with SDAVF has symptoms similar to thoracic myelopathy, epiconus syndrome, and conus medullaris syndrome. […] If a patient’s symptoms do not fit with common spinal stenosis, SDAVF should be included in the differential diagnosis.

• #33 Long-Term Outcome of Patients with Spinal Dural Arteriovenous Fistula: The Dilemma of Delayed Diagnosis | American Journal of Neuroradiology

  https://www.ajnr.org/content/41/2/357

  Spinal dural arteriovenous fistulas (sdAVFs) usually become symptomatic in elderly men, who are affected 5 times more often than women. Symptoms caused by sdAVF comprise gait disturbances with or without paresis, sensory disturbances in the lower extremities, pain, and sphincter and erectile dysfunctions. […] The mean duration of symptoms from onset to diagnosis was 20.2 months (median, 10 months; range, 1-20 months). […] A longer duration of symptoms from onset to diagnosis was significantly associated with worse long-term outcome (P=.008). Patients with a shorter clinical course (6 months) had an improvement of their gait disturbances up to 1 grade on the AL-score. […] Most surprising, the most stunning finding among patients in our current cohort was the long duration of symptoms of almost 2 years from onset to definite diagnosis. […] Our current analysis implies the importance of early diagnosis for a better neurologic outcome. However, despite major developments in neuroradiologic noninvasive diagnostic tools in the past decades, the diagnosis of sdAVF remains markedly delayed.

• #34 Pulmonary arteriovenous fistula: a rare cause of spontaneous hemothorax – Li – Journal of Thoracic Disease

  https://jtd.amegroups.org/article/view/28679/html

  Dyspnea and fatigue are the most common symptoms, with spontaneous hemothorax being a rare complication. […] Dyspnea and fatigue are the most common symptoms, and other clinical features include cyanosis, digital clubbing, and polycythemia. […] In conclusion, we reported a rare case of spontaneous hemothorax caused by the intrapleural rupture of PAVFs. All patients with PAVFs have a fatal risk of bleeding and should be treated promptly.

• #35 Arteriovenous fistula // Middlesex Health

  https://middlesexhealth.org/learning-center/diseases-and-conditions/arteriovenous-fistula

  An arteriovenous fistula in the digestive tract can cause gastrointestinal (GI) bleeding. […] If you have signs and symptoms of an arteriovenous fistula, make an appointment to see your health care provider. Early detection of an arteriovenous fistula may make the condition easier to treat. It may also reduce the risk of developing complications, including blood clots or heart failure. […] Left untreated, an arteriovenous fistula can cause complications. Some complications may be serious. These include: Heart failure. This is the most serious complication of large arteriovenous fistulas. Blood flows more quickly through an arteriovenous fistula than it does through typical blood vessels. The increased blood flow makes the heart pump harder. Over time, the strain on the heart can lead to heart failure.

• #36 Arteriovenous Fistulae | Cooper University Health Care

  https://www.cooperhealth.org/services/arteriovenous-fistulae

  An arteriovenous fistula in your legs can cause blood clots to form, potentially leading to deep vein thrombosis, a painful and potentially life-threatening condition if the clot travels to your lungs (pulmonary embolism). […] An arteriovenous fistula in your leg can also cause you to develop pain in your legs (claudication), or can worsen pain you already have. […] An arteriovenous fistula in your lungs may allow small blood clots to pass through to the arteries in your brain, which may cause a stroke.

• #37 Spinal Dural Arteriovenous Fistula Diagnosis & Treatment – NYC | Columbia Neurosurgery in New York City

  https://www.neurosurgery.columbia.edu/patient-care/conditions/spinal-dural-arteriovenous-fistula

  Symptoms of SDAVF are generally nonspecific, meaning they are similar to symptoms of many other problems that affect the spinal cord. These symptoms may include back pain, numbness, weakness, or pins and needles in the legs, clumsiness, difficulty walking or climbing stairs, impairment in bladder or bowel function, and sexual dysfunction. Symptoms may develop slowly and steadily, or they may progress and then stay the same for a while before progressing again. […] Many patients have symptoms for a year or more before the SDAVF is diagnosed. […] Left untreated, however, patients may experience progressive spinal cord dysfunction and ultimately paralysis.

• #38 Arteriovenous Fistula (AV Fistula) – MD Searchlight

  https://mdsearchlight.com/heart-health/arteriovenous-fistula-av-fistula/

  Some people are born with AVFs but don’t show symptoms until later in life. The location of these kinds of congenital fistulas will affect their symptoms. Some may start as low-flow and turn into high-flow lesions in adulthood. People with AVFs in the brain can have headaches, neurologic problems, seizures, or a mix. There can also be a risk of bleeding or lack of blood to the brain tissue around the AVF. […] Severe or long-term fistulas can result in high output cardiac failure. This means their heart can’t pump enough blood to meet the body’s needs. Oxygenated blood gets shunted back to the right side of the heart instead of going to the body. This forces the heart to pump more blood, leading to heart failure. A specific sign of this condition is the Nicoladoni-Israel-Branham sign a slowing heart rate when the fistula is compressed.

• #39 Dural arteriovenous fistula | Radiology Reference Article | Radiopaedia.org

  https://radiopaedia.org/articles/dural-arteriovenous-fistula?lang=us

  Dural arteriovenous fistulas (dAVF) are a heterogeneous collection of conditions that share arteriovenous shunts from dural vessels. They present variably with hemorrhage or venous hypertension and can be challenging to treat. […] Clinical presentation is highly variable and depends on the location of the supplying and draining vessels, as well as the presence of complications. Presentations include pulsatile tinnitus, cranial nerve palsies, seizures, orbital symptoms, and symptoms of venous hypertension such as raised intracranial pressure and focal neurological deficits. […] The likelihood of complications depends on the venous drainage, and not the arterial supply. Complications can include hemorrhage (subdural, intracerebral, subarachnoid) and venous congestion/hypertension and edema, leading to intracranial hypertension and spinal myelomalacia. […] Higher grades of dural arteriovenous fistulas have an annual mortality rate of ~10% and an annual risk of intracranial hemorrhage of ~8%.

• #40 Arteriovenous Fistulas (AVF) – AANS/CNS Cerebrovascular Section

  https://cvsection.org/patients/arteriovenous-fistulas/

  Many people who have an AVF experience no symptoms at all and are diagnosed by chance. Others visit a physician when problems appear, and the AVF is discovered at that time. An AVF causes four main types of symptoms: […] AVFs most common symptom is an unusual sound in one or both ears, called tinnitus. Although many patients describe it as a rushing or whooshing noise, in some it appears as a high-pitched ringing, buzzing, hissing, humming or whistling sound. […] Some patients develop difficulties including pain behind the eye, bulging of the eye, decreased vision, double vision, drooping of the eyelid and swelling of the eye itself. These symptoms typically are caused by an AVF located behind or near the eye. […] Certain patients can develop symptoms due to bleeding into the brain causing a hemorrhagic type of stroke. Patients at risk are those who have an AVF that drains blood directly into veins of the brain a condition called cortical venous drainage, or CVD. Symptoms suggestive of brain hemorrhage include sudden-onset headache, nausea, vomiting, weakness or numbness on one side of the body, difficulties with making or understanding speech, loss of vision, double vision and balance difficulties. If you experience any of these symptoms, seek medical help immediately. Brain hemorrhage is a serious form of stroke that can cause serious brain injury and even death, although many patients make good long-term recoveries. […] Patients whose AVF drains blood into veins of the brain (CVD) can also develop seizures, memory loss, and symptoms similar to a stroke, including weakness/numbness on one side of the body, difficulties in speaking or understanding speech, loss of vision, double vision and balance difficulties.

• #41 Hypoglossal canal dural arteriovenous fistula: incidence and the relationship between symptoms and drainage pattern in: Journal of Neurosurgery Volume 119 Issue 4 (2013) Journals

  https://thejns.org/view/journals/j-neurosurg/119/4/article-p955.xml

  The incidence of HC-dAVF was 4.2% (n = 10). Initial symptoms were tinnitus with headache (n = 6), tinnitus only (n = 1), ocular symptoms (n = 1), otalgia (n = 1), and congestive myelopathy (n = 1). Presenting symptoms requiring treatment included ocular symptoms (n = 4), hypoglossal nerve palsy (n = 4), aggravation of myelopathy (n = 1), and aggravation of tinnitus with headache (n = 1). […] More aggressive symptoms may develop as a result of a change in the predominant drainage route due to the development of venous stenosis or obstruction over time.

• #42 Delayed Diagnosis of Spinal Dural Arteriovenous Fistula: A Case Report and Scoping Review

  https://www.mdpi.com/2077-0383/13/3/711

  The primary reason for delayed and incorrect SDAVF diagnosis is that SDAVF is easily misrepresented as other diseases. […] SDAVF treatment includes microsurgery and embolization. The treatment goal is to prevent the flow of blood from the proximal intradural vein and fistula. If treatment is delayed, lower-limb weakness, paresthesia, and bladder–rectal dysfunction can persist. Early diagnosis and treatment are therefore essential; results emphasize their importance in SDAVF. […] Delayed diagnosis of DAVF usually causes long-term irreversible neurological complications. Thus, early diagnosis and intervention are crucial.

Zobacz więcej