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• #1 Myocarditis – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/myocarditis/symptoms-causes/syc-20352539

  Myocarditis is inflammation of the heart muscle. The condition can reduce the heart’s ability to pump blood. Myocarditis can cause chest pain, shortness of breath, and rapid or irregular heartbeats. […] Common myocarditis symptoms include: Chest pain. Fatigue. Swelling of the legs, ankles and feet. Rapid or irregular heartbeats, called arrhythmias. Shortness of breath, at rest or during activity. Lightheadedness or feeling like you might faint. Flu-like symptoms such as headache, body aches, joint pain, fever or sore throat. […] Sometimes, myocarditis symptoms are like symptoms of a heart attack. If you are having unexplained chest pain and shortness of breath, seek emergency medical help. […] When children get myocarditis, symptoms may include: Difficulty breathing. Rapid breathing. Chest pain. Rapid or irregular heartbeats, called arrhythmias. Fainting. Fever.

• #1 Myocarditis: Causes, Symptoms, Treatment & Tests You May Need

  https://www.webmd.com/heart-disease/myocarditis

  Myocarditis often has no symptoms. In fact, most people recover and never even know they had it. […] If you do have symptoms, they may include: Shortness of breath, Abnormal heartbeat, which causes fainting in rare cases, Lightheadedness, A sharp or stabbing chest pain or pressure, which may spread to your neck and shoulders, Fatigue, Signs of infection, such as Fever, Muscle aches, Sore throat, Headache, Diarrhea, Painful joints, Swollen joints, legs, feet, or neck veins, Small amounts of urine, Loss of appetite, Weakness. […] Infants are at high risk for myocarditis because they are exposed to viruses during childbirth but dont have a fully developed immune system yet. They tend to have more severe symptoms, including: Pale skin, Difficulty eating, Weakness, Irritability, Breathing problems.

• #1 Myocarditis – Wikipedia

  https://en.wikipedia.org/wiki/Myocarditis

  Myocarditis can be distinguished as either fulminant or acute based on the severity of symptoms on presentation, as well as the time course over which symptoms develop and persist. This categorization can help predict the treatment, outcomes, and complications of myocarditis. Fulminant myocarditis is defined as sudden and severe myocarditis that is associated with signs and symptoms of heart failure while at rest. More specifically, fulminant myocarditis is characterized by a distinct, rapid onset of severe heart failure symptoms, such as shortness of breath and chest pain, that develop over the course of hours to days. Additionally, treatment requires the use of medications or mechanical devices to improve heart function. […] Acute non-fulminant myocarditis has a less distinct onset in contrast to fulminant myocarditis, and evolves over days to months. While the symptoms of acute myocarditis overlap with those of fulminant myocarditis, they do not typically occur at rest, and treatment does not require the use of mechanical circulatory support.

• #1 Myocarditis – causes, symptoms & treatments – BHF

  https://www.bhf.org.uk/informationsupport/conditions/myocarditis

  Myocarditis is inflammation of the heart muscle, usually following a virus. Some people have no symptoms, but it can cause chest pains, palpitations and shortness of breath. […] People with myocarditis can get chest pain and feel breathless. Its not unusual for these symptoms to start up to two weeks after being unwell with an infection. Common symptoms of myocarditis include: chest pain or discomfort, or a feeling of tightness in the chest, shortness of breath, either at rest or when active, or in certain positions, such as lying down, unusual tiredness, palpitations (like your heart is fluttering, racing, or pounding), an irregular heartbeat, feeling light-headed or fainting, recent flu-like symptoms such as high temperature, headaches, body aches, joint pain, or sore throat, rarely, swelling in hands, legs, ankles or feet.

• #1 Myocarditis: Signs and Symptoms

  https://www.health.com/myocarditis-symptoms-8599090

  Some myocarditis symptoms are life-threatening and require emergency medical care. Call 911 or go to the hospital immediately if you experience any of the following symptoms: Severe chest pain, Difficulty breathing, Cold, pale skin, Rapid or abnormally slow heartbeat, Fainting, Confusion or agitation, Decreased urination (peeing less frequently or in abnormally small amounts). […] Myocarditis is the inflammation of the heart muscle. While some people may develop no symptoms, others may experience chest pain, fatigue, shortness of breath, and heart palpitations. Symptoms of myocarditis can develop suddenly or gradually. See a healthcare provider if you experience any myocarditis symptoms, even if they are mild. While most people recover with no ongoing health problems, myocarditis can sometimes be life-threatening and requires medical attention and treatment to prevent complications.

• #1 Myocarditis: Symptoms and Treatment for Inflammation of the Heart

  https://www.healthline.com/health/heart-disease/myocarditis

  Myocarditis refers to inflammation of your heart muscle. When the myocardium becomes inflamed, its ability to pump blood becomes less effective. This causes problems like an abnormal heartbeat, chest pain, and trouble breathing. In extreme cases, it can cause blood clots leading to a heart attack or stroke, damage to the heart, or death. […] If symptoms do develop, they often include: chest pain, heart palpitations, shortness of breath, both at rest and with exertion, fatigue, weakness, swelling in your legs or feet, lightheadedness or fainting. […] Myocarditis can be either acute or chronic. Acute refers to a condition that comes on suddenly. Chronic conditions are those that are persistent or long lasting. Acute myocarditis is typically what we think of when we talk about myocarditis. Usually, a short amount of time passes, often less than a month, between when your symptoms come on and when you receive a diagnosis. Most cases of acute myocarditis resolve after you receive treatment.

• #1 Myocarditis vs pericarditis | Top Doctors

  https://www.topdoctors.co.uk/medical-articles/pericarditis-and-myocarditis-what-s-the-difference

  It can sometimes present without any other symptoms, apart from feet and leg swelling, or pleuritic chest pain. The most common symptoms of myocarditis include rapid or irregular heartbeat, fatigue and joint stiffness as well as shortness of breath and light-headedness. […] Other symptoms of myocarditis can include: Fever, Headache, Sore throat, Body aches. […] It can be acute or chronic. Acute myocarditis resolves more easily, and its generally classified this way when the time between symptoms appearing and the time you are diagnosed is less than a month. After treatment, the majority of acute myocarditis cases improve directly or shortly afterwards. […] When your symptoms persist or become increasingly difficult to manage, this is whats known as chronic myocarditis. It appears to be related to the response of the immune system, while in reality, its frequently connected to autoimmune illnesses. This can lead to an increase in body inflammation.

• #1 Signs of Myocarditis: Symptoms and Treatments | Ada

  https://ada.com/conditions/myocarditis/

  If any symptoms are present and myocarditis is suspected, medical advice should be sought immediately. In some cases, myocarditis can cause serious complications, including heart failure, stroke and sudden death. […] In many cases, the prognosis is good, and myocarditis clears up on its own, without any complications or long-term health effects. However, sometimes the heart sustains damage, leaving a degree of heart failure that requires lifelong management. […] Myocarditis can be fatal. Death may occur if the condition worsens after diagnosis and becomes unresponsive to treatment. It may also occur suddenly where acute myocarditis has a rapid onset. […] In a small number of cases, myocarditis may persist and become chronic or long lasting. Chronic myocarditis is associated with dilated cardiomyopathy and may lead to heart failure and other serious complications.

• #1 Myocarditis: Causes, Symptoms, Treatment & Tests You May Need

  https://www.webmd.com/heart-disease/myocarditis

  Older children also get myocarditis. Sometimes, symptoms appear after an illness, but this isnt always the case. Older children might have: Pale skin, Rapid or difficult breathing, Fever, Cough, Cold hands or feet, Tiredness, Chest pain, Fainting. […] Symptoms of myocarditis include heart palpitations, weakness, chest pain, fever, and shortness of breath. These symptoms can range in severity. Some people dont have any symptoms. […] Early or mild myocarditis might not cause any symptoms. When it does, it could feel like chest pain, tiredness, irregular heartbeat, or shortness of breath.

• #1 Myocarditis – Seattle Children’s Hospital

  https://www.seattlechildrens.org/conditions/myocarditis/

  Myocarditis can weaken your childs heart muscle. If this becomes severe, the heart cannot pump enough blood to itself and the rest of the body. The heart may beat in an abnormal way (arrhythmia), which is sometimes life threatening. […] A baby with myocarditis may have these symptoms: Fever, Fast heartbeat or arrhythmia, Fast breathing, Trouble feeding or working hard to breathe when feeding, Poor weight gain or slow growth (failure to thrive), Being restless or irritable, Sweating more than normal, Having little energy or not taking interest in anything, Not putting out as much urine as normal, Skin may look blue or purple tinged, mottled (different shades or colors), grayish or paler than usual; the lips, mouth, gums, fingernails or toenails may look bluish (cyanosis), Vomiting. […] Older children may have many of the same symptoms as babies. They may also have a cough; nausea; abdominal or chest pain; and swelling in their legs, feet and face. They may be more tired than normal.

• #1 Myocarditis: Symptoms & Causes | NewYork-Presbyterian

  https://www.nyp.org/heart/heart-inflammation/myocarditis

  Many people do not experience signs or symptoms of myocarditis. Some individuals may experience a general feeling of illness but do not know that the illness is heart-related. […] Adult myocarditis symptoms may include: […] Children may or may not exhibit symptoms of myocarditis. When children experience symptoms, they are often more severe in newborns and children younger than age two. […] Symptoms of myocarditis in children may include: […] It is not unusual for myocarditis to go unnoticed in children. In many cases, the condition is not diagnosed until the child has a severe case or develops a heart arrhythmia.

• #1 Myocarditis – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/myocarditis/symptoms-causes/syc-20352539

  Contact a healthcare professional if you have symptoms of myocarditis. Symptoms of myocarditis can seem like a heart attack. Get emergency medical help if you have unexplained chest pain, rapid heartbeats or shortness of breath. […] Usually, myocarditis goes away without complications. However, severe myocarditis can permanently damage the heart muscle. Possible complications of myocarditis may include: Heart failure. Untreated, myocarditis can damage the heart muscle so that it can’t pump blood well. People with myocarditis-related heart failure may need a ventricular assist device or a heart transplant. Heart attack or stroke. If the heart muscle is damaged and can’t pump blood, the blood that collects in the heart can form clots. A heart attack can occur if a clot blocks one of the heart arteries. A stroke can happen if a blood clot in the heart travels to an artery leading to the brain. Rapid or irregular heartbeats, called arrhythmias. Damage to the heart muscle can change how the heart beats. Certain arrhythmias increase the risk of stroke. Sudden cardiac death. Certain serious irregular heartbeats can cause the heart to suddenly stop beating, a condition called sudden cardiac arrest. If it leads to death it’s called sudden cardiac death.

• #1 Myocarditis – Latest Research – Victor Chang Cardiac Research Institute

  https://www.victorchang.edu.au/heart-disease/myocarditis

  Diagnosing myocarditis can be challenging because the majority of cases have no symptoms. But early diagnosis is important to try to prevent long-term damage to the heart. […] In mild cases, myocarditis can resolve on its own with rest. Moderate to severe cases of myocarditis require medication and, in some cases, the heart may require temporary support to pump enough blood. Full recovery can take several months, but following treatment many patients can lead a long, full life. […] While myocarditis can reoccur, the risk is low. In rare cases, myocarditis can lead to dilated cardiomyopathy (DCM), the most common cause of heart failure. […] There is no specific prevention for myocarditis, although vaccination against COVID reduces the risk of myocarditis from that cause. Contact your doctor if you have symptoms of myocarditis, particularly shortness of breath or chest pain.

• #1 Myocarditis – causes, symptoms & treatments – BHF

  https://www.bhf.org.uk/informationsupport/conditions/myocarditis

  If you think you have symptoms of myocarditis, contact your doctor straightaway, or call NHS 111. Getting diagnosed and treated early can help you feel better and lower your risk of long-term complications from myocarditis. […] Myocarditis can develop suddenly (acutely), can be recurring or it can be long-lasting (chronic). Most people will recover without any lasting effects. But in rare cases, if the inflammation is severe, myocarditis can scar the heart muscle. This damage means the heart has to work harder to pump blood and oxygen around the body. In some cases, this can result in the heart muscle becoming bigger, and over time, weaker. […] Sometimes, myocarditis can affect the heart’s electrical system, leading to an irregular heart beat (arrythmia).

• #1 Myocarditis Risk Associated with COVID-19 Infection

  https://www.beaumont.org/health-wellness/blogs/myocarditis-risk-associated-with-covid-19-infection

  Myocarditis is an inflammation of your heart muscle and it can reduce your hearts ability to pump blood. This inflammation can also cause your heart to beat rapidly or irregularly, causing arrhythmias. […] The symptoms of myocarditis can include: a fast or irregular heartbeat, shortness of breath even when at rest, chest pain, other symptoms of a viral infection (body aches, pains, fever, sore throat), feeling tired, fluid buildup in your legs, ankles and feet, fainting. […] If you think you have myocarditis, its important to get care right away to help prevent long-term heart damage. […] Most people who develop myocarditis after getting a COVID-19 vaccine have a mild case that resolves quickly without any lasting side effects. In fact, about 95% of myocarditis cases in adults were found to be mild and resolved within a reasonable amount of time. […] Research is making a clear point. You have a much greater chance of developing heart problems, including myocarditis, if you contract COVID-19 compared with getting a COVID-19 vaccine.

• #1 Understanding Myocarditis – Myocarditis Foundation

  https://www.myocarditisfoundation.org/about-myocarditis/

  After treatment, many patients live long, full lives free from the effects of myocarditis. For others, however, ongoing cardiovascular medication or even a heart transplant may be needed. Overall, dilated cardiomyopathy which can result from myocarditis accounts for up to 45 percent of heart transplants in the U.S. today. […] Yes, myocarditis can recur, and in some cases can lead to a chronically enlarged heart (called dilated cardiomyopathy). There is no known way to prevent recurrence of myocarditis. However, the risk of recurrence is low (probably about 10 to 15 percent).

• #1 Myocarditis: Symptoms and Causes

  https://my.clevelandclinic.org/health/diseases/22129-myocarditis

  If you have a mild case, it may go away on its own. If not, your provider can order medicines for you. […] Your prognosis with myocarditis depends on how severe your symptoms are and how inflamed your heart is. Many people can live for years without problems after treatment for myocarditis. Others may need to keep taking medications. There’s also a small risk that you’ll develop myocarditis again. […] For some people, myocarditis can lead to serious complications like dilated cardiomyopathy, a condition where the heart becomes enlarged and weak. This can eventually lead to heart failure, and they may need a heart transplant. Myocarditis is also linked to nearly 20% of sudden deaths in young people. While many people recover, it can still be life-threatening. […] About 50% to 80% of those with viral myocarditis survive five years or more after diagnosis. Many people, especially younger people, recover fully and go on to live healthy, active lives.

• #1 What is Myocarditis? Symptoms, Causes and Treatment

  https://en.taylanakgun.com/myocarditis-heart-muscle-inflammation

  Untreated myocarditis can lead to permanent heart muscle damage and heart failure. Some patients may develop serious rhythm disorders, which can increase the risk of sudden cardiac death. Chronic myocarditis can progress to dilated cardiomyopathy and may require heart transplantation. Therefore, early diagnosis and treatment are very important. […] The course of myocarditis varies from patient to patient. Mild cases usually heal completely within a few weeks without leaving permanent damage. However, in some patients, the recovery process may be longer, and it may take months for heart functions to return to normal. Approximately 20-30% of patients may develop chronic myocarditis and risk of heart failure may emerge. Regular follow-up and check-ups are important for determining the course of the disease and early detection of possible complications.

• #1 Myocarditis: Background, Etiology, Pathophysiology

  https://emedicine.medscape.com/article/156330-overview

  Myocarditis usually manifests in an otherwise healthy person and can result in rapidly progressive (and fatal) heart failure (HF) and arrhythmia. […] Patients with fulminant myocarditis have a high mortality risk when the condition is not recognized and treated early; death occurs from cardiogenic shock, fatal ventricular tachyarrhythmias, or bradycardia. […] Most patients with mild symptoms recover completely without any residual cardiac dysfunction, although one third subsequently develop dilated cardiomyopathy. […] Eosinophilic myocarditis, left undiagnosed, can result in progressive, irreversible, and fatal myocardial damage. […] The mortality in newborn infants is high (75%) in some reports. Older infants and children have a better prognosis, with mortality ranging from 10% to 25% in clinically recognizable cases. […] In a study of patients with giant cell myocarditis, 89% of patients either died or underwent cardiac transplantation, with a median survival from symptom onset to death or transplantation of only 5.5 months.

• #1 Myocarditis – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/myocarditis/diagnosis-treatment/drc-20352544

  Early diagnosis of myocarditis is important to preventing long-term heart damage. […] Myocarditis treatment focuses on the cause and the symptoms, such as heart failure. […] Some people with myocarditis take medicines for just a few months and then get better completely. Others may have long-term heart damage that needs lifelong medicine. It’s important to have regular health checkups after myocarditis to check for possible complications. […] Rest and reducing the strain on the heart are important parts of myocarditis recovery. […] If you have symptoms of myocarditis, make an appointment for a health checkup. If symptoms are severe, you may first be seen in an emergency setting.

• #2 Myocarditis: Symptoms and Causes

  https://my.clevelandclinic.org/health/diseases/22129-myocarditis

  Myocarditis is inflammation of your heart muscle (myocardium). This can weaken your heart muscle, making it more difficult for your heart to pump. This rare condition can affect people quickly or slowly over time. […] People with myocarditis often feel fatigued, short of breath, chest pain or the sensation of their heart racing (palpitations). They may feel these symptoms gradually over time, or their symptoms may happen very quickly. People with myocarditis in more advanced stages may show symptoms of heart failure. […] You may have no symptoms, few symptoms or many symptoms, and they may be more severe in some people than in others. Myocarditis symptoms include: Shortness of breath. Tiredness. Fever. Chest pain. Heart palpitations. Pain in your abdomen. Lightheadedness. Abnormal heart rhythm. Fainting. No appetite. Feeling weak. Swollen legs or feet. Being unable to exercise.

• #2 Myocarditis: Symptoms & Treatment | Mass General Brigham

  https://www.massgeneralbrigham.org/en/patient-care/services-and-specialties/heart/conditions/myocarditis

  Myocarditis is a condition where the heart muscle becomes inflamed. Specifically, this is an infection of the myocardium, which is the middle layer of the heart wall. The leading cause of myocarditis is an infection, although the exact cause is not always known. It is a rare heart condition that can affect someone slowly over time or come on quickly. […] Symptoms of myocarditis are not always obvious. It’s possible to have the condition and not have any symptoms. Those who do have symptoms of myocarditis often compare the feeling to that of a viral infection or the flu, including body aches, sore throat, joint pain, fever, headaches, or diarrhea. […] Other myocarditis symptoms include: A rapid and irregular heartbeat known as an arrhythmia, or heart fluttering, Chest pain and shortness of breath (during physical activity or at rest), Fatigue, Swelling of the legs, ankles, and feet, Lightheadedness.

• #2 Myocarditis: Signs and Symptoms

  https://www.health.com/myocarditis-symptoms-8599090

  Myocarditis is the inflammation of the heart musclealso known as the myocardium. Symptoms of myocarditis vary widely, depending on the extent and severity of inflammation that you’re experiencing and the underlying cause of your condition. It’s worth noting that not everyone with myocarditis develops symptoms. When symptoms do occur, they may include fatigue, shortness of breath, chest pain, heart palpitations, and lightheadedness that can range from mild to severe. […] Symptoms of myocarditis can develop suddenly or gradually over time, depending on the cause. For example, symptoms of myocarditis that develop after a viral infection generally begin within a few days or weeks following a viral infection (e.g., COVID-19 or influenza). Many people also report flu-like symptoms like fever, nausea, vomiting, cough, and fatigue before developing myocarditis symptoms.

• #2 Myocarditis | Diagnosis & Disease Information – The Cardiology Advisor

  https://www.thecardiologyadvisor.com/ddi/myocarditis/

  Myocarditis is characterized by inflammation of the myocardium, which might be caused by a viral infection, another medical condition, or certain medications. The most common symptoms are nonspecific and include dyspnea, chest pain, and arrhythmias. […] Common symptoms of myocarditis include the following: Chest pain; Dyspnea; Arrhythmias; Exercise intolerance; Fatigue; and Fever. […] Patients might report a history of a viral prodrome, including fever and rash, arthralgias, myalgias, fatigue, and respiratory or gastrointestinal symptoms. These symptoms typically are seen days to weeks before myocarditis onset. […] The prognosis for myocarditis depends on its etiology and individual patient characteristics. Many patients live for years without complications after myocarditis treatment, but others require long-term management. Recurrence is possible but uncommon (10% to 15%).

• #2 Understanding Myocarditis – Myocarditis Foundation

  https://www.myocarditisfoundation.org/about-myocarditis/

  Myocarditis is classified as a rare disease but is estimated to affect thousands of adults and children in the U.S. and around the world each year. 1.3 million cases of myocarditis were diagnosed in 2021. […] One of the greatest challenges to the diagnosis and treatment of myocarditis is the lack of specific symptoms of myocarditis. In many cases, individuals experience no symptoms of myocarditis at all. When they are present, symptoms may point to the viral infection itself or suggest other cardiac problems such as a heart attack. Common symptoms of myocarditis can include, but are not limited to: Shortness of breath, especially after exercise or when lying down, Fatigue, Heart palpitations, Chest pain or pressure, Lightheadedness, Swelling in the hands, legs, ankles and feet, A sudden loss of consciousness.

• #2 Myocarditis – causes, symptoms & treatments – BHF

  https://www.bhf.org.uk/informationsupport/conditions/myocarditis

  Myocarditis is inflammation of the heart muscle, usually following a virus. Some people have no symptoms, but it can cause chest pains, palpitations and shortness of breath. […] People with myocarditis can get chest pain and feel breathless. Its not unusual for these symptoms to start up to two weeks after being unwell with an infection. Common symptoms of myocarditis include: chest pain or discomfort, or a feeling of tightness in the chest, shortness of breath, either at rest or when active, or in certain positions, such as lying down, unusual tiredness, palpitations (like your heart is fluttering, racing, or pounding), an irregular heartbeat, feeling light-headed or fainting, recent flu-like symptoms such as high temperature, headaches, body aches, joint pain, or sore throat, rarely, swelling in hands, legs, ankles or feet.

• #2 Myocarditis | American Heart Association

  https://www.heart.org/en/health-topics/myocarditis

  Myocarditis can weaken the heart and its electrical system. As a result, the heart’s ability to pump blood is reduced. […] The condition may be acute and resolve quickly, or it may be subacute or chronic, lasting up to three months. In severe cases, myocarditis may lead to heart failure or death. […] People with myocarditis don’t always have symptoms. Others have mild or severe signs, such as: Fatigue or exercise intolerance, Shortness of breath, Fever, Chest pain, Hard, rapid or irregular heartbeat, Lightheadedness or fainting, Flu-like symptoms including headache, body ache, joint pain or sore throat. […] Some cases of myocarditis can feel like a heart attack. Seek emergency medical help right away for unexplained chest pain or shortness of breath.

• #2 Myocarditis – Augusta HealthSearchClose SearchSearch IconSearch IconClose Search IconMobile Menu IconMobile Menu Close IconInstagramFacebookTwitterYoutube

  https://www.augustahealth.com/disease/myocarditis/

  Sometimes, myocarditis symptoms may be similar to a heart attack. If you are having unexplained chest pain and shortness of breath, seek emergency medical help. […] When children develop myocarditis, they might have signs and symptoms including: Fever, Fainting, Breathing difficulties, Rapid breathing, Chest pain, Rapid or irregular heart rhythms (arrhythmias). […] Contact your doctor if you have symptoms of myocarditis, particularly chest pain and shortness of breath. Symptoms of myocarditis can resemble a heart attack. Get emergency medical help if you have unexplained chest pain and shortness of breath. […] If you’ve had an infection, watch for the symptoms of myocarditis and let your doctor know if they occur. If you have severe symptoms, go to the emergency room or call for emergency medical help.

• #2 Myocarditis | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/myocarditis

  Some people with early myocarditis don’t have symptoms. Others have mild symptoms. Common myocarditis symptoms include: Chest pain. Fatigue. Swelling of the legs, ankles and feet. Rapid or irregular heartbeats, called arrhythmias. Shortness of breath, at rest or during activity. Lightheadedness or feeling like you might faint. Flu-like symptoms such as headache, body aches, joint pain, fever or sore throat. […] Sometimes, myocarditis symptoms are like symptoms of a heart attack. If you are having unexplained chest pain and shortness of breath, seek emergency medical help. […] When children get myocarditis, symptoms may include: Difficulty breathing. Rapid breathing. Chest pain. Rapid or irregular heartbeats, called arrhythmias. Fainting. Fever. […] Contact a healthcare professional if you have symptoms of myocarditis. Symptoms of myocarditis can seem like a heart attack. Get emergency medical help if you have unexplained chest pain, rapid heartbeats or shortness of breath. […] If you have severe symptoms, go to the emergency room or call for emergency medical help.

• #2 Myocarditis: Symptoms and Treatment for Inflammation of the Heart

  https://www.healthline.com/health/heart-disease/myocarditis

  Myocarditis refers to inflammation of your heart muscle. When the myocardium becomes inflamed, its ability to pump blood becomes less effective. This causes problems like an abnormal heartbeat, chest pain, and trouble breathing. In extreme cases, it can cause blood clots leading to a heart attack or stroke, damage to the heart, or death. […] If symptoms do develop, they often include: chest pain, heart palpitations, shortness of breath, both at rest and with exertion, fatigue, weakness, swelling in your legs or feet, lightheadedness or fainting. […] Myocarditis can be either acute or chronic. Acute refers to a condition that comes on suddenly. Chronic conditions are those that are persistent or long lasting. Acute myocarditis is typically what we think of when we talk about myocarditis. Usually, a short amount of time passes, often less than a month, between when your symptoms come on and when you receive a diagnosis. Most cases of acute myocarditis resolve after you receive treatment.

• #2 Myocarditis – Symptoms, diagnosis and treatment | BMJ Best Practice US

  https://bestpractice.bmj.com/topics/en-us/244

  Myocarditis describes a heterogeneous group of disorders characterized by myocardial inflammation in the absence of predominant acute or chronic ischemia. […] May present as fulminant, acute, or chronic myocarditis. […] Most cases of viral myocarditis are asymptomatic and spontaneously resolve. Patients who present with mild to moderate heart failure tend to improve or recover but may progress to chronic severe heart failure. […] Surprisingly, patients who present with fulminant, acutely decompensated heart failure almost universally recover back to baseline function, if death is prevented through management in the acute phase.

• #2 Viral Myocarditis – MD Searchlight

  https://mdsearchlight.com/heart-health/viral-myocarditis/

  Patients with a severe form of myocarditis called fulminant myocarditis can have a favorable long-term prognosis if the disease is caught and treated early with supportive care. One study demonstrated a survival rate of 93% at 11 years in such cases. For those with less severe disease, the prognosis was still generally good, with survival rates ranging from 56% to 83% over a span of 3 to 5 years.

• #2 Myocarditis: Signs and Symptoms

  https://www.health.com/myocarditis-symptoms-8599090

  This condition can be acute (short-term) and resolve quickly, subacute (lasting weeks or months), or chronic (lasting a few months or longer). In some cases, inflammation causes heart damage, interfering with your hearts electrical system and reducing its ability to pump blood. This can lead to heart failure and other serious heart conditions, so knowing the warning signs is essential. […] Symptoms of myocarditis vary from person to person. Some people experience mild symptoms, while others may have more severe symptoms that require immediate treatment. The most common symptoms of myocarditis include: Chest pain: A sensation of tightness, squeezing, or pressure in the chest that may feel like a heart attack. Chest pain may worsen with activity (e.g., exercise) or while lying down. […] Shortness of breath: Difficulty catching your breath or feeling like you cant get enough air is especially common after exercise or when lying down.

• #2 Myocarditis – Heart and Blood Vessel Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/heart-and-blood-vessel-disorders/pericardial-disease-and-myocarditis/myocarditis

  Symptoms can vary and can include fatigue, shortness of breath, swelling (edema), awareness of heart beats (palpitations), and sudden death. […] People may have only a few symptoms or have severe and rapidly progressing heart failure and severe heart rhythm abnormalities. Symptoms depend on the cause of the myocarditis as well as the extent and severity of inflammation. […] Heart failure symptoms may include fatigue, shortness of breath, and swelling (edema). […] Some people may have an awareness of heartbeats (palpitations) or fainting. In some people, the first symptom is a sudden, severe abnormal heart rhythm. […] When inflammation of the pericardium occurs along with myocarditis, people may have chest pain. Dull or sharp pain may spread to the neck, back, or shoulders. Pain ranges from mild to severe. […] Myocarditis can be acute, subacute or chronic. In some cases, myocarditis can lead to dilated cardiomyopathy.

• #2 Myocarditis: Causes, Symptoms, Treatment & Tests You May Need

  https://www.webmd.com/heart-disease/myocarditis

  Older children also get myocarditis. Sometimes, symptoms appear after an illness, but this isnt always the case. Older children might have: Pale skin, Rapid or difficult breathing, Fever, Cough, Cold hands or feet, Tiredness, Chest pain, Fainting. […] Symptoms of myocarditis include heart palpitations, weakness, chest pain, fever, and shortness of breath. These symptoms can range in severity. Some people dont have any symptoms. […] Early or mild myocarditis might not cause any symptoms. When it does, it could feel like chest pain, tiredness, irregular heartbeat, or shortness of breath.

• #2 What is Myocarditis and How Does it Affect the Heart? – Lompoc Valley Medical Center

  https://www.lompocvmc.com/blogs/2022/february/what-is-myocarditis-and-how-does-it-affect-the-h/

  When symptoms of myocarditis occur in children, they may be harder to immediately detect. Infants, who are vulnerable to the viruses that cause myocarditis because they have immature immune systems, may have pale skin, tiredness, irritability, or changes in their eating or breathing patterns. […] Usually, myocarditis goes away on its own after a few weeks or months. However, sometimes symptoms persist for a longer time (this is a condition of chronic myocarditis) or recur. […] Rarely, myocarditis can cause a fatal heart rhythm or severe heart failure event that leads to death. […] The majority of people who contract myocarditis are younger, and they are more likely to be male. Usually, myocarditis resolves on its own with rest and careful monitoring, however, sometimes people require more intensive support for their hearts. Rarely, it can be fatal.

• #2 Clinical Considerations: Myocarditis after COVID-19 Vaccines | CDC

  https://www.cdc.gov/vaccines/covid-19/clinical-considerations/myocarditis.html

  Myocarditis is inflammation of the heart muscle and pericarditis is inflammation of the lining outside the heart; myopericarditis is when both myocarditis and pericarditis occur at the same time. […] The severity of myocarditis and pericarditis cases can vary; most patients with myocarditis after mRNA COVID-19 vaccination have experienced resolution of symptoms by hospital discharge. […] Consider myocarditis and pericarditis in persons with acute chest pain, shortness of breath, or palpitations, particularly in adolescents and young adults. Younger children who have myocarditis or pericarditis may have non-specific symptoms such as irritability, vomiting, poor feeding, tachypnea (fast breathing), or lethargy. […] If myocarditis or pericarditis is diagnosed after a COVID-19 vaccine dose, before giving additional doses, please refer to the latest guidance in the COVID-19 and myocarditis and pericarditis section of the Interim Clinical Considerations for Use of COVID-19 Vaccines web page.

• #2 Myocarditis | Children’s Hospital of Philadelphia

  https://www.chop.edu/conditions-diseases/myocarditis-in-children

  Myocarditis is an inflammation of the heart muscle. […] Myocarditis can interfere with heart function, and the heart muscle can be permanently damaged. […] Symptoms tend to be more severe in infants, and can include: Pale skin, Fatigue, Irritability, Difficulty breathing and eating. […] In older children, symptoms can include: Fever, Rapid or labored breathing, Cough, Pale, cool hands and feet, Decreased appetite, Chest pain or heart palpitations, Fatigue. […] Some children will have ongoing issues. Some may develop chronic myocarditis, where mild inflammation and heart damage continue over time, affecting heart function. Others may have reduced heart function due to scarring from the original inflammation, even after the inflammation has stopped.

• #2 Myocarditis: Symptoms and Treatment for Inflammation of the Heart

  https://www.healthline.com/health/heart-disease/myocarditis

  Myocarditis can cause significant damage to the heart. Because of this, a variety of complications can result, such as: arrhythmia, a condition in which your heartbeat can be too fast, too slow, or irregular; cardiomyopathy, a condition in which your heart muscle weakens and cannot pump blood effectively; heart failure, where your heart has a hard time pumping enough blood to the organs and tissues of your body; heart attack, in which the blood supply to a part of your heart is cut off, causing heart tissue to die. […] Myocarditis in children shares many of the characteristics of myocarditis in adults. However, most cases of myocarditis in children are acute rather than chronic. According to the American Heart Association, the most common symptoms reported in children are: fatigue, shortness of breath, abdominal pain, fever.

• #2 Myocarditis: Symptoms and Causes

  https://my.clevelandclinic.org/health/diseases/22129-myocarditis

  If you have a mild case, it may go away on its own. If not, your provider can order medicines for you. […] Your prognosis with myocarditis depends on how severe your symptoms are and how inflamed your heart is. Many people can live for years without problems after treatment for myocarditis. Others may need to keep taking medications. There’s also a small risk that you’ll develop myocarditis again. […] For some people, myocarditis can lead to serious complications like dilated cardiomyopathy, a condition where the heart becomes enlarged and weak. This can eventually lead to heart failure, and they may need a heart transplant. Myocarditis is also linked to nearly 20% of sudden deaths in young people. While many people recover, it can still be life-threatening. […] About 50% to 80% of those with viral myocarditis survive five years or more after diagnosis. Many people, especially younger people, recover fully and go on to live healthy, active lives.

• #2 Myocarditis: Symptoms & Treatment | Mass General Brigham

  https://www.massgeneralbrigham.org/en/patient-care/services-and-specialties/heart/conditions/myocarditis

  Myocarditis in children is possible too. The signs of myocarditis in children may be similar to that of adults, but they could also experience fainting or rapid breathing. […] In cases of mild myocarditis, medication, rest, and recovery may be all that is needed for it to go away on its own. Antibiotics are often prescribed if an infection is the suspected cause of myocarditis. Most cases improve with this standard medical therapy and need no further intervention for the heart to return to its normal function and rhythm. […] Myocarditis may go away on its own with only medication needed for treatment. In rare cases, myocarditis can lead to heart failure, stroke, or cardiac shock, which are life-threatening emergencies.

• #2 Myocarditis: Causes, Symptoms, and Treatment

  https://patient.info/heart-health/myocarditis-leaflet

  Myocarditis is an inflammation of the heart muscle. Depending on the cause and severity, symptoms and possible problems can range from no symptoms at all, to life-threatening heart failure. Many people with myocarditis recover completely but it can cause serious problems and even death in some cases. […] The symptoms depend on the cause and severity of the inflammation. Many people with viral myocarditis do not have any heart-related symptoms. If they do develop, the symptoms of myocarditis include: Chest pain. Raised temperature (fever). A fast heartbeat – faster than usual for a normal high temperature. An irregular heartbeat. Tiredness. Shortness of breath. […] In most cases of viral myocarditis, the illness goes away on its own and there are no complications. Symptoms may last only a few days or weeks. However, some types of viral infection are more serious and can cause more severe or persistent inflammation and complications.

• #2 Myopericarditis: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/24579-myopericarditis

  Myopericarditis symptoms include: […] Chest pain that can be sharp and get worse when you breathe in or cough. Chest pain may keep going without a break or get better when you lean forward. […] The prognosis for myopericarditis is very good. Most people dont have complications or long-term effects from the condition. After treatment, myopericarditis usually doesnt return. […] You may be taking ibuprofen for days or several weeks. It can take four to six weeks to recover from myopericarditis. You should avoid exerting yourself during that time.

• #2 Heart Inflammation – Myocarditis | NHLBI, NIH

  https://www.nhlbi.nih.gov/health/heart-inflammation/myocarditis

  Myocarditis can lead to heart failure, rhythm disturbances, or rarely cardiogenic shock (a condition that occurs when your heart suddenly cannot pump enough blood to your tissues and organs). […] Symptoms can be very different from person to person depending on the cause of myocarditis but include: Chest pain, Fatigue, Trouble breathing, Abnormal heart rhythms, called arrhythmias, Fever, Exercise intolerance (no longer being able to exercise), Rash.

• #2 Myocarditis Types, Symptoms and Prevention

  https://larkinhealth.com/en/treatments-services/cardiology/myocarditis/

  Occasionally, symptoms of myocarditis may feel like a heart attack. Hence, if you experience unexplained chest pain and shortness of breath, do not delay seeking emergency medical help. […] If left untreated, myocarditis can severely damage the heart muscle, causing difficulty pumping blood. Severe myocarditis-related heart failure is treated with a ventricular assist device or, sometimes, a heart transplant. […] Most cases of myocarditis can be resolved on their own. Other cases take several months after the patient receives treatment. The condition may even recur, causing symptoms of inflammation, including shortness of breath, chest pain, etc.

• #2 Myocarditis – causes, symptoms & treatments – BHF

  https://www.bhf.org.uk/informationsupport/conditions/myocarditis

  If you think you have symptoms of myocarditis, contact your doctor straightaway, or call NHS 111. Getting diagnosed and treated early can help you feel better and lower your risk of long-term complications from myocarditis. […] Myocarditis can develop suddenly (acutely), can be recurring or it can be long-lasting (chronic). Most people will recover without any lasting effects. But in rare cases, if the inflammation is severe, myocarditis can scar the heart muscle. This damage means the heart has to work harder to pump blood and oxygen around the body. In some cases, this can result in the heart muscle becoming bigger, and over time, weaker. […] Sometimes, myocarditis can affect the heart’s electrical system, leading to an irregular heart beat (arrythmia).

• #2 Myocarditis

  https://dzhk.de/en/cardiovascular-diseases/diseases/myocarditis

  Myocarditis, or inflammation of the heart muscle, can affect people of any age, even those in good health. The disease often progresses without typical symptoms, making it difficult for doctors to detect it. The first signs of myocarditis are usually noticed a few weeks after an infection. If the fatigue lasts longer than usual with an infection or if other symptoms occur, these are serious indications of myocarditis and should be clarified by a doctor. Some signs, such as shortness of breath or water retention in the legs (oedema), are similar to those of heart failure. A feeling of tightness in the chest or chest pain (angina pectoris), pronounced palpitations, heart palpitations (arrhythmias), dizziness or fainting can also indicate myocarditis. Life-threatening cardiac arrhythmias can occur at any stage of the disease and can lead to sudden cardiac death. An initially mild acute myocarditis can worsen or become chronic. Then there is a risk of permanent heart damage such as dilated cardiomyopathy with increasing cardiac insufficiency: the heart can no longer pump properly and patients feel weak and unable to perform. In patients who have heart failure and are younger than 40, myocarditis is the most common cause. Acute myocarditis can also lead to sudden cardiac death: Myocarditis is responsible for one in ten young people under 35 who die from sudden cardiac death. […] The inflammatory reaction initially helps to fight the virus. In the worst case, anti-inflammatory therapy may be started too early, even before the body has eliminated the virus.

• #2 Understanding Myocarditis – Myocarditis Foundation

  https://www.myocarditisfoundation.org/about-myocarditis/

  After treatment, many patients live long, full lives free from the effects of myocarditis. For others, however, ongoing cardiovascular medication or even a heart transplant may be needed. Overall, dilated cardiomyopathy which can result from myocarditis accounts for up to 45 percent of heart transplants in the U.S. today. […] Yes, myocarditis can recur, and in some cases can lead to a chronically enlarged heart (called dilated cardiomyopathy). There is no known way to prevent recurrence of myocarditis. However, the risk of recurrence is low (probably about 10 to 15 percent).

• #2 Myocarditis: Symptoms and Treatment for Inflammation of the Heart

  https://www.healthline.com/health/heart-disease/myocarditis

  The outlook for myocarditis diagnosis is generally positive. Many people with myocarditis will recover without any long-term negative effects on their heart. It’s important to be patient with your recovery process. In some cases, it can take a long time to fully recover from a bout of myocarditis up to 3 to 7 years.

• #2 Myocarditis: Background, Etiology, Pathophysiology

  https://emedicine.medscape.com/article/156330-overview

  Myocarditis usually manifests in an otherwise healthy person and can result in rapidly progressive (and fatal) heart failure (HF) and arrhythmia. […] Patients with fulminant myocarditis have a high mortality risk when the condition is not recognized and treated early; death occurs from cardiogenic shock, fatal ventricular tachyarrhythmias, or bradycardia. […] Most patients with mild symptoms recover completely without any residual cardiac dysfunction, although one third subsequently develop dilated cardiomyopathy. […] Eosinophilic myocarditis, left undiagnosed, can result in progressive, irreversible, and fatal myocardial damage. […] The mortality in newborn infants is high (75%) in some reports. Older infants and children have a better prognosis, with mortality ranging from 10% to 25% in clinically recognizable cases. […] In a study of patients with giant cell myocarditis, 89% of patients either died or underwent cardiac transplantation, with a median survival from symptom onset to death or transplantation of only 5.5 months.

• #2 Signs of Myocarditis: Symptoms and Treatments | Ada

  https://ada.com/conditions/myocarditis/

  If any symptoms are present and myocarditis is suspected, medical advice should be sought immediately. In some cases, myocarditis can cause serious complications, including heart failure, stroke and sudden death. […] In many cases, the prognosis is good, and myocarditis clears up on its own, without any complications or long-term health effects. However, sometimes the heart sustains damage, leaving a degree of heart failure that requires lifelong management. […] Myocarditis can be fatal. Death may occur if the condition worsens after diagnosis and becomes unresponsive to treatment. It may also occur suddenly where acute myocarditis has a rapid onset. […] In a small number of cases, myocarditis may persist and become chronic or long lasting. Chronic myocarditis is associated with dilated cardiomyopathy and may lead to heart failure and other serious complications.

• #2 Myocarditis – Latest Research – Victor Chang Cardiac Research Institute

  https://www.victorchang.edu.au/heart-disease/myocarditis

  Diagnosing myocarditis can be challenging because the majority of cases have no symptoms. But early diagnosis is important to try to prevent long-term damage to the heart. […] In mild cases, myocarditis can resolve on its own with rest. Moderate to severe cases of myocarditis require medication and, in some cases, the heart may require temporary support to pump enough blood. Full recovery can take several months, but following treatment many patients can lead a long, full life. […] While myocarditis can reoccur, the risk is low. In rare cases, myocarditis can lead to dilated cardiomyopathy (DCM), the most common cause of heart failure. […] There is no specific prevention for myocarditis, although vaccination against COVID reduces the risk of myocarditis from that cause. Contact your doctor if you have symptoms of myocarditis, particularly shortness of breath or chest pain.

• #2 Myocarditis: Causes, Symptoms, Treatment & Tests You May Need

  https://www.webmd.com/heart-disease/myocarditis

  Myocarditis often has no symptoms. In fact, most people recover and never even know they had it. […] If you do have symptoms, they may include: Shortness of breath, Abnormal heartbeat, which causes fainting in rare cases, Lightheadedness, A sharp or stabbing chest pain or pressure, which may spread to your neck and shoulders, Fatigue, Signs of infection, such as Fever, Muscle aches, Sore throat, Headache, Diarrhea, Painful joints, Swollen joints, legs, feet, or neck veins, Small amounts of urine, Loss of appetite, Weakness. […] Infants are at high risk for myocarditis because they are exposed to viruses during childbirth but dont have a fully developed immune system yet. They tend to have more severe symptoms, including: Pale skin, Difficulty eating, Weakness, Irritability, Breathing problems.

• #3 Myocarditis | American Heart Association

  https://www.heart.org/en/health-topics/myocarditis

  Myocarditis can weaken the heart and its electrical system. As a result, the heart’s ability to pump blood is reduced. […] The condition may be acute and resolve quickly, or it may be subacute or chronic, lasting up to three months. In severe cases, myocarditis may lead to heart failure or death. […] People with myocarditis don’t always have symptoms. Others have mild or severe signs, such as: Fatigue or exercise intolerance, Shortness of breath, Fever, Chest pain, Hard, rapid or irregular heartbeat, Lightheadedness or fainting, Flu-like symptoms including headache, body ache, joint pain or sore throat. […] Some cases of myocarditis can feel like a heart attack. Seek emergency medical help right away for unexplained chest pain or shortness of breath.

• #3 Myocarditis | Heart Condition – Heart Foundation NZ

  https://www.heartfoundation.org.nz/your-heart/heart-conditions/myocarditis

  Myocarditis symptoms include some or all of the following: chest pain […] a feeling of heaviness in the chest […] difficulty breathing some or all of the time […] a fast heartbeat/heart palpitations (a feeling like your heart is jumping around or skipping a beat) […] tiredness […] unable to carry out your usual daily activities […] swelling in your legs and or feet. Symptoms of myocarditis usually develop one to two weeks after a viral infection. After a COVID-19 vaccination, if symptoms were to appear its typically within a week, most often within the first five days.

• #3 Myocarditis: Causes, Symptoms, Treatment & Tests You May Need

  https://www.webmd.com/heart-disease/myocarditis

  Myocarditis often has no symptoms. In fact, most people recover and never even know they had it. […] If you do have symptoms, they may include: Shortness of breath, Abnormal heartbeat, which causes fainting in rare cases, Lightheadedness, A sharp or stabbing chest pain or pressure, which may spread to your neck and shoulders, Fatigue, Signs of infection, such as Fever, Muscle aches, Sore throat, Headache, Diarrhea, Painful joints, Swollen joints, legs, feet, or neck veins, Small amounts of urine, Loss of appetite, Weakness. […] Infants are at high risk for myocarditis because they are exposed to viruses during childbirth but dont have a fully developed immune system yet. They tend to have more severe symptoms, including: Pale skin, Difficulty eating, Weakness, Irritability, Breathing problems.

• #3 Understanding Myocarditis – Myocarditis Foundation

  https://www.myocarditisfoundation.org/about-myocarditis/

  Myocarditis is classified as a rare disease but is estimated to affect thousands of adults and children in the U.S. and around the world each year. 1.3 million cases of myocarditis were diagnosed in 2021. […] One of the greatest challenges to the diagnosis and treatment of myocarditis is the lack of specific symptoms of myocarditis. In many cases, individuals experience no symptoms of myocarditis at all. When they are present, symptoms may point to the viral infection itself or suggest other cardiac problems such as a heart attack. Common symptoms of myocarditis can include, but are not limited to: Shortness of breath, especially after exercise or when lying down, Fatigue, Heart palpitations, Chest pain or pressure, Lightheadedness, Swelling in the hands, legs, ankles and feet, A sudden loss of consciousness.

• #3 Myocarditis | The Harley Street

  https://www.harleystreet.sg/kb/about-heart-disease/myocarditis/

  1. Chest Pain: This is one of the hallmark symptoms of myocarditis. The chest pain is typically described as a sharp or dull ache and can range from mild discomfort to severe pain. It may feel like a pressure or tightness in the chest and is often mistaken for a heart attack. […] 2. Fatigue: Many individuals with myocarditis experience extreme tiredness or fatigue, which can be debilitating and persistent. This fatigue may not improve with rest. […] 3. Shortness of Breath: Difficulty breathing or shortness of breath, especially during physical activity or when lying flat, is a common symptom of myocarditis. Some individuals may experience breathlessness even at rest. […] 4. Palpitations: Irregular heart rhythms or palpitations are another common symptom. You may feel that your heart is racing, skipping beats, or fluttering.

• #3 Myocarditis Center | UCSF Cardiology

  https://ucsfhealthcardiology.ucsf.edu/patient-care/clinical-services/myocarditis-center

  Myocarditis can manifest as an acute, critical illness where the symptoms occur suddenly, can be severe and can result in hospitalization. Myocarditis can also be a chronic disease, occurring over months. The distinction between acute and chronic myocarditis lies in the timeframe of symptom onset, with acute cases emerging within a month. Fulminant myocarditis, a severe form of acute myocarditis, is characterized by sudden and intense onset, leading to rapid deterioration.

• #3 Myocarditis in Children | Symptoms, Causes, Treatment & Prognosis

  https://www.cincinnatichildrens.org/health/m/myocarditis

  Myocarditis is a condition where the muscular walls of the heart become inflamed. Myocarditis typically results in poor heart function. […] In most children, myocarditis is triggered by an infection, usually viral, involving the heart. […] Treatment for myocarditis is based on how badly the heart is affected. Many children have a complete recovery, but some may develop serious heart failure and require chronic care from a cardiologist. […] The symptoms of myocarditis may be subtle, making the diagnosis difficult, or the child may have obvious symptoms of heart failure. […] Children over 2 years of age may have fewer symptoms than newborns and infants who are usually more severely affected. […] Older children may have fewer symptoms. They may complain of a flu-like illness with of fatigue, malaise and fever.

• #3 Myocarditis – pediatric Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/diseases-conditions/myocarditis-pediatric

  Symptoms may be mild at first and hard to detect. Sometimes in newborns and infants, symptoms may appear suddenly. […] Symptoms may include: Anxiety, Failure to thrive or poor weight gain, Feeding difficulties, Fever and other symptoms of infection, Listlessness, Low urine output (a sign of decreasing kidney function), Pale, cool hands and feet (a sign of poor circulation), Rapid breathing, Rapid heart rate. […] Symptoms in children over age 2 may also include: Belly area pain and nausea, Chest pain, Cough, Fatigue, Shortness of breath, Swelling (edema) in the legs, feet, and face.

• #3 Myocarditis (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/myocarditis.html

  Symptoms of myocarditis can vary. Some people have no symptoms. […] Signs in children with the condition include: tiredness, fast breathing or trouble breathing, chest pain, heart palpitations (feeling of the heart fluttering), lightheadedness, passing out. […] Most children recover fully from myocarditis within a few months. Sometimes, it can take a few years for the heart to fully recover. […] Some kids have lasting heart damage, but this isn’t common. If it happens, it can lead to backup of blood in the heart and lungs, arrhythmias, or cardiomyopathy (a weak, enlarged heart). If the damage is very severe, the child may need a heart transplant.

• #3 Myocarditis – causes, symptoms & treatments – BHF

  https://www.bhf.org.uk/informationsupport/conditions/myocarditis

  If you think you have symptoms of myocarditis, contact your doctor straightaway, or call NHS 111. Getting diagnosed and treated early can help you feel better and lower your risk of long-term complications from myocarditis. […] Myocarditis can develop suddenly (acutely), can be recurring or it can be long-lasting (chronic). Most people will recover without any lasting effects. But in rare cases, if the inflammation is severe, myocarditis can scar the heart muscle. This damage means the heart has to work harder to pump blood and oxygen around the body. In some cases, this can result in the heart muscle becoming bigger, and over time, weaker. […] Sometimes, myocarditis can affect the heart’s electrical system, leading to an irregular heart beat (arrythmia).

• #3 Myocarditis: Causes, Symptoms and Treatment of Inflammation in the Heart | Brown University Health

  https://www.brownhealth.org/be-well/myocarditis-causes-symptoms-and-treatment-inflammation-heart

  Myocarditis occurs when the heart muscle becomes inflamed. […] Significant myocarditis can affect the hearts function. […] Signs and symptoms can include: chest pain, fever, fatigue, shortness of breath, palpitations or skipped beats, dizziness, syncope (passing out). […] Fortunately, symptoms of myocarditis typically resolve rapidly, within several days. Mild cases have no lasting effect on the heart muscle, and a full recovery is expected. In cases with more severe involvement of the heart tissue, poor heart function and abnormal heart rhythms (arrhythmias) can result and persist. […] Hospitalization, when necessary, ranges from several days to weeks, and should be followed by several months of exercise restriction after hospital discharge. This allows for complete myocardial healing prior to restarting exercise and athletics. Though complete recovery is most common, occasionally prolonged hospitalization with longstanding cardiac damage occurs, which can require advanced treatments.

• #3 Symptoms and Causes of Myocarditis

  https://www.verywellhealth.com/myocarditis-inflammatory-disease-1746163

  Occasionally myocarditis overwhelms the heart and produces rapid, severe, and irreversible heart failure. […] Heart arrhythmias can occur during acute myocarditis. These arrhythmias can be of almost any type, including both the bradycardias (slow heart rhythms) and tachycardias (rapid heart rhythms), such as atrial fibrillation and ventricular tachycardia. These arrhythmias usually disappear once the acute myocarditis resolves. […] With aggressive treatment, many people with myocarditis will recover completely. In some people, however, the recovery is not complete, and some degree of cardiac damage may be permanent. In addition, inflammation may smolder along for months or years, causing gradual worsening of cardiac function. […] In most cases, myocarditis is a relatively mild and self-limited heart problem. But in some people, myocarditis can lead to significant heart failure, and it can do so either acutely or more gradually. With an accurate diagnosis, myocarditis can be treated to avoid serious complications.

• #3 Types of Myocarditis | Myocarditis Foundation

  https://www.myocarditisfoundation.org/research-and-grants/faqs/types-of-myocarditis/

  This type can cause rapid heart failure, ventricular arrythmias, and is frequently life-threatening without prompt treatment. […] Myocarditis can cause arrhythmias caused by defects in the conduction system of the heart. When the conduction (electrical) system in the heart experiences “blocks”, it is unable to coordinate pumping blood adequately. Loss of blood perfusion to the brain can result in “passing out”.

• #3 Myocarditis and related complications of SARS-CoV-2 infection

  https://www1.racgp.org.au/ajgp/2022/september/myocarditis-and-related-complications

  Myocarditis and pericarditis need to be considered as a differential, especially in all adolescents or young adults presenting with acute chest pain, shortness of breath or palpitations. […] Cardiac manifestation of SARS-CoV-2 infection is associated with a wide range of presentations from asymptomatic biomarker elevation to serious ventricular or supraventricular arrhythmias, left ventricular dysfunction and heart failure. […] Myocardial injury, defined as elevated high-sensitivity cardiac troponin (hs-cTn), is commonly seen in patients hospitalised with COVID-19 and is associated with an adverse prognosis. […] The prognosis of myocarditis varies widely by cause. Patients who recover may later develop dilated cardiomyopathy and heart failure. In up to 30% of cases, biopsy-proven myocarditis can progress to dilated cardiomyopathy and is associated with poor prognosis.

• #3 Myocarditis: Background, Etiology, Pathophysiology

  https://emedicine.medscape.com/article/156330-overview

  Myocarditis usually manifests in an otherwise healthy person and can result in rapidly progressive (and fatal) heart failure (HF) and arrhythmia. […] Patients with fulminant myocarditis have a high mortality risk when the condition is not recognized and treated early; death occurs from cardiogenic shock, fatal ventricular tachyarrhythmias, or bradycardia. […] Most patients with mild symptoms recover completely without any residual cardiac dysfunction, although one third subsequently develop dilated cardiomyopathy. […] Eosinophilic myocarditis, left undiagnosed, can result in progressive, irreversible, and fatal myocardial damage. […] The mortality in newborn infants is high (75%) in some reports. Older infants and children have a better prognosis, with mortality ranging from 10% to 25% in clinically recognizable cases. […] In a study of patients with giant cell myocarditis, 89% of patients either died or underwent cardiac transplantation, with a median survival from symptom onset to death or transplantation of only 5.5 months.

• #3 Myocarditis: Causes, Symptoms, and Treatment

  https://patient.info/heart-health/myocarditis-leaflet

  Complications are more likely with the more uncommon causes of myocarditis. Sometimes the inflammation clears but the heart is left with some permanent damage. You may be left with a degree of heart failure which may require long-term medication. […] In some cases, the inflammation and heart damage are so severe that the only treatment option is a heart transplant. Myocarditis is fatal in some cases. In some cases death occurs some time after the diagnosis is made if the condition becomes worse and unresponsive to treatment. Also, some cases of sudden death in a previously healthy person are due to an acute myocarditis that develops rapidly.

• #3 Myocarditis | Children’s Hospital of Philadelphia

  https://www.chop.edu/conditions-diseases/myocarditis-in-children

  Myocarditis is an inflammation of the heart muscle. […] Myocarditis can interfere with heart function, and the heart muscle can be permanently damaged. […] Symptoms tend to be more severe in infants, and can include: Pale skin, Fatigue, Irritability, Difficulty breathing and eating. […] In older children, symptoms can include: Fever, Rapid or labored breathing, Cough, Pale, cool hands and feet, Decreased appetite, Chest pain or heart palpitations, Fatigue. […] Some children will have ongoing issues. Some may develop chronic myocarditis, where mild inflammation and heart damage continue over time, affecting heart function. Others may have reduced heart function due to scarring from the original inflammation, even after the inflammation has stopped.

• #3 Myocarditis: Signs and Symptoms

  https://www.health.com/myocarditis-symptoms-8599090

  Some myocarditis symptoms are life-threatening and require emergency medical care. Call 911 or go to the hospital immediately if you experience any of the following symptoms: Severe chest pain, Difficulty breathing, Cold, pale skin, Rapid or abnormally slow heartbeat, Fainting, Confusion or agitation, Decreased urination (peeing less frequently or in abnormally small amounts). […] Myocarditis is the inflammation of the heart muscle. While some people may develop no symptoms, others may experience chest pain, fatigue, shortness of breath, and heart palpitations. Symptoms of myocarditis can develop suddenly or gradually. See a healthcare provider if you experience any myocarditis symptoms, even if they are mild. While most people recover with no ongoing health problems, myocarditis can sometimes be life-threatening and requires medical attention and treatment to prevent complications.

• #4 Myocarditis | American Heart Association

  https://www.heart.org/en/health-topics/myocarditis

  Myocarditis can weaken the heart and its electrical system. As a result, the heart’s ability to pump blood is reduced. […] The condition may be acute and resolve quickly, or it may be subacute or chronic, lasting up to three months. In severe cases, myocarditis may lead to heart failure or death. […] People with myocarditis don’t always have symptoms. Others have mild or severe signs, such as: Fatigue or exercise intolerance, Shortness of breath, Fever, Chest pain, Hard, rapid or irregular heartbeat, Lightheadedness or fainting, Flu-like symptoms including headache, body ache, joint pain or sore throat. […] Some cases of myocarditis can feel like a heart attack. Seek emergency medical help right away for unexplained chest pain or shortness of breath.

• #4 Myocarditis | The Harley Street

  https://www.harleystreet.sg/kb/about-heart-disease/myocarditis/

  5. Swelling (Edema): Fluid retention can lead to swelling, typically in the legs, ankles, feet, and sometimes in the abdomen. This swelling is often due to the heart’s reduced ability to pump blood effectively. […] 6. Flu-like Symptoms: Myocarditis can initially present with flu-like symptoms such as fever, muscle aches, joint pain, and fatigue. These symptoms can be misleading and may delay diagnosis. […] 7. Weakness: A feeling of weakness or malaise is often reported by individuals with myocarditis. This weakness can be severe and interfere with daily activities. […] 8. Rapid Breathing: Myocarditis can lead to an increased respiratory rate, especially during physical exertion. […] 9. Dizziness or Fainting (Syncope): In some cases, individuals with myocarditis may experience dizziness or fainting spells due to irregular heart rhythms or reduced blood flow to the brain.

• #5 Myocarditis – Wikipedia

  https://en.wikipedia.org/wiki/Myocarditis

  Myocarditis is inflammation of the cardiac muscle. Myocarditis can progress to inflammatory cardiomyopathy when there is associated ventricular remodeling and cardiac dysfunction due to chronic inflammation. Symptoms can include shortness of breath, chest pain, decreased ability to exercise, and an irregular heartbeat. The duration of problems can vary from hours to months. Complications may include heart failure due to dilated cardiomyopathy or cardiac arrest. […] The signs and symptoms associated with myocarditis are varied, and relate either to the actual inflammation of the myocardium or to the weakness and dysfunction of the heart muscle that is secondary to the inflammation. While myocarditis may develop over periods ranging from hours to months, patients typically present with signs and symptoms that resemble heart failure, including the following: chest pain, fever, shortness of breath, dull heart sounds, palpitations, abnormal heart rhythm, dizziness or fainting, and damage to heart cells.

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