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Heart valve disease occurs if one or more of your heart valves don't work well. The heart has four valves—the tricuspid, pulmonary, mitral, and aortic valves—that make sure blood flows in the right direction through your heart’s four chambers and to the rest of your body.

Age, race, gender, certain medical conditions—high blood pressure, diabetes, brain aneurysms, and heart diseases—smoking, and family history can raise your risk for a stroke.

The signs, symptoms, and complications of vasculitis vary depending on which type of vasculitis you have, the organs involved, and the severity of the condition. Some people may have few signs and symptoms. Other people may become very sick.

Ventricular fibrillation, a type of arrhythmia, causes most sudden cardiac arrests. Other problems with the heart's electrical system, including diseases or conditions that can cause the electrical problems—such as coronary heart disease, physical stress, certain inherited disorders, and structural changes in the heart—also can lead to sudden cardiac arrest.

La enfermedad coronaria es una enfermedad en la cual una sustancia cerosa llamada placa se acumula dentro de las arterias coronarias a través de muchos años. Estas arterias suministran sangre rica en oxígeno al músculo cardíaco.

If you have a known family history of Marfan syndrome or physical features of the condition, your doctor may recommend screening to find the condition early. Relatives of people who have Marfan syndrome may also want to have genetic screening. There is no way to prevent Marfan syndrome.

Treatments for peripheral artery disease include lifestyle changes, anti-clotting medicines, statins to control cholesterol, and medicines to treat high blood pressure. When peripheral artery disease is advanced or does not respond to lifestyle changes and medicines, your doctor may recommend surgery or procedures such as bypass grafting, angioplasty and stent placement, and atherectomy.

Treatments for carotid artery disease may include heart-healthy lifestyle changes, medicines, and medical procedures such as carotid endarterectomy and carotid artery angioplasty and stenting.

La adopción de hábitos saludables en el estilo de vida, el uso correcto de los medicamentos y la obtención de atención médica con regularidad pueden prevenir la presión arterial alta o sus complicaciones.

Pneumococcal, influenza (flu), and Hib vaccines can help prevent certain types of pneumonia. Good hygiene, quitting smoking, and keeping your immune system strong by exercising and healthy eating are other ways to prevent pneumonia.