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The chemicals in tobacco smoke harm your blood cells. Smoking can also damage the function of the heart and the structure and function of blood vessels, leading to atherosclerosis and its complications (coronary heart disease, heart attack, heart failure, arrhythmia, peripheral artery disease, and stroke).

A heart attack happens when the flow of oxygen-rich blood to a section of heart muscle suddenly becomes blocked and the heart can’t get oxygen. If you think you or someone else may be having heart attack symptoms or a heart attack, call 9–1–1 for emergency medical care.

Signs and symptoms of Marfan syndrome depend on which parts of the body are affected and the severity of the condition. Some people have few or no signs or symptoms, while others experience severe symptoms or life-threatening complications.

Pacemakers use low-energy electrical pulses to control the rate and rhythm of your heartbeat. Traditional pacemakers send the electrical pulses through wires, also known as leads. Wireless pacemakers are a newer kind of pacemaker without wires.

Mitral valve prolapse is a condition in which the flaps of the mitral valve are floppy, or prolapsed, which can prevent the seal from forming, which results in a backflow of blood in the left atrium as blood is pumped through the heart.

It may be possible for your doctor to diagnose the type of vasculitis that you have and how severe or advanced it is. Depending on your signs and symptoms, your doctor may recommend you to a specialist for tests or do diagnostic tests or procedures.

Atherosclerosis is the main cause of PAD. Plaque buildup in the arteries is called atherosclerosis. Atherosclerosis is a disease in which a waxy substance called plaque builds up on the inner lining of arteries. Plaque is made up of fat, cholesterol, fibrous tissue, and calcium. In PAD, plaque may reduce or fully block the flow of oxygen-rich blood through arteries to the body’s vital organs and the limbs.

AAT deficiency usually is diagnosed after you develop a lung or liver disease that is related to the condition. But knowing the symptoms and getting an early diagnosis is important to help prevent serious disease, especially with treatment and lifestyle changes.

Un ataque cardíaco ocurre cuando se obstruye de repente el flujo de sangre rica en oxígeno que llega a una parte del músculo cardíaco y el corazón no puede obtener oxígeno. Si usted piensa que usted u otra persona está teniendo síntomas de un ataque cardíaco o un ataque cardíaco, llame al 9-1-1 para recibir atención médica de urgencia.

Hypersensitivity pneumonitis is caused by repeated exposure to environmental substances that cause inflammation in the lungs when inhaled. Substances include: bacteria, fungi or molds, proteins, or chemicals.