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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.

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.

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.

LAM is diagnosed based on your medical history and the results from diagnostic lung function tests, imaging tests such as high-resolution CT scans, VEGF-D blood tests, or other procedures.

Your doctor may diagnose overweight and obesity based on your medical history, a physical exam that checks your body mass index (BMI) and waist circumference, and tests to rule out other medical conditions.

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.

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.

Signs and symptoms vary between acute, subacute, and chronic hypersensitivity pneumonitis and may include flu-like illness including fever, chills, muscle or joint pain, or headaches; rales; cough; chronic bronchitis; shortness of breath; anorexia or weight loss; fatigue; fibrosis of the lungs; or clubbing of fingers or toes. Complications of chronic disease may include irreversible lung damage, permanently reduced lung function, pulmonary hypotension, or heart failure.

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.