Find over 200 print-friendly fact sheets about heart disease and related health topics.
Find answers to frequently asked questions about a variety of health conditions, like heart attack, high blood pressure and atrial fibrillation.
What should I do if I experience heart attack symptoms?
What is the difference between hypertension and prehypertension?
What is the difference between pulmonary embolism and deep-vein thrombosis?
Deep-vein thrombosis is clotting in the veins deep within the body. Pulmonary embolism is often a complication of deep-vein thrombosis, which occurs when the clot travels to the lungs, blocking the flow of blood. Both conditions require immediate treatment with anticoagulant medications to help break up the clot and restore normal blood flow.
STEMI and NSTEMI are two classifications for a heart attack. Although both result from the interruption of blood supply to a part of the heart, STEMI results in ST-elevation (elevation of a cardiac enzyme) while NSTEMI does not. Unstable angina, on the other hand, is a condition characterized by chest pain or discomfort that is unexpected and usually occurs at rest. Unstable angina is often accompanied by shortness of breath, indigestion and/or dizziness. Unlike STEMI and NSTEMI, which cause muscle damage in the heart, unstable angina is not associated with muscle damage. However, unstable angina is very dangerous, may progress to a heart attack, and needs emergency treatment.
Unstable angina and NSTEMI often appear identical at first presentation. The difference can be ascertained only after an ECG and blood tests to look for markers that indicate heart muscle damage.
Call 9-1-1 immediately if you have the following symptoms:
What is the difference between Type 1 and Type 2 diabetes?
What is the difference between elective and emergency percutaneous coronary intervention (PCI)?
What is the risk of developing cardiac arrest during or after a marathon?
What is venous thromboembolism and why is it dangerous?
When do I need to see a cardiologist?
When are women at greatest risk for heart attack during pregnancy?
What type of exercise is recommended for heart failure patients?
How can I help prevent heart failure?
How can I help prevent HPV?
How can I help prevent stroke?
How can I prevent Type 2 diabetes?
How can I prevent AF?
How can I prevent PFO?
How can doctors assess the hostility of a patient?
How are stents placed in blocked arteries?
Stents are placed in the artery through a flexible tube called a catheter during angioplasty. Most often made of metal mesh, stents expands once in place, helping to strengthen the walls of the artery and prevent future blockage.
How can doctors test inflammation of adipose tissue?
The risk factors for PAD are similar to those for heart disease. Some factors you cannot control—being older or having a family history of heart disease—but there are many that you can.
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