Heart disease - Symptoms and causes - Mayo Clinic
Heart disease describes a range of conditions that affect the heart. Heart disease includes: Blood vessel disease, such as coronary artery disease. Irregular heartbeats, called arrhythmias. Heart conditions that you're born with, called congenital heart defects. Disease of the heart muscle. Heart valve disease.

What is Cardiovascular Disease? | American Heart Association
Cardiovascular disease can refer to a number of conditions: Heart and blood vessel disease, also called heart disease, includes numerous problems, many of which are related to atherosclerosis. Atherosclerosis is a condition that develops when a substance called plaque builds up in the walls of the arteries.

Cardiac Arrest - American Heart Association
Cardiac arrest is the abrupt loss of heart function in a person who may or may not have been diagnosed with heart disease. It can come on suddenly or in the wake of other symptoms. Cardiac arrest is often fatal if appropriate steps aren’t taken immediately.

Cardiovascular Disease: Types, Causes & Symptoms - Cleveland Clinic
Cardiovascular disease is a group of diseases affecting your heart and blood vessels. These diseases can affect one or many parts of your heart and/or blood vessels. A person may be symptomatic (physically experiencing the disease) or asymptomatic (not feeling anything at all).

Cardiac Definition & Meaning - Merriam-Webster
The meaning of CARDIAC is of, relating to, situated near, or acting on the heart. How to use cardiac in a sentence.

Sudden cardiac arrest - Symptoms and causes - Mayo Clinic
Sudden cardiac arrest (SCA) is the sudden loss of all heart activity due to an irregular heart rhythm. Breathing stops. The person becomes unconscious. Without immediate treatment, sudden cardiac arrest can lead to death.

Cardiomyopathy - Symptoms and causes - Mayo Clinic
Cardiomyopathy (kahr-dee-o-my-OP-uh-thee) is a disease of the heart muscle. It causes the heart to have a harder time pumping blood to the rest of the body, which can lead to symptoms of heart failure. Cardiomyopathy also can lead to some other serious heart conditions. There are various types of cardiomyopathy.

Heart Disease: Types, Early Signs, Symptoms, Prevention
Heart disease represents a wide range of conditions, and its symptoms can vary; different types come with different signs. CVD can be asymptomatic, meaning many people live for months or years without symptoms. Often, the underlying issue is not identified until it starts causing complications.