An autoimmune disease in which the thyroid gland is attacked by the immune system. The resulting inflammation often leads to an underactive thyroid gland (hypothyroidism).

A sudden and sometimes fatal occurrence of coronary thrombosis, typically resulting in the death of part of a heart muscle. Also called myocardial infarction

Recurrent sudden attacks of unconsciousness caused by impaired conduction of the impulse that regulates the heartbeat.

Accumulation of fluid in the lungs resulting from failure of the left ventricle of the heart.

Failure of the pumping action of the left side of the heart resulting in congestion of the lungs or low heart output.

Failure of the pumping action of the right ventricle resulting in peripheral (systemic) edema or low heart output.

A condition of the heart valve in which it is partially open when it should be closed.

A doctor who specializes in the diagnosis and treatment of the blood and blood-forming organs.

A red protein responsible for transporting oxygen in the blood.

An escape of blood from a ruptured blood vessel.

A doctor who diagnoses and treats diseases of the liver , gallbladder, biliary tree and pancreas.

The good cholesterol that promotes the breakdown, and, removal from the body of its cholesterol.

H2 blockers, also called H2-receptor antagonists, are medicines that reduce the amount of acid the stomach produces by blocking one important producer of acid: histamine2. These medications are commonly used to treat gastroesophageal reflux disease (GERD) and peptic ulcers. Commonly prescribed H2 blockers: cimetidine (Tagamet), famotidine (Pepcid) and ranitidine (Zantac)

A portable ECG device for continuously monitoring various electrical activity of the cardiovascular system for at least 24 hours.

Chemical substances that act like messenger molecules in the body.

A prefix meaning over or high.

High levels of blood sugar.

Blood pressure that is above the normal range.

Hypertrophic cardiomyopathy (also known as HCM, IHSS, hypertrophic obstructive cardiomyopathy) is an illness affecting the heart muscle. It interferes with the heart's ability to pump blood. Sometimes it also changes the heart's natural rhythm, which leads to irregular heartbeats (arrhythmias). Hypertrophic cardiomyopathy, occurs when the heart's muscle fibers grow abnormally. Heart walls thicken, especially in the left ventricle (the main pumping chamber). The left ventricle becomes smaller inside, the heart cannot rest completely between beats, and the ventricle pumps less blood out of the heart. People are at risk for fainting (syncope), chest pain (angina), difficulty breathing (dyspnea), and sudden death.

A prefix meaning under or low.

Low levels of blood sugar.

Hypotonia is decreased muscle tone. Muscle tone is the amount of tension or resistance to movement in a muscle while at rest. It is different from muscle strength which is how much force a muscle can apply. For example, you may be able to do sit-ups which are a measure of abdominal muscle strength but if the belly is not firm then there is low muscle tone. Many people with hypotonia also have muscle weakness. Hypotonic infants are also called "floppy infants" because the low muscle tone and decreased strength of the neck and trunk muscles make the children floppy like a rag doll.

Deficiency in the amount of oxygen reaching the tissues.