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E

Term Definition
EC/IC bypass

see "brain bypass"

ECG

See Electrocardiogram.

Echocardiogram

a test that uses reflected sound waves to produce detailed images of the heart; most common way of determining your ejection fraction; echo for short

Eclampsia

A rare disorder that occurs only during pregnancy, characterized by seizures, coma, and sometimes death. Its symptoms include high blood pressure, the excretion of protein in the urine, and swelling. See also Pre-eclampsia.

eczema

a scaly, itchy skin rash that may be a sign of chronic vein disease

Edema

Abnormal fluid accumulation in body tissues leading to swelling. It can be a sign of congestive heart failure.

Eicosapentaenoic acid (EPA)

An omega-3 fatty acid found in fish, particularly oily fish. Fish oils may lower your risk of heart attack particularly if you already have heart disease.

Ejection fraction (EF)

a measure of how much blood your heart pumps - or ejects - out of a filled pumping chamber with each heartbeat; used to diagnose and monitor heart failure by determining how well your heart is working (50 percent or higher is normal); usually measured on the left ventricle, the main pumping chamber of the heart

Electrocardiogram (EKG or (ECG)

A test that records the electrical activity of the heart. An ECG is used to locate the part of the heart where a heart attack is occurring (or has occurred).

Electrode

The part of the pacemaker that touches the heart to deliver the electrical signal.

Electroencephalogram (EEG)

A test that uses electrodes attached to the scalp to record the brain's electrical activity; used to diagnose seizures

Embolism

A clot that breaks off from its point of origin and lodges in another blood vessel.

Endarterectomy

A surgical procedure wherein an artery is opened and plaque is removed.

Endocarditis

An infection or inflammation of the inner lining of the heart or its valves.

Endocardium

The lining of the inner surfaces of the heart.

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