In-depth

Causes

Heart arrhythmias

Complications

Flu shots and heart disease

Risk factors

Ehlers-Danlos syndrome

Symptoms

Fatigue

Shortness of breath

Shortness of breath can be frightening. Most of the time, a heart or lung condition is the cause.

Tests and diagnosis

Cardiac catheterization

Cardiac catheterization is used as a test for some heart conditions and as a procedure to treat some types of heart disease. Find out more.

Chest X-rays

Coronary angiogram

A coronary angiogram uses special X-rays to examine the inside of your heart's blood vessels. Find out what to expect when you have the procedure.

Echocardiogram

Electrocardiogram

Stress test

April 05, 2014