In-depth

Complications

Bronchitis

Bronchitis often develops after a cold. Learn how to prevent this potentially serious lung infection.

Flu shots and heart disease

Pulmonary hypertension

Symptoms

Edema

Fatigue

Heart murmurs

Heart palpitations

Heart palpitations are skipped, fluttering or racing heartbeats that aren't usually a symptom of a serious heart problem. Discover the causes and symptoms of this condition.

Shortness of breath

Tests and diagnosis

Cardiac catheterization

Chest X-rays

Echocardiogram

Electrocardiogram

Holter monitor

Aug. 22, 2014