In-depth

Causes

Heart arrhythmias

Complications

Bronchitis

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

Flu shots and heart disease

Pulmonary hypertension

High blood pressure affecting only the arteries in your lungs is known as pulmonary hypertension. Discover the symptoms, risk factors and treatment for this condition.

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

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

Echocardiogram

Electrocardiogram

Holter monitor

Aug. 22, 2014