In-depth

Complications

Premature birth

Symptoms

Tachycardia

Tachycardia, a rapid heart rate, is caused by an abnormality in your heart's electrical impulses. Tachycardia can cause serious complications, including sudden cardiac arrest.

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

MRI

MRI uses a magnetic field and radio waves to create detailed images of the organs and tissues within your body.

Dec. 16, 2014