Hypertrophic cardiomyopathy

Alternative names:

cardiomyopathy - hypertrophic; hypertensive hypertrophic cardiomyopathy; idiopathic hypertrophic subaortic stenosis; IHSS

Treatment:

Treatment is aimed at control of symptoms. Hospitalization may be required until the condition is stabilized.

Medications include beta-blockers. Calcium channel blockers such as verapamil may be added. Antiarrhythmics may be used to prevent lethal arrhythmias.

Surgical removal of part of the enlarged tissue may be helpful in severe cases.

Expectations (prognosis):

The outcome varies. Some affected individuals remain without symptoms for many years and have a normal life span. Sudden death may occur at any time (hypertrophic cardiomyopathy is the most frequent cause of sudden death in athletes). Some may deteriorate gradually or rapidly. There may be progression into dilated cardiomyopathy.

Complications:

• congestive heart failure
• cardiac arrhythmias, including lethal arrhythmias
• dilated cardiomyopathy

Calling your health care provider:

Call for an appointment with your health care provider if:

• symptoms indicate hypertrophic cardiomyopathy may be present.
• chest pain, palpitations, faintness, or other new or unexplained symptoms develop.