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. The outcome varies.
Some affected individuals remain without symptoms for many years and have a normal life span.
Some may deteriorate gradually or rapidly. There may be progression into dilated cardiomyopathy . This is a cross-sectional view of the interior of the heart. The valves, chambers, and associated vessels are labeled.