External defibrillators can restore a regular heartbeat even after a dangerous arrhythmia disrupts it. But few victims receive care in time. A new study confirms that internal devices can prevent these episodes from happening.
If you snore loudly, wake up gasping during the night and are sleepy all day, have it checked out. Sleep apnea may significantly increase the risk of sudden cardiac death, says a new study.
Hypertrophic cardiomyopathy (HCM) is a complex type of heart disease that affects one in 500 people. Learn more from a Cleveland Clinic physician during a live webchat Friday, Dec. 7, 2012, at noon (ET).
Sudden cardiac arrest is not a heart attack or myocardial infraction. It occurs when the electrical system to the heart suddenly produces a very irregular heart rhythm.