A pacemaker is a small device that doctors place in people with an abnormal heartbeat.

VOA: special.2010.06.02

For a choking victim who is unconscious with no heartbeat, clear the airway first.

VOA: special.2009.08.11

This is the most common cause of an unusual,or abnormal, heartbeat in older adults.

VOA: special.2009.09.22

This is the most common cause of abnormal heartbeat in older adults.

VOA: special.2009.08.12

A condition called atrial fibrillation produces an abnormal heartbeat.

VOA: special.2010.02.17

Her heartbeat helps control the baby's breathing rate.

VOA: special.2009.05.25