
What is an arrhythmia?
An arrhythmia is an electrical malfunction of the heart causing an irregular heartbeat. This is not a heart attack. It can be too fast, too slow, or erratic. Often, these are brief. If they last longer, the heart could start pumping less effectively. This can often be corrected by a pacemaker, implantable cardioverter defibrillator (ICD), and/or medications.
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