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Arrhythmia
Definition:
An arrhythmia is any disorder of heart rate or rhythm.Causes,
incidence, and risk factors.
Arrhythmias
are caused by a disruption of the normal electrical conduction
system of the heart. Normally, the 4 chambers of the heart (2
atria and 2 ventricles) contract in a very specific, coordinated
manner. When the heart beats faster than normal, it is called
tachycardia. Bradycardia is a slower-than-normal rhythm.
The
incidence of tachycardia and bradycardia varies greatly, depending
on the condition of the heart itself, the history of prior heart
attack, blood chemistry imbalance, or endocrine abnormalities.
Arrhythmias
may also be caused by some substances or drugs. These include
beta blockers, psychotropics, sympathomimetics, caffeine, amphetamines,
and cocaine. Sometimes antiarrhythmic medications -- prescribed
to treat one type of arrhythmia -- can actually cause another
type of arrhythmia.
Some
types of arrythmias may be life-threatening if not promptly and
adequately treated.
Suggested
Minerals: Potassium and Magneseum
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