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arrhythmia |
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arrhythmiaDisturbance of the normal rhythm of the heart. There are various kinds of arrhythmia, some benign, some indicative of heart disease. In extreme cases, the heart may beat so fast as to be potentially lethal and surgery may be used to correct the condition. Extra beats between the normal ones are called extrasystoles; abnormal slowing is known as bradycardia and speeding up is known as tachycardia.
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| Competitive and repetitive underwater swimming is extremely dangerous, often leading to sudden death by cardiac arrhythmia and other physiological causes. DIED: Phillip Horvilz, 44, a Hew York-based gay performance artist and choreographer, of cardiac arrhythmia while flying to California, March 30. Taking fish oil supplements reduced the episodes of irregular heartbeats in a study of 65 people with cardiac arrhythmia. |
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