phuluong2k
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In idiopathic hypertrophic aubaortic stenosis, what is the cause of sudden death ?
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| ssrpk
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arrythmia....mostly ventricular fibrillation
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| SDK
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you are correct ssrpk.
Ventricular fibrillation usually in athletes after extraordinary exertion.
In IHSS----asymmetrical septal hypertrophy-----left ventricular outflow tract is narrowed during systole-----worsed by factors which inc: myocardial contractlity(digoxin,sympathatic NS stimulator) or dec: left ventricular filling(valsalva maneuver).
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| ssrpk
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i agree with u ....but u mentioned factors worsening the condition.
how can dec. ventricualr feiiling(valsalva manuever) initiate ventricular fibrillation?
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| phuluong2k
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yeah you are right, it due to VF, the cause is the existing abnormal conduction pathway ( i forget the exact name )
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