What is the mechanism of syncope in aortic stenosis ?
• The left ventricle is suddenly unable to contract (transient electro-mechanical dissociation) against the stenosed valve.
• Cardiac arrhythmias (bradycardia, ventricular tachycardia or fibrillation).
• Marked peripheral vasodilatation without a concomitant increase in cardiac out-put. particularly after exercise.
Lexo edhe:
• The left ventricle is suddenly unable to contract (transient electro-mechanical dissociation) against the stenosed valve.
• Cardiac arrhythmias (bradycardia, ventricular tachycardia or fibrillation).
• Marked peripheral vasodilatation without a concomitant increase in cardiac out-put. particularly after exercise.
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Lexo edhe: