Congenital long QT syndrome can lead to -: (A) Complete hea block, (B) atrial fibrillation, (C) Acute myocardial infarction., (D) Recurrent ventricular tachycardia.
Answer is D. Long QT syndrome (LQTS) is a rare congenital and inherited or acquired hea condition in which delayed repolarisation of the hea following a heabeat increases the risk of episodes of torsades de pointes (TdP, a form of irregular heabeat that originates from the ventricles ). These episodes may lead to fainting and sudden death due to ventricular fibrillations . Episodes may be provoked by various stimuli Ref Harrison 20th edition pg 1445