Which of the following results in broad complex tachycardia?
Correct Answer: Antidromic conduction in Accessory pathway mediated tachycardia
Description: Antidromic conduction in AP mediated tachycardia results in broad complex tachycardia as the impulses travel in the ventricles inter-myocyte conduction. Speed of conduction of inter-myocyte conduction is less than that of purkinje network leading to broad complex tachycardia. Choices B, C and D result in narrow complex tachycardia. Impoant causes of broad complex tachycardia- Antidromic conduction in WPW Monomorphic VT Torsades de pointes/ Polymorphic Ventricular tachycardia
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