(FIT)-Module 3 Workshop 4: SVT and VT Invasive and Non-Invasive Correlation-Marchlinski Case 7 Answer

Video Transcription

Video Summary

The transcript discusses the analysis of heart tracings to diagnose AV reentrant tachycardia. It explains the significance of a late-coupled ventricular premature depolarization (VPD) and its role in advancing atrial activation. The transcript argues against bundle branch reentry, noting that in true AV reentrant tachycardia, the HISS node does not depolarize early with VPDs. The presence of a left lateral accessory pathway is highlighted, confirming its role in the circuit of the tachycardia, identified during wide complex tachycardia with a left bundle branch block. Overall, it supports accessory pathway-mediated tachycardia diagnosis.

Keywords

AV reentrant tachycardia

ventricular premature depolarization

accessory pathway

left bundle branch block

wide complex tachycardia