(FIT)-Module 3 Workshop 5: Invasive and Non-Invasive Correlation-Stevenson Case 9 Answer

Video Transcription

Video Summary

The video discusses a type of tachycardia originating from the right ventricular moderator band, characterized by a left bundle branch block configuration and superiorly directed frontal plane axis, confirming it as ventricular tachycardia. This form of tachycardia, possibly automatic, may not respond to cardioversion, posing challenges during ablation due to catheter instability on the moderator band. Intracardiac ultrasound and fluoroscopic images highlight the catheter's position on the moderator band, which contains Purkinje fibers. The typical QRS morphology includes a late transition, left bundle branch block, and superior axis typical of these arrhythmias.

Keywords

right ventricular moderator band tachycardia

left bundle branch block

ventricular tachycardia

intracardiac ultrasound

Purkinje fibers