Session II: Invasive Diagnosis and Treatment-6154-Workshop #2- Entrainment and SVT Maneuvers

Video Transcription

Video Summary

In this video transcript, the speaker discusses various cases of ventricular tachycardia (VT) and the use of pacing maneuvers during electrophysiological study to determine the mechanism of the tachycardia. In the first case, a pacing site within the reentry circuit isthmus is identified. In the second case, the pacing site is found to be outside of the reentry circuit, suggesting a bystander site. In the third case, the pacing site is determined to be remote from the VT circuit. In the fourth case, the pacing site is deemed to be within the reentry circuit isthmus. In the fifth case, the pacing site is found to be remote from the VT circuit. In the sixth case, the pacing site is identified as being within the reentry circuit isthmus proximal to the exit. In the seventh case, the pacing site is determined to be within the VT circuit isthmus. In the eighth case, the response to entrainment is deemed indeterminate due to the unstable VT cycle length. Overall, pacing maneuvers can help in determining the mechanism of VT and identifying the most appropriate ablation targets.

Keywords

ventricular tachycardia

pacing maneuvers

electrophysiological study

reentry circuit

pacing site

bystander site

VT circuit

ablation targets

entrainment

unstable VT cycle length