(FIT)-Module 4 Workshop 7: Electrocradiogrpahic and Electrophysiological Correlations, Atrial Fibrillation, Clinical Scenarios and Syndromes-Gerstenfeld Case 3 Answer

Video Transcription

Video Summary

The video transcript discusses examining heart rhythm, focusing on pulmonary vein entry and exit blocks. Initially, sinus rhythm indicates entry block into the pulmonary vein. During pacing, it captures the pulmonary vein, but not always the left atrium, showing intermittent exit. Complete isolation requires both entry and exit block. The transcript highlights that entry and exit blocks usually occur together, but the emphasis is on exit block to eliminate atrial fibrillation triggers. Far-field signals from areas like the left atrial appendage can appear, but differ from sharp pulmonary vein signals. The discussion includes partial isolation without complete exit block from the pulmonary vein.

Keywords

pulmonary vein isolation

entry block

exit block

atrial fibrillation triggers

heart rhythm analysis