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

Video Transcription

Video Summary

The transcript explains how to identify and differentiate between the right, left, and non-coronary sinus of Valsalva using electrogram and fluoroscopy characteristics. The right sinus, located under the RVOT, shows mainly ventricular electrograms with rare atrial signals. The left sinus can present both, with its position near the mitral annulus. The non-coronary sinus often shows atrial signals, and going deeper may reveal far-field ventricular signals. Fluoroscopic views (LAO and RAO) help confirm sinus identification, with orientations indicating specific sinus locations relative to the interatrial septum and RVOT.

Keywords

sinus of Valsalva

electrogram characteristics

fluoroscopy views

right sinus identification

atrial and ventricular signals