(FIT)-Module 2 Special Workshop: 12 Lead ECG for PVC and VT Localization-Stevenson Case 3 Answer

Video Transcription

Video Summary

The video discusses the identification of premature ventricular contractions (PVCs) originating from the left ventricle. By analyzing the EKG, PVCs show a right bundle branch block-like configuration with a dominant R wave in lead V1 and a rightward frontal plane axis. Observations from mid-precordial leads indicate an S wave in V4, deviating from the expected dominant R wave if originating from the mitral annulus. Thus, this suggests the PVCs are originating from the lateral left ventricular papillary muscle, located slightly above the heart's base, possibly the anterolateral papillary muscle.

Keywords

Premature Ventricular Contractions

Left Ventricle

EKG Analysis

Right Bundle Branch Block

Lateral Left Ventricular Papillary Muscle