(FIT)-Module 2 Special Workshop: 12 Lead ECG for PVC and VT Localization-Stevenson Case 7 Answer

Video Transcription

Video Summary

The video discusses how to identify the origin of premature ventricular contractions (PVCs) based on ECG features. PVCs with a left bundle branch block-like configuration in V1, a prominent R-wave in V2, and an inferiorly directed frontal plane axis suggest they originate from the left ventricular outflow tract (LVOT). Characteristics like tall, broad R-waves in V2 indicate the LVOT due to its posterior position. Although subtle differences in QRS morphology can make distinguishing between left and right ventricular outflow tract challenging, the R-wave amplitude and width in V2 serve as key indicators.

Keywords

Premature Ventricular Contractions

ECG Features

Left Ventricular Outflow Tract

R-wave in V2

QRS Morphology