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Figure 2 Reversal of all Precordial Leads

Image 2 of 2 in Series "Reversal of all Precordial Leads"

Description

ECG recorded after correct positioning of the precordial leads. The presence of S waves in the right precordial leads and normal R wave progression is seen. Rhythm is sinus tachycardia at a rate of 114/min. Additional findings are left ventricular hypertrophy, nonspecific T wave abnormality and prolongation of the corrected QT interval (524 msec).

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This image is part of the series "Reversal of all Precordial Leads"

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Figure 1 Reversal of all Precordial Leads

by: Joe B. Calkins, Jr., M.D.

ECG showing reversal of all precordial leads. Leads V1 and V6, leads V2 and V5 and leads V3 and V4 are reversed, resulting in increased R forces and the absence of S waves in the right precordial leads and decreased R wave amplitude and the presence of S waves in the left precordial leads. Rhythm is sinus tachycardia at a rate of 109/min. Additional findings are left ventricular hypertrophy, nonspecific T wave abnormality and prolongation of the corrected QT interval (512 msec).