Aortic regurgitation electrocardiogram

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Cafer Zorkun, M.D., Ph.D. [2]; Varun Kumar, M.B.B.S.; Lakshmi Gopalakrishnan, M.B.B.S.

Overview

Electrocardiographic abnormalities in the patient with aortic insufficiency include left ventricular hypertrophy and left axis deviation.

Electrocardiogram

In aortic insufficiency, the electrocardiographic findings are nonspecific. However, the following may be noted:

• Left ventricular hypertrophy

Left ventricular hypertrophy

Copyleft image obtained courtesy of ECGpedia,http://en.ecgpedia.org/wiki/Main_Page

• Left axis deviation

Left axis deviation

Copyleft image obtained courtesy of ECGpedia,http://en.ecgpedia.org/wiki/Main_Page

• Left atrial enlargement
• Left ventricular volume overload pattern (prominent Q waves in leads I, aVL, and V3 to V6 and relatively small R waves in V1)
• Left ventricular conduction defects (typically late in the disease process)
• Re-polarization abnormalities
• ST-segment depression in precordial leads.