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Updated: Jun 24, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
The decrease in QRS amplitude after aortic valve replacement in patients with aortic valve stenosis
Satoshi Kurisu1, Ichiro Inoue, Takuji Kawagoe
1Department of Cardiology, Hiroshima City Hospital, Moto-machi, Naka-ku, Hiroshima 730-8518, Japan. skurisu@nifty.com
Purpose:
The purpose of this study was to evaluate the effect of aortic valve replacement on electrocardiogram (ECG) in patients with aortic valve stenosis.
Methods:
Serial 12-lead ECGs were obtained in 15 patients with aortic valve stenosis who underwent aortic valve replacement. Three ECG indexes for left ventricular hypertrophy were manually measured in each ECG: Sokolow-Lyon index (sum of S wave in V(1) and R wave in V(5)), Cornell voltage index (sum of R wave in aVL and S wave in V(3)), and Gubner index (sum of R wave in I and S wave in III).
Results:
After aortic valve replacement, Sokolow-Lyon index gradually decreased during 2 years (51.1 +/- 17.9 to 34.8 +/- 12.5 mm, P < .01). Cornell voltage index (25.6 +/- 7.0 to 15.0 +/- 4.8 mm, P < .01) and Gubner index (15.8 +/- 7.6 to 10.3 +/- 5.5 mm, P < .01) also gradually decreased during 2 years. ST depression in V(6) was found in 14 patients (93%) before aortic valve replacement. It resolved in 9 of 14 patients during 2 years.
Conclusions:
Electrocardiographic evidence of left ventricular hypertrophy gradually resolved after aortic valve replacement in patients with aortic valve stenosis.
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