The decrease in QRS amplitude after aortic valve replacement in patients with aortic valve stenosis.
OBJECTIVE
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.
Department of Cardiology, Hiroshima City Hospital, Moto-machi, Naka-ku, Hiroshima 730-8518, Japan. skurisu@nifty.com
Satoshi
S
Kurisu
Ichiro
I
Inoue
Takuji
T
Kawagoe
Masaharu
M
Ishihara
Yuji
Y
Shimatani
Yasuharu
Y
Nakama
Tatsuya
T
Maruhashi
Eisuke
E
Kagawa
Kazuoki
K
Dai
Junichi
J
Matsushita
Hiroki
H
Ikenaga
D000368:Aged; D001024:Aortic Valve Stenosis / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D004562:Electrocardiography / Q000379:methods*; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D017379:Hypertrophy, Left Ventricular / Q000175:diagnosis* / Q000209:etiology*; D008297:Male