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만성 대동맥판 폐쇄부전증 환자에서 대동맥판 치환술후 좌심실 용적 및 심전도 변화

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Author(s)
김윤년김기식송영성윤병헌윤덕구김권배
Publication Year
1990
Keyword
Aortic valve replacementLeft ventricular function
Abstract
Left ventricular(LV) hypertrophy is correlated with left ventricular myocardial mass, which occurs after long-standing LV over-loading. It is expected that surgical correction of chronic aortic regurgitation(AR) changes LV loading and then come changes in the LV function, dimension and myocardial mass. Serial electrocardiographic, echocardiographic LV studies were performed in 25 patients before and after aortic valve replacement(AVR) for chronic AR. Electrocariographic voltages were reduced significantly in 3 months after AVR(from 58.13±29.44 to 44.73±13.97(mm), p<0.05). Left ventricular systolic dimension was lessened markedly in the first 3 months after operation (from 4.55±105 to 3.38+0.04(cm), p<0.05), but diastolic dimension was changed in the first 7 days(from 6.90±1.18 to 5.34±0.96(cm), p<0.05) The thickness of interventrcular septum and LV posterior wall increased after operation but they were not significant statistically. Ejection fraction decreased in the first 7 days after AVR(to 48.88±15.67(%), P<0.05), after then recovered as in the preoperative state. Muscle cross-sectional area was reduced at early post operative period(from 27.38±6.74 to 24.26±5.60(cm²), p<0.05) and increased thereafter. Thus, successful AVR for chronic AR results in the normalization of LV function and a decrease in ventricula₁ hypertrophy, while these changes in the LV function and dimension occur in early postop period.
Alternative Title
Changes of Left Ventricular Volume, Mass and Functions after Aortic Valve Replacement
Department
Dept. of Internal Medicine (내과학)
Publisher
Keimyung University School of Medicine
Citation
Keimyung Medical Journal, Vol.9(2) : 248-254, 1990
Type
Article
URI
http://kumel.medlib.dsmc.or.kr/handle/2015.oak/14631
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