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The Mid Term Clinical Result and the Risk Factor Analysis of Isolated Aortic Valve Replacement  

Park Jae-Min (Department of Thoracic and Cardiovascular Surgery, Pusan Paik Hospital, College of Medicine, Inje University)
Jun Hee-Jae (Department of Thoracic and Cardiovascular Surgery, Pusan Paik Hospital, College of Medicine, Inje University)
Yoon Young-Chul (Department of Thoracic and Cardiovascular Surgery, Pusan Paik Hospital, College of Medicine, Inje University)
Lee Yang-Hang (Department of Thoracic and Cardiovascular Surgery, Pusan Paik Hospital, College of Medicine, Inje University)
Hwang Yoon-Ho (Department of Thoracic and Cardiovascular Surgery, Pusan Paik Hospital, College of Medicine, Inje University)
Cho Kwang Hyun (Department of Thoracic and Cardiovascular Surgery, Pusan Paik Hospital, College of Medicine, Inje University)
Han Il-Yong (Department of Thoracic and Cardiovascular Surgery, Pusan Paik Hospital, College of Medicine, Inje University)
Publication Information
Journal of Chest Surgery / v.38, no.2, 2005 , pp. 110-115 More about this Journal
Abstract
Background: The aims of this paper were to review the mid term clinical results and to analyze the preoperative risk factors of isolated aortic valve replacement (AVR). Material and Method: Between January 1992 and February 2003, 80 patients underwent isolated AVR. 58 were male and 22 were female patients, raging from 12 to 75 years of age (mean :$46.8{\pm}13.0$ years). 74 patients except one early death and 5 follow-up loss were contacted by OPD or by telephone. The mean duration of follow-up was $44.2{\pm}29.7$ months and the total cumulative period was 272.8 patient-year. Result: The complications in hospital occurred in 35 cases : 12 wound problems (11 superficial, 1 deep), 11 arrhythmias (9 temporary, 2 persistent), 3 low cardiac output, and so forth. The late deaths were 4 cases : the heart-related deaths were 2 cases ($0.7\%$ patient-year). Conclusion: The risk factors that influenced the early mortality and morbidity were older age (> 60 years)(p=0.04), poor preoperative NYHA functional class (> 3) (p=0.048), high preoperative serum creatinin level (> 1.2 mg/100 ml)(p=0.031), long operation time (aortic clamping time>90 min)(p=0.042). The same factors influenced the late mortality and morbidity. Freedom from valve-related complication was $86.4{\pm}5.3\%,$ actuarial survival rate were $96.8{\pm}2.3\%$ at 3 years and $90.8{\pm}4.6\%$ at 10 years.
Keywords
Aortic valve; Surgery; Risk analysis;
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