Clinical Experience of Medtronic-Hall Valve.
- Author:
Jong Won KIM
1
;
Sung Woon JUNG
Author Information
1. Department of Thoracic and Cardiovascular Surgery, College of Medicine, Pusan National University, Korea.
- Publication Type:Original Article
- Keywords:
Heart valve prosthesis;
Heart Valve replacement;
Medtronic-Hall
- MeSH:
Aortic Valve;
Bicuspid;
Busan;
Cardiac Output, Low;
Endocarditis, Bacterial;
Female;
Heart;
Heart Valve Prosthesis;
Heart Ventricles;
Hemodynamics;
Hemorrhage;
Hepatitis;
Humans;
Korea;
Male;
Mitral Valve;
Postoperative Complications;
Preoperative Period;
Prostheses and Implants;
Rupture;
Surgical Procedures, Operative;
Survival Rate;
Thrombectomy;
Thromboembolism
- From:The Korean Journal of Thoracic and Cardiovascular Surgery
1998;31(11):1031-1036
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND: Medtronic-Hall mechanical valve is a world widely using prosthesis. But, in Korea, the clinical result from Medtronic-Hall valve replacement is not frequenthy available. MATERIALS AND METHODS: From March 1986 to May 1990, 50 patients underwent valve replacement surgery with Medtronic-Hall valve at Pusan National University Hospital. Seventeen were male and thirty three were female and ra nging in age from 16 to 70 years of age (mean=35 years). RESULTS: The causes of valvular lesion were rheumatic in 43 patients, bicuspid aortic valve in 3 patients, degenerative lesion in three patients and bacterial endocarditis in one patient. The operative procedures were mitral valve replacement (MVR) in 38, aortic valve replacement (AVR) in 5 and double valve replacement (DVR) in 7. The most commonly used valve size was 21mm in AVR, 29mm in MVR. Concomitant surgical procedures were performed in 15 patients; left atrial thrombectomy in 9, left atrial auricle obliteration in 6 and tricuspid annuloplasty in 5 (Kay: 2, DeVega: 3). New York Heart Association functional class was mostly Class I or II (91.5%) preoperatively and Class IIIor IV (87.2%) after operation. The findings of postoperative echocardiogram of LAD, LVESD, LVEDD were reduced compared with preoperative period and ejection fraction was increased compared with preoperative period. Postoperative complications were massive bleeding in three, low cardiac output syndrome in two, thromboembolism in one and fulminant hepatitis in one patient. There were three hospital deaths and their causes were low cardiac output syndrome in two and rupture of left ventricle in one patient. The 5 year survival rate was 93.65+/-0.71% and 10 year actuarial survival rate was 88.27+/-6.42%. CONCLUSIONS: Medtronic-Hall mechanical valve has low valve related complication rate. It's durability and hemodynamic performance is comparable to other mechanical valves.
