[Long-term results of prosthetic mitral valve replacement with home-made tilting disc valve: a report of 125 cases]

[Long-term results of prosthetic mitral valve replacement with home-made tilting disc valve: a report of 125 cases] Research Abstract Details 

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[Long-term results of prosthetic mitral valve replacement with home-made tilting disc valve: a report of 125 cases] Abstract Text:

Bao-ren Zhang,Zhi-yun Xu,Liang-jian Zou,Ju Mei,Zhi-nong Wang,Jia-hua Hao,

OBJECTIVE: To analyze the early and long-term results after mitral valve replacement for rheumatic valvular disease by using home-made tilting disc valve, and the determinant factors involved and subsequent therapies. METHODS: One hundred and five patients, including 31 patients with rheumatic mitral stenosis, 92 patients with mixed mitral stenosis and regurgitation, and 2 patients with bacterial endocarditis, underwent prosthetic mitral valve replacement with home-made tilting disc valve from September 1978 to June 1982. Three patients had a history of mitral commissurotomy, and 5 patients had concomitant functional tricuspid regurgitation. All patients were operated on under cardiopulmonary bypass with implantation of 25 - 29 mm size home-made tilting disc valve prosthesis. The associated functional tricuspid lesions were treated at the same time with modified DeVega's valvuloplasty or Kays bicuspidate valvuloplasty. RESULTS: Eleven patients died during the hospital stay with an early operative mortality of 8.8%. The major causes of the early death were low cardiac output syndrome (4 patients), respiratory failure (2), acute renal failure (2), extrinsic prosthesis dysfunction (1), ventricular arrhythmia (1), and left ventricular rupture (1). Ninety-eight survivors were followed up (total 1,162.2 years) for mean duration of 12.8 years. Eighty-nine patients (78%) survived over 10 years after operation, 58 (51%) over 15 years, and 55 (48%) over 20 years. There were 16 late deaths due to heart failure, anticoagulation related bleeding, thromboembolism and recurrence of rheumatic fever. The survival rates at 10 and 20 years were 82.3% and 51.1% respectively. Among the patients who survived over 20 years, 37 patients had the cardiac functional status returned to Class II, 13 Class III, and Class IV. CONCLUSIONS: Severe post-rheumatic valve deformity may occur in younger patients in China. Long-acting penicillin regimen given for 3 - 5 years for the prevention of rheumatic fever relapse is advocated. A low intensity anticoagulant regimen after mitral valve replacement is advisable in lowing the incidence of anticoagulant related bleeding, while optimizing sufficient protection against thromboembolic complication. Proper operative timing (e.g. when the patient is in sinus rhythm and in NYHA functional class II) is of great importance in achieving satisfied long-term results.

[Long-term results of prosthetic mitral valve replacement with home-made tilting disc valve: a report of 125 cases] Publishing Authors By Initials

BR Zhang,ZY Xu,LJ Zou,J Mei,ZN Wang,JH Hao,

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[Long-term results of prosthetic mitral valve replacement with home-made tilting disc valve: a report of 125 cases] Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Zhonghua wai ke za zhi [Chinese journal of surgery

VOLUME: 41

Page Numbers: 253-6

Journal Abbreviation: Zhonghua Wai Ke Za Zhi

ISSN: 0529-5815

DAY: 28

MONTH: Apr

YEAR: 2003

[Long-term results of prosthetic mitral valve replacement with home-made tilting disc valve: a report of 125 cases] Information

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LANGUAGE: chi

NlmUniqueID: 153611

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AFFILIATION: Department of Cardiothoracic Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.

Country: China

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MEDLINETA: Zhonghua Wai Ke Za Zhi

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