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Author (up) Ohtaki, M.; Kawashima, M.; Miki, T.; Yamaguchi, A.; Tamura, H.; Kitamura, N. url  openurl
  Title [Clinical experience with the omnicarbon valve prosthesis] Type Journal Article
  Year 1992 Publication [Zasshi] [Journal]. Nihon Kyobu Geka Gakkai Abbreviated Journal Nihon Kyobu Geka Gakkai Zasshi  
  Volume 40 Issue 12 Pages 2131-2135  
  Keywords Adult; Aged; Aortic Valve; Female; Follow-Up Studies; Heart Valve Diseases/mortality/*surgery; *Heart Valve Prosthesis/mortality/standards; Humans; Male; Middle Aged; Mitral Valve; Prognosis; Survival Rate  
  Abstract Between January 1985 and March 1990, isolated valve replacements with the Omnicarbon valve were performed in 90 patients aged 34-72 years. There were 53 aortic valve replacements (AVR) and 37 mitral valve replacements (MVR). The cumulative follow-up was 320 patient-year (py) with a mean follow-up of 3.7 +/- 1.4 years. There were 3 operative and hospital mortalities (3.3%), resulting from retrograde aortic dissection during cardiopulmonary bypass, postoperative renal failure, and rupture of infective pseudoaneurysm in ascending aorta. Seven patients died during the late postoperative period, 4 due to valve-related causes. Two of these patients died of prosthetic valve endocarditis (PVE), while the others died of thromboembolism (including valve thrombosis). The overall actuarial survival rate at 6 years was 86.3% (98.8% for AVR, and 82.1% for MVR). There were 2 thromboembolic events (one mesenteric artery thrombosis, and the other valve thrombosis). The linearized incidence of thromboembolism was 0.63%/py. PVE occurred in 3 patients (0.94%/py). One patient (0.31%/py) was found to have a valve dehiscence due to aortitis syndrome. There were no instances of anticoagulant-related hemorrhage, or valve-related hemolysis. The actuarial rate of freedom from valve-related mortality at 6 years was 93.5% (100% for AVR, and 88.1% for MVR). On the basis of a follow-up period of 6 years, good clinical results and a low incidence of valve-related complications can be demonstrated with Omnicarbon valve.  
  Address Department of Cardiovascular Surgery, Osaka National Hospital, Japan  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Japanese Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0369-4739 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:1491190 Approved no  
  Call Number refbase @ user @ Serial 21533  
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