CARDIOVASCULAR
ENGINEERING
Journal for Extracorporeal Circulation, Assist Devices,Transplantation and Artificial Organs
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CARDIOVASCULAR
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Volume 2, 1997, No 4 |
Abstract:
The purpose of the study is to analyse the long-term results with
valve replacement in the elderly group with the bovine
pericardial bioprostheses developed by the Heart Institute of
São Paulo. Between January 1982 and December 1995, 463 FISICS -
INCOR bovine pericardial bioprostheses were implanted in 432
patients older than 65 years. The average age was 70,3 +/- 4,3
years, and 58,1% were male. We performed 286 aortic valve
replacements, 144 mitral replacements, 16 mitral-aortic
replacements, and 1 tricuspid replacement. There have been
associated procedures in 158 patients (36,6%), the most frequent
was myocardial revascularization (19,2%). The hospital mortality
was 53 patients (12,2%), 18,7% for the mitral group, 7,7% for the
aortic, and 18,8%for the double valve replacement. The linearized
rates for calcification, thromboembolism, rupture, leak and
endocarditis were 0,4; 0; 0,8; 0,1 and 0,1% patient-year. The
actuarial survival curve was 31,4 +/- 14,1% in 12 years. Freedom
from endocarditis was 99,4 +/- 0,6%, thromboembolism 100%,
rupture 91,8 +/- 3,8% , calcification 95,4 +/- 2,2% and leak 99,7
+/- 0,3% in 12 years. In the late post-operative period, 293
patients (87,7%) were in NYHA functional class I. We conclude
that the results with the FISICS- INCOR bovine pericardial
bioprostheses were satisfactory in the group of elderly patients.
Keywords:
Bioprostheses, valve surgery, elderly
Address for Correspondence:
Reference:
(CVE. 1997; 2 (4): 267-270)
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