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The Annals of Thoracic Surgery, Vol 29, 142-145, Copyright © 1980 by The Society of Thoracic Surgeons
J Byrne, MM Kirsh, JD Morris and H Sloan
The long-term results of open mitral valvuloplasty in 51 patients are
assessed. At the time of operation, 4 patients were in New York Heart
Association Functional Class II, 41 in Functional Class III, and 5 in
Functional Class IV. Group I (14 patients) had had previous closed mitral
commissurotomy. Three patients died 2 to 4 years after open valvuloplasty.
One patient died following valve replacement 7 years after the open
valvuloplasty. Five others required mitral valve replacement 1 to 12 years
following open valvuloplasty. Only 4 of the 14 patients are in Functional
Class I or II 10 to 15 years following valvuloplasty. Group II (36
patients) had never undergone a previous mitral operation. Four of them
died of progressive myocardial failure 4 to 6 years following
valvuloplasty. One patient died of carcinoma of the lung 2 years
postoperatively. Six patients underwent valve replacement 6 to 11 years
following initial operation. Twenty-six have survived for at least 10 years
without additional operation. Fourteen are in Functional Class I, and 12
are in Funcitonal Class II. Open mitral valvuloplasty allows for (1)
accurate commissurotomy and careful subvalvular dissection, (2) direct
vision to diagnose clot in the left atrial appendage or left atrium proper,
(3) accurate assessment of residual or induced mitral regurgitation and
immediate repair, and (4) reasonable operative mortality and morbidity.
ARTICLES
Long-term results of open mitral valvuloplasty
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