Reoperation-free survival after closed mitral commissurotomy. a 28-year follow-up study in 469 patients
Nakano, S.; Kawashima, Y.; Hirose, H.; Matsuda, H.; Sato, S.; Manabe, H.
Journal of Cardiovascular Surgery 27(1): 103-107
1986
ISSN/ISBN: 0021-9509 PMID: 2418027 Document Number: 277602
We evaluated the long-term results in 469 patients who underwent closed mitral commissurotomy (CMC) between 1952 and 1972, and analyzed actuarial and reoperation-free survival rates together with the recurrence of symptoms necessitating reoperation after CMC. There were 36 operative deaths (7.6%) and 167 late deaths (36.8%) including 40 deaths following reoperation. One hundred and twenty patients (26%) required reoperation a mean of 13.8 years after CMC, with a range of one to 27 years. The actuarial survival rates were 75%, 58% and 38% at 10, 20 and 28 years after surgery, respectively. The reoperation-free survival rates were 70%, 42% and 15% at 10, 20 and 28 years, respectively. Untreated subvalvular changes and inadequate commissurotomy were definite factors adversely influencing the long-term results.