Reoperation-free survival after closed mitral commissurotomy. A 28-year follow-up study in 469 patients.
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.
Nakano
S
S
Kawashima
Y
Y
Hirose
H
H
Matsuda
H
H
Sato
S
S
Manabe
H
H
D000206:Actuarial Analysis; D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery; D008946:Mitral Valve Stenosis / Q000401:mortality / Q000601:surgery*; D010166:Palliative Care; D012086:Reoperation; D013997:Time Factors