J.Jpn. Surg. Soc.. 80(12): 1525-1529, 1979

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Report on the annual meeting

LONG-TERM RESULTS AFTER MITRAL COMMISSUROTOMY

Two-hundred and seventy-nine patients were followed up for 12 to 21 years after successful mitral commissurotomy. While 45.4% of patients operated on with the finger-fracture method (CMCF) survived without reoperation for 21 years, 89.8% of those operated on with the transventricular dilator method (CMCD) and 94.9% with the open method (OMC) survived without reoperation for 15. and 12 years, respectively.
Changes in parameters from chest film, electrocardiogram, echocardiogram and lung scintigram showed a similar tendency in the 3 groups ; that is, a significant improvement immediately after surgery followed by a gradual deterioration starting several years after surgery.
Long-term results after CMCF revealed to be poor. However, there were no statistical differences between CMCD and OMC in the actuarial survival rate, the reoperation-free rate and postoperative changes of laboratory findings.
From these results, it would be concluded that commissurotomy is a reasonable palliation for mitral stenosis, and CMCD would be valid at the present time, though its indication is limited in strictly selected patients.

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