commissurotomy

(redirected from commissurotomies)
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com·mis·sur·ot·o·my

 (kŏm′ə-sho͝o-rŏt′ə-mē)
n. pl. com·mis·sur·ot·o·mies
Surgical incision of a commissure in the body, as one made in the heart to relieve constriction of the mitral valve or one made in the brain to treat seizure disorders.