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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.

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References in periodicals archive ?
Judes Regent series aortic valve) with total chordal preservation, left atrial reduction plasty and tricuspid commissurotomy. Intra operative TEE revealed presence of right atrial mass (Figure 1).
Keywords: End-diastolic trans-mitral gradient, Percutaneous transvenous mitral Commissurotomy, Mitral Stenosis.
A percutaneous balloon mitral commissurotomy is effective for selected patients with isolated mitral valve stenosis, resulting in a rapid decrease in left atrial pressure and pulmonary arterial pressure.
Other techniques include quadrangular resection, PPM repositioning, PPM shortening, artificial chord, patching, annular sliding, chordal transferring, decalcification, height reduction, commissurotomy, and indentation closure.
* Surgical commissurotomy may be carried out in patients who are not good candidates for balloon valvuloplasty due to severe valve calcification.
Percutaneous transvenous mitral commissurotomy: with or without heparin?
The current study was planned to determine the effect of percutaneous transvenous mitral commissurotomy (PTMC) on brain natriuretic peptide (BNP) levels in mitral stenosis patients.
Objective: To know the regression of right ventricular pressure after successful percutaneous transluminalmitral commissurotomy (PTMC) in patients with severe isolated mitral stenosis.
Before technical development of transcatheter interventions, most patients with symptomatic mitral stenosis were treated with surgical mitral commissurotomy, either open or closed [1].
Regardless of the method used, commissurotomy has shown improvement in the ability to feed [11].