A Preliminary Evaluation of Transventricular Aortic Commissurotomy with an Improved Dilator

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Abstract
AORTIC commissurotomy now may be considered for any patient disabled by stenosis of the aortic valve. Previous reports by others1 2 3 4 5 6 have dealt primarily with analysis of operative mortality by different approaches and subjective evidence of improvement in survivors. The purpose of this report is to describe our initial experiences in surgical treatment with improved instrumentation, and to evaluate early results by both subjective and objective criteria.Methods and MaterialFifteen patients underwent aortic-valve surgery by one of us (K.A.M.) utilizing a transventricular approach with a modified Bailey dilator. The chief modification of this instrument (Fig. 1) is the small size . . .

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