valvulotomy

noun
val·​vu·​lot·​o·​my | \ ˌval-vyə-ˈlät-ə-mē How to pronounce valvulotomy (audio) \
plural valvulotomies

Medical Definition of valvulotomy

: surgical incision of a valve specifically : the operation of enlarging a narrowed heart valve by cutting through the mitral commissures with a knife or by a finger thrust to relieve the symptoms of mitral stenosis

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