valvotomy

[văl-vŏtə-mē]

n.

The surgical cutting of a constricted cardiac valve to relieve obstruction.valvulotomy
An incision into a valvular structure.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.