annuloplasty

noun
an·nu·lo·plas·ty | \ˈan-yə-(ˌ)lō-ˌpla-stē \
plural annuloplasties

Medical Definition of annuloplasty 

: surgical treatment of a ringlike anatomical part specifically : surgical repair of a heart valve that typically involves reducing the diameter of the valve's fibrous ring Severe tricuspid regurgitation should clearly be repaired because it has been widely demonstrated that annuloplasty provides excellent late results with little added morbidity. — Charles F. Schwartz et al., in Schwartz's Manual of Surgery, 2006

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