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Chapter-52 Percutaneous Mitral Valvotomy in Mitral Restenosis

BOOK TITLE: Percutaneous Mitral Valvotomy

Author
1. S Harikrishnan
2. Nair Krishnakumar
ISBN
9789352701926
DOI
10.5005/jp/books/14152_53
Edition
2/e
Publishing Year
2018
Pages
11
Author Affiliations
1. Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), Thiruvananthapuram, Kerala, India, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India, Sree Chitra Tirunal Institute for Medical Sciences and Technology Thiruvananthapuram, Kerala, India, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India, Sree Chitra Tirunal Institute for Medical, Sciences and Technology, Trivandrum, Kerala, India, Sree Chitra Tirunal Institute for Medical Sciences & Technology (SCTIMST), Thiruvananthapuram, Kerala, India
2. Toronto General Hospital Toronto, Canada, University of Toronto, Toronto General Hospital, Canada
Chapter keywords
Percutaneous mitral valvotomy, PMV, mitral restenosis, MS, post-PMV, mitral valve replacement, MVR, closed mitral valvotomy, CMV

Abstract

Post-percutaneous mitral valvotomy (PMV) mitral restenosis is defined as a valve area greater than 1.5 cm2 or a less than 50% loss of the initial gain in valve area. This definition itself is based on the definition of a successful PMV (post-PMV MVA >1.5 cm2 and MR <2/4) which itself is binary and arbitrary. The incidence of restenosis has been reported to range from 4–39% and progressive decrease of MVA overtime has been well documented. The prevalence depends on the definition of restenosis and on the duration of follow-up. The frequency of restenosis is difficult to assess due to many issues. Restenosis is a broad term that embraces a mixture of inadequate results, errors in MVA determination, very early (within days) area loss, true restenosis and disease progression. This chapter also discusses the predictors of restenosis, pathology, and management of PMV.

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