Edge-to-edge (Alfieri) mitral repair: Results in diverse clinical settings

Sunil K. Bhudia, Patrick M. McCarthy*, Nicholas G. Smedira, Buu Khanh Lam, Jeevanantham Rajeswaran, Eugene H. Blackstone

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

167 Scopus citations

Abstract

Background Complex mitral regurgitation (MR) jets can make repair challenging; edge-to-edge (Alfieri) repair augments the repertoire of repair techniques. Objectives of this study were to demonstrate causes of MR amenable to edge-to-edge repair and to determine safety, obstructive potential, and durability of edge-to-edge repair. Methods From January 1997 to October 2001, 224 patients underwent Alfieri repair. Indications included ischemic cardiomyopathy (n = 143, 64%), myxomatous disease (n = 31, 14%), dilated cardiomyopathy (n = 27, 12%), and hypertrophic obstructive cardiomyopathy (n = 14, 6%). Concomitant ring annuloplasty was performed in 188 patients (84%). Two additional patients had takedown of an Alfieri repair in the operating room for obstruction. Preoperative MR was 4+ in 109 patients (50%) and 3+ in 65 (30%). Postoperative and follow-up mitral gradient and return of MR were assessed using 396 transthoracic echocardiograms and longitudinal analyses. Results Hospital mortality was 2% (5 of 224). Mitral valve mean gradient was low (3.7 mm Hg) and nonprogressive (p = 0.7), although peak gradient rose slightly, from mean 8.4 to 10.0 mm Hg (p = 0.01). During the first 3 postoperative months, absence of MR declined to 40%, and prevalence of 3+ MR increased to 14%, then rose slowly thereafter. Fourteen patients - 12 within 2 years - underwent mitral valve reoperation, none for stenosis; 7 patients - 6 within 2 years - underwent heart transplantation. Conclusions Alfieri mitral repair can be used in a variety of settings with a low risk of creating mitral stenosis. However, in ischemic MR, steadily increasing prevalence of moderately severe and severe regurgitation after edge-to-edge repair suggests other techniques are needed.

Original languageEnglish (US)
Pages (from-to)1598-1606
Number of pages9
JournalAnnals of Thoracic Surgery
Volume77
Issue number5
DOIs
StatePublished - May 1 2004

Keywords

  • 35

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Surgery

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