Mitral valve replacement combined with coronary artery bypass graft surgery in patients with moderate-to-severe ischemic mitral regurgitation.

  • Sa M
  • Soares E
  • Santos C
 et al. 
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INTRODUCTION: Ischemic mitral regurgitation (IMR) is associated with increased mortality. Even after coronary artery bypass grafting (CABG), IMR reduces survival. Several studies have shown increased perioperative mortality for mitral valve replacement (MVR) in this situation, but the subject remains controversial. OBJECTIVE: To investigate the impact of MVR on immediate outcomes in patients with moderate-to-severe IMR undergoing concomitant CABG compared with those undergoing CABG only. METHODS: We performed a retrospective study of 42 patients undergoing CABG+MVR (n=16) or CABG only (n=26) at the Division of Cardiovascular Surgery of PROCAPE, between May 2007 and April 2010. Preoperative clinical characteristics, procedural characteristics, major and minor complications after surgery, preoperative and postoperative left ventricular ejection fraction (LVEF) by echocardiography, and outcome (survivor or death) were assessed. RESULTS: Mean patient age was 63.4 +/- 8.5 years, and 64.8% (n=23) were male. The CABG+MVR group showed lower rates of postoperative low cardiac output (6.3% vs. 42.3%, p=0.014) and atrial fibrillation (6.3% vs. 38.5%, p=0.021). Both groups had higher mean LVEF in the postoperative compared with the preoperative period, but the average gain in LVEF in the CABG+MVR group was higher than in the CABG-only group (8.88 +/- 2.39 vs. 4.31 +/- 1.23, p

Author-supplied keywords

  • Coronary Artery Bypass
  • Coronary Disease
  • Female
  • Heart Valve Prosthesis Implantation
  • Humans
  • Male
  • Middle Aged
  • Mitral Valve Insufficiency
  • Retrospective Studies
  • Severity of Illness Index
  • complications
  • surgery

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  • Michel Pompeu B O Sa

  • Evelyn F Soares

  • Cecilia A Santos

  • Omar J Figueiredo

  • Renato O A Lima

  • Rodrigo R Escobar

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