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Redo mitral valve surgery-a long-term experience.

Arkalgud Sampath Kumar1, Jayesh Dhareshwar, Balram Airan

  • 1Cardiothoracic Centre, All India Institute of Medical Sciences, New Delhi, India. asampath_kumar@hotmail.com

Journal of Cardiac Surgery
|July 13, 2004
PubMed
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Reoperative mitral valve surgery is a safe procedure with acceptable outcomes. This study highlights the safety and efficacy of redo mitral valve surgery, even after previous interventions.

Area of Science:

  • Cardiovascular Surgery
  • Cardiac Surgery
  • Thoracic Surgery

Background:

  • Presents 27-year experience with reoperative mitral valve (MV) surgery.
  • Analyzes 744 reoperations for MV disease out of 11,908 total MV operations.

Purpose of the Study:

  • To evaluate the safety and outcomes of reoperative mitral valve surgery.
  • To assess mortality and morbidity associated with redo MV procedures.

Main Methods:

  • Retrospective analysis of 744 reoperations performed between January 1975 and June 2002.
  • Procedures included mitral valve replacement (MVR) after prior interventions and redo mitral valve repairs.
  • Reasons for reoperation included lesion progression, valve thrombosis, and endocarditis.

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Main Results:

  • Early mortality was 5.64%, with hemorrhage and low cardiac output as primary causes.
  • No late deaths occurred in the valve repair group; low thromboembolism rates (0.3% per patient-year).
  • Valve replacement group had six late deaths (valve thrombosis, endocarditis, hemorrhage) and higher thromboembolism rates (0.6% per patient-year).

Conclusions:

  • Redo mitral valve surgery is a safe and viable option.
  • Acceptable mortality and morbidity rates can be achieved with reoperative MV surgery.
  • Valve repair in the redo setting demonstrated excellent long-term outcomes with no late deaths.