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Morbidity and Mortality in Patients Undergoing Mitral Valve Replacement at a Cardiovascular Surgery Referral Service:

Júlia Lasserre Moreira1, Pedro Henrique Andrade Araújo Salvatore Barletta1, José Augusto Baucia2

  • 1Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Bahia, Brazil.

Brazilian Journal of Cardiovascular Surgery
|December 28, 2020
PubMed

Insights

Predictors of death after mitral valve replacement include older age, reduced ejection fraction (EF), and mitral regurgitation (MR). These factors are crucial for improving patient outcomes in cardiovascular surgery.

Area of Science:

  • Cardiovascular Surgery
  • Cardiac Valve Surgery
  • Medical Research

Background:

  • Mitral valve replacement is a critical procedure for patients with severe mitral valve disease.
  • Identifying factors influencing outcomes is essential for surgical planning and patient management.

Purpose of the Study:

  • To identify predictors of morbidity and mortality in patients undergoing isolated mitral valve replacement.
  • To analyze the impact of preoperative, intraoperative, and postoperative factors on patient outcomes.

Main Methods:

  • Retrospective cohort study of 164 patients undergoing isolated mitral valve replacement (2011-2016).
  • Data collected from medical records, including demographics, diagnoses, and surgical details.
  • Statistical analysis using odds ratio (OR) and binary logistic regression.

Main Results:

  • Mortality rate was 6.7%; common complication was postoperative arrhythmias (19.5%).
  • Significant risk factors for death included endocarditis, reduced ejection fraction (EF) (<50%), and mitral regurgitation (MR).
  • Older age and lower preoperative hemoglobin levels were associated with increased mortality.

Conclusions:

  • Older age and reduced preoperative ejection fraction (EF) are significant predictors of death after mitral valve replacement.
  • Preoperative endocarditis and mitral regurgitation (MR) are also associated with increased postoperative mortality.
Abstract

Keywords:
AgedCardiovascular DiseasesEndocarditisHemoglobinsMedical RecordsMitral Valve InsufficiencyRheumatic DiseasesStroke Volume

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