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Related Experiment Videos

Postsurgical mediastinitis: a case-control study

P Muñoz1, A Menasalvas, J C Bernaldo de Quirós

  • 1Service of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón, Madrid, Spain.

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
|December 24, 1997
PubMed
Summary

Postsurgical mediastinitis (PSM) risk factors include reoperation, vasoactive drugs, coronary artery bypass graft surgery, and persistent fever. These factors significantly increase mortality risk in patients undergoing sternotomy.

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Area of Science:

  • Cardiovascular Surgery
  • Infectious Diseases
  • Critical Care Medicine

Background:

  • Postsurgical mediastinitis (PSM) is a serious complication following sternotomy.
  • Understanding risk factors is crucial for prevention and management.

Purpose of the Study:

  • To identify independent risk factors for developing PSM.
  • To determine independent risk factors for mortality in PSM patients.

Main Methods:

  • A case-control study was conducted between 1985 and 1993.
  • 73 cases of PSM and 73 controls were analyzed.
  • Univariate and multivariate analyses were employed to identify risk factors.

Main Results:

  • Independent risk factors for PSM included reoperation (RR, 9.2), vasoactive drugs (RR, 3.5), coronary artery bypass graft (CABG) surgery (RR, 3.2), and persistent fever (RR, 406).

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  • Mortality was 13.7%, with higher rates in PSM cases (17.7%) vs. controls (2.7%).
  • Independent risk factors for mortality were bacteremia (RR, 21.5), intraaortic balloon use (RR, 14.9), advanced age (RR, 1.14/year), and prolonged mechanical ventilation (RR, 1.1/day).

    • Conclusions:

    • Reoperation, vasoactive drug use, CABG surgery, and persistent fever are significant independent risk factors for PSM.
    • Bacteremia, intraaortic balloon use, advanced age, and prolonged mechanical ventilation are significant independent risk factors for mortality in PSM patients.