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Related Experiment Videos

Preoperative cardiac evaluation.

Kyung W Park1

  • 1Department of Anaesthesia and Critical Care, Harvard Medical School, and Vascular Anesthesia, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 01890, USA. kpark@caregroup.harvard.edu

Anesthesiology Clinics of North America
|June 9, 2004
PubMed
Summary
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Preoperative cardiac testing may become unnecessary for many patients due to beta-blocker use. New guidelines suggest focusing on clinical factors to identify high-risk individuals, potentially simplifying cardiac evaluation.

Area of Science:

  • Cardiology
  • Clinical Medicine

Background:

  • Current guidelines from the American College of Cardiology and American Heart Association recommend cardiac evaluations before surgery.
  • Beta-adrenergic blockade administered perioperatively can decrease cardiac complication rates.

Purpose of the Study:

  • To evaluate the impact of perioperative beta-blockade on the utility of preoperative cardiac testing.
  • To explore a potential shift in the paradigm of preoperative cardiac evaluation.

Main Methods:

  • The study reviews existing guidelines and research on preoperative cardiac evaluation and beta-blocker therapy.
  • Analysis of how beta-blocker use affects the predictive value of cardiac tests.

Main Results:

  • Perioperative beta-blockade reduces the positive predictive value and likelihood ratio of preoperative cardiac tests.

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  • This favorably shifts the risk-benefit ratio of testing and subsequent interventions.

    • Conclusions:

    • A new approach to preoperative cardiac evaluation may be emerging.
    • Cardiac testing might be reserved only for the highest-risk patients identified through clinical variables.