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Incidence and timing of myocardial infarction after total joint arthroplasty

Rajiv Gandhi1, Danielle Petruccelli, Philip J Devereaux

  • 1Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada.

The Journal of Arthroplasty
|September 5, 2006
PubMed

Insights

Total joint arthroplasty (TJA) patients face a perioperative myocardial infarction (MI) risk, often occurring 3 days post-surgery. Discharge before this period may increase this risk, necessitating careful patient monitoring.

Area of Science:

  • Orthopedic Surgery
  • Cardiology
  • Anesthesiology

Background:

  • Total joint arthroplasty (TJA) is a common procedure.
  • Perioperative myocardial infarction (MI) is a significant complication following major surgery.
  • Understanding the incidence and timing of MI after TJA is crucial for patient safety.

Purpose of the Study:

  • To determine the incidence and timing of in-hospital myocardial infarction (MI) after total joint arthroplasty (TJA).
  • To identify risk factors associated with perioperative MI in TJA patients.

Main Methods:

  • Retrospective review of 3471 patients undergoing TJA (1479 hip, 1992 knee).
  • Analysis of in-hospital myocardial infarction (MI) events and their timing post-surgery.
  • Multivariate analysis to identify associated risk factors.

Main Results:

  • 63 patients (1.8%) experienced a perioperative MI.
  • The mean time to MI was 3 days post-surgery.
  • Increased age, BMI, bilateral TJA, diabetes, and ASA class 3 were significant risk factors.

Conclusions:

  • Perioperative MI is a notable complication after TJA, occurring around postoperative day 3.
  • Certain patient factors increase the risk of MI following TJA.
  • Discharging patients within 3 days of TJA may warrant reconsideration due to potential MI risk.