Perioperative medicine & outcomes

Association of preoperative beta-blocker use and cardiac complications after major noncardiac surgery: a prospective cohort study

Br J AnaesthPublished Prospective cohort study

Main finding · Cardiac PMIResult — go to the resultWeighted odds ratio 1.03 95% CI 0.94–1.12

Authors' conclusion

Preoperative use of beta-blockers was not associated with decreased cardiac complications including cardiac perioperative myocardial infarction or injury and major adverse cardiac event. Additionally, preoperative use of beta-blockers was not associated with increased all-cause death within 30 and 365 days.

Study context

Population
Consecutive patients at elevated cardiovascular risk undergoing major noncardiac surgerymean age 74 yr
Participants
10,272 patients
Exposure
Preoperative beta-blocker use vs no beta-blocker
  • Beta-blockersn = 3,839
Outcome
Perioperative MI or injury attributable to a cardiac cause (cardiac PMI)
Follow-up
First three postoperative days
Methodological detailsmulticentre, inverse probability of treatment weighting, central adjudication, Cardiac complications prospectively monitored and centrally adjudicated by two independent experts
  • Multicentre
  • Inverse probability of treatment weighting
  • Central adjudication
  • Cardiac complications prospectively monitored and centrally adjudicated by two independent experts

Main finding

Cardiac PMI

Weighted odds ratio

1.03

95% CI 0.94–1.12

P = 0.55

Beta-blockers vs No beta-blockers
weighted OR 1.03 (95% CI 0.94–1.12); P = 0.55

As reported in the abstract

Observational data: associations, not effects.

Secondary outcomes

OutcomeWeighted HR (95% CI)P value
MACE (MI, acute HF, life-threatening arrhythmia, cardiovascular death) · 365 days0.99 (0.83–1.18)P = 0.90
Major adverse cardiac events (MACE) (MI, acute HF, life-threatening arrhythmia, cardiovascular death) — MACE overall
971/10 272 (9.5%)

Original publication

Association of preoperative beta-blocker use and cardiac complications after major noncardiac surgery: a prospective cohort study. Br J Anaesth. Published 15 April 2024. doi:10.1016/j.bja.2024.02.023

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