Perioperative medicine & outcomes
Effect of a national guideline on postoperative troponin surveillance: a retrospective cohort study
Main finding · Troponin surveillanceResult — go to the resultOdds ratio 1.08 95% CI 1.02–1.15Authors' conclusion
Although the odds of troponin ordering were slightly but significantly higher after publication of the CCS guidelines, the odds for detecting an MI and for mortality did not change.
Study context
- Population
- Patients aged 40 yr or older undergoing intermediate- to high-risk elective noncardiac surgery, 2016–2021median age 63 yr
- Participants
- 36,386 patients
- Exposure
- Before vs after publication of 2017 Canadian Cardiovascular Society (CCS) guidelines
- 2016–2018n = 19,046reference
- 2019–2021n = 17,340
- Outcome
- Troponin surveillance (number and percentage of troponin tests ordered)
Methodological detailssingle-centre, observational, before-after
- Single-centre
- Observational
- Before-after
Main finding
Troponin surveillance
Odds ratio
1.08
95% CI 1.02–1.15
Events by group
2019–2021 vs 2016–2018
OR 1.08 (95% CI 1.02–1.15)
As reported in the abstract
Observational data: associations, not effects.
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
Effect of a national guideline on postoperative troponin surveillance: a retrospective cohort study. Can J Anaesth. Published 16 November 2023. doi:10.
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