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Characteristics and short-term prognosis of perioperative myocardial infarction in patients undergoing noncardiac surgery: a cohort study. Devereaux, Philip Garutti Martínez, Ignacio Yusuf, Salim Background: Each year, millions of patients worldwide have a perioperative myocardial infarction (MI) after noncardiac surgery. Objective: To examine the characteristics and short-term outcome of perioperative MI. Design: Cohort study. (ClinicalTrials.gov registration number: NCT00182039) Setting: 190 centers in 23 countries. Patients: 8351 patients included in the POISE (PeriOperative ISchemic Evaluation) trial. Measurements: Four cardiac biomarker or enzyme assays were measured within 3 days of surgery. The definition of perioperative MI included either autopsy findings of acute MI or an elevated level of a cardiac biomarker or enzyme and at least 1 of the following defining features: ischemic symptoms, development of pathologic Q waves, ischemic changes on electrocardiography, coronary artery intervention, or cardiac imaging evidence of MI. Results: Within 30 days of random assignment, 415 patients (5.0%) had a perioperative MI. Most MIs (74.1%) occurred within 48 hours of surgery; 65.3% of patients did not experience ischemic symptoms. The 30-day mortality rate was 11.6% (48 of 415 patients) among patients who had a perioperative MI and 2.2% (178 of 7936 patients) among those who did not (P < 0.001). Among patients with a perioperative MI, mortality rates were elevated and similar between those with (9.7%; adjusted odds ratio, 4.76 [95% CI, 2.68 to 8.43]) and without (12.5%; adjusted odds ratio, 4.00 [CI, 2.65 to 6.06]) ischemic symptoms. Limitation: Cardiac markers were measured only until day 3 after surgery, and additional asymptomatic MIs may have been missed. Conclusion: Most patients with a perioperative MI will not experience ischemic symptoms. Data suggest that routine monitoring of troponin levels in at-risk patients is needed after surgery to detect most MIs, which have an equally poor prognosis regardless of whether they are symptomatic or asymptomatic. 2024-02-01T08:33:27Z 2024-02-01T08:33:27Z 2011 journal article Devereaux PJ, Xavier D, Pogue J, Guyatt G, Sigamani A, Garutti I, Leslie K, Rao-Melacini P, Chrolavicius S, Yang H, Macdonald C, Avezum A, Lanthier L, Hu W, Yusuf S; POISE (PeriOperative ISchemic Evaluation) Investigators. Characteristics and short-term prognosis of perioperative myocardial infarction in patients undergoing noncardiac surgery: a cohort study. Ann Intern Med. 2011 Apr 19;154(8):523-8. doi: 10.7326/0003-4819-154-8-201104190-00003. PMID: 21502650. 0003-4819 10.7326/0003-4819-154-8-201104190-00003 https://hdl.handle.net/20.500.14352/97463 0003-4819 https://doi.org/10.7326/0003-4819-154-8-201104190-00003 21502650 https://www.acpjournals.org/doi/10.7326/0003-4819-154-8-201104190-00003?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmed https://pubmed.ncbi.nlm.nih.gov/21502650/ eng PI07/1071 restricted access American College of Physicians