Abstract

Myocardial injury after non-cardiac surgery is due to ischaemia either during non-cardiac surgery or within 30 days after it. Our surveillance protocol includes hip fracture template and high-sensitivity troponin stratification, as recommended in European countries. Our retrospective study cohort included surgical patients for hip fracture at our hospital in Japan. The primary outcome was the rate of myocardial injury after non-cardiac surgery in comparison to patients managed with (213) and without (176) hip fracture template. The hip fracture template was used more in patients with myocardial injury after non-cardiac surgery than those without myocardial injury after non-cardiac surgery. When hip fracture template was used, patients had a higher likelihood of myocardial injury after non-cardiac surgery after adjusting for age, time to operation, diabetes mellitus, and chronic kidney disease (odds ratio 41.3; 95% confidence interval: 12.1, 259.6). Patients with myocardial injury after non-cardiac surgery had higher in-hospital mortality than those without myocardial injury after non-cardiac surgery, even in adjusted analysis. There was a high detection rate of myocardial injury after non-cardiac surgery when patients with hip fractures were managed with hip fracture template. Myocardial injury after non-cardiac surgery was associated with in-hospital mortality.

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