Clinical Research Directory

Anesthesia Induced Myocardial Injury in Non-cardiac Surgery (AIMY)

Sponsor: University Hospital Tuebingen

Summary

Myocardial injury during non-cardiac surgery (PMI) affects up to 16% of high-risk patients and represents a significant burden on healthcare systems. An acute myocardial infarction is defined by a dynamic increase in cardiac troponin (cTn) above the 99th percentile and is accompanied by clinical signs of myocardial ischemia. Myocardial injury, on the other hand, is characterized by an increase in cardiac troponin, but without meeting the diagnostic criteria for myocardial infarction. In the perioperative interval, however, it is irrelevant whether a myocardial infarction according to the universal definition or merely an increase in troponin is present, as there is no difference in mortality between the two patient groups. The comprehensive study by Botto et al. provides valuable insights into the severity of MINS and found that 8.0% of patients met the diagnostic criteria. An important finding of this study is that the majority of MINS cases (87.1%) occurred within the first two days after surgery, highlighting the immediate risk of the condition (Botto et al., 2014). We would like to emphasize the necessity of our prospective, multicenter observational study by highlighting anesthesia-dependent variables such as hemodynamics, type of medication, their potential role, and surgical aspects such as duration of surgery, which represent risk factors for MINS. Identifying and understanding modifiable and non-modifiable risk factors is essential for targeted preoperative intervention. Understanding these factors is crucial for subsequent interventional studies and can also provide criteria for increased monitoring of high-risk patients, as suggested in the current guidelines.

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