5-Lead Electrocardiogram Monitoring to Detect Perioperative Myocardial Infarction, Noncardiac Surgery Patients

Perioperative myocardial infarction (MI) can have a mortality rate upward of 25%. The 5-lead electrocardiogram (ECG) is one of the standard basic anesthesia monitors.1 The V5 lead is the most sensitive lead of the ECG for detecting MI.2 The diagnosis of MI usually requires an elevation in the cardiac troponin concentrations above the 99th percentile with a rising or falling pattern accompanied by clinical evidence of acute myocardial ischemia. We hypothesize that 5-lead ECG ST analysis has low sensitivity and specificity for MI in noncardiac surgery.
Source: Mayo Clinic Proceedings - Category: Internal Medicine Authors: Tags: Letter to the editor Source Type: research