Predicting peri-operative troponin elevation by advanced electrocardiography.

Area of Science:

• Cardiology
• Cardiovascular Surgery
• Medical Diagnostics

Background:

• Peri-operative mortality is a significant global health concern.
• Improved pre-operative risk assessment is crucial for enhancing surgical outcomes.
• Identifying patients at high risk for peri-operative myocardial injury is a key challenge.

Purpose of the Study:

• To evaluate the predictive capability of pre-operative advanced electrocardiography (A-ECG) measures for elevated serum troponin T (TnT).
• To assess the utility of A-ECG in patients undergoing elective, major non-cardiac surgery.
• To determine if A-ECG can identify patients at risk for peri-operative myocardial injury.

Main Methods:

• An observational cohort study of 257 patients undergoing elective major non-cardiac surgery.
• Pre-operative digital 12-lead ECGs were analyzed using validated A-ECG scores.
• Patients were categorized based on post-operative high-sensitivity cardiac troponin T (hs-cTnT) levels (>14 ng l⁻¹).
• Exclusion of specific A-ECG confounders to focus on predictive scores.

Main Results:

• Pre-operative A-ECG detection of left ventricular systolic dysfunction (LVSD) was significantly more probable in patients who experienced peri-operative myocardial injury (p = 0.03).
• A-ECG scores for LVSD could differentiate between patients with and without elevated peri-operative TnT levels.

Conclusions:

• Pre-operative A-ECG, specifically LVSD scores, shows potential in identifying patients with elevated peri-operative troponin T levels.
• Despite differentiating capability, A-ECG did not provide additional predictive value over standard clinical parameters for troponin-related events in this cohort.