Postoperative maximum troponin T concentration
Time frame · First five postoperative days
Levosimendan improves myocardial perfusion and might therefore reduce the postoperative maximum rise in TnT
Incidence of MINS (myocardial injury in non cardiac surgery)
Time frame · First three postoperative days
Levosimendan decreases the incidence of MINS during the first 3 postoperative days as compared to placebo in patients with increased cardiovascular risk factors undergoing moderateto high-risk noncardiac surgery. MINS is defined as: (i) a non-high-sensitivity troponin T \>\_30ng/L2 and (ii) a high-sensitivity troponin T (hsTnT) of 20 to \<65 ng/L with an absolute change of at least 5 ng/L-this change threshold is independently associated with 30-day mortality \[hazard ratio (HR) 4.69; 95% confidence interval (CI) 3.52-6.25\]-or an hsTnT level \>\_65ng/ L. Furthermore, an absolute change of at least 5 ng/L is independently associated with 30-day mortality and will also be defined as MINS. TnT will be measured within 2 hours after surgery, on the first, second and third postoperative day.
Myocardial Infarction
Time frame · 30 days and 1 year after surgery
Levosimendan reduces the event rates of myocardial infarction and death during 30 days and 1 year after surgery as compared to placebo. Myocardial infarction is defined as a rise of TnT at least one value is above the 99th percentile URL and with at least one of the following: (i) symptoms of acute myocardial ischaemia; (ii) new ischaemic ECG changes; (iii) development of pathological Q waves; (iiii) imaging evidence of new loss of viable myocardium; (v) new regional wall motion abnormality in a pattern consistent with an ischemic ethiology; (vi) identification of a coronary thrombus by angiography including intracoronary imaging or autopsy.
Disability
Time frame · 30 days and 1 year after surgery
We evaluate the WHODAS 2.0 score before surgery on the day of consent, 30 days after surgery, and 1 year after surgery per phone call. For analyzing we use simply scoring. Each score is assigned to each of the following items - "none" (0), "mild" (1), "moderate" (2), "severe" (3), and "extreme (4).
We will simply add up the scores from the items without recoding or collapsing of response categories, thus, there is no weighting of the individual items. As a result, the simple sum of the scores of the items across all domains constitutes a statistic that is sufficient to describe the degree of functional limitations.
NT-proBNP Mortality
Time frame · 30 days and 1 year after surgery
Perioperative NT-proBNP elevations are associated with postoperative mortality, cardiac mortality, mortality and nonfatal MI, and cardiac failure at both 30 days and 180 days or more after surgery.
NT-proBNP values have been stratified to the previous published thresholds to predict mortality or MI after surgery.