Additional file 1 Table S1. Microembolic signals, average maximal velocity in arteria cerebri media during surgery and values of serum IL 6. Table S2. Multiple linear regression model, showing predictors for total intraoperative count of microemboli as a dependent value. Table S3. Multiple linear regression with natural logarithm of IL 66 h after surgery as a dependent variable. Table S4. Binominal logistic regression with postoperative occurrence of delirium as a dependent variable. Estimates represent the log odds of “Delirium = 1” vs. “Delirium = 0”. Table S5. Multiple linear regression with ICU stay (days) as a dependent variable. Table S6. Result of postoperative cognitive function testing (number of points) as a depended variable in multiple linear regression model.