Aim of the study is to evaluate whether the integration of the 2017 ESA guidelines for treatment of postoperative Delirium in a pain management, can improve patient's wellbeing in comparison to the current certified standard management. Adherence to the modified management includes minimizing nil per os time, renouncing benzodiazepines, 1.8 ltr crystalloid infusion per day, simplified standard medication option and postoperative 12µg/h Fentanyl TTS for 72h (for wound pain).
Aim of the study is an examination whether a modified perioperative pain management system, that integrates the 2017 European Society of Anaesthesiology (ESA) guidelines for treatment of postoperative Delirium, can improve patient's wellbeing in comparison to the current certified standard management.