Analysis of the Relationship Between the Concentration of the Brain Derived Neurotrophic Factor (BDNF) in Plasma, the Occurrence of BDNF Gene Polymorphism (Val66Met) and White Blood Cell Markers and the Incidence of Postoperative Central Nervous System Disorders in Patients Undergoing General Anesthesia for Cardiac Surgery With Extracorporeal Circulation

This study is aimed at finding a correlation between postoperative delirium occurrence, severity and duration after cardiac surgery and the level of brain-derived neurotrophic factor (BDNF) in plasma as a marker of brain injury induced by cardio-pulmonary by-pass and its association with genetic predisposition in patients undergoing coronary artery bypass grafting (CABG) carrying BDNF gene polymorphism (Val66Met).