INVESTIGATE THE ASSOCIATION BETWEEN VIRAL NEUROTOXIC INFECTION AND POSTOPERATIVE DELIRIUM AND POSTOPERATIVE COGNITIVE DECLINE

The preoperative viral screening protocol will start with a self-assessment questionnaire that will be provided to all the enrolled patients, where they will be asked to indicate previously SARS-CoV-2, HPV, EBV, CMV infections. Collection of peripheral blood mononuclear cells (PBMCs) from blood samples and serum specimens for the virological screening (HPV, EBV, CMV, SARS-CoV-2). Preoperative MoCA assessment, follow-up 5 days, 3 months and 6 months after the surgery.