POCD After Major Gynecologic Surgery (POCD-GYN)

This prospective observational cohort study aims to investigate the incidence of early postoperative cognitive dysfunction (POCD) and associated perioperative risk factors in adult patients undergoing major gynecological surgery under general anesthesia. Eligible patients undergoing total abdominal hysterectomy and/or bilateral salpingo-oophorectomy through open or laparoscopic approaches will be included. Cognitive function will be evaluated using the Turkish version of the Montreal Cognitive Assessment (MoCA) before surgery and again on postoperative day 3 (±1 day). POCD will be defined as either a relative decline of ≥20% from baseline MoCA score or an absolute decrease of ≥2 points. Demographic characteristics, frailty status, menopausal status, hematologic-inflammatory markers including hemoglobin, RDW, and neutrophil-to-lymphocyte ratio, as well as intraoperative hemodynamic and surgical variables, will be recorded. The associations between these perioperative factors and POCD development will be analyzed. The findings may help identify high-risk patients preoperatively and contribute to individualized perioperative neuroprotective strategies.