The risk factors for cognitive dysfunction in elderly patients after laparoscopic surgery: A retrospective analysis

Postoperative cognitive dysfunction (POCD) is very common in clinical settings, it is necessary to analyze the risk factors for POCD in elderly patients after laparoscopic surgery to provide insights into clinical surgery management.Elderly patients undergone laparoscopy between September 1, 2018 and March 31, 2020 were included. The mini-mental state examination (MMSE) scale was used to evaluate the POCD, and the characteristics and clinical data of patients with and without POCD were collected and compared. Logistic regression was used to analyze the potential influencing factors.A total of 572 patients with laparoscopic surgery were included. The incidence of POCD was 11.89%. There were significant differences in the history of cerebral infarction, preemptive analgesia, preoperative use of dexmedetomidine, general anesthesia combined with continuous epidural block, duration of surgery, low SpO₂ during anesthesia induction, PaCO₂ after pneumoperitoneum, postoperative PCEA and VAS score at the third day after operation (all P < .05). Logistic regression analysis revealed that history of cerebral infarction (OR3.12, 1.02∼5.13), low SpO₂ during anesthesia induction (OR2.03, 1.19∼4.47), Longer duration of surgery (OR1.82, 1.01∼3.16) were risk factors for POCD in elderly patients with laparoscopic surgery, while postoperative PCEA (OR0.43, 0.01∼0.91), General anesthesia combined with continuous epidural block (OR0.59, 0.04∼0.87), preoperative use of dexmedetomidine (OR0.70, 0.08∼0.94) and preemptive analgesia (OR0.75, 0.13–0.90) were the protective factors for POCD in elderly patients with laparoscopic surgery.For the elderly patients undergoing laparoscopic surgery, the health care providers should be fully alert to the POCD based on those relevant factors.