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| Influence factors of postoperative delirium after orthopaedic surgery in older adults |
| LI Min LIU Di CHENG Xiangyang LIANG Qisheng |
| Department of Anesthesiology, the First Affiliated Hospital of Bengbu Medical College, Anhui Province, Bengbu 233004, China |
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Abstract Objective To study the influence factors of postoperative delirium in olderly patients with artificial joint replacement, so as to provide basis for effective prevention and treatment of postoperative delirium in elderly patients. Methods A total of 151 cases of artificial joint replacement patients undergoing prosthetic replacement surgery at the Department of Orthopedics of the First Affiliated Hospital of Bengbu Medical College from October 2018 to August 2019 were selected as the subjects. The frailty scale was used to measure the frailty of the patients before surgery, and the age, sex, anxiety score (APAIS), Charlson comorbidities index (CCI), daily activity score (ADL), albumin level, American Society of Anesthesiology grading (ASA) and other general data were recorded. Patients with postoperative delirium were screened out according to delirium scale (CAMCR). The patients were divided into the postoperative delirium group and the non-postoperative delirium group, and risk factors of postoperative delirium were analyzed. Results There were 37 cases in the postoperative delirium group and 114 cases in the non-postoperative delirium group. The incidence of postoperative delirium was 24.5%. Compared with the non-postoperative delirium group, the postoperative delirium group was older, the preoperative anxiety score was higher, the Charlson score was higher, the ADL score was lower, and the numbers of debilitating was more, the differences were statistically significant (all P ＜ 0.05). Binary regression analysis showed that weakness, anxiety, co-existence of various diseases and decreased ability of daily activities were independent risk factors for postoperative delirium (P ＜ 0.05). Conclusion Frailty, anxiety, comorbidities and decreased ability of daily activities are independent influence factors for postoperative delirium in elderly patients undergoing artificial joint replacement.
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