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Published in: BMC Anesthesiology 1/2020

Open Access 01-12-2020 | Arterial Occlusive Disease | Research article

Preoperative assessment of cognitive function and risk assessment of cognitive impairment in elderly patients with orthopedics: a cross-sectional study

Authors: Shuyuan Gan, Yang Yu, Jiateng Wu, Xiaodong Tang, Yueying Zheng, Mingcang Wang, Shengmei Zhu

Published in: BMC Anesthesiology | Issue 1/2020

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Abstract

Background

Preexisting cognitive impairment is emerging as a predictor of poor postoperative outcomes in seniors. Nevertheless, cognitive impairment in a large proportion of geriatric patients has not been well identified and diagnosed.

Methods

This is a cross-sectional study. Mini-mental state examination scale was used to assess the cognitive function of elderly patients aged ≥65 years undergoing orthopedic surgery preoperatively. The baseline, living habits and laboratory examination results of two groups were compared, and a multivariable logistic regression model was used to identify independent predictors of preoperative cognitive impairment.

Results

A total of 374 elderly patients with orthopedic surgery indications met the inclusion criteria, and 28.61% of them had preoperative cognitive impairment. Multivariable logistic regression analysis showed that age (OR = 1.089, P < 0.001), subjective sleep disorders (OR = 1.996, P = 0.021), atherosclerosis (OR = 2.367, P = 0.017), and high cholesterol level (OR = 1.373, P = 0.028) were independent risk factors for preoperative cognitive impairment, while high education level performed as a protective factor (compared with the illiterate group, primary school group: OR = 0.413, P = 0.009; middle school or above group: OR = 0.120, P < 0.001).

Conclusions

The prevalence of preoperative cognitive dysfunction in geriatric elective orthopedic surgical patients was high. Our study identified venerable age, low level of education, subjective sleep disorders, atherosclerosis, and high cholesterol level as risk factors for preoperative cognitive impairment in these patients. Understanding these risk factors contributes to assisting in prevention and directed interventions for the high-risk population.
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Metadata
Title
Preoperative assessment of cognitive function and risk assessment of cognitive impairment in elderly patients with orthopedics: a cross-sectional study
Authors
Shuyuan Gan
Yang Yu
Jiateng Wu
Xiaodong Tang
Yueying Zheng
Mingcang Wang
Shengmei Zhu
Publication date
01-12-2020
Publisher
BioMed Central
Published in
BMC Anesthesiology / Issue 1/2020
Electronic ISSN: 1471-2253
DOI
https://doi.org/10.1186/s12871-020-01096-6

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