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Published on: January 27, 2010
Risk stratification and predictive modeling of postoperative delirium in chronic subdural hematoma
Xuan Yang1, Moksada Regmi2,3,4, Yingjie Wang2,3
1Beijing Key Laboratory of Intraocular Tumor Diagnosis and Treatment, Beijing Ophthalmology & Visual Sciences Key Lab, Medical Artificial Intelligence Research and Verification Key Laboratory of the Ministry of Industry and Information Technology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China.
Postoperative delirium in elderly patients undergoing chronic subdural hematoma surgery is linked to restraint belt use and electrolyte imbalance. These factors, along with midline shift and visual analog scale scores, are key predictors for delirium risk.
Area of Science:
- Neurosurgery
- Geriatrics
- Critical Care Medicine
Background:
- Postoperative delirium is a frequent complication in elderly patients, increasing morbidity and hospital stay.
- Risk factors for delirium in chronic subdural hematoma (CSH) patients remain understudied.
- CSH is a significant concern in geriatric neurosurgery.
Purpose of the Study:
- To identify independent risk factors for postoperative delirium in patients with chronic subdural hematoma.
- To develop predictive models for delirium risk in this patient population.
Main Methods:
- A cohort of 202 consecutive CSH patients was analyzed retrospectively.
- Univariate and multivariate regression analyses were employed to identify significant risk factors.
- Nomogram and Markov chain models were developed for delirium risk prediction.
Main Results:
- Postoperative delirium occurred in 31.2% of the studied patients.
- Multivariate analysis identified restraint belt use, electrolyte imbalance, visual analog scale score, and midline shift as independent predictors of delirium.
- Factors like age and hematoma thickness were not significant predictors in multivariate analysis.
Conclusions:
- Restraint belt use, electrolyte imbalance, elevated visual analog scale scores, and increased midline shift are significant risk factors for delirium after CSH surgery.
- The developed prediction models may aid in assessing and managing delirium risk in CSH patients.

