Background: Increasing patient age is strongly associated with a rising incidence of traumatic brain injury (TBI) and a higher mortality and morbidity rates.
Objective: This study aimed to identify the predictors of mortality after craniotomy for TBI in elderly patients.
Material and methods: Data of all patients aged ≥65 years who underwent craniotomy for acute TBI, over a period from January 2015 to October 2019, were retrospectively reviewed. The standard clinical and imaging variables for TBI were recorded. The medical comorbidities, indication for surgery, and intraoperative complications were also recorded. The outcome of interest was survival at 6 months after surgery.
Results and conclusions: A total of 206 patients were available for analysis. The age of patients ranged from 65 to 80 years. The most frequent surgical procedure performed was craniotomy and evacuation of supratentorial subdural hematoma with or without evacuation of the traumatic parenchymal lesion. The in-hospital mortality was 46 out of 206 (22.3%), and 6 months mortality was 116 out of 206 (56.3%). Among the survivors at 6 months, good recovery was seen in 70.5%, moderate disability in 19.8%, and severe disability in 8.6% patients. Only 1.2% patients survived in a vegetative state at 6 months. The odds of death are nearly three times more for patients with dilated and nonreactive pupillary reaction. The odds of death are less by 72% for a unit increase in motor score. In older adults, the main determinants of survival after surgery for TBI are pupillary reaction and motor score.
Keywords: Craniotomy; geriatric; outcome; subdural hematoma; traumatic brain injury; traumatic parenchymal lesion.