Thirty-Day Mortality and Survival in Elderly Patients Undergoing Neurosurgery
Abstract INTRODUCTION With an ageing population and advances in neuroanaesthesia and critical care, there is an increasing subgroup of patients greater than 70 yr of age presenting to neurosurgical departments and undergoing surgery. We are now moving towards the idea of a frailty index. The aim of the current study is to investigate 30-d mortality and survival in this cohort following emergency and elective neurosurgery. METHODS Retrospective cohort study. All patients aged 70 yr and above, who had undergone a neurosurgical procedure from April 2015 to April 2017 were identified. Online patient electronic records were retrieved to gather information related to procedure type, co-morbidities, days in hospital, discharge destination, complications and mortality. Logistic regression analysis was used to identify predictors of mortality. RESULTS A total of 798 patients in total of whom 623 were <80 yr (group A) and 175 were >80 yr (group B). Male : Female = 3 : 1. Mean age of the study was 76 yr. There were 390 elective and 408 emergency admissions. Overall 30-d mortality = 5.6% (8% in group B). Overall survival was 86.5% in group A and 79.4% in group B. There was a significant difference in 30-d mortality between elective (0.8%) and emergency (10.3%) patients. About 84.5% of patients were discharged back to their usual place of residence in group A but this figure was 68.9% for group B. Logistic regression found emergency surgery (P > .001) and degenerative spine diagnosis to be independent predictors of mortality (P = .05). CONCLUSION The current model for accepting elderly patients is associated with a good overall outcome. The elderly should not be refused neurosurgery on their age per se. We have applied fairly strict and stringent criteria particularly in SAH and TBI.