P16 Relation of timing of surgery to outcome from traumatic acute subdural haematoma

Abstract

ObjectivesAcute subdural haemorrhage (ASDH) is a neurosurgical emergency with high mortality and morbidity rates. Time to surgical intervention is implicated as an important factor affecting patient outcomes, however, more recent studies do not support this. We aimed to determine the correlation between time interval to surgery and outcome of patients with traumatic ASDH.MethodsWe retrospectively reviewed consecutive ASDH patients who underwent haematoma evacuation in the period between 2010 and 2016 at this tertiary neurosurgical centre. 49 patients were included for the analysis. Patient data was extracted from theatre records, patient notes and electronic records.ResultsThe median time interval from injury to surgery was 403 min (6 hours 43 min) with road traffic accident being the commonest mechanism of injury. 20 of 49 (34.7%) patients underwent evacuation within five hours from time of injury. Of these, 12 (41.4%) had good recovery (GOS 5), versus 15 (51.7%) amongst the 29 patients who underwent operation after five hours. Spearman rank correlation test (rs=0.07375) showed no statistically significant correlation between time interval to surgery and patient outcomes as measured by GOS. The overall mortality rate of evacuated patients at JCUH was 8.16% and the majority had good functional status, 55.1% with GOS 5.ConclusionsLonger time interval of more than four hours from injury to surgical intervention was not associated with higher mortality rate, or worse functional outcome.