Decreased Time to Evacuation Improves Long Term Functional Outcome in Minimally Invasive Endoscopic Intracerebral Hemorrhage Evacuation

Abstract

INTRODUCTION: Preclinical and preliminary clinical data suggests that early minimally invasive intracerebral hemorrhage evacuation may convey a functional outcome benefit. Ongoing clinical trials permit an operative window extending out to 72 h. Here we present long term functional outcome after MIS endoscopic ICH evacuation with a focus on time to evacuation. METHOD(S): Minimally invasive endoscopic ICH evacuation was performed on patients with supratentorial ICH who fit previously published clinical criteria including age = 18, National Institutes of Health Stroke Scale (NIHSS) = 6, hematoma volume = 15, and baseline modified Rankin Score (mRS) = 3 with a CTA negative for vascular malformation. Retrospective review was performed on patients who were treated in a single health system from December 2015 to August 2018.Demographic, clinical and radiographic previously demonstrated to impact ICH outcome were included in a multivariate logistic regression to identify factors predicting poor outcome (modified Rankin scale (mRS) 4-6) at 6 mo. RESULT(S): A total of 97 patients underwent minimally invasive endoscopic ICH evacuation. In a multivariate analysis, factors that predicted poor outcome included age (OR 1.81 (CI 1.15-3.08) P = .016), deep location (OR 11.1 (2.41-67.8) P = .004), presence of intraventricular hemorrhage (OR 5.81 (1.765-22.39) P = .006) and increased time to evacuation measured in hours (OR 1.048 (CI 1.017- 1.084) P = .004). CONCLUSION(S): Time to evacuation significantly impacts long term outcome in minimally invasive endoscopic ICH evacuation. Every minute counts.