Related Experiment Video
Updated: Sep 5, 2025
Minimally Invasive Endoscopic Intracerebral Hemorrhage Evacuation
Published on: October 15, 2021
Inversed probability case-control analysis of operative burr hole evacuation versus subdural evacuating port system
Arvind Mohan1, Samuel Malnik1, Clare Grady1
1Department of Neurosurgery, College of Medicine, University of Florida, 1505 SW Archer Rd, Gainesville, FL 32601, USA.
Introduction:
There are multiple treatments for a chronic subdural hematoma, a significant cause of neurosurgical morbidity that cost the healthcare system $5B in 2007, but few generalizable prospective studies. The purpose of this study was to examine outcomes of bedside Subdural Evacuation Port System (SEPS) placement as compared to operating room burr hole evacuation (BHE) to acquire data to support a randomized trial.
Methods:
All procedures were performed in a single institution between 2011 and 2019. Patients were included if > 18 years of age, had chronic subdural hematoma, and were treated by SEPS or BHE. Patients with prior neurosurgical history, mass lesions or bilateral hematomas were excluded. Patients who met inclusion for SEPS (n = 55) or BHE (n = 105). Samples were propensity matched to account for variability. Non-inferiority tests compared outcomes. Cost data was obtained through billable charges.
Results:
Patients with multiple comorbidities were more likely to undergo SEPS drainage. Noninferiority tests reported no statistically significant evidence to suggest SEPS drains were worse in reoperation-rate (18% vs 9%), post-operative seizure, or functional outcome. SEPS drain placement trended towards a faster time to procedure (3 h faster; p = 0.07) but the overall hospital stay was longer (4.23 vs 5.81, p = 0.01). SEPS drain placement costs are less than BHE, but these patients had 25% higher overall hospital costs (p = 0.01) due to comorbidities and increased hospital stay.
