• Alankrita Raghavan, Gabriel Smith, Louisa Onyewadume, Matthew R Peck, Eric Herring, Jonathan Pace, Matt Rogers, Hasina Momotaz, Seth Alan Hoffer, Yin Hu, Hongyan Liu, Curtis Tatsuoka, Martha Sajatovic, and Andrew E Sloan.
• Case Western Reserve University School of Medicine, Cleveland, Ohio, USA.
• World Neurosurg. 2020 Feb 1; 134: e196-e203.

BackgroundChronic subdural hematomas (cSDHs) are common neurosurgical pathological entities and typically occur after trauma in elderly patients. The 2 most commonly used strategies for treatment have included burr hole drainage and craniotomy with decompression. However, the choice of these procedures has remained controversial and has been primarily determined by surgeon preference. We designed a matched-cohort analysis to compare these 2 procedures and identify the risk factors associated with the postoperative outcomes. Thus, we compared the rates of reoperation and mortality for patients who had undergone craniotomy versus burr hole evacuation for cSDH.MethodsA retrospective review examining the data from 299 consecutive patients with cSHDs from 2002 to 2015 was performed. We compared the following endpoints between the 2 procedures: 30-day mortality, discharge to a skilled nursing facility, and the need for reoperation. We also compared the potential risk factors in the patients with different primary outcomes.ResultsPatients undergoing craniotomy had a decreased need for reoperation compared with patients treated with burr hole evacuation (7.5% vs. 15.7%; P = 0.044). Older age was associated with both increased disposition to a nursing facility and increased 30-day mortality in both groups. Increased 30-day mortality was associated with aspirin usage in patients who had undergone craniotomy and with warfarin (Coumadin) in patients who had undergone burr hole evacuation.ConclusionsOur study identified an increased need for reoperation for patients treated with burr hole evacuation compared with those undergoing craniotomy. Older age and low Glasgow coma scale scores were associated with worse outcomes in both groups. Certain methods of anticoagulation were also associated with worse outcomes, which varied between the 2 groups. We recommend that surgeons individualize the choice of procedure according to the specific patient characteristics with consideration of these findings.Copyright © 2019. Published by Elsevier Inc.

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