• World Neurosurg · Jan 2021

    Outcomes After Decompressive Craniectomy for Ischemic Stroke: A Volumetric Analysis.

    • Jonathan M Parish, Anthony M Asher, Deborah Pfortmiller, Mark D Smith, Jonathan D Clemente, William R Stetler, and Joe D Bernard.
    • Department of Neurological Surgery, Carolinas Medical Center, Charlotte, North Carolina, USA. Electronic address: john.parish@cnsa.com.
    • World Neurosurg. 2021 Jan 1; 145: e267-e273.

    BackgroundDecompressive hemicraniectomy (DHC) is a treatment of space-occupying hemispheric infarct. Current surgical guidelines use criteria of age <60 years and surgery within 48 hours of stroke onset.ObjectiveThe purpose of this study was to evaluate the neurologic outcome after DHC and evaluate the relationship of stroke volume and outcomes.MethodsA retrospective review was performed of patients undergoing DHC for cerebral infarct from 2016 to 2019. Unfavorable outcome was defined as modified Rankin Scale (mRS) score >3. Patients with precraniectomy magnetic resonance imaging were selected as a subset for volumetric stroke volume analysis using RAPID software (iSchemaView, Redwood City, California), with stroke volume defined as apparent diffusion coefficient <620 on diffusion-weighted imaging.ResultsFifty-two patients met the inclusion criteria. At 90 days, favorable outcome was achieved in 11 patients (21.2%), and 41 patients (78.8%) had unfavorable outcomes (15 [29%] died). Surgery after 48 hours, age >60 years, and multivessel distribution did not significantly affect 90-day mRS score (P = 0.091, 0.111, and 0.664, respectively). In volumetric subset analysis, 10 patients of 41 (31.3%) achieved favorable outcomes, and no patients with volume of infarct >280 mL had a favorable outcome. There was a trend of lower volumes associated with favorable outcomes, but this did not meet significance (favorable 207 ± 68.7 vs. unfavorable 262 ± 117.1; P = 0.163).ConclusionsOutcomes after DHC for malignant hemispheric infarct were not affected by current accepted guidelines. Volume of infarct may have an effect on outcome after DHC. Further research to aid in predicting which patients benefit from decompressive craniectomy is warranted.Copyright © 2020 Elsevier Inc. All rights reserved.

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