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  • Title: Aneurysmal Subarachnoid Hemorrhage with Spinal Subdural Hematoma: A Case Report and Systematic Review of the Literature.
    Author: Rothrock RJ, Li AY, Rumsey J, Fifi JT, Kellner CP, Roonprapunt C.
    Journal: World Neurosurg; 2019 Aug; 128():240-247. PubMed ID: 31103768.
    Abstract:
    OBJECTIVE: Spinal subdural hematoma (S-SDH) rarely occurs after aneurysmal subarachnoid hemorrhage (SAH). Little information is known regarding the management and prognosis of patients with both S-SDH and SAH. Here, we present an illustrative case and provide a systematic review of S-SDH in the setting of SAH. METHODS: A systematic literature review using Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines revealed 11 previous cases of concurrent intracranial SAH and spinal SDH, which are presented with our new reported case. RESULTS: Intracranial sources of spontaneous SAH included 8 aneurysms, 1 pseudoaneurysm, and 3 angiogram-negative cases. Hunt Hess grades ranged from 1 to 4, mean time between SAH and S-SDH was 5.8 days, and S-SDH presented most frequently in the lumbar spine. Eight patients showed significant to complete clinical recovery, 2 had continued plegia of the lower extremities, and 2 expired. Modified Rankin scores (mRS) ranged from 0 to 6, with mRS >2 for 4 of 12 patients. Patients with a poor clinical outcome (mRS >2) had an initially negative cerebral angiogram, earlier presentation with less time between SAH and S-SDH (0.8 vs. 7.6 days), use of antithrombotic medication, no diversion of cerebrospinal fluid, and cervical or thoracic S-SDH. CONCLUSION: S-SDH is uncommon in the setting of aneurysmal SAH; better outcomes are associated with lumbar location, delayed presentation, cerebrospinal fluid diversion, and lack of antithrombotic use. Conservative treatment may be sufficient in patients with delayed S-SDH and lack of significant neurologic deficits. More reported cases will allow greater understanding of this clinical entity.
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