• Gregory D Arnone, Darian R Esfahani, Matt Wonais, Prateek Kumar, Justin K Scheer, Ali Alaraj, Sepideh Amin-Hanjani, Fady T Charbel, and Ankit I Mehta.
• Department of Neurosurgery, University of Illinois at Chicago, Chicago, Illinois, USA.
• World Neurosurg. 2017 Oct 1; 106: 543-550.

ObjectivePrimary cerebellar hemorrhage accounts for 10% of all intracranial hemorrhages. Given the confined space of the posterior fossa, cerebellar hemorrhage management sometimes necessitates suboccipital decompression and hematoma evacuation. In this study, we examine outcomes after surgery for primary cerebellar hemorrhage and identify risk factors associated with adverse outcomes.MethodsA retrospective review of the 2005-2014 American College of Surgeons-National Surgical Quality Improvement Program database was performed, with Current Procedural Terminology Code 61315 (suboccipital craniectomy or craniotomy for evacuation of cerebellar hemorrhage) queried between 2005 and 2014. Patient demographics, preoperative comorbidities, and 30-day outcomes were analyzed. Univariate and multivariate regression analyses were performed to identify predictors of mortality and adverse events.ResultsA total of 158 craniotomies were studied, with a 30-day mortality rate of 26.6%. The most common adverse events included ventilator dependence after 48 hours (48.7%) and pneumonia (24.1%). Almost one quarter (24.7%) of patients required additional operations, with 8.5% of patients undergoing repeat craniotomy. Death was associated with premorbid dependent functional status (P = 0.005), American Society of Anesthesiologists class (P = 0.010), and history of congestive heart failure (P = 0.031). Prolonged ventilation was associated with premorbid functional status (P = 0.043) and ventilator dependence (P = 0.007) before surgery.ConclusionsCerebellar hemorrhage is associated with significant risk of mortality and ventilator dependence. In patients who require surgery, 30-day mortality risk remains high (26.6%), with functional status and American Society of Anesthesiologists class predictive of death.Copyright © 2017 Elsevier Inc. All rights reserved.

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