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Background and Purpose— Aneurysmal subarachnoid hemorrhage (aSAH) has a high healthcare cost burden. Methods— We performed a cross-sectional analysis of the costs of clipping and coiling of aSAH using the National Inpatient Sample and Vizient databases. We conducted multiple regression analyses to estimate national costs and study associations between patient demographic, clinical, and hospital factors and treatment costs. Results— We identified 23 324 ruptured aneurysm patients in the National Inpatient Sample (2002–2013) and found mean inflation-adjusted costs for clipping increased 41.0% ($66 358±1354–$93 597±2339), whereas costs for coiling increased 38.9% ($62 972±2657–$87 441±2382). Multivariate analysis showed that age, length of stay, insurance, comorbidities, risk of mortality, and urban teaching hospital status were associated with higher hospital costs for clipping and coiling (allP &lt;0.05). In the Vizient database (2013–2015), costs for clipping and coiling increased 11% and 5%, respectively. Both databases demonstrated that the western United States had the highest health expenditures for aSAH (P &lt;0.05).Conclusions— Findings show substantial cost increases and regional cost disparities for aSAH treatments. Patient and hospital factors copredict higher costs for aSAH procedures. Interhospital and regional cost variations open the door for cost-containment strategic development.

Nationwide Analysis of Cost Variation for Treatment of Aneurysmal Subarachnoid Hemorrhage