• Andrea Becerril-Gaitan, Tien Nguyen, Collin Liu, Collins Mokua, Aaron M Gusdon, Robert J Brown, Joseph Cochran, Spiros Blackburn, Peng Roc Chen, Mark Dannenbaum, Huimahn A Choi, and Ching-Jen Chen.
• Department of Neurosurgery, The University of Texas Health Science Center at Houston, Houston, Texas, USA.
• World Neurosurg. 2024 Jul 1; 187: e1017e1024e1017-e1024.

BackgroundThe association between patient age and cerebral arterial vasospasm (CVS) and delayed cerebral ischemia (DCI) risk following aneurysmal subarachnoid hemorrhage (aSAH) remains unclear. This study aims to assess the role of age on aSAH-related complications.MethodsSingle-center retrospective study comprising aSAH patients treated between January 2009 and March 2023. Age was analyzed as continuous and categorical variables (<60 yrs vs. ≥60 yrs and by decade). Outcomes of interest included radiographic CVS, DCI, cerebral infarction, in-hospital mortality, length-of-stay (LOS), ventriculoperitoneal shunt placement, and modified Rankin Scale (mRS) scores at discharge and 3-month follow-up.ResultsNine hundred and twenty-five aSAH patients were included. Most (n = 598; 64.6%) were <60 yrs old (46 ± 9.1 yrs). CVS likelihood was lower in the older cohort (aOR = 0.56 [0.38-0.82]). Patients ≥60 yrs had higher mortality rates (aOR = 2.24 [1.12-4.47]) and worse mRS scores at discharge (aOR = 2.66 [1.91-3.72]) and 3-month follow-up (aOR = 2.19 [1.44-3.32]). Advanced age did not have a significant effect on DCI or cerebral infarction risk. Higher in-hospital mortality was documented with increasing age (P < 0.001). A significant interaction between CVS and age for the outcome of DCI was documented, with a stronger positive effect on poor outcomes (i.e., higher odds of DCI) among patients aged <60 years compared to those aged ≥60.ConclusionsThere is an inverse relationship between patient age and CVS incidence following aSAH. Nonetheless, patients ≥60 yrs had comparable DCI rates, higher in-hospital mortality, and worse functional outcomes than their younger counterparts. Routine screening and reliance on radiographic CVS as primary marker for aSAH-related complications should be reconsidered, particularly in older patients.Copyright © 2024 Elsevier Inc. All rights reserved.

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