• Shinichiro Yoshikawa, Tomoya Kamide, Yuichiro Kikkawa, Kaima Suzuki, Toshiki Ikeda, Shinya Kohyama, and Hiroki Kurita.
• Department of Cerebrovascular Surgery, International Medical Center, Saitama Medical University, Saitama, Japan.
• World Neurosurg. 2020 Dec 1; 144: e743-e749.

ObjectiveLong-term outcomes after surgical treatment and intensive care have not been investigated in elderly patients with poor-grade aneurysmal subarachnoid hemorrhage (aSAH). This study aimed to analyze 12-month outcomes and prognostic factors of patients with poor-grade aSAH who were at least age 70 years.MethodsWe performed a single-center, retrospective study including poor-grade (World Federation of Neurological Societies [WFNS] grades IV and V) aSAH patients who were at least age 70 years, were admitted to our stroke center, and received aneurysmal treatment between April 2012 and September 2018. The clinical outcomes were evaluated at months 3 and 12. Univariate/multivariate analyses were performed to identify the independent prognostic factors of good neurologic outcomes (modified Rankin Scale score 0-3). These factors included sex, age, WFNS grade, Fisher group, delayed cerebral ischemia, aneurysm treatment, aneurysm size, aneurysm location, and blood examination data in the 14 days post subarachnoid hemorrhage.ResultsThe proportion of patients with good outcomes (modified Rankin Scale score 0-3) was increased at 12 months compared with that at 3 months. No intracerebral hemorrhage was a significant predictor of good neurologic outcomes at 3 months (P = 0.03). The absence of delayed cerebral ischemia and small fluctuations in the average absolute daily difference from normal sodium levels were significant predictors of good neurologic outcomes at months 3 and 12 (P = 0.04 and P = 0.03, respectively).ConclusionsThe absence of delayed cerebral ischemia and small fluctuations in the average absolute daily difference from the normal sodium levels were independently associated with good neurologic outcomes at 12 months in elderly patients. Intracerebral hemorrhage did not appear to affect long-term outcomes. These findings suggest that elderly patients with severe subarachnoid hemorrhage should not be excluded from receiving surgical treatment on the basis of their age alone.Copyright © 2020 Elsevier Inc. All rights reserved.

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