COMMENTARYCommentary: Systemic Immune-Inflammation Index Predicts Delayed Cerebral Vasospasm After Aneurysmal Subarachnoid HemorrhageKhorchid, Yasser MD; Schirmer, Clemens M MD, PhD Author Information Correspondence: Yasser Khorchid, MD, 1000 E Mountain Dr, Wilkes Barre, PA 18711, USA. Email: [email protected] Neurosurgery 89(6):p E307, December 2021. | DOI: 10.1093/neuros/nyab368 Buy Corresponding Article Metrics Commentary Systemic Immune-Inflammation Index Predicts Delayed Cerebral Vasospasm After Aneurysmal Subarachnoid Hemorrhage Geraghty, Joseph R; Lung, Tyler J; Hirsch, Yonatan; Katz, Eitan A; Cheng, Tiffany; Saini, Neil S; Pandey, Dilip K; Testai, Fernando D Neurosurgery. 89(6):1071-1079, December 2021. © Congress of Neurological Surgeons 2021.