RT Book, Section A1 Haque, Raqeeb A1 Kotchetkov, Ivan S. A1 Hwang, Brian Y. A1 Connolly, E. Sander A2 Lee, Kiwon SR Print(0) ID 1101643763 T1 Brain Aneurysm and Arteriovenous Malformation Surgery T2 The NeuroICU Book YR 2012 FD 2012 PB McGraw-Hill Education PP New York, NY SN 9780071636353 LK neurology.mhmedical.com/content.aspx?aid=1101643763 RD 2024/04/19 AB Ruptured intracranial aneurysms. A 56-year-old man is admitted to the neurologic intensive care unit (NICU, NeuroICU) after he develops a nonradiating frontal headache associated with photophobia, nausea, and one episode of nonbilious, nonbloody vomiting 30 minutes prior to his arrival at the emergency department. Noncontrast head computed tomography (CT) is consistent with acute subarachnoid hemorrhage—Blood is seen in the middle cerebral artery cisterns extending into the sylvian fissures bilaterally (Figure 21-1).