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Updated: Feb 12, 2026

A Murine Model of Subarachnoid Hemorrhage
Published on: November 21, 2013
A Subarachnoid Hemorrhage Presenting as Massive Nasopharyngeal Bleeding: A Case Report
Jessica Zvara1, Ryan D Hafen, Timothy Angelotti
1From the Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University, Stanford, California.
Abstract:
Patients who present with a subarachnoid hemorrhage may have more than 1 intracranial aneurysm at risk, which may not be appreciated until a subsequent aneurysmal bleeding event occurs. We describe a patient who underwent successful aneurysmal clipping, but later presented urgently with large-volume epistaxis 48 hours after the procedure. After successful intubation of the patient, subsequent angiographic imaging determined that the massive intranasal/oral hemorrhage was due to bleeding through the former operative site, from rupture of a previously unrecognized aneurysm. This series of events demonstrates the importance of selecting the most at-risk aneurysm for surgical intervention.
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