Poor-grade aneurysmal subarachnoid hemorrhage definition [Neurosurgery Wiki]

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====== Poor-grade aneurysmal subarachnoid hemorrhage definition ======

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[[Poor-grade aneurysmal subarachnoid hemorrhage]] (SAH) refers to a type of [[SAH]] in which the [[patient]] has a low level of [[consciousness]] or other severe [[neurological deficit]]s, usually classified as [[Hunt and Hess]] grade IV or V 
((Bösel J. What Do We Mean by Poor-Grade Aneurysmal Subarachnoid Hemorrhage and What Can We Do? Neurocrit Care. 2016 Dec;25(3):335-337. doi: 10.1007/s12028-016-0347-6. PMID: 27822740.)).

or as grades 4 and 5 according to the World Federation of Neurosurgical Societies (WFNS)
((Report of World Federation of Neurological Surgeons Committee on a Universal Subarachnoid Hemorrhage Grading Scale. J Neurosurg. 1988 Jun;68(6):985-6. doi: 10.3171/jns.1988.68.6.0985. PMID: 3131498.))