Poor-grade aneurysmal subarachnoid hemorrhage definition

Risk factors and outcomes after interruption of sedation in subarachnoid hemorrhage (ROUTINE-SAH)-a retrospective cohort study
Impact of Medical and Neurologic Complications on the Outcome of Patients with Aneurysmal Subarachnoid Hemorrhage in a Middle-Income Country
Sedation protocols in non-traumatic SAH (SPRINT-SAH): A cross-sectional survey among German-speaking neurointensivists
Optimal Use of Temporary Clip Application during Aneurysm Surgery - In Search of the Holy Grail
Cortical Blood Flow Insufficiency Scores with Computed Tomography Perfusion can Predict Outcomes in Aneurysmal Subarachnoid Hemorrhage Patients: A Cohort Study
Invasive neuromonitoring with an extended definition of delayed cerebral ischemia is associated with improved outcome after poor-grade subarachnoid hemorrhage
The Outcome of Aneurysm Clipping in Septuagenarians - A Retrospective Analysis in a Basic Neurovascular Unit
Early Brain Injury After Poor-Grade Subarachnoid Hemorrhage

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 deficits, usually classified as Hunt and Hess grade IV or V ¹⁾.

or as grades 4 and 5 according to the World Federation of Neurosurgical Societies (WFNS) ²⁾

¹⁾

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.

²⁾

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.