Hunt_and_Hess_Classification_SAH v.1
The Hunt & Hess Classification of Subarachnoid Hemorrhage (SAH), predicts mortality by classifying the grade or severity of patients with aneurysmal subarachnoid haemorrhage.
The Hunt & Hess Classification of Subarachnoid Hemorrhage (SAH), predicts mortality by classifying the grade or severity of patients with aneurysmal subarachnoid haemorrhage.
Various symptoms and signs of neurological deficit and SAH, if any, are evaluated and scored, which correspond to grades. The 5 grades are listed in the tool issuing a score from 1 to 5. The criteria for grading, based on the assigned score is: Criteria Value Grade Mortality Mild Headache, Alert and Oriented, Minimal (if any) Nuchal Rigidity 1 I 30% Full Nuchal Rigidity, Moderate-Severe Headache, Alert and Oriented, No Neuro Deficit (Besides CN Palsy) 2 II 40% Lethargy or Confusion, Mild Focal Neurological Deficits 3 III 50% Stuporous, More Severe Focal Deficit 4 IV 80% Comatose, showing signs of severe neurological impairment (ex: posturing) 5 V 90%
Do not apply the scale to SAH caused by trauma, arteriovenous malformations, cavernous angiomas, dural arteriovenous fistulae, cortical or sinus venous thromboses, mycotic aneurysms or septic emboli with haemorrhagic transformation Do not use the score on its own for diagnostic purposes without supporting evidence. The scale applies to mortality rather than morbidity.
Ref. 1: Hunt WE, Hess RM. 'Surgical risk as related to time of intervention in the repair of intracranial aneurysms.' Journal of Neurosurgery 1968 Jan;28(1):14-20.
OBSERVATION.hunt_and_hess_classification_of_subarachnoid_haemorrhage.v1, EVALUATION.hunt_and_hess_for_sah_assessment.v1
