Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Cerebral aneurysm diagnostic criteria
Introduction
Overview
Overview
Hunt and Hess scale for Subarachnoid hemorrhage severity
Grading
Grading
In outlining symptoms of ruptured cerebral aneurysm, it is useful to make use of the Hunt and Hess scale of subarachnoid hemorrhage severity:
- Grade 1: Asymptomatic; or minimal headache and slight nuchal rigidity. Approximate survival rate 70%.
- Grade 2: Moderate to severe headache; nuchal rigidity; no neurologic deficit except cranial nerve palsy. 60%.
- Grade 3: Drowsy; minimal neurologic deficit. 50%.
- Grade 4: Stuporous; moderate to severe hemiparesis; possibly early decerebrate rigidity and vegetative disturbances. 20%.
- Grade 5: Deep coma; decerebrate rigidity; moribund. 10%.
References
References
Mooij J. J. (2001). Editorial: grading and decision-making in (aneurysmal) subarachnoid haemorrhage. Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences, 7(4), 283–289. https://doi.org/10.1177/159101990100700402
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Â ;Associate Editor(s)-in-Chief: Anika Zahoor M.D.[2]