Medical Calculator#subarachnoid#SAH#Fisher
SAH Fisher Grade
1
About
The Fisher grading scale classifies the appearance of subarachnoid hemorrhage on CT scan and is used in predicting cerebral vasospasm.
The development of clinical vasospasm within each grade has been reported as follows:
- Grade 1 = 0%
- Grade 2 = 7%
- Grade 3 = 35%
- Grade 4 = 21%
Published Literature & References:
- [1]Fisher CM, Kistler JP, Davis JM.: Relation of cerebral vasospasm to subarachnoid hemorrhage visualized by computerized tomographic scanning.Neurosurgery 1980, 6 (1): 1-9
Results
Real-time automated computation
Fisher Grade
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Estimated Risk of Developing Clinical Vasospasm after Subarachnoid Hemorrhage
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Clinical Parameters (0/1)
0%Medical calculation formulas standardized according to evidence-based clinical protocols.
About
The Fisher grading scale classifies the appearance of subarachnoid hemorrhage on CT scan and is used in predicting cerebral vasospasm.
The development of clinical vasospasm within each grade has been reported as follows:
- Grade 1 = 0%
- Grade 2 = 7%
- Grade 3 = 35%
- Grade 4 = 21%
Published Literature & References:
- [1]Fisher CM, Kistler JP, Davis JM.: Relation of cerebral vasospasm to subarachnoid hemorrhage visualized by computerized tomographic scanning.Neurosurgery 1980, 6 (1): 1-9