Clinical Pathways
Clinical Pathways
High Probability
High Probability

High Probability

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Decision

Background

Given the life-threatening nature of SAH and the fact that CT is not 100% sensitive for SAH, for patients in whom sSAH is suspected despite a normal CT, an LP is recommended to increase the sensitivity of the diagnostic algorithm. In addition, LP may diagnose or suggest other conditions that cannot be detected by CT, such as benign intracranial hypertension, cerebral venous sinus thrombosis, spontaneous intracranial hypotension, and meningitis.

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References

Evidence-based medicine requires a critical appraisal of the literature based upon study methodology and number of subjects. Not all references are equally robust. The findings of a large, prospective, random-ized, and blinded trial should carry more weight than a case report.

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