A Low Peripheral Neutrophil-Lymphocyte Ratio Can Help to Exclude a Subarachnoid Hemorrhage

Joseph Esherick, M.D., FAAFP, FHM
More Articles – CT Scan, Headache, HPC Updates, subarachnoid hemorrhage
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An elevated peripheral neutrophil-lymphocyte ratio is an indicator of inflammation. Investigators from a Turkish university hospital hypothesized that this ratio might differ in patients with subarachnoid hemorrhage (SAH) versus those with other headache syndromes. They performed a retrospective study of…
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Lumbar puncture characteristics of traumatic LP versus subarachnoid hemorrhage

Joseph Esherick, M.D., FAAFP, FHM
More Articles – HPC Updates, Lumbar Puncture, subarachnoid hemorrhage, traumatic lumbar puncture
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How to Differentiate Traumatic Lumbar Punctures from Aneurysmal Subarachnoid Hemorrhage The diagnosis of subarachnoid hemorrhage (SAH) often requires lumbar puncture, however, in an estimated 10% to 30% of procedures that are traumatic, iatrogenic bleeding can complicate diagnosis. To identify cerebrospinal…
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