Prospective study of the correlation between admission plasma homocysteine levels and neurological outcome following subarachnoid hemorrhage: A case for the reverse epidemiology paradox?

Background: Homocysteine (tHcy) has been known over the last few decades for its putative impact on vascular diseases, but has not been evaluated much in patients with subarachnoid hemorrhage (SAH). This study was carried out to assess its prognostic impact on the neurological outcome following SAH.