Acute, transient hemorrhagic hypotension does not aggravate structural damage or neurologic motor deficits but delays the long-term cognitive recovery following mild to moderate traumatic brain injury.
Schütz C, Stover JF, Thompson HJ, Hoover RC, Morales DM, Schouten JW, McMillan A, Soltesz K, Motta M, Spangler Z, et al. Crit Care Med. 2006 Feb; 34(2):492-501.