What are the effects of fever in patients with aSAH?
Fever is the most common medical complication in aSAH.309 The presence of fever of noninfectious (central) origin has been associated with severity of injury, amount of hemorrhage, and development of vasospasm, and it may represent a marker of a systemic inflammatory state triggered by blood and its byproducts.310 312 Analysis of data from a prospectively collected registry of aSAH indicated that fever was independently associated with worse cognitive outcome in survivors of aSAH.313,314 Improved functional outcome with effective control of fever has been reported.315