Abstract
Author(s): EricA.Lacey,RedmondG.OâÂÂConnell,ShaneM.OâÂÂMara,andPaulM.Dockree
MildInducedhypothermiahascometoberecognisedasasuccessfulmethodofprovidingneuro-protectivetreatmentfor patientssuï¬eringischemicstroke,cardiacarrestandtraumaticbraininjury(TBI).Anti-inï¬ammatoryresponsesandthelowering of cerebral metabolic rates, leading to a reduction in neuronal apoptosis, are considered to be the main mechanisms by which this process beneï¬ts patients. Assessment of a new hydro based cooling device, which could potentially be used by emergency serviceunits,providedtheimpetusforthecurrentresearch.Neurologicallynormalparticipantsunderwenttwotreatments:acooling procedurewherethetemperatureofwatercirculatinginacoolinghelmetwasmaintainedat4âCandanon-cooling/shamprocedure wherethetemperaturewassetat18âC.Duringtreatmentparticipantswererequiredtoperformacomputer-basedtaskthatmeasured sustained attention/vigilance via participant response times during target detection. Electroencephalographic (EEG) recordings werealsoacquiredbeforeandaftereachtreatmentcondition.Participants’coretemperature(recordedviatympanicmembrane) was monitored throughout the process. The ï¬ndings revealed a statistically reliable 0.62âC decrease in temperature as a result ofcoolingaftercontrollingforparticipants’bodymassindex(BMI).However,therewerenoreliablecognitiveorEEGspectral changesinducedbythedecreaseintemperature.
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