title: Brain temperature changes during selective cooling with endovascular intracarotid cold saline infusion: simulation using human data fitted with an integrated mathematical model.
abstract: The feasibility of rapid cerebral hypothermia induction in humans with intracarotid cold saline infusion (ICSI) was investigated using a hybrid approach of jugular venous bulb temperature (JVBT) sampling and mathematical modeling of transient and steady state brain temperature distribution. This study utilized both forward mathematical modeling, in which brain temperatures were predicted based on input saline temperatures, and inverse modeling, where brain temperatures were inferred based on JVBT. Changes in ipsilateral anterior circulation territory temperature (IACT) were estimated in eight patients as a result of 10 min of a cold saline infusion of 33 ml/min. During ICSI, the measured JVBT dropped by 0.76±0.18°C while the modeled JVBT decreased by 0.86±0.18°C. The modeled IACT decreased by 2.1±0.23°C. In the inverse model, IACT decreased by 1.9±0.23°C. The results of this study suggest that mild cerebral hypothermia can be induced rapidly and safely with ICSI in the neuroangiographical setting. The JVBT corrected mathematical model can be used as a non-invasive estimate of transient and steady state cerebral temperature changes.
authors.affiliation: Department of Radiology, SUNY Downstate, Brooklyn, New York, USA. man2003@columbia.edu
authors.forename: Matthew Aaron Harold
authors.initials: MA
authors.lastname: Neimark
authors.forename: Angelos Aristeidis
authors.initials: AA
authors.lastname: Konstas
authors.forename: Leslie
authors.initials: L
authors.lastname: Lee
authors.forename: Andrew Francis
authors.initials: AF
authors.lastname: Laine
authors.forename: John
authors.initials: J
authors.lastname: Pile-Spellman
authors.forename: Jae
authors.initials: J
authors.lastname: Choi
mesh_terms: D000328:Adult; D000368:Aged; D001831:Body Temperature / Q000187:drug effects / Q000502:physiology*; D001921:Brain / Q000187:drug effects / Q000502:physiology*; D002343:Carotid Artery, Internal / Q000187:drug effects / Q000502:physiology*; D003080:Cold Temperature; D057510:Endovascular Procedures / Q000379:methods; D005260:Female; D006801:Humans; D007036:Hypothermia, Induced / Q000379:methods*; D007261:Infusions, Intra-Arterial; D008297:Male; D008875:Middle Aged; D008962:Models, Theoretical; D012965:Sodium Chloride / Q000008:administration & dosage*; D013223:Statistics as Topic
chemical_list: D012965:Sodium Chloride