Heating and Cooling Rates With an Esophageal Heat Exchange System.

ABSTRACT: BACKGROUND:The Esophageal Cooling Device circulates warm or cool water through an esophageal heat exchanger, but warming and cooling efficacy in patients remains unknown. We therefore determined heat exchange rates during warming and cooling. METHODS:Nineteen patients completed the trial. All had general endotracheal anesthesia for nonthoracic surgery. Intraoperative heat transfer was measured during cooling (exchanger fluid at 7°C) and warming (fluid at 42°C). Each was evaluated for 30 minutes, with the initial condition determined randomly, starting at least 40 minutes after induction of anesthesia. Heat transfer rate was estimated from fluid flow through the esophageal heat exchanger and inflow and outflow temperatures. Core temperature was estimated from a zero-heat-flux thermometer po

SUBMITTER: Kalasbail P 

PROVIDER: S-EPMC5882296 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature