title: Core temperature measurements through a new airway device, perilaryngeal airway (CobraPLA).
abstract: OBJECTIVE
  The aim of this study was to test the hypothesis that the intraoperative pharyngeal temperatures obtained on the perilaryngeal airway (PLA), a novel airway device with a larger pharyngeal cuff (when inflated) than the laryngeal mask airway, are similar to tympanic membrane core temperatures.
  
  
  METHODS
  This study is a prospective, simultaneous device comparison.
  
  
  METHODS
  This study was set at a university hospital.
  
  
  METHODS
  The study patients included 14 adults with American Society of Anesthesiologists physical statuses I and II, scheduled for minor gynecological or orthopedic surgery.
  
  
  METHODS
  A PLA was inserted into the pharynx after induction of general anesthesia. Thermocouples were positioned at 3 sites on the PLA: (1) posterior portion of the head of the airway (tip), (2) midposterior portion of the cuff, and (3) left and right lateral-posterior portions of the cuff. Tympanic membrane thermocouples were inserted.
  
  
  METHODS
  Temperature readings from the airway and the tympanic membrane thermocouples were recorded every 15 minutes throughout surgery.
  
  
  RESULTS
  Temperatures recorded from the lateral-posterior cuff were found to be virtually identical to tympanic membrane temperatures, with 97% of the values differing by less than 0.5 degrees C. Readings from the other 2 sites on the cuff differed considerably more from tympanic membrane values.
  
  
  CONCLUSIONS
  These data suggest that the PLA can be adapted to monitor core temperature reliably.
authors.affiliation: Outcomes Research Institute and Department of Anesthesiology, University of Louisville, KY 40202, USA. anupama.wadhwa@louisville.edu
authors.forename: Anupama
authors.initials: A
authors.lastname: Wadhwa
authors.forename: Daniel I
authors.initials: DI
authors.lastname: Sessler
authors.forename: Papiya
authors.initials: P
authors.lastname: Sengupta
authors.forename: Keith
authors.initials: K
authors.lastname: Hanni
authors.forename: Ozan
authors.initials: O
authors.lastname: Akça
mesh_terms: D000328:Adult; D001831:Body Temperature; D005260:Female; D006801:Humans; D007442:Intubation, Intratracheal / Q000295:instrumentation*; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000379:methods*; D010614:Pharynx / Q000502:physiology*; D011446:Prospective Studies