title: The effects of isothermic or hypothermic carbon dioxide pneumoperitoneum on arterial blood gases.
abstract: OBJECTIVE
  To investigate the effects of isothermic or hypothermic carbon dioxide used for pneumoperitoneum during laparoscopic cholecystectomy on blood gases.
  
  
  METHODS
  Between 2004 and 2006, 62 patients (American Society of Anesthesiologists grade I, II, and III for elective laparoscopic cholecystectomy) (age between 18 and 70 years), were enrolled in this prospective randomized study. The patients were divided into 2 groups. In the isothermic group, 37 degrees C carbon dioxide was used, and 21 degrees C carbon dioxide was used in hypothermic group. Core body temperature at esophagus and skin temperature were measured at 10-minute intervals beginning just before insufflation and during pneumoperitoneum. Blood arterial pH, arterial carbon dioxide pressure, arterial oxygen pressure, and bicarbonate values were measured just before insufflation, at 30 minutes of pneumoperitoneum, and 30 minutes after desufflation.
  
  
  RESULTS
  The mean skin body temperature was significantly higher in the isothermic group than the hypothermic group, no significant difference was observed in core body temperature and blood arterial pH, arterial carbon dioxide pressure, arterial oxygen pressure, and bicarbonate values.
  
  
  CONCLUSIONS
  Warming insufflated carbon dioxide in laparoscopy does not affect blood gases.
authors.affiliation: Department of Surgery, Faculty of Medicine, Harran University, Sanliurfa, Turkey. ozgonul2004@yahoo.com
authors.forename: Abdullah
authors.initials: A
authors.lastname: Ozgonul
authors.forename: Ceylan
authors.initials: C
authors.lastname: Erkan
authors.forename: Gencer
authors.initials: G
authors.lastname: Mehmet
authors.forename: Baysal
authors.initials: B
authors.lastname: Zeynep
authors.forename: Uzunkoy
authors.initials: U
authors.lastname: Ali
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001784:Blood Gas Analysis; D001831:Body Temperature; D002245:Carbon Dioxide / Q000008:administration & dosage*; D017081:Cholecystectomy, Laparoscopic; D005260:Female; D006801:Humans; D007035:Hypothermia; D008297:Male; D011028:Pneumoperitoneum, Artificial; D011446:Prospective Studies
chemical_list: D002245:Carbon Dioxide