Body temperature evaluation during induced pneumoperitoneum with CO2: an experimental study in pigs

Body temperature evaluation during induced pneumoperitoneum with CO2: an experimental study in pigs

Author Rezende, Marcelo Google Scholar
Prado, Orlando Google Scholar
Bandeira, Cesar Google Scholar
Petri, Andre Google Scholar
Montero, Edna Autor UNIFESP Google Scholar
Institution Universidade Estadual de Maringá (UEM)
Universidade Federal de São Paulo (UNIFESP)
Abstract In prolonged laparoscopic procedures, hypothermia is frequently observed. the possible influence of the vasodilating action of CO2, due to its increased levels in the blood during the laparoscopic procedures, has yet to be studied. the objective of this study was, therefore, to evaluate body temperature patterns in pigs subjected to pneumoperitoneum with CO2.Thirty male pigs were allocated into three groups of ten animals each: group I, anesthetic procedure and abdominal puncture only; group II, the same as for group I and insufflation with CO2; and group III, the same as for group I and insufflation with medical grade compressed air. After anesthetic induction and surgical preparation, rectal and esophageal temperatures were measured every 10 min. Blood was collected during the experiment for the gasometric measurement of pCO(2). Animals were insufflated with no gas loss and were kept anesthetized for 180 min. for statistical analysis, Friedman and Kruskal-Wallis tests were used at a level of significance of 95% (P < 0.05).Animals in groups I and II (P = 0.000) had a statistically significant drop in both esophageal and rectal temperatures during the experiment, but not animals in group III. However, when the groups were compared among themselves, no statistically significant differences were found at any of the times measured. A statistically significant drop in pCO(2) levels was observed for groups I and III, but not for animals in groups II.The use of CO2 did not significantly affect body temperature variation in pigs subjected to pneumoperitoneum. However, CO2 produced a temperature drop pattern different than that of compressed air, indicating that CO2 may lead to thermoregulatory changes and influence the peripheral temperature drop.
Keywords Hypothermia
Laparoscopy
Carbon dioxide
Pigs
Pneumoperitoneum
Language English
Date 2012-06-01
Published in Surgical Endoscopy and Other Interventional Techniques. New York: Springer, v. 26, n. 6, p. 1724-1729, 2012.
ISSN 0930-2794 (Sherpa/Romeo, impact factor)
Publisher Springer
Extent 1724-1729
Origin http://dx.doi.org/10.1007/s00464-011-2099-x
Access rights Closed access
Type Article
Web of Science ID WOS:000304161500035
URI http://repositorio.unifesp.br/handle/11600/34937

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