Effect of heated pneumoperitoneum on body temperature in dogs undergoing laparoscopic ovariectomy-A randomized...

To compare the temperatures of dogs undergoing laparoscopic ovariectomy with insufflation using heated or nonheated CO₂.

Randomized controlled trial.

Fifteen female dogs undergoing laparoscopic ovariectomy.

The animals were randomly distributed into groups: NH-insufflated with nonheated CO₂ (n = 8), or H-insufflated with 36.5°C heated CO₂ (n = 7). Body weight, anesthetic time, surgical time, insufflation time, initial esophageal temperature, and final temperature were compared.

All animals completed the study and recovered well from the surgery. The groups had similar values for body weight, age, initial temperature, and anesthetic, surgical, and insufflation times. The final temperature of the H group was 1.1°C higher than the NH group (p = .0026). In the NH group, correlations between final temperature and anesthetic time (p = .016), surgical time (p = .011), and insufflation time (p = .033) were observed. For the H group, no correlations among these parameters were identified.

Carbon dioxide insufflation ameriorated the temperature reduction during laparoscopic ovariectomy in dogs.

The results can be applied directly to prevent hypothermia during laparoscopic procedures in dogs.