A study on recovery of deep hypothermia in rabbits
1999
Lee, B.H. | Chun, W.C. | Kim, J.Y. | Chung, B.H. (Kon-Kuk University, Seoul (Korea Republic). School of Veterinary Medicine) | Kim, J.S. | Park, J.H. | Park, J.S. | Han, J.S. (Samsung Biomedical Research Institute, Seoul (Korea Republic). Department of Laboratory Animal Research)
The studies were carried out to investigate the effect of recovery in rewarming using the esophageal thermal tube in the deep hypothermia(25+_1 degrees centigrade ; rectal temp) in rabbits. Fifteen rabbits were divided into control group(n=6), peritoneal dialysis group(n=5) irrigated with dialysate at 42+_1 degrees centigrade, and esophageal rewarming group(n=6), peritioneal dialysis group(n=5) irrigated with dialysate at 42+_1 degrees centigrade, and esophageal rewarming group(n=4) perfused with circulating water at 38+_1 degrees centigrade. Rewarming of the rabbits was performed for 5 hours. MAP, HR, RR, esophageal temp, rectal temp, pH, pCO2, pO2, Na+, and K+ were observed. The results obtained in these experiments were summarized as follows:Esophageal rewarming group(38+_1 degrees centigrade) had more effect on esophageal temperature than other groups. Peritoneal dialysis group(42+_1 degrees centigrade) had more effect on rectal temperature and pO2 than other groups. The both groups also had more effects on MAP, HR, RR, and pCO2 than control group. Three groups had no significant effect on pH, Na+, and K+. In conclusion, we found that the simple, safe, and non-invasive esophageal rewarming method had an effect on the treatment of profound hypothermia as well as the peritoneal dialysis method in spite of the temperature difference between the dialysate and the circulating water, and the circulating water at 38+_1 degrees centigrade for esophageal rewarming also had an effect on the recovery of deep hypothermia.
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