THE INCIDENCE AND RISK FACTORS FOR INTRA-OPERATIVE HYPOTHERMIA AMONG PAEDIATRIC PATIENTS UNDERGOING GENERAL ANAESTHESIA AT THE KENYATTA NATIONAL HOSPITAL.

Published on Aug 1, 2013in East African Medical Journal
· DOI :10.4314/EAMJ.V90I8
P M Kioko , P Olang1
Estimated H-index: 1
+ 1 AuthorsT Chokwe4
Estimated H-index: 4
Sources
Abstract
Objective : To determine the incidence and risk factors for intra-operative hypothermia in paediatric patients undergoing general anaesthesia at the Kenyatta National Hospital. Design : A prospective observational study. Setting : The Kenyatta National Hospital main operating theatres and affiliated satellite operating theatres. Subjects : A total of 100 paediatric patients (range; three days to 12 years, mean; 4.1 ± 3.3 years) were enrolled in the study. Results : Thirty out of 100 patients developed hypothermia defined as a core temperature <36oC recorded at least once during provision of general anaesthesia. Ninety percent of those developing hypothermia were male compared to 63% who remained normothermic (p = 0.006). Proportionally, more than twice as many hypothermic patients had a caudal block (43% versus 20%, p = 0.016) and received 121ml more of fluid (p = 0.002) compared to the normothermic group. The patients who became hypothermic tended to be colder at induction of anaesthesia (36.6 ± 0.5oC versus 37.0 ± 0.5oC, p = <0.0001) but there was no significant difference in the waiting time, time of  induction, environmental temperatures or theatre temperatures compared to those not developing hypothermia. There was no significant difference in the BMI between the two groups (14.0 ± 2.9 kg/ m 2 versus 15.2 ± 3.5 kg/m 2 , p = 0.101). Conclusion : The incidence of intra-operative core hypothermia in paediatric patients undergoing general anaesthesia at the Kenyatta National Hospital is 30%. Gender (male), lower body temperature at induction, use of caudal block and the volume of intravenous fluids infused were significant independent predictors of core hypothermia. The most significant predictor was body temperature at the time of induction of general anaesthesia.
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