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Objective: Perioperative hypothermia occurs in the pediatric age group in the perioperative period at a high rate. In this study, it is aimed to reveal the incidence of perioperative hypothermia and the risk factors that play a role in its development in pediatric circumcision cases that have a brief operation duration. Materials and Methods: This prospective observational cohort study included 100 children who underwent circumcision under general anesthesia. All patients were heated with a passive heater and hypothermia was interpreted as a drop in body temperature below <36°C. The patients were divided into 2 groups: group 1 (patients with body temperature <36°C) and group 2 (≥36°C). Demographic data, the American Society of Anesthesiologists' Classification of Physical Health Score, premedication method, operation time, fluid amount, preoperative and postoperative temperature of patients as tympanic were recorded. Results: The average age of the patients was 70 ± 40 months (median: 84) and 93% were ASA I. In 71% of patients, a decrease in body temperature and hypothermia developed in 39% compared to baseline. The duration of operation was longer in the group with hypothermia (30 min [15-70] vs. 25 min [15-60], P < .001). Only the duration of operation was determined as the independent risk factor associated with hypothermia (odds ratio: 1.103 [1.017-1.197], P = .018). Conclusion: In this study, it was found that high rates of hypothermia developed even in minor operations such as pediatric circumcision. The risk of hypothermia increases with the prolongation of surgery. [ABSTRACT FROM AUTHOR]

Purpose: The research is conducted in order to determine the incidence of involuntary hypothermia developed at the patients after abdominal surgery in the postoperative period and the factors affecting the development of the undesired hypothermia. Methodology: In this research that is conducted in descriptive and sectional style, 189 patients who had abdominal surgery in the general surgery and urology clinics of a university hospital in between 2nd of May -- 2nd of October 2019, who are in preoperative period with body temperature 36°C and above. These data are collected via patient identification forms and hypothermia evaluation form and individuals with body temperature below 36°C are considered as in hypothermia. In the evaluation of the data average, percentage distribution and chi-square test are used. Findings: The ratios of incidence in the postoperative period are determined as 62.4% in 0th postop hour, 42.9% at 1st postop hour, 33.9% at 2nd postop hour, 22.2% at postop 3rd hour and 13.2% at 4th postop hour. The lowest body temperature is measured as (35.69±0.66) at 0th postop hour. In patients with operation time our two hours and in risk classification II and above of the American Society of Anesthesiologists, the ratios of incidence of hypothermia are determined to be significantly higher (p<0.05). Results: In this study, it is determined that the hypothermia incidence in the postoperative period of the patients who had abdominal surgery is high, in the patients with long operation time and who are over risk classification II and above of the American Anesthesiologists Association, the hypothermia is seen more frequently. [ABSTRACT FROM AUTHOR]