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Revista Brasileira de Anestesiologia
On-line version ISSN 1806-907X
PAGNOCCA, Marcelo Lacava; TAI, Eun Joo and DWAN, Joana L.. Temperature control in conventional abdominal surgery: comparison between conductive and the association of conductive and convective warming. Rev. Bras. Anestesiol. [online]. 2009, vol.59, n.1, pp. 56-66. ISSN 1806-907X. http://dx.doi.org/10.1590/S0034-70942009000100008.
BACKGROUND AND OBJECTIVES: Intraoperative hypothermia is a common complication, and its development is favored by abdominal surgeries. The efficacy of the association of conductive and convective warming methods in the prevention of hypothermia, and its effects during postoperative recovery were the objectives of this study. METHODS: Forty-three patients of both genders, ages 18 to 88 years, undergoing xyphopubic laparotomy under general anesthesia and monitoring of the esophageal temperature were randomly divided in two groups, according to the warming method: COND (n = 24), circulating-water mattress at 37° C on the back, and COND + CONV (n = 19), circulating-water mattress associated with warm air blanket at 42° C over the thorax and upper limbs. Weight, gender, age, duration of surgery and anesthesia, temperature on anesthetic induction (Mi), consecutive hours (M1, M2), end of surgery (Mes) and anesthesia (Mea), and admission (Ma-REC) and discharge (Md-REC) from the post-anesthetic recovery room (PARR), besides the postoperative incidence of tremors and complaints of cold, were analyzed. RESULTS: Both groups were similar regarding all parameters analyzed, except temperatures on M2, M3, M4, Mes, and Mea. The temperature of patients in the COND group decreased from the second hour of anesthetic induction on, but in the COND + CONV group it only happened in the fourth hour. Patients in the COND group presented hypothermia upon admission and discharge from the PARR. CONCLUSIONS: The association of different warming methods delayed the beginning and reduced the severity of intraoperative hypothermia, but it did not reduce the complaints of feeling cold and tremors.
Keywords : COMPLICATIONS, hypothermia; MONITORING, temperature; POSTOPERATIVE RECOVERY, tremors; SURGERY, abdominal; TREATMENT, warming.