Warmed intravenous infusion for controlling intraoperative hypothermia

experimental, comparative, field, prospective and quantitative study undertaken at a federal public hospital. The sample was composed of 60 adults, included based on the criteria of axillary temperature between 36ºC and 37.1ºC and surgical abdominal access, divided into control and experimental groups, using the systematic probability sampling technique.

RESULTS:

22 patients (73.4%) from both groups left the operating room with hypothermia, that is, with temperatures below 36ºC (p=1.0000). The operating room temperature when patients arrived and patients' temperature when they arrived at the operating room were statistically significant to affect the occurrence of hypothermia.

CONCLUSION:

the planning and implementation of nursing interventions carried out by baccalaureate nurses are essential for preventing hypothermia and maintaining perioperative normothermia.

Hypothermia; Perioperative Nursing; Operating Rooms

Variables	Groups	Average	Standard Error	Median	Minimum	Maximum	p-value
Duration of anesthetics (minutes)	Control	183.80	14.69	175.0	60.0	330.0	0.9646
Duration of anesthetics (minutes)	Experimental	183.53	15.04	165.0	80.0	400.0	0.9646
Duration of surgery (minutes)	Control	148.77	14.04	140.0	45.0	285.0	0.6253
Duration of surgery (minutes)	Experimental	139.00	13.77	102.5	60.0	340.0	0.6253

Variables	Groups	Average	Standard Error	Median	Minimum	Maximum	p-value
Patients' temperature at the time of entry into the OR (ºC)	Control	36.35	0.05	36.4	36.0	36.9	0.0562
Patients' temperature at the time of entry into the OR (ºC)	Experimental	36.25	0.06	36.1	36.0	37.1	0.0562
Patients' temperature at the time of exit from the OR (ºC)	Control	34.43	0.16	34.7	32.7	35.6	0.7113
Patients' temperature at the time of exit from the OR (ºC)	Experimental	34.33	0.20	34.3	32.0	36.2	0.7113

Variables	Groups	Average	Standard Error	Median	Minimum	Maximum	p-value
Temperature of the OR at the time of patients' entry (ºC)	Control	23.69	0.11	24.0	22.2	24.8	0.1776
Temperature of the OR at the time of patients' entry (ºC)	Experimental	24.07	0.25	24.2	21.7	26.7	0.1776
Temperature of the OR at the time of patients' exit (ºC)	Control	23.07	0.19	23.3	20.8	24.6	0.8416
Temperature of the OR at the time of patients' exit (ºC)	Experimental	23.64	0.38	23.1	21.4	29.5	0.8416
Humidity level of the OR at the time of patients' entry (%)	Control	55.13	0.51	55.0	45.0	60.0	0.0000
Humidity level of the OR at the time of patients' entry (%)	Experimental	49.73	1.05	49.5	42.0	64.0	0.0000
Humidity level of the OR at the time of patients' exit (%)	Control	54.20	0.56	55.0	44.0	59.0	0.0001
Humidity level of the OR at the time of patients' exit (%)	Experimental	48.33	1.08	47.5	38.0	59.0	0.0001

Univariate logistic regressions	Β	S(Β)	p-value	Odds ratio	LI	LS
Intercept	1.010	0.413	0.014	-	-	-
Group=Experimental	0.000	0.584	1.000	1.00	0.32	3.14
Intercept	1.870	0.760	0.014	-	-	-
Gender=Female	-1.080	0.825	0.192	0.34	0.07	1.71
Intercept	-0.755	1.010	0.455	-	-	-
Age (Years)	0.039	0.022	0.077	1.04	1.00	1.08
Intercept (ASA=I)	0.693	0.463	0.134	-	-	-
ASA=II	0.477	0.600	0.427	1.61	0.50	5.22
Intercept	0.860	0.360	0.017	-	-	-
Systemic Arterial Hypertension=Yes	0.421	0.620	0.498	1.52	0.45	5.14
Intercept	0.903	0.306	0.003	-	-	-
Diabetes Mellitus=Yes	1.040	1.110	0.348	2.83	0.32	24.92
Intercept	1.190	0.345	0.001	-	-	-
Other comorbidities = Yes	-0.716	0.666	0.283	0.49	0.13	1.80
Intercept (CPCC=Clear)	1.070	0.350	0.002	-	-	-
CPCC=Potentially contaminated	-0.221	0.774	0.776	0.80	0.18	3.65
CPCC=Contaminated	-0.375	0.934	0.688	0.69	0.11	4.29
Intercept	0.856	0.728	0.240	-	-	-
Anesthetics duration (hours)	0.051	0.221	0.816	1.05	0.68	1.62
Intercept	0.996	0.631	0.114	-	-	-
Surgery duration (hours)	0.006	0.234	0.978	1.01	0.64	1.59
Intercept	79.500	35.100	0.023	-	-	-
Patients' temperature at the time of entry into the OR (ºC)	-2.160	0.964	0.025	0.12	0.02	0.76
Intercept	17.600	7.360	0.017	-	-	-
Temperature of the OR at the time of patients' entry (ºC)	-0.692	0.304	0.023	0.50	0.28	0.91
Intercept	9.050	4.330	0.037	-	-	-
Temperature of the OR at the time of patients' exit (ºC)	-0.342	0.183	0.062	0.71	0.50	1.02
Intercept	-2.390	2.910	0.412	-	-	-
Humidity level in the OR at the time of patients' entry (%)	0.065	0.056	0.244	1.07	0.96	1.19
Intercept	-3.040	2.650	0.251	-	-	-
Humidity level in the OR at the time of patients' exit (%)	0.080	0.052	0.127	1.08	0.98	1.20

Multivariate logistic regression	Β	S(Β)	p-value	Odds ratio	LI	LS
Intercept	99.76	40.86	0.0146	-	-	-
Patients' temperature at the time of entry into the OR (ºC)	-2.23	1.05	0.0341	0.11	0.01	0.85
Temperature of the OR at the time of patients' entry (ºC)	-0.74	0.35	0.0342	0.48	0.24	0.95

Escola de Enfermagem de Ribeirão Preto / Universidade de São Paulo Av. Bandeirantes, 3900, 14040-902 Ribeirão Preto SP Brazil, Tel.: +55 (16) 3315-3451 / 3315-4407 - Ribeirão Preto - SP - Brazil
E-mail: rlae@eerp.usp.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] Corresponding Author: Ana Lúcia De Mattia Rua Aquiles Lobo, 314, Apto. 04 Bairro: Floresta CEP: 30150-160, Belo Horizonte, MG, Brasil E-mail: almattia@uol.com.br

Brasil

Brasil

Warmed intravenous infusion for controlling intraoperative hypothermia1 1 Supported by Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG), # process APQ 00384-10.

OBJECTIVE:

METHOD:

RESULTS:

CONCLUSION:

Warmed intravenous infusion for controlling intraoperative hypothermia¹ 1 Supported by Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG), # process APQ 00384-10.