A prospectively randomized controlled study of the effects of intensive insulin therapy combined with glutamine on nutritional metabolism, inflammatory response, and hemodynamics in severe burn patients

Lou Jiaqi; Li Ye; Cui Qingwei; Zhang Pan; Sun Han; Tang Hao; Zhuang Mengmeng; Sun Yong

doi:10.3760/cma.j.cn501120-20210428-00159

Volume 37 Issue 9

Sep. 2021

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Article Navigation > CHINESE JOURNAL OF BURNS AND WOUNDS > 2021 > 37(9): 821-830

Lou JQ,Li Y,Cui QW,et al.A prospectively randomized controlled study of the effects of intensive insulin therapy combined with glutamine on nutritional metabolism, inflammatory response, and hemodynamics in severe burn patients[J].Chin J Burns,2021,37(9):821-830.DOI: 10.3760/cma.j.cn501120-20210428-00159.

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A prospectively randomized controlled study of the effects of intensive insulin therapy combined with glutamine on nutritional metabolism, inflammatory response, and hemodynamics in severe burn patients

doi: 10.3760/cma.j.cn501120-20210428-00159

Department of Burns and Plastic Surgery, the 71st Group Army Hospital of PLA Army, Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou 221004, China

Funds:

General Program of National Natural Science Foundation of China 81772082

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Corresponding author: Sun Yong, Email: sunyong_97@163.com
Received Date: 2021-04-28

Abstract

Abstract

Objective To observe the effects of intensive insulin therapy combined with glutamine on nutritional metabolism, inflammatory response, and hemodynamics in severe burn patients. Methods Thirty-two severe burn patients who met the inclusion criteria and hospitalized in the Affiliated Huaihai Hospital of Xuzhou Medical University from June 2017 to January 2019 were recruited into a prospectively randomized controlled study. According to the random number table, the patients were divided into conventional insulin therapy alone group, conventional insulin therapy+glutamine group, intensive insulin therapy alone group, and intensive insulin therapy+glutamine group, with 8 patients in each group, with genders of 5 males and 3 females, 4 males and 4 females, 3 males and 5 females, 4 males and 4 females, and ages of (35±7), (36±9), (33±11), and (38±7) years, respectively. Patients in conventional insulin therapy alone group were treated with conventional insulin therapy on the basis of routine treatment to control the blood glucose. Patients in conventional insulin therapy+glutamine group were supplemented with alanyl-glutamine for more than 14 days in addition to the treatment in conventional insulin therapy alone group. Patients in intensive insulin therapy alone group were treated with intensive insulin therapy on the basis of routine treatment to control the blood glucose. Patients in intensive insulin therapy+glutamine group were supplemented with alanyl-glutamine in addition to the treatment in intensive insulin therapy alone group. On treatment day (TD) 1, 3, 7, and 14, the blood glucose, albumin, prealbumin, white blood cell count, procalcitonin (PCT), and C-reactive protein (CRP) of patients in the 4 groups were detected. The cardiac index (CI), stroke volume index (SVI), global end-diastolic volume index (GEDVI), systemic vascular resistance index (SVRI), extravascular lung water index (EVLWI), and pulmonary vascular permeability index (PVPI) of patients in the 4 groups on TD 1, 3, and 7 were measured. Data were statistically analyzed with Fisher′s exact probability test, one-way analysis of variance, analysis of variance for repeated measurement, and Bonferroni method. Results All patients in the 4 groups successfully completed the study, and there were no withdrawal cases. On TD 3, 7, and 14, the blood glucose of patients in intensive insulin therapy alone group ((5.9±1.3), (5.8±0.6), (5.5±0.5) mmol/L) and intensive insulin therapy+glutamine group ((5.9±1.1), (5.6±1.1), (5.2±0.8) mmol/L) were significantly lower than those in conventional insulin therapy alone group ((9.1±0.5), (8.4±0.9), (7.4±1.1) mmol/L, P<0.05). Compared with those in conventional insulin therapy alone group, the levels of albumin of patients in conventional insulin therapy+glutamine group, intensive insulin therapy alone group, and intensive insulin therapy+glutamine group were significantly increased on TD 7 and 14 (P<0.05). Compared with the level of albumin of patients in intensive insulin therapy+glutamine group, the levels of albumin of patients in conventional insulin therapy+glutamine group and intensive insulin therapy alone group were significantly decreased on TD 14 (P<0.05). Compared with those in conventional insulin therapy alone group, the levels of prealbumin of patients in conventional insulin therapy+glutamine group and intensive insulin therapy alone group were significantly increased on TD 7 and 14 (P<0.05). Compared with those in intensive insulin therapy+glutamine group, the levels of prealbumin of patients in intensive insulin therapy alone group and conventional insulin therapy+glutamine group were significantly decreased on TD 1, 7, and 14 (P<0.05). There were no statistically significant differences in the white blood cell count, PCT, and CRP of patients in the 4 groups in pairwise comparison between groups on TD 1, 3, 7, and 14 (P>0.05). On TD 3 and 7, the levels of cardiac index, SVI, GEDVI, and SVRI of patients in intensive insulin therapy+glutamine group were significantly higher than those in conventional insulin therapy alone group (P<0.05), while the levels of EVLWI and PVPI were significantly lower than those in conventional insulin therapy alone group (P<0.05). Conclusions Glutamine combined with intensive insulin therapy can improve the hypermetabolism in patients after severe burns, reduce the decomposition and consumption of endogenous nutrient substrates, and at the same time help the recovery of cardiac function and maintenance of hemodynamic stability.
- Burns,
- Nutritional support,
- Parenteral nutrition,
- Glutamine,
- Metabolism,
- Inflammation,
- Cytokines,
- Hemodynamics,
- Intensive insulin therapy

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A prospectively randomized controlled study of the effects of intensive insulin therapy combined with glutamine on nutritional metabolism, inflammatory response, and hemodynamics in severe burn patients

doi: 10.3760/cma.j.cn501120-20210428-00159