应用生物电阻抗法评估维持性血液透析患者营养状况(1)
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摘 要：目的：应用生物电阻抗法(BIA)评估维持性血液透析(MHD)患者的营养状况，为临床采取有效的营养干预提供科学依据。 方法：测量56例MHD患者与60名健康志愿者的体重(WT)、体质指数(BMI)、体脂肪量(FM)、瘦体重(LBM)(即非脂肪量FFM)和体脂肪率(Fat%)，用描述性研究的方法分析不同的性别、年龄及BMI的 MHD患者的人体成分。 结果：MHD患者人体成分的各项参数值均显著低于健康志愿者。在体质指数无显著差异的前提下，男性MHD患者的FM和Fat%低于女性，≥45岁的MHD患者FM和Fat%明显高于<45岁的患者。比较不同BMI的MHD患者的人体成分也存在显著差异。 结论：应用BIA测定MHD患者的人体成分准确、无创、快捷，对有效评估MHD患者的营养状况有着重要意义。
关键词：生物电阻抗法；人体成分；血液透析
中图分类号：R459.5
文献标识码：A
文章编号：1673-7717(2012)04-0854-03
Application of Bioelectrical Impedance Analysis in Patients under Maintenance Hemodialysis
HONG Hai-lan，WANG Lian-feng，YANG Cai-juan,HUANG Dong-ling
(Nursing Department，Taizhou Municipal Hospital Affiliated to Medical College of Taizhou University，Taizhou 318000，Zhejiang，China)
Abstract:Objective：Bioelectrical impedance analysis(BIA)was applied to assess nutritional status of maintenance hemodialysis patients(MHD)，to provide a scientific basis for clinical effective nutrition intervention.Methods：56 cases of MHD patients and 60 healthy volunteers were involved，weight(WT)，body mass index(BMI)，fat mass(FM)，lean body mass(LBM)(that is，fat-free mass，FFM)and body fat percentage were measured. Descriptive research method was used to analyze different gender，age and BMI in MHD patients of different body composition.Results：MHD patients of the body composition were significantly lower than healthy volunteers. Based on no significant difference in body mass index，FM and Fat % of male MHD patients were less than that of women，FM and Fat% of patients more than 45 years old were higher than that of the patients less than 45. Comparing the body composition among MHD patients with different BMI，there are significant differences.Conclusion：Application of BIA in MHD patients was accurate，non-invasive and quick and it has important significance for assessment of the nutritional status of MHD patients.
Key words:bioelectrical impedance analysis; body composition; hemodialysis
应用生物电阻抗分析法(bioelectrical impedance analysis，BIA)测量人体成分是1985年由Lukaski 等[5]提出的，人体中含有大量水分的非脂肪组织是电的良好导体，而几乎无水的脂肪是电的不良导体，通过导入人体一定频率的电流测量人体的电阻值，从而间接测量人体的体脂含量。简言之，BIA是一种利用生物组织与器官的电特性及其变化规律提取与人体生理、病理状况相关的生物医学信息的检测技术。
营养不良(Malnutrition)是维持性血液透析(Maintenance hemodialysis ......
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