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多频生物电阻抗技术评价COPD患者营养状况及其与血气分析指标的相关性 被引量:4

Evaluation of Nutritional Status in COPD Patients by Multi- frequency Bioelectrical Impedance and Its Correlation With Blood Gas Indicators
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摘要 目的应用多频生物电阻抗技术分析COPD患者人体成分及其与血气分析指标的关系,为COPD患者的营养支持提供依据。方法选择2011年1—6月在新桥医院呼吸科住院并诊断为COPD患者62例,采用多频生物电阻抗法检测患者的人体成分,收集患者入院时的血清总蛋白、清蛋白、前清蛋白、血红蛋白、淋巴细胞计数及血气分析指标〔二氧化碳分压(Pa CO_2)、氧分压(Pa O_2)、血氧饱和度(Sp O_2)、HCO_3^-、Cl^-、K^+、Na^+、p H值〕,对相关指标进行统计分析。结果依据体蛋白质含量、体脂肪量(BFM)、体质指数(BMI)、上臂围(MAC)4种指标评价COPD患者的营养状况,营养不足率分别为41.9%、17.7%、19.4%、16.1%。以BMI为分组标准,不同营养状况分组患者身体总水分(TBW)、BFM、体脂率(PBF)、无脂组织(FFM)、无脂肪组织体质量比(PBFF)、体蛋白质含量、蛋白质体质量比(PBP)比较,差异均有统计学意义(P<0.05),其中营养不足组PBP高于营养正常组和营养过剩组,营养不足组PBF和FFM低于营养正常组和营养过剩组(P<0.05)。TBW、FFM、体蛋白质含量、骨骼肌(SMM)与Pa O_2呈负相关(r=-0.311、-0.306、-0.308、-0.306,P<0.05),BMI与Sp O2呈负相关(r=-0.304,P<0.05)。结论依据体蛋白质含量评估COPD患者的营养不足率较高。相对于BMI常规营养评价指标,FFM指标对COPD患者的营养状况评价更为敏感,并提示增加COPD患者FFM含量可能有益于提高其缺氧耐受性。 Objective To examine the body composition of COPD patients by multi - frequency bioeleetrical impedance and investigate the relationship between body composition and blood gas indicators in order to provide clinical references for nutritional support for COPD patients. Methods We enrolled 62 patients who was hospitalized and diagnosed with COPD in the Department of Respiratory Medicine of Xinqiao Hospital from January to June in 2011. Multi - frequency bioelectrical impedance was used to detect the patients' physical composition. We collected data of serum total protein, albumin, prealbumin, hemoglobin, lymph cell count, blood gas (PaCO2, PaO2 and SpO2), HCO3-, CI-, K+, Na+, pH of the subjects at admission. Statistical analysis was conducted on the above indicators. Results The malnutrition rates assessed by ribosomal protein content, body fat content, BMI and MAC were 41.9%, 17.7%, 19.4% and 16. 1%, respectively. According the BMI, the patients with inadequate, normal and excess nutrition were significantly different ( P 〈 0.05 ) in ribosomal TBW, BFM, PBF, FFM, PBFF, protein content and PBP; the subjects with inadequate nutrition were higher (P 〈 0.05 ) than those with normal and high nutrition in PBP; the subjects with inadequate nutrition were lower (P 〈 0. 05 ) than those with normal and high nutrition in PBF and FFM. TBW, FFM, ribosomal protein, and SMM were negatively correlated withPaO2 (r= -0.311, -0.306, -0.308, -0.306; P〈0.05), and BMI was negatively correlated with Sp02 (r= - 0. 304, P 〈 0. 05 ). Conclusion COPD patients have high malnutrition rate when assessed by ribosomal protein. FFM is more sensitive than BMI in nutritional evaluation of COPD patients. The increase of FFM in COPD patients may improve hypoxia tolerance.
出处 《中国全科医学》 CAS CSCD 北大核心 2015年第14期1641-1645,共5页 Chinese General Practice
基金 国家自然科学基金资助项目(81273058)
关键词 电阻抗 肺疾病 慢性阻塞性 营养状况 血气分析 身体成分 Electric impedance Pulmonary disease, chronic obstructive Nutritional status Blood gas analysis Body composition
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