【摘要】 目的:探讨生物电阻抗相位角(phase angle,PA)与胸外手术病人营养风险、住院时间(hospital length of stay,LOS)的关系。方法:60例胸部手术病人,应用营养风险筛查2002(NRS2002)、主观全面评定(Subjective Global Assessment,SGA)、白蛋白、人体成分分析、PA评价其营养风险及LOS。结果 :与对照组比较,手术病人PA偏低,男(6.0±1.0)vs(3.85±1.0),女(5.4±0.9)vs(4.9±0.6),P<0.01。与正常PA比较,低PA者营养风险相对危险度,用NRS2002。无风险(RR 2.8,95%CI=1.2~6.9),中度风险(RR 3.9,95%CI=1.8~8.6),重度风险(RR4.2,95%CI=2.0~8.7);用SGA。营养良好(RR 2.5,95%CI=0.9~6.9),中度营养不良(RR 4.4,95%CI=2.1~9.4),重度营养不良(RR 3.9,95%CI=1.9~8.0),与NRS2002相似;与正常PA比较,低PA者住院时间倾向于延长(LOS≥21 d,RR=4.4,95%CI=2.2~8.8)。结论 :低PA与手术病人营养风险、LOS延长密切关联。PA测量有助于快速明确病人的营养风险对于确定病人营养干预和判断疾病转归提供了客观依据。更多还原

【Abstract】 Objective: To explore the association between phase angle(PA) of bioelectrical impedance analysis(BIA) and nutritional risk assessed by Nutritional Risk Screening(NRS-2002) Subjective Global Assessment(SGA), and hospital length of stay(LOS) in patients undergoing thoracic surgery. Methods: 60 patients who underwent thoracic surgery were evaluated for nutrition risk and hospital length of stay(LOS) by NRS2002, SGA, albumin and bioelectrical impedance analysis. Results: The PA values were lower in the patients [men(3.85±1.0)°, women(4.9±0.6)°] than the control group [men(6.0±1.0)°, women(5.4±0.9)°, P < 0.01]. Patients were more likely to have lower PA values than the control group. NRS 2002: no risk(relative risk(RR) 2.8, 95% confidence interval(CI) = 1.2 ~ 6.9), moderate risk(RR 3.9, 95% CI = 1.8 ~ 8.6) and severe risk(RR 4.2, 95% CI = 2.0 ~ 8.7); similar results were obtained by SGA: eutrophy(RR 2.5, 95% CI = 0.9 ~ 6.9), Moderate malnutrition(RR 4.4, 95% CI = 2.1 ~ 9.4), severe malnutrition(RR 3.9, 95%CI = 1.9 ~ 8.0); Patients with low PA values were more inclined to be hospitalized for more than 21 days compared with the control group(LOS ≥ 21 days, RR = 4.4, 95% CI = 2.2 ~ 2.8). Conclusion: There is a significant association between low PA values and nutritional risk and prolonged LOS. PA is helpful to identify patients who are at nutritional risk at hospital admission in order to provide an objective basis for determining the nutritional interventions of patients and judging the outcomes of the diseases.更多还原