营养风险筛查工具NRS-2002评估食管癌放疗患者营养状况的价值

目的 用营养风险筛查工具NRS-2002评价食管癌放疗患者营养状态,同时评价NRS-2002在这群中的应用价值。方法 回顾分析2010—2014年在浙江省肿瘤医院确诊为食管癌并接受放疗的 97例患者资料。Kaplan-Meier法计算生存率并Logrank检验差异,Pearson法分析NRS-2002评分与血液指标的相关性,Cox模型多因素预后分析。结果 27%患者在放疗前就存在营养风险,这种风险随放疗进行而逐渐升高。入院时NRS-2002评分≤3分、≥4分的 1年OS分别为91%、62%(P=0.010)。治疗期间NRS-2002评分最高分≤2分、≥3分的 1年OS分别为94%、78%(P=0.012),最低分≤3分、≥4分的 1年OS分别为91%、55%(P=0.018)。入院时、放疗第1周NRS-2002评分与前白蛋白有关(P=0.000、0.002),放疗第3周NRS-2002评分与白蛋白有关(P=0.036)。多因素分析发现食管癌TNM分期、治疗期间NRS-2002评分最高分是预后影响因素(P=0.001、0.005)。结论 食管癌放疗患者存在较高营养风险,NRS-2002评分可提示食管癌放疗患者的预后,可作为营养风险初筛工具。

Value of nutritional risk screening-2002 in evaluating nutritional status of patients with esophageal cancer undergoing radiotherapy

Objective To apply Nutritional Risk Screening-2002(NRS-2002) to perform primary screening for nutritional risk in patients with esophageal cancer who undergo radiotherapy, and assess their nutritional status, and to investigate the value of NRS-2002 in such patients.Methods A total of 97 patients who were diagnosed with esophageal cancer and underwent radiotherapy in Zhejiang Cancer Hospital from January 2010 to April 2014 were analyzed retrospectively.The Kaplan-Meier method was applied to analyze the difference in survival, and the chi-square test and the Pearson correlation analysis were applied to analyze the correlation between NRS-2002 score and blood parameters.Results Of all patients, 26.8%had nutritional risk before radiotherapy, which gradually increased with the progress of radiotherapy.The 1-year overall survival rates of the patients with NRS-2002scores of ≤3 and ≥4 on admission were 91.1%and 61.9%, respectively (P=0.010).As for the patients with the highest NRS-2002 scores of ≤2 and ≥3 during treatment, the 1-year overall survival rates were 94.2% and 77.5%, respectively (P=0.012).As for the patients with the lowest NRS-2002 scores of ≤3 and ≥4 during treatment, the 1-year overall survival rates were 91.3% and 54.5%, respectively ( P=0.018).The NRS-2002 score was correlated with prealbumin on admission and at week 1 of radiotherapy (P=0.000 and 0.002), and the NRS-2002 score was correlated with albumin at week 3 of radiotherapy (P=0.036).The multivariate analysis showed that the TNM stage of esophageal cancer and the highest NRS-2002 score during treatment were the independent prognostic factors in esophageal cancer (P=0.001 and 0.005).Conclusions The patients with esophageal cancer undergoing radiotherapy have high nutritional risk, and NRS-2002 score is the independent prognostic factor in these patients and can be used as a tool for primary screening for nutritional risk.