低蛋白饮食对腹膜透析患者氮平衡的影响  被引量:2

Effect of low protein diet on nitrogen balance in peritoneal dialysis patients

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作  者:孙维兰[1] 钱家麒[1] 倪兆慧[1] 曹励欧[1] 王琴[1] 牟姗[1] 胡春华[1] 万燕萍[1] 张晓敏[1] 姚强[1] 

机构地区:[1]上海交通大学医学院附属仁济医院肾内科上海市腹膜透析研究中心,200001

出  处:《中华肾脏病杂志》2009年第6期425-429,共5页Chinese Journal of Nephrology

摘  要:目的观察低蛋白饮食对腹膜透析(腹透)患者氮平衡及营养状况的影响,同时探寻保持腹透患者氮平衡的最低膳食蛋白摄入量(DPI)。方法将34例规律性腹透1个月以上、情况稳定的患者随机分为A、B、C3组,DPI分别为1.2、0.9和0.6g·kg^-1·d^-1。在研究第1、第7和第10天检测各组的氮平衡状况以及白蛋白、前白蛋白、钙、磷等指标。结果在第7、10天,A、B、C组平均DPI分别为(1.18±0.05)、(0.87±0.02)、(0.66±0.03)g·kg^-1·d^-1(P〈0.01);平均能量摄入量(DEI)分别为129.29(117.57~133.89)、111.71(100.42~133.47)、146.8(128.03~163.18)kJ·kg^-1·d^-1;3组均呈正氮平衡,分别为2.99(2.15~4.72)、1.20(0.59~1.89)、0.24(-0.87~1.27)g。A组BUN和血磷有升高趋势,但差异无统计学意义。C组BUN在第7、10天显著下降(P〈0.01)。氮平衡与蛋白摄入量呈正相关(r=0.712,P〈0.01)。结论在保证足够热量的基础上,规律腹透患者每天摄入0.65g/kg的蛋白加上腹透液中丢失的蛋白量,既能保持氮平衡,又不增加透析的负荷。Objective To observe the influence of different dietary protein intake (DPI) on nitrogen balance and nutritional indices in peritoneal dialysis (PD) patients, and explore the minimal DPI to maintain nitrogen balance. Methods Thirty-four PD patients were randomly divided into group A, B and C with DPI as 1.2, 0.9 and 0.6 g·kg-1·d-1 respectively. All the patients admitted into our hospital and completed a 10-day assessment for nitrogen balance, as well as nutritional status including serum albumin (Alb), pre-albumin at baseline, the 7th and 10th day. Results The DPI of group A, B and C was (1.18±0.05), (0.87±0.02), (0.66±0.03) g·kg-1·d-1, whose differences were significant (P〈0.01). The dietary energy intake (DEI) was 129.29 (117.57- 133.89), 111.71 (100.42-133.47), 146.86 (128.03-163.18) kJ·kg^-1·d^-1 respectively. Nitrogen balance was positive in group A, B, C [2.99 (2.15-4.72) g, 1.20(0.59-1.89) g, 0.24 (-0.87- 1.27) g]. The BUN decreased at the 7th and lOth day (P〈0.01) in group C. The BUN and phosphorus in group A increased, but without significant difference as compared to baseline. No significant differences of nutritional status were found among three groups throughout the trial. Conclusion Minimal DPI 0.65 g·kg^-1·d^-1 plus the supplement of protein loss in dialysate can maintain the nitrogen balance in peritoneal dialysis patients.

关 键 词:膳食 限制蛋白质 腹膜透析 氮平衡 营养状况 

分 类 号:R459.5[医药卫生—治疗学]

 

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