Grzegorzewska A E, Dobrowolska-Zachwieja A, Chmurak A
Department of Nephrology, Karol Marcinkowski University of Medical Sciences, Poznań, Poland.
Adv Perit Dial. 1997;13:150-4.
The purpose of our study was to evaluate the adequacy of nutrition intake in continuous ambulatory peritoneal dialysis (CAPD) patients. In 34 patients, diet histories were taken every 1-3 months simultaneously with adequacy parameter estimations and total nitrogen measurements in dialysate and urine. The results were normalized to 1 kg of ideal (IBM) or lean (LBM) body mass. During the 2-year study period, there was a decrease in the intake (g/kg IBM/day) of carbohydrates (4.2 +/- 1.5 vs 3.4 +/- 1.2), fat (1.3 +/- 0.6 vs 0.8 +/- 0.2), and protein (1.18 +/- 0.43 vs 0.85 +/- 0.11); daily protein intake values were higher than those of protein catabolic rate (0.91 +/- 0.19 vs 0.77 +/- 0.17). Nitrogen balance was positive (6.6 +/- 2.1 vs 1.8 +/- 2.7 g/day). The daily energy intake (40 +/- 11 vs 32 +/- 13 kcal/kg IBM/day) did not show any tendency of increasing or decreasing, stable or otherwise. The mean intake of vitamins and minerals (except Na, K, P) was less than in healthy persons; moreover, in most cases vitamin intake did not reach values recommended for CAPD patients. Protein, mineral, and vitamin intake is usually unsatisfactory in CAPD patients. However, a positive nitrogen balance can be obtained when the energy intake is close to the optimal value of 35 kcal/kg/day.
我们研究的目的是评估持续性非卧床腹膜透析（CAPD）患者营养摄入的充足性。对34例患者每1 - 3个月记录一次饮食史，同时进行充足性参数评估以及测定透析液和尿液中的总氮量。结果按照每1千克理想体重（IBM）或瘦体重（LBM）进行标准化。在为期2年的研究期间，碳水化合物（4.2±1.5对3.4±1.2，单位：克/千克IBM/天）、脂肪（1.3±0.6对0.8±0.2）和蛋白质（1.18±0.43对0.85±0.11）的摄入量均有所下降；每日蛋白质摄入量高于蛋白质分解代谢率（0.91±0.19对0.77±0.17）。氮平衡为正值（6.6±2.1对1.8±2.7克/天）。每日能量摄入量（40±11对32±13千卡/千克IBM/天）未显示出增加或减少的趋势，保持稳定。维生素和矿物质（钠、钾、磷除外）的平均摄入量低于健康人；此外，在大多数情况下，维生素摄入量未达到CAPD患者推荐值。CAPD患者的蛋白质、矿物质和维生素摄入量通常不达标。然而，当能量摄入量接近35千卡/千克/天的最佳值时，可以实现正氮平衡。
