The Effect of On-line Hemodiafiltratrion on Nutritional Status and Body Composition: A Prospective, Controlled, Pilot Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 33
- 主要终点
- Intracellular water in liters
研究概览
简要总结
Compared to conventional hemodialysis (HD), on-line hemodiafiltration (OL-HDF) achieves a more efficient removal of uremic toxins and reduces inflammation, which could favourably affect nutritional status. The aim of this study was to evaluate the 1-year effect of OL-HDF on nutritional status and body composition in prevalent HD patients.
详细描述
Postdilution on-line hemodiafiltration (OL-HDF) is considered the most efficient renal replacement treatment modality. Compared with conventional hemodialysis (HD), OL-HDF enables a better removal of middle molecular weight uremic toxins by combining convective and diffusive clearance. Although higher convection volume exchange has been associated with an increased survival advantage for dialysis patients, the mechanisms by which OL-HDF may improve outcomes remain unknown.
On the basis of improved toxin removal, a potential benefit of OL-HDF on nutritional status has been postulated. However, evidence on the effect of OL-HDF on nutritional status is scarce and at times conflicting. Some observational and interventional studies have suggested that OL-HDF is associated with improved nutritional parameters; others have found no effect; and one study even reported negative effects of OL-HDF on nutritional status. The majority of these observations come from cohort studies, non-controlled interventions and/or secondary analysis of controlled trials. Further, there are currently no data examining the plausible effect of postdilution OL-HDF on body composition. To clarify this important knowledge gap, this prospective, controlled, study evaluated the effects of high volume postdilution OL-HDF on nutritional status and body composition in prevalent HD patients.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •being over 18 yr old; receiving stable high-flux hemodialysis treatment for at least 3 mo (Kt/Vurea ≥1.2 and hemodialysis performed 3.0 to 6.0 h, three times weekly), and agreed to give informed consent.
排除标准
- •malabsorption syndrome; active malignant disease or other critical illnesses; or treated with steroids or antiandrogens.
结局指标
主要结局
Intracellular water in liters
时间窗: Baseline, 4, 8, and 12 months.
Change from baseline to end of study in intracellular water in liters, measured quarterly throughout the 12-month intervention. Intracellular water was assessed by multi-frequency bioimpedance spectroscopy (Fresenius Medical Care) by experienced research staff blinded to all clinical and biochemical data of the patients. In order to control for potential variability and the effect of overhydration, all bioimpedance analyses were performed before a mid-week dialysis session.
Lean tissue mass in kilograms
时间窗: Baseline, 4, 8, and 12 months.
Change from baseline to end of study in lean tissue mass in kilograms, measured quarterly throughout the 12-month intervention. Lean tissue mass was assessed by multi-frequency bioimpedance spectroscopy (Fresenius Medical Care) by experienced research staff blinded to all clinical and biochemical data of the patients. In order to control for potential variability and the effect of overhydration, all bioimpedance analyses were performed before a mid-week dialysis session.
Body cell mass in kilograms
时间窗: Baseline, 4, 8, and 12 months.
Change from baseline to end of study in body cell mass in kilograms, measured quarterly throughout the 12-month intervention. Body cell mass was assessed by multi-frequency bioimpedance spectroscopy (Fresenius Medical Care) by experienced research staff blinded to all clinical and biochemical data of the patients. In order to control for potential variability and the effect of overhydration, all bioimpedance analyses were performed before a mid-week dialysis session.
次要结局
- Serum prealbumin levels in milligrams per deciliter(Baseline, 4, 8, and 12 months.)
研究者
Pablo Molina
Principal Investigator
Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana