Effect of Nutrition on Arterial Stiffness in Peritoneal Dialysis Patients

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Original Report: Patient-Oriented, Translational Research

Effect of Nutrition on Arterial Stiffness in Peritoneal Dialysis Patients
Wen Tang, Li-Tao Cheng, Xin-Hong Lu, Tao Wang

Division of Nephrology, Peking University Third Hospital, Beijing, PR China

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Am J Nephrol 2009;30:120-125 (DOI: 10.1159/000206697)

Background: A poor nutritional state is associated with an increased risk of cardiovascular events in end-stage renal disease. It is unclear whether malnutrition itself can induce cardiovascular disease (CVD). We examined the impact of nutritional status on patients' arterial stiffness in peritoneal dialysis (PD) patients. Methods: We prospectively enrolled 121 stable PD patients and evaluated them at baseline and 1 year later. According to patients' Subjective Global Assessment (SGA) changes from baseline to the end, patients were divided into four groups: group 1, SGA from A to B; group 2, SGA remained A, group 3, SGA changed from B to A, and group 4, SGA remained B. Arterial stiffness was assessed by pulse-wave velocity (PWV). Results: At baseline, PWV in well-nourished patients were lower than malnourished patients (p < 0.05). One year later, in group 1, as compared with baseline, PWV increased significantly (p < 0.001) whereas handgrip strength (HGS), daily dietary protein intake and dietary energy intake decreased significantly. In group 3, PWV decreased significantly (p < 0.05) whereas HGS and ALB increased significantly. In groups 1 and 3, lgCRP level remained unchanged. Conclusion: There was a closely longitudinal association between nutritional status and arterial stiffness in PD patients, suggesting a possible impact of nutritional status on arterial function.

Copyright © 2009 S. Karger AG, Basel

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Tao Wang, MD, PhD
Division of Nephrology, Peking University Third Hospital
49 North Garden Rd, Haidian District
Beijing 100083 (PR China)
Tel. +86 10 8226 6699 8850, Fax +86 10 8290 7314, E-Mail wangt@bjmu.edu.cn

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Received: October 14, 2008
Accepted: January 7, 2009
Published online: February 27, 2009
Number of Print Pages : 6
Number of Figures : 1, Number of Tables : 2, Number of References : 27

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