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. 2021 Jun;24(2):296-300.
doi: 10.1007/s10047-020-01215-7. Epub 2020 Oct 3.

Preserved peritoneal function by short-term two-day peritoneal rest in hemodialysis combination therapy patients

Atsushi Ueda  1   2 , Kei Nagai  3 , Kunihiro Yamagata  3
Affiliations

Preserved peritoneal function by short-term two-day peritoneal rest in hemodialysis combination therapy patients

Atsushi Ueda et al. J Artif Organs. 2021 Jun.

Abstract

Several reports have demonstrated that peritoneal rest (PR) is considered to preserve the peritoneal function in peritoneal dialysis (PD) patients. However, there has been no report that examines the peritoneal permeability before and after a short-term PR of two days. We examined the effect of the two-day PR on peritoneal permeability. We observed and compared the daily PD ultrafiltration changes in the four PD and hemodialysis (HD) combination patients from the start of dialysis therapy throughout the total observation period of each case. Next, 6 months after the initiation of dialysis therapy we performed a set of peritoneal equilibrium tests (PET) before and after the 2-day PR. D/P creatinine, daily urine volume, daily ultrafiltration volume in PD, weekly residual renal creatinine clearance, and weekly PD creatinine clearance were measured. The daily PD ultrafiltration volume increased significantly after the 2-day PR, and gradually decreased over the last four days throughout the observation period in each patient. In the PET results, D/P creatinine in all patients decreased after the short-term PR, and accordingly the peritoneal ultrafiltration volume increased. However, urine volume, residual renal creatinine clearance, and peritoneal creatinine clearance did not change. The peritoneal permeability clearly decreased after the short-term PR. The repeated improvement in the PD ultrafiltration volume after the short-term PR implies that the peritoneal permeability alteration might be due to a reversible functional change in the initial dialysis period. These results suggest that a short-term PR may preserve the peritoneal function.

Keywords: Peritoneal dialysis; Peritoneal permeability; Peritoneal resting; Peritoneal ultrafiltration.

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