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S. Unčanin, N. Serdarević, Nermina Klapuh, E. Hasković
3 1. 6. 2020.

Peritoneal Transport Characteristics at the Beginning and in Long Term Peritoneal Dialysis: a Single Center Experience

Introduction: Peritoneal dialysis (PD) is an established treatment for patients with end-srage kidney disease. The method was developed as an alternative to hemodialysis (HD) presenting a patient survival rate equivalent to HD and better preservation of residual renal function. Peritoneal dialysis (PD) patients have different peritoneal membrane permeability (transport) characteristics. High peritoneal membrane permeability is associated with increased mortality risk in the patient population. Aim: The aim of this study was to analyze the importance of the peritoneal membrane transport status in patients treated with continuous ambulatory peritoneal dialysis (CAPD). Methods: The study included 60 adult continuous ambulatory peritoneal dialysis (CAPD) patients, 29 male and 31 female, mean age 56.63±15.06 years. All patients treated with conventional glucose- based PD fluids. For the short term (within 3 month after start of PD) and long term (more than 12 months) peritoneal dialysis analysis of peritoneal transport characteristics has been used peritoneal functional test (PFT). With the test, categorisation of patients was possible into high (H), high-average (HA), low average (LA), and low (L) transporters. Results: Dialysate–to plasma ratio (D/P) of creatinine showed significantly increased over time (0.654±0.141 vs... 0.705±0.13, p<0.001). In multivariate analysis age, gender, time on dialysis, comorbid diseases, diabetes mellitus (DM), serum albumin, were considered as independent factors influencing the PFT. The high transporter group had higher D/Pcreat (H 0.84±0.03 vs... LA 0.57±0.05, p<0.001), higher proportion of man (H 100% vs... LA 39.5%, p<0.05), higher proportion of patients with comorbid diseases (H 60% vs... LA 20.9%, p<0.05), lower serum albumin concentration (H 29±6.0 vs... LA 37±5.2, p<0.001), lower D4/D0 glucose ( H 0.23±0.07 vs... LA 0.42±0.14, p<0.001), and lower drained volume (H 600±173 vs... LA 1016±355, p<0.001). Conclusion: The PFT was en easy, inexpensive, reliable test to assess peritoneal transport type and it also provided information about peritoneal clearance of solutes and ultrafiltration. Peritoneal transport type classification was recognized not only as aid for prescription, but also as a prognostic index.


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