Abstract
The osmotic gradient is the main driving force for ultrafiltration (UF) in continuous ambulatory peritoneal dialysis (CAPD). Depending on glucose absorption, its changes over a period of time could influence the plasma refilling rate. The aim of this study was to evaluate the influence of changes in the plasma refilling rate obtained by dialysates of different osmolalities upon the rate of UF. Stable CAPD patients were studied twice during a 4-hour exchange 2 weeks apart with dialysate containing 1.5% and 4.25% glucose, respectively. UF was estimated by the autologous hemoglobin dilution method every 30 minutes. Hematocrit and colloidosmotic pressure (COP) decrease when using 1.5% glucose dialysate, reflecting a rise in plasma water mediated by the plasma refilling rate. This water shift is greater than the osmotic gradient generated between peritoneal and intravascular compartments as reflected by a low UF rate. However, when the osmotic gradient increases by means of 4.25% glucose dialysate, the plasma refilling rate is efficiently counter-balanced by UF.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
