Practice Point

Nature Clinical Practice Nephrology (2006) 2, 186-187
doi:10.1038/ncpneph0107  
Received 23 September 2005 | Accepted 16 December 2005

Can a 1-h peritoneal equilibration test accurately assess free water transport in peritoneal dialysis patients?

Peter G Blake

Correspondence Division of Nephrology, Room 2937F, London Health Sciences Centre, Victoria Campus, Westminster Site, 800 Commissioners Road E, London, ON N6A 4G5, Canada

Email
 peter.blake@lhsc.on.ca

This article has no abstract so we have provided the first paragraph of the full text.

The ultrafiltrate in peritoneal dialysis patients using standard glucose-based solutions has two principal components—water that travels through the peritoneal capillary small pores accompanied by proportionate amounts of small solutes, and water that travels, free of solute, via the peritoneal capillary AQUAPORINS. To date, there has been no easy way to dissect out the relative contributions of these two pathways to peritoneal fluid removal, either in stable peritoneal dialysis patients or in those with UFF.

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