Quantification of free water transport in peritoneal dialysis

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Presentation transcript:

Quantification of free water transport in peritoneal dialysis Watske Smit, Dirk G. Struijk, Marja M. Ho-Dac-Pannekeet, Raymond T. Krediet Kidney International Volume 66, Issue 2, Pages 849-854 (August 2004) DOI: 10.1111/j.1523-1755.2004.00815.x Copyright © 2004 International Society of Nephrology Terms and Conditions

Figure 1 Fluid profile for all 40 patients. Total transcapillary ultrafiltration during the 4-hour dwell (□), transport through the small pores (▪), and free water transport (•). Kidney International 2004 66, 849-854DOI: (10.1111/j.1523-1755.2004.00815.x) Copyright © 2004 International Society of Nephrology Terms and Conditions

Figure 2 Fluid profiles for the patients with normal ultrafiltration (left) and with ultrafiltration failure (right). Total transcapillary ultrafiltration during the 4-hour dwell (□), transport through the small pores (•) and free water transport (○). Kidney International 2004 66, 849-854DOI: (10.1111/j.1523-1755.2004.00815.x) Copyright © 2004 International Society of Nephrology Terms and Conditions

Figure 3 Correlation between the different methods to assess free water transport. The correlation between free water transport as a percentage of the total fluid transport in the first hour and the difference in net ultrafiltration between a 3.86% and a 1.36% glucose exchange (left). The correlation between free water transport as a percentage of the total fluid transport in the first hour and the maximum dip in D/P sodium using a 3.86% glucose solution (right). Kidney International 2004 66, 849-854DOI: (10.1111/j.1523-1755.2004.00815.x) Copyright © 2004 International Society of Nephrology Terms and Conditions

Figure 4 Bland and Altman plot of the differences between the calculations of free water transport in the first hour of a dwell versus their means. An underestimation of free water transport of about 10% was present when no correction for sodium diffusion is made. No systematic errors were found. Kidney International 2004 66, 849-854DOI: (10.1111/j.1523-1755.2004.00815.x) Copyright © 2004 International Society of Nephrology Terms and Conditions