Baseline serum interleukin-6 predicts cardiovascular events in incident peritoneal dialysis patients

Cho, Y., Johnson, D. W., Vesey, D. A., Hawley, C. M., Pascoe, E. M., Clarke, M. and Topley, Nicholas 2015. Baseline serum interleukin-6 predicts cardiovascular events in incident peritoneal dialysis patients. Peritoneal Dialysis International 35 (1) , pp. 35-42. 10.3747/pdi.2013.00272

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Abstract

Background: The utility of local and systemic interleukin 6 (IL-6) as a prognostic marker in incident peritoneal dialysis (PD) patients remains to be fully defined. The present study aimed to explore the capacity of systemic IL-6 concentrations to predict cardiovascular events (CVEs) and mortality in PD patients, and to evaluate the influence of neutral-pH PD solutions low in glucose degradation products (GDPs) on systemic IL-6. Methods: The study included 175 incident participants from the balANZ trial with at least one stored serum sample. A composite CVE score was used as the primary clinical outcome measure. Multilevel linear regression and Poisson regression models were fitted to describe, respectively, the trend of serum IL-6 over time and its ability to predict composite CVE. Results: A significant increase in serum IL-6 from baseline to 24 months was observed in the study population (mean difference: 1.68 pg/mL; p = 0.006). The type of PD solution received by patients exerted no significant effect on serum IL-6 (p = 0.12). Composite CVE was significantly and independently associated with baseline serum IL-6 (incidence rate ratio per picogram per milliliter: 1.06; 95% confidence interval: 1.02 to 1.10; p = 0.003). Conclusions: Baseline serum IL-6 was a significant independent predictor of composite CVE. Serum IL-6 concentrations increased with increasing PD duration and were not significantly modified with the use of biocompatible fluid over the study period. The present study is the first to link systemic IL-6 concentrations with CVE outcomes in incident PD patients.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine
Subjects:	R Medicine > R Medicine (General)
Uncontrolled Keywords:	Biocompatibility cardiovascular events glucose degradation products interleukin 6 mortality
Publisher:	International Society for Peritoneal Dialysis
ISSN:	0896-8608
Date of Acceptance:	4 January 2014
Last Modified:	11 Jun 2019 09:51
URI:	https://orca.cardiff.ac.uk/id/eprint/84645

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