Though on-line intermittent hemodiafiltration (OL-IHDF) is a routine therapy for chronic dialysis patients, it is not yet widespread used in critically ill patients. This study was undergone to evaluate efficiency and tolerance of OL-IHDF and to appreciate inflammatory consequences of its use in intensive care unit (ICU)-acute kidney injury (AKI) patients.
In this prospective cohort study conducted in a medical academic ICU in France, 30 AKI patients who underwent OL-IHDF were included. OL-HDF used an ultrapure water production: AQ 1250 line with double reverse osmosis, a generator 5008 with a 1.8m2 dialyzer with Polysulfone membrane (Fresenius Medical Care). Tolerance and efficiency of OL-IHDF were evaluated as well as its inflammatory risk by the measurement of plasma concentrations of proinflammatory (Interleukin 6, IL1β, IL8, Interferon γ) and anti-inflammatory (IL4, IL10) cytokines, Epidermal growth factor (EGF), Vascular Endothelial growth factor (VEGF) and Macrophage Chemoattractive Protein-1 (MCP-1) before and after sessions.
Intradialytic hypotensive events were observed during 27/203 OL-IHDF sessions accounting for a mal-tolerated session’s rate at 13.3%. Mean delivered urea Kt/V per session was 1.12 ± 0.27 with a percentage of reduction for urea, creatinine, β2-microglobulin and cystatine C at 61.6 ± 8.8%, 55.3 ± 6.7%, 51.5 ± 8.7% and 44.5 ± 9.8% respectively. Production of superoxide anion by leukocytes, mean levels of pro- and anti-inflammatory cytokines and plasmatic concentrations of EGF, VEGF and MCP-1 did not differ before and after OL-IHDF sessions. We observed however a significant decrease of mean TNFα plasmatic concentrations from 8.2 ± 5.8 to 4.8 ± 3.5 pg/ml at the end of OL-IHDF.
OL-IHDF was not associated with an increase in pro and anti-inflammatory cytokines, oxidative stress or EGF, VEGF and MCP-1 in AKI patients and seems therefore a secure and feasible modality in ICUs.
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- On-line hemodiafiltration did not induce an overproduction of oxidative stress and inflammatory cytokines in intensive care unit-acute kidney injury
Anne Marie Dupuy
Marie Christine Picot
Jean Paul Cristol
- BioMed Central
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