Abstract:
BACKGROUND:During continuous venovenous haemofiltration (CVVH), regional anticoagulation with citrate may be superior to heparin in terms of biocompatibility, since heparin as opposed to citrate may activate complement (reflected by circulating C5a) and induce neutrophil degranulation in the filter and myeloperoxidase (MPO) release from endothelium. METHODS:No anticoagulation (n = 13), unfractionated heparin (n = 8) and trisodium citrate (n = 17) regimens during CVVH were compared. Blood samples were collected pre- and postfilter; C5a, elastase and MPO were determined by ELISA. Additionally, C5a was also measured in the ultrafiltrate. RESULTS:In the heparin group, there was C5a production across the filter which most decreased over time as compared to other groups (P = 0.007). There was also net production of elastase and MPO across the filter during heparin anticoagulation (P = 0.049 or lower), while production was minimal and absent in the no anticoagulation and citrate group, respectively. During heparin anticoagulation, plasma concentrations of MPO at the inlet increased in the first 10 minutes of CVVH (P = 0.024). CONCLUSION:Citrate confers less filter-induced, potentially harmful complement activation and neutrophil degranulation and less endothelial activation than heparin when used for anticoagulation during continuous venovenous haemofiltration in critically ill patients.
journal_name
BMC Nephroljournal_title
BMC nephrologyauthors
Schilder L,Nurmohamed SA,ter Wee PM,Paauw NJ,Girbes AR,Beishuizen A,Beelen RH,Groeneveld ABdoi
10.1186/1471-2369-15-19subject
Has Abstractpub_date
2014-01-17 00:00:00pages
19issn
1471-2369pii
1471-2369-15-19journal_volume
15pub_type
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