PMID- 27441664 OWN - NLM STAT- MEDLINE DCOM- 20170731 LR - 20190212 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 11 IP - 7 DP - 2016 TI - Compatibility of Injectable Anticoagulant Agents in Ethanol; In Vitro Antibiofilm Activity and Impact on Polyurethane Catheters of Enoxaparin 400 U/mL in 40% v/v Ethanol. PG - e0159475 LID - 10.1371/journal.pone.0159475 [doi] LID - e0159475 AB - BACKGROUND AND OBJECTIVES: Interdialytic lock solutions should maintain catheter patency and prevent catheter infections. We aimed to determine in which conditions injectable anticoagulant agents (IAAs) combined with ethanol are compatible and to assess the antibiofilm activity of the selected combination and its effects on dialysis catheters (DC). METHODS: The solubility and compatibility of unfractionated heparin (UFH), low molecular weight heparins (LMWHs), heparinoids and fondaparinux (50 to 2,500 U/mL) in 30 to 70% ethanol were determined by visual observation. The stability of enoxaparin in ethanol and the ethanol content were assessed by high performance liquid chromatography (HPLC) and titrimetric control, respectively. The bactericidal effect was determined on 24h-old biofilms embedded in silicone-DC. The integrity of polyurethane-DC immersed in anticoagulant-ethanol was assessed by gas chromatography-mass spectrometry (GC-MS) and compared with previously published results. RESULTS: The compatibility of IAAs and ethanol varied according to IAA type and concentration, and ethanol content. UFH in 40% ethanol was not compatible, whatever the UFH concentration used. Established limits of compatibility of enoxaparin, nadroparin, dalteparin and tinzaparin in 40% ethanol were 1350, 575, 307 and 207 U/ml, respectively, and up to 300 U/ml for danaparoid and 1 mg/mL for fondaparinux. Enoxaparin 400 U/mL in 40% ethanol (Enox/Eth) eradicated biofilm after 4 hours of exposure for Staphylococcus epidermidis, Pseudomonas aeruginosa and Candida albicans and after 24 hours for Klebsiella pneumoniae and S. aureus. Aliphatic carbonate and alcohol compounds were released by polyurethane-DC after Enox/Eth exposure, as after 40% ethanol or saline exposure. There was no significant difference between the amounts released after 30 minutes of exposure to Enox/Eth and 15 days to saline. CONCLUSIONS: A 40% ethanol solution can be combined with all IAAs but UFH. Enox/Eth was effective as an anti-biofilm agent with minor impacts on DC integrity and could be a useful interdialytic lock solution. FAU - Balestrino, Damien AU - Balestrino D AD - UMR CNRS 6023, Laboratoire Microorganismes: Genome et Environnement, Clermont Universite, Universite d'Auvergne, Clermont Ferrand, 63000, France. AD - Universite d'Auvergne, Faculte de Pharmacie, Laboratoire de Bacteriologie, F- 63001, Clermont-Ferrand, France. FAU - Quintana, Mercedes AU - Quintana M AD - Universite d'Auvergne, Faculte de Pharmacie, Laboratoire de Chimie analytique et spectrometrie de masse, F- 63001, Clermont-Ferrand, France. AD - Inserm, UMR 990, IMTV, F-63005, Clermont-Ferrand, France. FAU - Charbonnel, Nicolas AU - Charbonnel N AD - Universite d'Auvergne, Faculte de Pharmacie, Laboratoire de Bacteriologie, F- 63001, Clermont-Ferrand, France. FAU - Forestier, Christiane AU - Forestier C AD - UMR CNRS 6023, Laboratoire Microorganismes: Genome et Environnement, Clermont Universite, Universite d'Auvergne, Clermont Ferrand, 63000, France. AD - Universite d'Auvergne, Faculte de Pharmacie, Laboratoire de Bacteriologie, F- 63001, Clermont-Ferrand, France. FAU - Lartigue, Claire AU - Lartigue C AD - Inserm, UMR 990, IMTV, F-63005, Clermont-Ferrand, France. FAU - Souweine, Bertrand AU - Souweine B AD - UMR CNRS 6023, Laboratoire Microorganismes: Genome et Environnement, Clermont Universite, Universite d'Auvergne, Clermont Ferrand, 63000, France. AD - Reanimation Medicale, Hopital Gabriel Montpied, CHU-Clermont-Ferrand, 63000, France. LA - eng PT - Journal Article DEP - 20160721 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Albumins) RN - 0 (Anticoagulants) RN - 0 (Enoxaparin) RN - 0 (Heparin, Low-Molecular-Weight) RN - 0 (Polyurethanes) RN - 0 (Solutions) RN - 3K9958V90M (Ethanol) SB - IM MH - Albumins/metabolism MH - Anticoagulants/*pharmacology MH - Biofilms/*drug effects MH - *Catheters MH - Chemical Fractionation MH - Chemical Precipitation MH - Chromatography, High Pressure Liquid MH - Enoxaparin/*pharmacology MH - Ethanol/*chemistry MH - Gas Chromatography-Mass Spectrometry MH - Hemolysis/drug effects MH - Heparin, Low-Molecular-Weight MH - Humans MH - *Injections MH - Polyurethanes/*pharmacology MH - Solubility MH - Solutions PMC - PMC4956118 COIS- Competing Interests: The authors have declared that no competing interest exists. EDAT- 2016/07/22 06:00 MHDA- 2017/08/02 06:00 PMCR- 2016/07/21 CRDT- 2016/07/22 06:00 PHST- 2016/05/24 00:00 [received] PHST- 2016/06/08 00:00 [accepted] PHST- 2016/07/22 06:00 [entrez] PHST- 2016/07/22 06:00 [pubmed] PHST- 2017/08/02 06:00 [medline] PHST- 2016/07/21 00:00 [pmc-release] AID - PONE-D-16-20619 [pii] AID - 10.1371/journal.pone.0159475 [doi] PST - epublish SO - PLoS One. 2016 Jul 21;11(7):e0159475. doi: 10.1371/journal.pone.0159475. eCollection 2016.