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KMID : 0359920090280030205
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Korean Journal of Nephrology
2009 Volume.28 No. 3 p.205 ~ p.210
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Saline Versus Nafamostat Mesilate Anticoagulation for Continuous Veno-venous Hemofiltration (CVVH) in Patients at High Risk of Bleeding: A Prospective Study
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Park In-Il
Choi Myung-Jin
Yoon Jong-Woo
Oh Ji-Eun
Seo Jang-Won
Kim Sung-Gyun
Lee Young-Ki
Kim Hyug-Jik
Noh Jung-Woo
Koo Ja-Ryong
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Abstract
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Purpose: In patients with a higherrisk of bleeding, performing CVVH with heparin or saline anticoagulation is associated with increased bleeding or thrombotic risk. Nafamostat mesilate (NM), a serine proteinase inhibitor, while inhibiting various clotting factors in filter circuit, is characterized by short half life resulting in little systemic anticoagulation effect. Accordingly, we prospectively evaluated the anticoagulant effect and safety of NM in patients with a higher risk of bleeding who underwent CVVH.
Methods: Among 43 patients with high risk of bleeding [defined by (1) INR>2, aPTT>20 sec, platelet< 50,000/mm 3 or (2) ongoing bleeding, major hemorrhage/surgery in the last 48 hrs], 20 patients were treated with continuous nafamostat mesilate infusion (10-20 mg/hr) and remaining 23 patients were treated with saline bolus infusion (100 mLq 1 hr) for CVVH anticoagulation.
Results: As compared with saline bolus group, mean circuit life was significantly longer in NM infusion group (28.73±12.67 versus 16.34±7.86, p=0.001). There was no significant bleeding complication in either saline bolus or NMinfusion group. In subgroup analysis according to the presence of abnormal coagulation status (defined by INR>2, aPTT>20 sec, platelet<50,000/mm 3 ), the positive effect of NM on circuit lifespan persisted irrespective of the coagulation status.
Conclusion: As compared with saline bolus, nafamostat mesilate infusion was associated with higher CVVH filter life. In patients with high risk of bleeding, nafamostat mesilate can be used as a safe and effective anticoagulant for CVVH with acceptable filter life.
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KEYWORD
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Nafamostat, Anticoagulation, Venovenous hemofiltration
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