Regional citrate anticoagulation in continuous venovenous haemodiafiltration using commercial solutions.

NEPHROLOGY DIALYSIS TRANSPLANTATION(2004)

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摘要
Background. Treatment with trisodium citrate provides an effective means of regional anticoagulation during continuous renal replacement therapy (CRRT). We evaluated the efficacy, safety and cost of a regional citrate anticoagulation protocol using commercial solutions in 17 critically ill patients treated with continuous venovenous haemodiafiltration (CVVHDF). We performed a total of 22 sessions. Methods. We delivered an A.C.D-A(541)(R) solution containing 112.9 mmol/l disodium citrate (3.22%) at a median rate of 260 (190-280) ml/h via the pre-filter port of a COBE PRISMA with an AN-69 dialyser, while adjusting the 2 rate to maintain post-filtered ionized calcium (iCa(2+)) between 0.25 and 0.4 mmol/l. Plasma iCa(2+) was maintained at > 1.1 mmol/l by infusion of calcium chloride at a median rate of 1.70 (1.36-2.27) mmol/h. The dialysate was easily modified according to the acid-base status of each patient. Both replacement and dialysate solutions were delivered at 1200 ml/h. Each session was scheduled for 48 h and biological parameters were assessed every 6 h. Results. The mean dialyser survival was 39 +/- 11 h (median 41.5 h; range 13-48 h). We observed dialyser clotting in four cases (18%). There were no bleeding events or modifications of coagulation parameters. The citrate solution, replacement solution and dialysate were obtained as commercial products. Both the replacement and dialysate solutions contained calcium. The extra cost of this technique was 25 is not an element of/day as compared to anticoagulation with heparin. Conclusions. We designed an efficient method of regional citrate anticoagulation for CVVHDF by using commercial solutions. The monitoring of patients was as intensive as during heparin anticoagulation for CRRT. Because of the higher cost of this method, it should be proposed only for patients with high bleeding risk.
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关键词
bleeding complications,citrate,commercial solutions,critically ill patients,haemodiafiltration,regional anticoagulation
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