Customized Citrate Anticoagulation versus No Anticoagulant in Continuous Venovenous Hemofiltration in Critically Ill Patients with Acute Kidney Injury: A Prospective Randomized Controlled Trial
Issued Date
2023-01-01
Resource Type
ISSN
02535068
eISSN
14219735
Scopus ID
2-s2.0-85152128306
Pubmed ID
36858026
Journal Title
Blood Purification
Rights Holder(s)
SCOPUS
Bibliographic Citation
Blood Purification (2023)
Suggested Citation
Ratanarat R., Phairatwet P., Khansompop S., Naorungroj T. Customized Citrate Anticoagulation versus No Anticoagulant in Continuous Venovenous Hemofiltration in Critically Ill Patients with Acute Kidney Injury: A Prospective Randomized Controlled Trial. Blood Purification (2023). doi:10.1159/000529076 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/82709
Title
Customized Citrate Anticoagulation versus No Anticoagulant in Continuous Venovenous Hemofiltration in Critically Ill Patients with Acute Kidney Injury: A Prospective Randomized Controlled Trial
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
Introduction: The use of anticoagulants during continuous renal replacement therapy (CRRT) is essential. Regional citrate anticoagulation (RCA) is recommended rather than systemic heparinization to prolong the filter's lifespan in patients at high risk of bleeding. However, commercial citrate is expensive and may not be available in resource-limited areas. The objective of this study is comparing filter life between our locally made customized RCA and no anticoagulation. The primary outcomes were the first circuit life in hours and the number of filters used within the first 72 h of therapy. Methods: We conducted a single-center prospective randomized controlled trial in critically ill patients requiring CRRT. The participants were randomized to receive continuous venovenous hemofiltration (CVVH) with either customized RCA or no anticoagulant. Results: Of 76 patients, 38 were randomized to receive customized RCA and 38 to receive CVVH without anticoagulant. There was no significant difference in baseline characteristics between the two groups. Compared to anticoagulant-free group, the median circuit life of customized RCA group was significantly longer [44.9 (20.0, 72.0) vs. 14.3 (7.0, 22.0) hours; p < 0.001]. The number of filters used within 72 h was significant lower [2.0 (1.0, 2.0) vs. 2.5 (1.0, 3.0); p < 0.015]. RCA was prematurely discontinued in 5 patients due to citrate accumulation (2 cases) and severe metabolic acidosis requiring higher dose of CVVH (3 cases). No differences in bleeding complications were observed (p = 0.99). Conclusion: Customized citrate-based replacement solution improved filter survival in CVVH compared to anticoagulant-free strategy. This regimen is safe, feasible, and suitable for low- to middle-income countries.