L'anticoagulació en la teràpia continua de reemplaçament renal. Seguretat i eficàcia dels citrats versus heparina: revisió bibliogràfica
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Introduction: Continued renal replacement therapy has long been used to address acute
kidney disease, a pathology with a high number of patients admitted to an ICU. The main
problem of this therapy is the coagulation of the filters and circuits, indispensable components
for the treatment. Two major anticoagulants are used to prevent this situation: heparin and
citrates. Although heparin is the most commonly used, user friendly and older drug, citrates
have recently begun to be recommended as first-line anticoagulants, thus outperforming
heparin. Regional citrate anticoagulation (RCA) is a treatment that is still under debate and its
implementation is considered complex. However, the scientific community observed many
benefits and a positive impact on the use of ARC compared to heparin.
Objective: To determine the effectiveness of systemic anticoagulation with heparin versus
regional citrate anticoagulation.
Methodology: A bibliographic review was performed using the databases PubMed, Web of
science, BMC, Cochrane Library and the Trip medical database during January and February
2020. Then, the published articles in these databases during the last 10 years were selected.
Results: A total of 15 articles that met the inclusion criteria were selected, of which 2 are
literature reviews, 2 meta-analyses, 1 systematic review, 4 randomized clinical trials and 6
observational studies.
Conclusions: Despite existing discussions, it seems clear that citrate treatment offers
numerous advantages in comparison to systemic heparin treatment. On the one hand, citrates
increase treatment efficiency, since they allow to extend materials shelf-life and this reduces
the used material. In addition, citrate treatment enables to reduce treatment interruptions,
resulting in a more rigorous treatment pattern for the patients. On the other hand, citrate
treatment is considered safe, since it drastically reduces the risk of bleeding as well as the
incidence of treatment-derived metabolic disorders. Finally, a small incidence of citrate
accumulation and hyponatremia were observed, risks that healthcare professionals are
currently facing