PMID- 37321244 OWN - NLM STAT- MEDLINE DCOM- 20231201 LR - 20231201 IS - 2567-689X (Electronic) IS - 0340-6245 (Linking) VI - 123 IP - 12 DP - 2023 Dec TI - Factors Influencing Anti-Xa Assays: A Multicenter Prospective Study in Critically Ill and Noncritically Ill Patients Receiving Unfractionated Heparin. PG - 1105-1115 LID - 10.1055/s-0043-1770096 [doi] AB - BACKGROUND: The presence of dextran sulfate (DS) in reagents and the type of blood collection tube (citrate/citrated-theophylline-adenosine-dipyridamole [CTAD]) can lead to discrepancies between unfractionated heparin (UFH) anti-Xa levels. OBJECTIVES: To evaluate the extent of the effect (1) of different reagents containing or not containing DS and (2) of the blood collection tubes, on UFH anti-Xa levels, in various clinical situations (NCT04700670). METHODS: We prospectively included patients from eight centers: group (G)1, cardiopulmonary bypass (CPB) after heparin neutralization (n = 39); G2, cardiothoracic intensive care unit (ICU) after CPB (n = 35); G3, medical ICU (n = 53); G4, other medical inpatients (n = 38). Blood was collected into citrated and CTAD tubes. Chromogenic anti-Xa assays were centrally performed, using seven reagent/analyzer combinations including two without DS. The association between anti-Xa levels and covariates was tested using a linear mixed-effects model. RESULTS: We analyzed 4,546 anti-Xa values from 165 patients. Median anti-Xa levels were systematically higher with reagents containing DS, whatever the patient group, with the greatest effect observed in G1 (0.32 vs. 0.05 IU/mL). Anti-Xa levels were slightly higher in CTAD than in citrate samples, irrespective of the assay. The model showed: (1) a significant dextran-patient group interaction (p < 0.0001), the effect of DS on anti-Xa levels varying from 30.9% in G4 to 296% in G1, and (2) a significant effect of CTAD, varying between patient groups (p = 0.0302). CONCLUSION: The variability of anti-Xa levels with a great overestimation of the values, using a reagent containing DS, can lead to different treatment decisions, especially after heparin neutralization by protamine. Clinical consequences of these differences remain to be demonstrated. CI - Thieme. All rights reserved. FAU - Lasne, Dominique AU - Lasne D AUID- ORCID: 0000-0001-6600-0263 AD - AP-HP, Laboratoire d'hematologie generale, Hopital Necker, INSERM, Univ. Paris-Saclay, Le Kremlin-Bicetre, France. FAU - Toussaint-Hacquard, Marie AU - Toussaint-Hacquard M AD - Hematologie Biologique, CHRU Nancy, Nancy, France. FAU - Delassasseigne, Celine AU - Delassasseigne C AD - Laboratoire Hematologie, Hopital Haut-Leveque, CHU Bordeaux, France. FAU - Bauters, Anne AU - Bauters A AD - CHU Lille, Institut d'Hematologie-Transfusion, Lille, France. FAU - Flaujac, Claire AU - Flaujac C AD - Laboratoire de Biologie Medicale (Secteur Hemostase), Centre Hospitalier de Versailles, Andre Mignot, Le Chesnay, France. FAU - Savard, Philippe AU - Savard P AD - Hematologie Biologique, CHU Dijon Bourgogne, Dijon, France. FAU - Mouton, Christine AU - Mouton C AD - Laboratoire Hematologie, Hopital Haut-Leveque, CHU Bordeaux, France. FAU - De Maistre, Emmanuel AU - De Maistre E AD - Hematologie Biologique, CHU Dijon Bourgogne, Dijon, France. FAU - Stepanian, Alain AU - Stepanian A AD - AP-HP, Service d'Hematologie Biologique, Hopital Lariboisiere, Paris Cite University, Paris, France. FAU - Eschwege, Valerie AU - Eschwege V AD - Hematologie Biologique, CHRU Nancy, Nancy, France. FAU - Delrue, Maxime AU - Delrue M AD - AP-HP, Service d'Hematologie Biologique, Hopital Lariboisiere, Paris Cite University, Paris, France. FAU - Georges, Jean-Louis AU - Georges JL AD - Service de reanimation medico-chirurgicale, Centre Hospitalier de Versailles, Andre Mignot, Le Chesnay, France. FAU - Gros, Antoine AU - Gros A AD - Service de reanimation medico-chirurgicale, Centre Hospitalier de Versailles, Andre Mignot, Le Chesnay, France. FAU - Mansour, Alexandre AU - Mansour A AD - Department of Anesthesia and Critical Care, Pontchaillou, University Hospital of Rennes; Univ Rennes, CHU Rennes, Inserm, IRSET, Rennes, France. FAU - Leroy, Guillaume AU - Leroy G AD - CHU Lille, Pole d'anesthesie-Reanimation, Lille, France. FAU - Jouffroy, Romain AU - Jouffroy R AD - AP-HP, Service de reanimation adulte, Hopital Necker, Paris, France. FAU - Mattei, Matthieu AU - Mattei M AD - Unite d'Anesthesie et Reanimation Cardiaque & Reanimation Medicale Brabois, CHRU Nancy, Nancy, France. FAU - Beurton, Antoine AU - Beurton A AD - Department of Cardiovascular Anaesthesia and Critical care, Surgical Medical Center Magellan, Haut-Leveque Hospital, Pessac, France. FAU - Pontis, Adeline AU - Pontis A AD - Hematologie Biologique, Hopital Pontchaillou, University Hospital of Rennes, Univ. Rennes, CHU Rennes, Inserm, IRSET, Rennes, France. FAU - Neuwirth, Marie AU - Neuwirth M AD - AP-HP, Service d'Hematologie Biologique, Hopital Lariboisiere, Paris Cite University, Paris, France. FAU - Nedelec-Gac, Fabienne AU - Nedelec-Gac F AD - Hematologie Biologique, Hopital Pontchaillou, University Hospital of Rennes, Univ. Rennes, CHU Rennes, Inserm, IRSET, Rennes, France. FAU - Lecompte, Thomas AU - Lecompte T AD - Department of Pharmacy, Faculte de medecine, Namur Thrombosis and Hemostasis Center (NTHC), Namur Research Institute for Life Sciences (NARILIS), Universite de Lorraine & Universite de Namur, Namur, Belgium. AD - Hematologie Biologique, Hopital Pontchaillou University Hospital of Rennes, Rennes, France. FAU - Curis, Emmanuel AU - Curis E AD - UR 7537 BioSTM, faculte de pharmacie de Paris, universite Paris Cite, Paris, France. AD - Service d'Hematologie Biologique, Hopital Lariboisiere, AP-HP, Paris, France. FAU - Siguret, Virginie AU - Siguret V AD - AP-HP, Service d'Hematologie Biologique, Hopital Lariboisiere, Paris Cite University, Paris, France. FAU - Gouin-Thibault, Isabelle AU - Gouin-Thibault I AD - Hematologie Biologique, Hopital Pontchaillou, University Hospital of Rennes, Univ. Rennes, CHU Rennes, Inserm, IRSET, Rennes, France. LA - eng SI - ClinicalTrials.gov/NCT04700670 PT - Journal Article PT - Multicenter Study DEP - 20230615 PL - Germany TA - Thromb Haemost JT - Thrombosis and haemostasis JID - 7608063 RN - 9005-49-6 (Heparin) RN - 0 (Anticoagulants) RN - 0 (Heparin, Low-Molecular-Weight) RN - 2968PHW8QP (Citric Acid) RN - 0 (Citrates) RN - 0 (Factor Xa Inhibitors) SB - IM MH - Humans MH - *Heparin/adverse effects MH - *Anticoagulants/therapeutic use MH - Prospective Studies MH - Critical Illness MH - Heparin, Low-Molecular-Weight MH - Citric Acid MH - Citrates/therapeutic use MH - Factor Xa Inhibitors MH - Partial Thromboplastin Time COIS- None declared. EDAT- 2023/06/16 01:08 MHDA- 2023/12/01 06:44 CRDT- 2023/06/15 18:53 PHST- 2023/12/01 06:44 [medline] PHST- 2023/06/16 01:08 [pubmed] PHST- 2023/06/15 18:53 [entrez] AID - 10.1055/s-0043-1770096 [doi] PST - ppublish SO - Thromb Haemost. 2023 Dec;123(12):1105-1115. doi: 10.1055/s-0043-1770096. Epub 2023 Jun 15.