PMID- 35425821 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220423 IS - 2297-055X (Print) IS - 2297-055X (Electronic) IS - 2297-055X (Linking) VI - 9 DP - 2022 TI - Uninterrupted DOACs Approach for Catheter Ablation of Atrial Fibrillation: Do DOACs Levels Matter? PG - 864899 LID - 10.3389/fcvm.2022.864899 [doi] LID - 864899 AB - Most patients present for catheter ablation of atrial fibrillation (CAAF) with residual or full effect of vitamin K antagonists (VKAs) or direct oral anticoagulants (DOACs). In daily practice, it has been observed that the activated clotting time (ACT) was actually poorly sensitive to the effect of DOACs and that patients on DOACs required more unfractionated heparin (UFH) to achieve the ACT target of 300 s during the procedure, leading some authors to worry about potential overdosing. Conversely, we hypothesize that these higher doses of UFH are necessary to achieve adequate hemostasis during CAAF regardless of the residual effect of DOACs. During CAAF, thrombosis is promoted mainly by the presence of thrombogenic sheaths and catheters in the bloodstream. Preclinical data suggest that only high doses of DOACs are able to mitigate catheter-induced thrombin generation, whereas low dose UFH already do so. In addition, the effect of UFH seems to be lower in patients on DOACs, compared to patients on VKAs, explaining part of the differences observed in heparin requirements. Clinical studies could not identify increased bleeding risk in patients on DOACs compared to those on VKAs despite similar efficacy during CAAF procedures. Moreover, targeting a lower ACT was associated with an increased periprocedural thrombotic risk for both DOAC and VKA patients. Therefore, the low sensitivity of the ACT to the residual effect of DOACs should not be a major concern in its use in the interventional cardiology laboratory. CI - Copyright (c) 2022 Hardy, Douxfils, Dincq, Sennesael, Xhaet, Mullier and Lessire. FAU - Hardy, Michael AU - Hardy M AD - Universite catholique de Louvain, Hematology Laboratory, Namur Thrombosis and Hemostasis Center, Namur Research Institute for Life Sciences, Centre Hospitalier Universitaire UCL Namur, Namur, Belgium. AD - Universite catholique de Louvain, Department of Anesthesiology, Namur Thrombosis and Hemostasis Center, Namur Research Institute for Life Sciences, Centre Hospitalier Universitaire UCL Namur, Namur, Belgium. FAU - Douxfils, Jonathan AU - Douxfils J AD - Department of Pharmacy, Namur Thrombosis and Hemostasis Center, Namur Research Institute for LIfe Sciences, University of Namur, Namur, Belgium. AD - QUALIblood s.a., Namur, Belgium. FAU - Dincq, Anne-Sophie AU - Dincq AS AD - Universite catholique de Louvain, Department of Anesthesiology, Namur Thrombosis and Hemostasis Center, Namur Research Institute for Life Sciences, Centre Hospitalier Universitaire UCL Namur, Namur, Belgium. FAU - Sennesael, Anne-Laure AU - Sennesael AL AD - Universite catholique de Louvain, Pharmacy Department, Namur Thrombosis and Hemostasis Center, Namur Research Institute for Life Sciences, Centre Hospitalier Universitaire UCL Namur, Namur, Belgium. FAU - Xhaet, Olivier AU - Xhaet O AD - Universite catholique de Louvain, Department of Cardiology, Namur Thrombosis and Hemostasis Center, Centre Hospitalier Universitaire UCL Namur, Namur, Belgium. FAU - Mullier, Francois AU - Mullier F AD - Universite catholique de Louvain, Hematology Laboratory, Namur Thrombosis and Hemostasis Center, Namur Research Institute for Life Sciences, Centre Hospitalier Universitaire UCL Namur, Namur, Belgium. FAU - Lessire, Sarah AU - Lessire S AD - Universite catholique de Louvain, Department of Anesthesiology, Namur Thrombosis and Hemostasis Center, Namur Research Institute for Life Sciences, Centre Hospitalier Universitaire UCL Namur, Namur, Belgium. LA - eng PT - Journal Article PT - Review DEP - 20220329 PL - Switzerland TA - Front Cardiovasc Med JT - Frontiers in cardiovascular medicine JID - 101653388 PMC - PMC9001940 OTO - NOTNLM OT - activated clotting time OT - atrial fibrillation OT - catheter ablation OT - direct oral anticoagulant OT - unfractionated heparin COIS- JD is the CEO and founder of QUALIblood s.a., a contract research organization manufacturing the DP-Filter, is a coinventor of the DP-Filter (patent application number: PCT/ET2019/052903) and reports personal fees from Daiichi-Sankyo, Mithra Pharmaceuticals, Stago, Roche and Roche Diagnostics outside the submitted work. FM reports institutional fees from Stago, Werfen, Nodia, Roche Sysmex and Bayer. He also reports speaker fees from Boehringer Ingelheim, Bayer Healthcare, Bristol-Myers Squibb, Pfizer, Stago, Sysmex and Aspen all outside the submitted work. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/04/16 06:00 MHDA- 2022/04/16 06:01 PMCR- 2022/01/01 CRDT- 2022/04/15 05:32 PHST- 2022/01/29 00:00 [received] PHST- 2022/02/28 00:00 [accepted] PHST- 2022/04/15 05:32 [entrez] PHST- 2022/04/16 06:00 [pubmed] PHST- 2022/04/16 06:01 [medline] PHST- 2022/01/01 00:00 [pmc-release] AID - 10.3389/fcvm.2022.864899 [doi] PST - epublish SO - Front Cardiovasc Med. 2022 Mar 29;9:864899. doi: 10.3389/fcvm.2022.864899. eCollection 2022.