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When is it appropriate to stop non-vitamin K antagonist oral anticoagulants before catheter ablation of atrial fibrillation? A multicentre prospective randomized study

 Hee Tae Yu  ;  Jaemin Shim  ;  Junbeom Park  ;  Tae-Hoon Kim  ;  Jae-Sun Uhm  ;  Jong-Youn Kim  ;  Boyoung Joung  ;  Moon-Hyoung Lee  ;  Young-Hoon Kim  ;  Hui-Nam Pak 
 EUROPEAN HEART JOURNAL, Vol.40(19) : 1531-1537, 2019 
Journal Title
Issue Date
Atrial fibrillation ; Bleeding ; Catheter ablation ; Non-vitamin K antagonist oral anticoagulant
AIMS: Although a recent expert consensus statement has recommended periprocedural uninterrupted (UI) non-vitamin K antagonist oral anticoagulants (NOACs) during catheter ablation of atrial fibrillation (AF) as a Class I indication, there have been no clear randomized trials. We investigated the safety and efficacy of UI, procedure day single-dose skipped (SDS), and 24-hour skipped (24S) NOACs in patients undergoing AF ablation. METHODS AND RESULTS: In this prospective, open-label, randomized multicentre trial, 326 patients (75% male, 58 ± 11 years old) scheduled for AF catheter ablation were randomly assigned in a 1:1:1 ratio to UI, SDS, and 24S at three tertiary hospitals. Bridging with low molecular weight heparin was carried out in the patients with persistent AF who were assigned to the 24S group. Dabigatran, rivaroxaban, and apixaban were assigned in order after randomization. The primary endpoint was the incidence of bleeding events within 1 month after ablation. The secondary endpoints included thrombo-embolic and other procedure-related complications. The intra-procedural heparin requirement was higher in the 24S group than others (P < 0.001), and the mean activated clotting time was comparable among the groups (P = 0.139). The incidence of major bleeding up to 1 month after ablation and a post-procedural reduction in the haemoglobin levels did not significantly differ among the treatment groups and different NOACs (P > 0.05). There were no fatal events or thrombo-embolic complications in all the three groups. CONCLUSION: In patients undergoing AF ablation, UI NOACs and SDS or double dose skipped NOACs had a comparable efficacy and safety, regardless of the type of NOAC.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jong Youn(김종윤) ORCID logo https://orcid.org/0000-0001-7040-8771
Kim, Tae Hoon(김태훈)
Pak, Hui Nam(박희남) ORCID logo https://orcid.org/0000-0002-3256-3620
Uhm, Jae Sun(엄재선) ORCID logo https://orcid.org/0000-0002-1611-8172
Yu, Hee Tae(유희태) ORCID logo https://orcid.org/0000-0002-6835-4759
Lee, Moon Hyoung(이문형) ORCID logo https://orcid.org/0000-0002-7268-0741
Joung, Bo Young(정보영) ORCID logo https://orcid.org/0000-0001-9036-7225
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