PMID- 28401863 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200930 IS - 0972-6292 (Print) IS - 0972-6292 (Electronic) IS - 0972-6292 (Linking) VI - 16 IP - 6 DP - 2016 Nov-Dec TI - Real-life experience with a new anticoagulation regimen for patients undergoing left-sided ablation procedures. PG - 181-184 LID - S0972-6292(16)31308-0 [pii] LID - 10.1016/j.ipej.2016.10.011 [doi] AB - BACKGROUND: Current guidelines for anticoagulation during left-sided procedures recommend the administration of unfractionated heparin (UFH) with an initial bolus of 50-100 U/kg, followed by continuous infusion to maintain an activated clotting time (ACT) >/= 300 s. Our objective was to compare the effectiveness of this standard regimen (100 U/kg bolus) to a more aggressive approach (200 U/kg bolus). METHODS: We collected data on a series of consecutive patients undergoing left sided ablation procedures. Patients with an INR >/=2.0 on the day of the procedure were excluded. Procedural anticoagulation was performed using one of two UFH regimens: 1) 100 U/kg bolus, followed by 10 U/kg/hour infusion or 2) 200 U/kg bolus, followed by 20 U/kg/hour infusion. ACT was measured 10 min after the second bolus and then controlled every 20 min. Heparin was titrated throughout the procedure to maintain an ACT 300-400 s. RESULTS: 145 consecutive patients were included in the study: 34 received an initial bolus of 100 U/kg and 111 received 200 U/kg. The mean time required to reach an ACT >/=300 s was 15.25 min (95% CI 12.97-17.03) in the 200 U/kg group and 51.23 min (95% CI 40.65-61.81) in the 100 U/kg group (p < 0.001). There was no difference between groups with regard to thromboembolic or hemorrhagic complications. CONCLUSION: Current anticoagulation guidelines for left-sided ablation procedures almost universally fail to achieve an initial ACT >/=300 s. A 200 U/kg heparin bolus is much more effective to promptly reach the target ACT, with a low rate of overshoot. CI - Copyright (c) 2016 Indian Heart Rhythm Society. Production and hosting by Elsevier B.V. All rights reserved. FAU - Dussault, Charles AU - Dussault C AD - Centre Hospitalier Universitaire de Sherbroke, Sherbrooke, Quebec, Canada. Electronic address: charles.dussault@usherbrooke.ca. FAU - Rivera, Santiago AU - Rivera S AD - Centre Hospitalier Universitaire de Sherbroke, Sherbrooke, Quebec, Canada. FAU - Badra-Verdu, Mariano AU - Badra-Verdu M AD - Centre Hospitalier Universitaire de Sherbroke, Sherbrooke, Quebec, Canada. FAU - Ayala-Paredes, Felix AU - Ayala-Paredes F AD - Centre Hospitalier Universitaire de Sherbroke, Sherbrooke, Quebec, Canada. FAU - Roux, Jean-Francois AU - Roux JF AD - Centre Hospitalier Universitaire de Sherbroke, Sherbrooke, Quebec, Canada. LA - eng PT - Journal Article DEP - 20161021 PL - Netherlands TA - Indian Pacing Electrophysiol J JT - Indian pacing and electrophysiology journal JID - 101157207 PMC - PMC5219824 OTO - NOTNLM OT - Ablation OT - Arrhythmia OT - Heparin EDAT- 2017/04/13 06:00 MHDA- 2017/04/13 06:01 PMCR- 2016/10/21 CRDT- 2017/04/13 06:00 PHST- 2016/07/14 00:00 [received] PHST- 2016/10/21 00:00 [accepted] PHST- 2017/04/13 06:00 [entrez] PHST- 2017/04/13 06:00 [pubmed] PHST- 2017/04/13 06:01 [medline] PHST- 2016/10/21 00:00 [pmc-release] AID - S0972-6292(16)31308-0 [pii] AID - 10.1016/j.ipej.2016.10.011 [doi] PST - ppublish SO - Indian Pacing Electrophysiol J. 2016 Nov-Dec;16(6):181-184. doi: 10.1016/j.ipej.2016.10.011. Epub 2016 Oct 21.