• Jason G Andrade, Jenny MacGillivray, Laurent Macle, Ren Jie Robert Yao, Matthew Bennett, Christopher B Fordyce, Nathaniel Hawkins, Andrew Krahn, John Jue, Krishnan Ramanathan, Teresa Tsang, Ken Gin, and Marc W Deyell.
• Division of Cardiology, Department of Medicine, University of British Columbia, Vancouver, Canada. Electronic address: Jason.guy.andrade@umontreal.ca.
• Heart Rhythm. 2018 Jan 1; 15 (1): 9-16.

BackgroundFor patients with symptomatic, sustained atrial fibrillation (AF), a "pill-in-the-pocket" antiarrhythmic drug (PIP-AAD) strategy has been proposed to reduce emergency department (ED) use.ObjectiveTo assess the clinical utility of a protocolled PIP-AAD approach within contemporary practice.MethodsConsecutive patients who hemodynamically tolerated symptomatic, sustained AF were prospectively managed with the PIP-AAD strategy. All patients were given an atrioventricular nodal blocker 30 minutes prior to a single oral dose of a class Ic antiarrhythmic drug. If the initial PIP-AAD in the ED was efficacious and tolerated, PIP-AADs were given out of hospital for subsequent sustained AF episodes. Usage and complications were systematically recorded.ResultsDuring a median follow-up period of 565 days, 43 of 80 patients presented to the ED for initial PIP-AAD. Sinus rhythm was restored without complication in 30 of 43 patients. The reasons for initial PIP-AAD failure were inefficacy (6 patients), significant hypotension (4 patients), conversion to flutter necessitating cardioversion (2 patients), and syncopal conversion pause (1 patient). For the 30 patients with successful initial PIP-AAD, 159 out-of-hospital PIP-AAD treatments occurred (mean 5.3 ± SD 1.3 per patient). Compared with ED visits in the period prior to PIP-AAD initiation, there was a significant reduction in visits (2.6 ± 3.0 vs. 0.4±0.9 ED visits per patient, P < .001) and the need for cardioversion (2.3 ± 3.1 vs. 0.0 ± 0.2 treatments per patient, P < .001). Adverse events associated with out-of-hospital PIP-AAD include presyncope (3 of 30 patients), syncope necessitating pacemaker implantation (1 patient), and conversion to flutter (1 patient).ConclusionOut-of-hospital PIP-AAD can be an effective for highly selected patients; however, the rates of treatment failure and adverse events are clinically relevant, which limits the widespread application of a PIP-AAD approach.Copyright © 2017 Heart Rhythm Society. Published by Elsevier Inc. All rights reserved.

29 keywords...

hide…