Body surface mapping of P-waves in sinus rhythm to predict recurrence following cardioversion for atrial fibrillation.

Background

Direct current cardioversion (DCCV) is used as elective and emergency rhythm control for atrial fibrillation (AF). We aimed to explore the role of P-wave parameters measured during sinus rhythm using body surface mapping (BSM) in predicting successful DCCV for persistent atrial fibrillation (persAF) at 12 months.

Methods

This case-control study included 56 males >18 years old who underwent DCCV for persAF. P-wave parameter collection after DCCV for AF was done using 128 unipolar leads. A band-pass filter of 1-50 Hz was utilised. Corrected P-wave duration (PWDc), P-wave amplitude, and P-wave dispersion were measured to predict 12-month outcomes and time of recurrence.

Results

The mean age was 64 ± 4 years, and 23 patients (44%) were on amiodarone. The 12-month success rate was 44% (

Conclusion

In patients on amiodarone, increased PWDc measured using BSM was associated with higher AF recurrence at 12 months following DCCV for persAF.

Informations de copyright

© 2024 Antoun, Li, Kotb, Barker, Mavilakandy, Koev, Vali, Somani and Ng.

Déclaration de conflit d'intérêts

AK is supported with a clinical research fellowship from Abbott. GAN is supported by a British Heart Foundation Programme Grant (RG/17/3/32,774) and the Medical Research Council Biomedical Catalyst Developmental Pathway Funding Scheme (MR/S037306/1). GAN also discloses consultancy fees, speaker honorarium fellow support from Biosense Webster, research fellow funding from Abbott, and consultancy fees from Catheter Precision. 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.