Limitations
Our study was an observational single-center study and this did not
include a large number of patients. We have not included patients with
previous known AF. We defined AHRE as atrial rates faster than 225 bpm
and longer than 5 minutes. Other definitions of AHRE, in terms of atrial
rate and duration, are available in the literature, and results may vary
depending on the definition used.
CONCLUSION
Left atrial enlargement and a sinus P-wave duration ≥ 140 ms are strong
AHRE predictors. Atrial pacing significantly prolongs P-wave duration
and is associated with further development of AHRE. A paced P-wave ≥160
ms is also a predictor of AHRE and should be considered as a new
definition of IAB in the presence of atrial pacing.
Conflict of interest: None