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