Methods and results
One hundred one patients with newly implanted CIEDs from 2010 to 2014 at
our institute were included. PWD was measured at the time of device
implantation via a body-surface electrocardiogram. AHRE was defined as
any episode of sustained atrial tachyarrhythmia (>170 bpm)
recorded in the device’s memory. Patients were divided into an AHRE
group (n=34) and non-AHRE group (n=67) in accordance with the presence
or absence of AHRE within one year of device implantation and compared.
The mean age was 75 ± 11 years old. A greater incidence of sick sinus
syndrome (p =0.05) and longer PWD (62.6 ± 13.1 vs. 38.2 ± 13.9 ms;p <0.0001) were apparent in the AHRE group. Multivariate
analysis revealed that PWD was an independent predicting factor for
new-onset AHRE (odds ratio: 1.11; 95% confidence interval: 1.06–1.17;p <0.0001). In the logistic regression analysis, the
receiver-operating characteristic curve (area under the curve: 0.90;p <0.001) suggested the best cutoff value for PWD was 48
mm, achieving a sensitivity of 73.8% and specificity of 77.9%.