1. The Extent of Left Atrial Low-Voltage Areas Included in Pulmonary Vein Isolation Is Associated With Freedom from Recurrent Atrial Arrhythmia 
Dong Huang, MD, Jing-bo Li, MD, Tarek Zghaib, MD, Esra Gucuk Ipek, MD, Muhammad Balouch, MD, David D. Spragg, MD, FHRS, Hiroshi Ashikaga, MD, PhD, Harikrishna Tandri, MD, Sunil K. Sinha, MD, Joseph E. Marine, MD, FHRS, Ronald D. Berger, MD, PhD, FHRS, Hugh Calkins, MD, FHRS, Saman Nazarian, MD, PhD, FHRS 
Canadian Journal of Cardiology 
Volume 34, Issue 1, Pages (January 2018)
DOI: /j.cjca
Copyright © 2017 Canadian Cardiovascular Society Terms and Conditions

2. Figure 1
Baseline low-voltage areas isolated by ablation. The color gradient reflects the graded changes in electrogram amplitude from purple at > 0.5 mV to red low-voltage areas at < 0.3 mV. Low-voltage areas were noted near the left inferior pulmonary vein ostium and on the posterior surface. As displayed in the figure, the low-voltage area located near the left inferior pulmonary vein was only partially isolated during pulmonary vein isolation. LIPV, left inferior pulmonary vein; LSPV, left superior pulmonary vein; RIPV, right inferior pulmonary vein; RSPV, right superior pulmonary vein.
Canadian Journal of Cardiology  , 73-79DOI: ( /j.cjca )
Copyright © 2017 Canadian Cardiovascular Society Terms and Conditions

3. Figure 2
Multivariable adjusted hazard ratio (HR) plot for atrial arrhythmia recurrence as a function of LVA-B isolated by ablation (LVA-I). The solid black line indicates multivariable adjusted HRs for atrial arrhythmia recurrence as a function of the LVA-I using restricted quadratic splines. The dashed lines delineate the upper and lower 95% confidence intervals. The horizontal grey line indicates an HR of 1.0. The model was adjusted for left atrial volume, CHA2DS2-VASc score, LVA-B, and AF type. AF, atrial fibrillation; CHA2DS2-VASc, Congestive Heart Failure, Hypertension, Age (≥ 75 years), Diabetes, Stroke/Transient Ischemic Attack, Vascular Disease, Age (65-74 years), Sex (Female) score.
Canadian Journal of Cardiology  , 73-79DOI: ( /j.cjca )
Copyright © 2017 Canadian Cardiovascular Society Terms and Conditions