1. Increased plasma homocysteine predicts arrhythmia recurrence after minimally invasive epicardial ablation for nonvalvular atrial fibrillation 
Giuseppe Nasso, MD, Raffaele Bonifazi, MD, Vito Romano, MD, Mario Siro Brigiani, MD, Flavio Fiore, MD, Francesco Bartolomucci, MD, Mauro Lamarra, MD, Khalil Fattouch, MD, Giuseppe Rosano, MD, Mario Gaudino, MD, Roberta Spirito, MD, Carlo Gaudio, MD, Giuseppe Speziale, MD 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 146, Issue 4, Pages (October 2013)
DOI: /j.jtcvs
Copyright © 2013 The American Association for Thoracic Surgery Terms and Conditions

2. Figure 1
Kaplan–Meier curves for recurrent AF-free survival in the overall study population (A) and the high Hcy group versus the low Hcy group (B). The difference between the 2 curves reported in B is statistically significant. *Log-rank P value. Hcy, Homocysteine.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2013 The American Association for Thoracic Surgery Terms and Conditions

3. Figure 2
ROC curve for the cutoff value of the last quartile of Hcy concentration in our population (16 μmol/L) in the prediction of AF recurrence at any time during the follow-up. AUC, Area under the curve.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2013 The American Association for Thoracic Surgery Terms and Conditions