Chronologic changes in P-wave characteristics after the Fontan procedure: The effect of surgical modification  Masahiro Koh, MD, Hideki Uemura, MD, Akiko Kada, MPH, Koji Kagisaki, MD, Ikuo Hagino, MD, Toshikatsu Yagihara, MD  The Journal of Thoracic and Cardiovascular Surgery  Volume 140, Issue 1, Pages 137-143 (July 2010) DOI: 10.1016/j.jtcvs.2010.03.014 Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 A, Freedom from atrial tachyarrhythmia. The cumulative event-free rate was estimated by using the Kaplan–Meier method. B, Freedom from sinus node dysfunction. The cumulative event-free rate was estimated by using the Kaplan–Meier method. APC, atriopulmonary connection; IB, intra-atrial baffling; EC, extracardiac conduit. The Journal of Thoracic and Cardiovascular Surgery 2010 140, 137-143DOI: (10.1016/j.jtcvs.2010.03.014) Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions

Figure 2 Chronologic changes in P-wave characteristics. Changes in maximum P-wave duration and P-wave dispersion were analyzed with the general linear mixed model, with years as a fixed effect and patients as a random effect. x, Years after surgical intervention. APC, Atriopulmonary connection; IB, intra-atrial baffling; EC, extracardiac conduit. The Journal of Thoracic and Cardiovascular Surgery 2010 140, 137-143DOI: (10.1016/j.jtcvs.2010.03.014) Copyright © 2010 The American Association for Thoracic Surgery Terms and Conditions