Abstract
Catheter ablation is an important therapeutic option for atrial tachycardias in patients with CHD. As a result of extensive scarring and surgical repair, multiple intra-atrial re-entrant tachycardia circuits develop and serve as a substrate for arrhythmias. The best ablation approach for patients with multiple intra-atrial re-entrant tachycardias has not been investigated. Here, we compared substrate-based ablation using extensive scar modification to conventional ablation. The present study included patients with surgically corrected CHD that underwent intra-atrial re-entrant tachycardia ablation. Extensive scar modification was defined as substrate ablation based on a dense voltage map, aimed to eliminate all potentials in the scar region. The control group had activation mapping-based ablation. A clinical composite endpoint was assessed. Points were given for type, number, and treatment of intra-atrial re-entrant tachycardia recurrence. In 40 patients, 63 (extensive scar modification 13) procedures were performed. Acute procedural success was achieved in 78%. Procedural duration was similar in both groups. Forty-nine percent had a recurrence within 1 year. During a 5-year follow-up (2.5-7.5 years), 46% required repeat cathet...Continue Reading
References
Feb 1, 1995·Circulation·J K TriedmanE P Walsh
Feb 1, 1996·Circulation·J M KalmanM D Lesh
May 1, 1996·The American Journal of Cardiology·G F Van HareP C Dorostkar
Oct 8, 1997·Journal of the American College of Cardiology·J K TriedmanE P Walsh
Feb 7, 2001·Circulation·H NakagawaW M Jackman
Jul 7, 2001·European Heart Journal·N SaoudiUNKNOWN Working Group of Arrhythmias of the European of Cardiology and the North American Society of Pacing and Electrophysiology
Jun 1, 2002·Journal of the American College of Cardiology·John K TriedmanEdward P Walsh
Oct 1, 2003·Circulation·Natasja M S de GrootErnst E Van der Wall
Dec 18, 2003·Journal of Cardiovascular Electrophysiology·Bernhard ZrennerClaus Schmitt
Apr 27, 2005·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Peter LukacPeter S Hansen
Jan 31, 2007·Circulation·Edward P Walsh, Frank Cecchin
Oct 8, 2009·Circulation. Cardiovascular Imaging·Stijntje D RoesJeroen J Bax
Oct 30, 2010·Journal of the American College of Cardiology·Sing-Chien YapVijay S Chauhan
Aug 18, 2012·Pacing and Clinical Electrophysiology : PACE·Jae-Sun UhmBoyoung Joung
Aug 26, 2014·Circulation. Arrhythmia and Electrophysiology·Sascha RolfChristopher Piorkowski
Sep 28, 2015·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Pasquale Santangeli, Francis E Marchlinski
Jan 1, 2016·Journal of the American College of Cardiology·Luigi Di BiaseAndrea Natale