title: "Transseptal" technique through atrial baffles for 3-dimensional mapping and ablation of atrial tachycardia in patients with d-transposition of the great arteries.
abstract: Access to targets for radiofrequency ablation in patients with congenital heart disease may be limited by anatomy and by surgically placed obstacles. In patients with atrial switch anatomy for d-transposition of the great arteries, the critical isthmus for maintenance of intraatrial macroreentry circuits is found often on the pulmonary venous side of the atrial baffle. A retrograde approach is extremely difficult for these arrhythmias. Use of transseptal techniques for diagnostic catheterization in these patients has been reported. We report the use of a transseptal technique in two cases in conjunction with 3-dimensional electroanatomic mapping for the successful ablation of atrial reentry tachycardias in patients with Mustard and Senning anatomy.
authors: Children's Specialists of San Diego, Children's Hospital San Diego, University of California, San Diego, CA 92123, USA. jperry@chsd.org
authors: James C
authors: JC
authors: Perry
authors: Nicole K
authors: NK
authors: Boramanand
authors: Frank F
authors: FF
authors: Ing
mesh_terms: D000293:Adolescent; D000328:Adult; D006328:Cardiac Catheterization / Q000379:methods*; D017115:Catheter Ablation / Q000379:methods*; D022062:Electrophysiologic Techniques, Cardiac; D005260:Female; D006325:Heart Atria / Q000601:surgery; D006346:Heart Septum / Q000601:surgery; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D013612:Tachycardia, Ectopic Atrial / Q000150:complications / Q000601:surgery*; D014188:Transposition of Great Vessels / Q000150:complications / Q000175:diagnosis*