Permanent left atrial tachycardia: radiofrequency catheter ablation through the coronary sinus.
The case of a 13-year-old child with an unusually localized "focal" permanent atrial tachycardia is reported. Electrophysiologic study showed that the earliest atrial activation occurred in the distal coronary sinus and preceded the atrial depolarization recorded along the endocardial side of the lateral part of the mitral annulus. Distal coronary sinus mapping revealed a fragmented, polyphasic atrial electrogram. Radiofrequency current delivery to the site permanently stopped the tachycardia.
Pavin
Dominique
D
Département de Cardiologie et Maladies Cardio-vasculaires, Centre Hospitalier Universitaire, Rennes, France. dominique.pavin@chu-rennes.fr
Boulmier
Dominique
D
Daubert
Jean-Claude
JC
Mabo
Philippe
P
D000293:Adolescent; D018780:Body Surface Potential Mapping / Q000379:methods; D017115:Catheter Ablation; D006325:Heart Atria / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008943:Mitral Valve / Q000503:physiopathology* / Q000601:surgery*; D013610:Tachycardia / Q000175:diagnosis / Q000503:physiopathology* / Q000601:surgery*