Transcatheter mapping and ablation of arrhythmias in the coronary sinus.
The coronary sinus (CS) is a complex structure of particular interest to cardiac electrophysiologists. It is exploited as an anatomical reference, a site to record left-sided atrial and ventricular signals and for cardiac resynchronization therapy. Perhaps less appreciated, it may itself serve as a substrate for arrhythmias. It is now increasingly recognized that arrhythmias may be targeted by transcatheter ablation within the CS. This review summarizes pertinent anatomic considerations, explores the relationship between the CS and various arrhythmia substrates, elaborates on current indications for intra CS ablation and addresses efficacy and safety concerns associated with transcatheter ablation.
Katsouras
Grigorios
G
Montreal Heart Institute, Electrophysiology and Adult Congenital Heart Disease, 5000 Belanger St E., Montreal, QC H1T 1C8, Canada.
Dubuc
Marc
M
Khairy
Paul
P
D001145:Arrhythmias, Cardiac / Q000175:diagnosis* / Q000601:surgery*; D006328:Cardiac Catheterization; D017115:Catheter Ablation; D003331:Coronary Vessels / Q000601:surgery*; D006801:Humans; D014680:Veins / Q000601:surgery