title: Radiofrequency ablation of left-sided accessory atrioventricular pathways in patients with unusual coronary sinus.
abstract: Four patients with left-sided accessory pathways (APs) and unusual coronary sinus (CS) received radiofrequency ablation. Unusual CS included occlusion of CS (patient 1), acute angulation of proximal CS (patients 2 and 3), and narrowing of CS orifice and proximal segment (patient 4). CS catheterization and AP mapping along the CS could not be performed in the four patients. Radiofrequency ablation by left ventricular retrograde technique for the manifest left posteroseptal AP (patient 1), concealed left posterior AP (patient 2), and transseptal left atrial technique for the manifest left posteroseptal AP (patient 3) and manifest left posterior AP (patient 4) were performed successfully without CS catheter guidance. This study suggests that radiofrequency ablation of left-sided AP with unusual CS is feasible by some special techniques.
authors.affiliation: Department of Medicine, National Yang-Ming Medical College, Taipei, Taiwan, Republic of China.
authors.forename: C E
authors.initials: CE
authors.lastname: Chiang
authors.forename: S A
authors.initials: SA
authors.lastname: Chen
authors.forename: W P
authors.initials: WP
authors.lastname: Tsang
authors.forename: C P
authors.initials: CP
authors.lastname: Hsia
authors.forename: D C
authors.initials: DC
authors.lastname: Wang
authors.forename: C W
authors.initials: CW
authors.lastname: Chiou
authors.forename: C R
authors.initials: CR
authors.lastname: Yang
authors.forename: S P
authors.initials: SP
authors.lastname: Wang
authors.forename: B N
authors.initials: BN
authors.lastname: Chiang
authors.forename: M S
authors.initials: MS
authors.lastname: Chang
mesh_terms: D000328:Adult; D006328:Cardiac Catheterization; D002304:Cardiac Pacing, Artificial; D017115:Catheter Ablation; D002932:Cineangiography; D017023:Coronary Angiography; D003331:Coronary Vessels / Q000473:pathology*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014927:Wolff-Parkinson-White Syndrome / Q000175:diagnosis / Q000601:surgery*