title: [Catheter ablation of epicardial accessory pathway associated with coronary sinus musculature].
abstract: OBJECTIVE
  To report the single-center clinical experience of catheter ablation of epicardial accessory pathway associated with coronary sinus musculature.
  
  
  METHODS
  The data of 721 cases of left sided accessory pathway ablation were retrospectively analyzed. Ablation in the coronary sinus was performed in 17 (2.4 %) cases [11 males, mean age (37 ± 11) years].
  
  
  RESULTS
  Among the 17 cases, the accessory pathway was successfully ablated in middle cardiac vein and posterior lateral coronary sinus in 11 and 6 cases, respectively. Deverticulum of middle cardiac vein was seen in 2 cases. Mean time required to block the accessory pathway was (4.7 ± 2.7) s. An accessory pathway potential could be recorded at the target site in 10 out of 17 patients (59%). During a mean (21 ± 16) months follow up, only one patient experienced recurrence who was successfully cured by a second ablation session. No procedure related complication was reported.
  
  
  CONCLUSIONS
  About 2.4% of left accessory pathway may have epicardial connection locating at middle cardiac vein or lateral part of the coronary sinus and require epicardial ablation. The epicardial ablation is safe and effective, warrants an excellent long-term results.
authors.affiliation: Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
authors.forename: Wei-zhu
authors.initials: WZ
authors.lastname: Ju
authors.forename: Ming-long
authors.initials: ML
authors.lastname: Chen
authors.forename: Bing
authors.initials: B
authors.lastname: Yang
authors.forename: Feng-xiang
authors.initials: FX
authors.lastname: Zhang
authors.forename: Hong-wu
authors.initials: HW
authors.lastname: Chen
authors.forename: Jin-bo
authors.initials: JB
authors.lastname: Yu
authors.forename: Kai
authors.initials: K
authors.lastname: Gu
authors.forename: Qi-jun
authors.initials: QJ
authors.lastname: Shan
authors.forename: Jian-gang
authors.initials: JG
authors.lastname: Zou
authors.forename: Chun
authors.initials: C
authors.lastname: Chen
authors.forename: Xiao-feng
authors.initials: XF
authors.lastname: Hou
authors.forename: Ke-jiang
authors.initials: KJ
authors.lastname: Cao
mesh_terms: D000328:Adult; D017115:Catheter Ablation; D054326:Coronary Sinus / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010496:Pericardium / Q000601:surgery*; D012189:Retrospective Studies; D055815:Young Adult