| Title | Long-term outcome of catheter ablation for left posterior fascicular ventricular tachycardia with the development of left posterior fascicular block and characteristics of repeat procedures |
| Authors | Luo, Bin Zhou, Gongbu Guo, Xiaogang Liu, Xu Yang, Jiandu Sun, Qi Ma, Jian Zhang, Shu |
| Affiliation | Chinese Acad Med Sci, Natl Ctr Cardiovasc Dis, Fuwai Hosp, State Key Lab Cardiovasc Dis,Arrhythmia Ctr, Beijing 100037, Peoples R China. Peking Union Med Coll, Beijing 100037, Peoples R China. Peking Univ, Dept Cardiol, Hosp 3, Beijing, Peoples R China. Chinese Acad Med Sci, Natl Ctr Cardiovasc Dis, Fuwai Hosp, State Key Lab Cardiovasc Dis,Arrhythmia Ctr, Beijing 100037, Peoples R China. Ma, J (reprint author), Peking Union Med Coll, Beijing 100037, Peoples R China. |
| Keywords | Catheter ablation Left posterior fascicular block Left posterior fascicular ventricular tachycardia Repeat procedure VERAPAMIL REENTRY MACROREENTRY CONDUCTION CIRCUIT RHYTHM |
| Issue Date | 2017 |
| Publisher | INTERNATIONAL JOURNAL OF CARDIOLOGY |
| Citation | INTERNATIONAL JOURNAL OF CARDIOLOGY.2017,236,203-208. |
| Abstract | Objective: The present study aimed to retrospectively investigate long-term clinical outcomes of patients undergoing catheter ablation of left posterior fascicular ventricular tachycardia (LPF-VT) with the development of left posterior fascicular block (LPF block) and characteristics of repeat procedures. Methods and results: A total of 195 patients (mean age 29.76 +/- 1.03 years, 16.4% females) who underwent catheter ablation for LPF-VT were consecutively enrolled. The earliest ventricular potential with a single fused Purkinje potential (PP) during VT and the PP located in the inferior-apical or mid-apical septum during SR were targeted for linear ablation. The endpoint of the procedure was noninducible VT and development of new-onset LPF block. Follow-up with clinic visits or telephonic interviews, electrocardiogram (ECG), or Holter monitoring was performed after the procedure. With a median follow-up of 85 (18,181) months, 20 patients were censored and 152 of 175 (86.86%) patients had long-termfreedom from VT after a single procedure. No statistical difference in the outcome of catheter ablation of LPF-VT was found between inducible and non-inducible groups (P = 0.89). Twenty-three patients exhibited recurrent LPF-VT. Seven of 23 patients developed new-onset left upper septal ventricular tachycardia that was successfully ablated. All the patients undergoing repeat procedures had freedom from VT. No procedural complications occurred. Conclusions: Ablation of LPF-VT using the development of LPF block as the endpoint is associated with a high procedural success rate. No difference in freedom from LPF-VT was found between inducible and non-inducible patients. New-onset LPF block recovery and non-early PP-QRS interval can be the predictors of LPF-VT repeat procedure. (C) 2017 Elsevier B.V. All rights reserved. |
| URI | http://hdl.handle.net/20.500.11897/473121 |
| ISSN | 0167-5273 |
| DOI | 10.1016/j.ijcard.2017.01.152 |
| Indexed | SCI(E) |
| Appears in Collections: | 第三医院 |
