Extensive Preferential Pathway Ablation for the Elimination of Premature Ventricular Contractions Arising from the Right Ventricular Outflow Tract |
| |
| Authors: | Norishige Morita Takayuki Iida Ueno Akira Yoshinori Kobayashi |
| |
| Institution: | 1Division of Cardiology, Department of Medicine, Tokai University Hachioji Hospital, Tokyo;2Division of Cardiology, Department of Medicine, Nippon Medical School, Tokyo, Japan |
| |
| Abstract: | A 76 y/o women presented with 2 different types of premature ventricular contractions (VPCs 1 and 2) arising from the right ventricular outflow tract (RVOT). Catheter ablation (CA) eliminated PVC1 at the earliest activation site (EAS), but thereafter another PVC morphology (PVC3) appeared. Small potentials preceding the local potential were broadly exhibited from the RVOT’s supero-anterior region to the EAS during PVC3. Point CA targeting such prepotentials failed. Transverse-linear CA with a line connecting sites with such pre-potentials eliminated both PVCs 3 and 2. In cases with broadly spreading preferential pathways, extensive CA might be needed to eliminate the PVCs. |
| |
| Keywords: | Preferential pathway Pre-potential Right Ventricular outflow tract Premature ventricular contraction Ablation |
| 本文献已被 ScienceDirect 等数据库收录！ |
