Tada Hiroshi, Kurosaki Kenji, Ito Sachiko, Naito Shigeto, Yamada Minoru, Miyaji Kohei, Hashimoto Tohru, Oshima Shigeru, Nogami Akihiko, Taniguchi Koichi
Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan.
Circ J. 2005 Jul;69(7):865-9. doi: 10.1253/circj.69.865.
A patient underwent radiofrequency (RF) catheter ablation of symptomatic idiopathic ventricular contractions (PVCs). RF energy applications at 2 sites in the right ventricular outflow tract (RVOT), where both the earliest ventricular activation and near-perfect pace mapping were obtained, did not abolish the PVC but resulted in changes in the QRS morphology of the PVC. Complete elimination of the PVC was achieved with RF energy application at a site within the pulmonary artery 13 mm above the pulmonary valve, which was greater than 20 mm away from the failed ablation sites within the RVOT.
一名患者接受了有症状的特发性室性早搏（PVC）的射频（RF）导管消融术。在右心室流出道（RVOT）的2个部位施加射频能量，这两个部位均获得了最早的心室激动和近乎完美的起搏标测，但并未消除PVC，而是导致了PVC的QRS形态改变。在肺动脉瓣上方13 mm处的肺动脉内一个部位施加射频能量，实现了PVC的完全消除，该部位距离RVOT内失败的消融部位超过20 mm。
