Jia-Feng Lin, Yue-Chun Li, Jia Li, Kang-Ting Ji, Jia-Xuan Lin, Ji-Fei Tang, Peng-Lin Yang
Department of Cardiology, Second Affiliated Hospital of Wenzhou Medical College, Wenzhou, China.
Pacing Clin Electrophysiol. 2012 May;35(5):e120-3. doi: 10.1111/j.1540-8159.2010.03000.x. Epub 2011 Jan 5.
This case report describes idiopathic ventricular tachycardia (VT) originating from the anterolateral site of mitral annulus. Radiofrequency (RF) energy application at an endocardial site of mitral annulus could not eliminate the tachycardia. The earliest epicardial activation preceding the onset of the QRS complex by 34 ms was found at the great anterior cardiac vein just opposite to the endocardial ablation catheter, pace mapping provided an identical (12/12) match with the VT morphology at the site, and RF ablation effectively eliminated the VT from the great cardiac vein within the coronary venous system.
本病例报告描述了起源于二尖瓣环前外侧部位的特发性室性心动过速（VT）。在二尖瓣环的心内膜部位施加射频（RF）能量未能消除心动过速。在QRS波群起始前34毫秒最早的心外膜激动出现在与心内膜消融导管相对的大前心脏静脉处，起搏标测在该部位与VT形态提供了相同（12/12）的匹配，并且射频消融有效地从冠状静脉系统内的大心脏静脉消除了VT。
