Ejima Koichiro, Shoda Morio, Miyazaki Shinsuke, Yashiro Bun, Wakisaka Osamu, Manaka Tetsuyuki, Hagiwara Nobuhisa
Department of Cardiology, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
Heart Vessels. 2013 Jul;28(4):546-9. doi: 10.1007/s00380-012-0294-x. Epub 2012 Oct 19.
We describe a case with a focal atrial tachycardia (AT) masquerading as perimitral atrial flutter revealed after circumferential pulmonary vein antral isolation for atrial fibrillation. It was successfully terminated and became noninducible by a point ablation on the left atrial anterior wall (LAAW) near the mitral annulus in contact with the aortic root and on the left superior pulmonary vein-left atrial appendage ridge, without any linear ablation, using electroanatomical mapping and conventional precise mapping with a maximum amplified gain within the low-voltage area. The AT revealed in our case was an LAAW-aorta contiguity area-related AT.
我们描述了一例在房颤患者进行环肺静脉前庭隔离术后，伪装成二尖瓣环周围房扑的局灶性房性心动过速（AT）病例。通过使用电解剖标测和传统精确标测，在与主动脉根部接触的二尖瓣环附近的左心房前壁（LAAW）以及左上肺静脉-左心耳嵴处进行点状消融，成功终止了该AT并使其不能被诱发，未进行任何线性消融，在低电压区域内使用了最大放大增益。我们病例中发现的AT是一种与LAAW-主动脉毗邻区域相关的AT。
