Jongbloed M R M, Bax J J, van der Wall E E, Schalij M J
Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands.
Int J Cardiovasc Imaging. 2004 Apr;20(2):113-6. doi: 10.1023/b:caim.0000014096.14649.79.
Radiofrequency catheter ablation (RFCA) at the ostium of the pulmonary veins can potentially cure atrial fibrillation. Left-sided ablation procedures may carry a risk of thrombo-embolic events. Emboli from intracardiac thrombus originate from the left atrial appendage (LAA) in a substantial number of patients. The presence of spontaneous echo contrast in the left atrium (LA) and LAA peak emptying flow < or = 20 cm/s are also significantly related to thrombo-embolic events. Evaluation of the anatomy of the LA and LAA prior to left-sided procedures is therefore mandatory. Intracardiac echocardiography (ICE) appears an ideal technique to obtain this information during the RFCA-procedure. In the current report, we report on the use of ICE detecting a thrombus in the LAA in a patient planned to undergo RFCA of pulmonary veins for atrial fibrillation.
在肺静脉开口处进行射频导管消融术（RFCA）有可能治愈房颤。左侧消融手术可能会有血栓栓塞事件的风险。在相当多的患者中，心内血栓形成的栓子源自左心耳（LAA）。左心房（LA）内出现自发显影以及LAA峰值排空血流≤20 cm/s也与血栓栓塞事件显著相关。因此，在进行左侧手术前评估LA和LAA的解剖结构是必不可少的。心内超声心动图（ICE）似乎是在RFCA手术期间获取该信息的理想技术。在本报告中，我们报告了在一名计划接受肺静脉RFCA治疗房颤的患者中，使用ICE检测到LAA内有血栓的情况。
