Ponti Roberto De, Marazzi Raffaella, Lumia Domenico, Picciolo Giuseppe, Biddau Roberto, Fugazzola Carlo, Salerno-Uriarte Jorge A
Roberto De Ponti, Raffaella Marazzi, Giuseppe Picciolo, Roberto Biddau, Jorge A Salerno-Uriarte, Department of Heart, Brain and Vessels, Ospedale di Circolo e Fondazione Macchi, University of Insubria, IT-21100 Varese, Italy.
World J Cardiol. 2010 Aug 26;2(8):215-22. doi: 10.4330/wjc.v2.i8.215.
Atrial fibrillation is the most common arrhythmia and in symptomatic patients with a drug-refractory form, catheter ablation aimed at electrically disconnecting the pulmonary veins (PVs) has proved more effective than use of antiarrhythmic drugs in maintaining sinus rhythm during follow-up. On the other hand, this ablation procedure is complex, requires specific training and adequate clinical experience. A main challenge is represented by the need for accurate sequential positioning of the ablation catheter around each veno-atrial junction to deliver point-by-point radiofrequency energy applications in order to achieve complete and persistent electrical disconnection of the PVs. Imaging integration is a new technology that enables guidance during this procedure by showing a three-dimensional, pre-acquired computed tomography or magnetic resonance image and the relative real-time position of the ablation catheter on the screen of the electroanatomic system. Reports in the literature suggest that imaging integration provides accurate visual information with improvement in the procedure parameters and/or clinical outcomes of the procedure.
心房颤动是最常见的心律失常，对于症状性药物难治性心房颤动患者，旨在电隔离肺静脉（PVs）的导管消融术在随访期间维持窦性心律方面已被证明比使用抗心律失常药物更有效。另一方面，这种消融手术复杂，需要特定的培训和足够的临床经验。一个主要挑战是需要在每个肺静脉 - 心房交界处周围精确顺序定位消融导管，以便逐点施加射频能量，从而实现肺静脉的完全和持久电隔离。成像融合是一项新技术，通过在屏幕上显示三维、预先获取的计算机断层扫描或磁共振图像以及消融导管在电解剖系统中的相对实时位置，在此手术过程中提供引导。文献报道表明，成像融合提供了准确的视觉信息，改善了手术参数和/或手术的临床结果。
