Department of Cardiology, Thoraxcenter, Erasmus MC, Rotterdam, the Netherlands.
Neth Heart J. 2009 Jun;17(6):245-9. doi: 10.1007/BF03086255.
Monomorphic ventricular tachycardia (VT) and symptomatic monomorphic PVCs originating from the region of the right and left outflow tracts are increasingly treated by radiofrequency (RF) catheter ablation. Technical difficulties in catheter manipulation to access these outflow tract areas, very accurate mapping and reliable catheter stability are key issues for a successful treatment in this vulnerable region. VT ablation from the aortic sinus cusp (ASC) in particular carries a significant risk of perforation, of creating left coronary artery injury and of damage to the aorta and the aortic valve.This case series describes RF ablation of VT originating in the outflow region using the remote magnetic navigation system (MNS). Potential advantages of the MNS are catheter flexibility, steering accuracy and reproducibility to navigate to a desired location with a low probability of perforating the myocardium. This report supports the idea of using advanced MNS technology during RF ablation in regions which are difficult to reach and thin walled, such as parts of the outflow tract and the ASC. (Neth Heart J 2009;17:245-9.).
单一形态室性心动过速 (VT) 和源于右、左流出道区域的有症状单形 PVC 越来越多地采用射频 (RF) 导管消融治疗。导管操作进入这些流出道区域时存在技术困难，非常精确的映射和可靠的导管稳定性是该脆弱区域成功治疗的关键问题。特别地，来自主动脉窦嵴 (ASC) 的 VT 消融存在穿孔、左冠状动脉损伤以及主动脉和主动脉瓣损伤的显著风险。本病例系列描述了使用远程磁导航系统 (MNS) 对源于流出区的 VT 进行 RF 消融。MNS 的潜在优势是导管的灵活性、转向准确性和可重复性，以便以低穿孔心肌的可能性导航到所需位置。该报告支持在难以到达和壁薄的区域（如流出道和 ASC 的部分区域）使用先进的 MNS 技术进行 RF 消融的想法。(Neth Heart J 2009;17:245-9.)。
