Daoud E, Morady F
University of Michigan Medical Center, Ann Arbor, USA.
Curr Opin Cardiol. 1995 Jan;10(1):21-5. doi: 10.1097/00001573-199501000-00005.
Endocardial lesions created by radiofrequency catheter ablation are relatively small and focal. The application of radiofrequency ablation to patients with structural heart disease and ventricular tachycardia is quite limited because the substrate for these tachycardias is often diffuse or difficult to localize. In contrast, idiopathic ventricular tachycardia often originates from a discrete focus and can usually be ablated using radiofrequency energy. The wider applicability of ablation therapy for ventricular tachycardia will depend on improvements in mapping techniques and the ability to create larger areas of injury in patients with coronary artery disease and ventricular tachycardia.
射频导管消融造成的心内膜损伤相对较小且呈局灶性。由于这些室性心动过速的基质通常是弥漫性的或难以定位，因此射频消融在结构性心脏病和室性心动过速患者中的应用相当有限。相比之下，特发性室性心动过速通常起源于一个离散的病灶，通常可以使用射频能量进行消融。室性心动过速消融治疗更广泛的适用性将取决于标测技术的改进以及在冠心病和室性心动过速患者中造成更大损伤区域的能力。
