Contino Chase J, Weiss Max, Riley Michael P, Frisch Daniel R
Department of Cardiology, Thomas Jefferson University, Philadelphia, PA, USA.
Department of Cardiology, Hospital of the University of Pennsylvania, Philadelphia, PA, USA.
J Innov Card Rhythm Manag. 2020 Nov 15;11(11):4297-4300. doi: 10.19102/icrm.2020.111103. eCollection 2020 Nov.
Radiofrequency catheter ablation is a safe and effective treatment option for atrioventricular nodal reentrant tachycardia (AVNRT). A nonirrigated ablation catheter used in a temperature-controlled mode is traditionally used for AVNRT ablation due to the shallow lesion depth required for successful slow-pathway ablation. In this case, a nonirrigated ablation catheter established inadequate lesions to ablate the slow pathway successfully. The adoption of an irrigated contact-force ablation catheter used in a power-controlled mode was necessary to provide higher power and possibly create a deeper lesion to ablate the slow pathway successfully, thus eliminating AVNRT inducibility in this patient.
射频导管消融术是房室结折返性心动过速（AVNRT）的一种安全有效的治疗选择。由于成功消融慢径所需的病变深度较浅，传统上用于AVNRT消融的是非灌注消融导管，其在温度控制模式下使用。在这种情况下，一根非灌注消融导管未能形成足够的病变以成功消融慢径。采用在功率控制模式下使用的灌注接触力消融导管对于提供更高的功率并可能形成更深的病变以成功消融慢径是必要的，从而消除了该患者的AVNRT诱发性。
