Results of cryoenergy and ra-diofrequency- based catheter ab-lation for treating ventricular ar-rhythmias arising from the papil-lary muscles of the left ventricle, guided by intracardiac echocar-diography and image integration  

作　　者：童鸿 

出　　处：《心电与循环》2016年第3期223-227,229,共6页Journal of Electrocardiology and Circulation

摘　　要：<正>室性期前搏动室性期前搏动(PVC)常见于伴或不伴结构性心脏疾病(SHD)患者,有患者:PVC频发而无症状,另有患者症状明显而异位搏动较少。多个研究证实频发.PVC与潜在可逆性的心肌病之间存在关联,所选患者心肌病在导管消融后消失。已报道与左心室功能障碍相关的24h PCV数即负荷值通常达到总心搏数的15%~25%以上,尽管可低达10%。然而,鉴于PVC可为心肌病的结果 ,因此。The papillary muscles （PMs） from the left ventricle （LV） have been shown to be a potential site of origin of ventricular arrhythmias （VAs） in patients with and without structural heart disease. Catheter ablation has been described as an effective treatment for these arrhythmias, although radiofrequency delivery at these regions has been associated with poor manipulation and catheter stability compared with other VAs.

关 键 词：腔内心脏超声 图形整合 左心室乳头肌 起源室性心律失常 冷冻 射频消融 

分 类 号：R540.41[医药卫生—心血管疾病;医药卫生—临床医学;医药卫生—内科学]