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加速性室性自主心律经皮导管消融一例

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摘要 患者男性,55岁,因胸闷、心悸不适10年,加重1周入我院治疗。入院时心电图示窦性心律,可见部分频率为60~75次/分,P波消失,窄的畸形QRS波(88ms),不完全左束支传导阻滞图形,缓慢起始,缓慢终止,与窦性心律交替出现,临床诊断为加速性室性自主心律(AIVR)。动态心电图(Holter)检查显示室性早搏负荷为57%,经心脏超声、心肌酶学、冠状动脉造影、同位素心肌显像等检查排除器质性及继发性因素后决定行电生理检查。EnSite NAVX三维标测系统激动标测和起搏标测均提示AIVR起源于右室后侧壁,于此处标测到理想靶点(单极电图呈QS型且领先体表QRS波42ms),行导管射频消融获得成功。术后患者症状改善,3个月后随访Holter未再出现AIVR。
出处 《中国心脏起搏与心电生理杂志》 2018年第6期604-606,共3页 Chinese Journal of Cardiac Pacing and Electrophysiology
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