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Title:: Diagnosis and analysis of localization characteristics of transesophagel atrial pacing in concealed accessory atrioventricular pathway

Author(s):: PENG Wei-hua; HAN Hong-wei; WANG San-di; SHANG Xiao-ke; WEN Jie; PENG Ting; (Department of Cardiovascular Surgery, Wuhan Asia Heart Hospital, Wuhan, Hubei 430022, China)

Keywords:: atrioventricular pathway; concealed; transesophaged atrical pacing; intracardiac electrophysiology examination

摘要:: 目的:探讨经食管心房调搏对隐匿性房室旁道的诊断和定位特征。方法:回顾分析360例经心内电生理检查确诊为隐匿性房室旁道患者，总结其经食管心房调搏的特征表现。结果:Ⅰ导联P'倒置定位诊断左侧旁道的灵敏度为69%，特异度为98%；V1导联P波直立定位诊断左侧旁道的灵敏度为71%，特异度为88%，V1导联P双向定位诊断左侧旁道的灵敏度为14%，其特异度为95%，RPERPV1诊断右侧旁道的灵敏度为82%，特异度为100%。结论:分析Ⅰ、V1导联P特点和测量对比RPE及RPV1对隐匿性旁道诊断和粗略左右旁道定位具有重要价值。

Abstract:: AIM:To investigate diagnosis and analysis of localization characteristics of transesophaged atrial pacing in concealed accessory atrioventricular pathway. METHODS: We retrospectively analyzed 360 cases of concealed accessory atrioventricular pathway, which were diagnosed by intracardiac electrophysiology and concluded their characteristic manifestation transesophaged atrical pacing. RESULTS: The sensitivity of inverted P wave in lead I in the diagnosis of left-sided accessory pathways was 69%, and the specificity was 98%, The sensitivity of upright P-wave in lead V1 in the diagnosis of left-sided accessory pathways was 71%, and the specificity was 88%. The sensitivity of bidirectional P’ wave in V1 lead in the diagnosis of left-sided accessory pathways was 14%. Specificity was 95%, sensitivity of RPERPV1 in the diagnosis of right-sided accessory pathway was 82%, and the specificity was 100%. CONCLUSION: Analyses of the P wave characteristics in leadⅠand V1 and measuring or contrasting RPE and RPV1 has a significant value of diagnosis and localization of concealed accessory atrioventricular pathway.