Double Potential Mapping: Development of a novel method to verify conduction block

双电位映射：开发一种验证传导阻滞的新方法

• 批准号: 23592050
• 负责人: NITTA Takashi
• 金额: $ 3.33万
• 依托单位: Nippon Medical School
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23592050/
• 关键词: 高周波アブレーション; ダブルポテンシャル; 伝導ブロック

Double potential mapping using bipolar electrodes that straddle the ablation line should identify the site of incomplete ablation as a conduction gap without constructing the activation maps.Bipolar electrograms were recorded during pacing using 11 custom-made bipolar electrodes straddling the ablation line created by a bipolar radiofrequency ablation device on the lateral right atrium in seven canines. The lateral right atrium was mapped simultaneously with 45 different bipolar electrodes to construct the activation maps and the earliest activation site across the ablation line was determined. The double potential mapping located the conduction gap on a real-time basis without displaying any maps. There was no significant change in the accuracy between the different times after ablation and different pacing cycle lengths.Double potential mapping locates the conduction gap on a real-time basis and would be useful in beating-heart epicardial ablation in off-pump setting.

使用横跨消融线的双极电极进行双电势映射，应识别不完全消融的位点作为传导间隙，而无需构造激活图。在起搏过程中使用11个定制的双极电极在起搏过程中记录了双极射流射频射流式射频射流量的消融线上，该电流是由双极射线射线射流射流ablioum a Bradium a Bradium of a Biver a radiefration a Blocy radiofquerquence Ablioum on the sher sher prime。同时用45个不同的双极电极同时映射右侧右心房，以构建激活图，并确定横跨消融线的最早激活位点。双电势映射实时位于传导间隙，而无需显示任何地图。消融后的不同时间和不同的起搏循环长度之间的准确性没有显着变化。双电势映射定位了实时的传导间隙，并且在非泵式环境中击败心中心外膜消融非常有用。