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首页> 外文期刊>PACE: Pacing and clinical electrophysiology >Characterization of Human Coronary Sinus Valves by Direct Visualization during Biventricular Pacemaker Implantation.
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Characterization of Human Coronary Sinus Valves by Direct Visualization during Biventricular Pacemaker Implantation.

机译：通过在双心室起搏器植入过程中直接可视化来表征人类冠状窦瓣膜。

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Background: The precise reasons for failure to cannulate the coronary sinus during biventricular device implantation are unknown. Visualization of the coronary sinus ostium during electrophysiology procedures may enhance understanding of how unusual anatomy can affect successful cannulation of the coronary sinus. Objectives: The aim of this study was to describe the morphology of valves at the coronary sinus ostium (CSO) visualized directly with an illuminated fiberoptic endoscope during implantation of biventricular devices. Methods: The coronary sinus anatomy of one hundred consecutive patients undergoing implantation of biventricular devices was investigated using a fiberoptic endocardial visualization catheter (EVC). Results: The CSO was clearly visualized in 98 patients using the EVC. A Thebesian valve was seen in 54% of these. Almost all Thebesian valves were positioned at the inferior (61%) or posterior (33%) aspect of the CSO. Only six patients had Thebesian valves that covered more than 70% ofthe CSO, but all were successfully implanted with a transvenous left ventricular pacing lead after cannulating the coronary sinus under direct visualization. Conclusions: Over half of patients undergoing biventricular device implantation have identifiable Thebesian valves. Even valves covering the majority of the ostial area may be traversed using direct visualization and modern catheterization techniques.
机译：背景：在双心室装置植入过程中未能插通冠状窦的确切原因尚不清楚。在电生理过程中可视化冠状窦口可增强对异常解剖结构如何影响冠状窦成功插管的了解。目的：本研究的目的是描述在植入双心室装置期间直接用照明的光纤内窥镜可视化的冠状窦口（CSO）瓣膜的形态。方法：使用光纤心内膜可视化导管（EVC）研究了连续100例接受双心室装置植入的患者的冠状窦解剖结构。结果：使用EVC在98位患者中清晰地看到了CSO。在这些患者中有54％看到了底比斯瓣。几乎所有的Thebesian瓣膜都位于CSO的下方（61％）或后方（33％）。只有6例患者的Thebesian瓣膜覆盖了CSO的70％以上，但所有患者均在直接可视化下插入冠状窦后成功植入了静脉左心室起搏导线。结论：超过一半的接受双心室装置植入的患者具有可识别的Thebesian瓣膜。甚至可以使用直接可视化和现代导管插入技术遍历覆盖大部分口腔的瓣膜。

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