Urthaler F, James T N
J Lab Clin Med. 1975 May;85(5):711-22.
For careful analysis of His bundle electrograms in the dog it is useful to have a stable rather than moving recording site. In this study we have compared the characteristics of His bundle electrograms recorded by two methods in each of ten anesthetized dogs. Records obtained with a Hoffman-type plaque electrode sutured in the vicinity of the His bundlewere not significantly different from ones obtained with a recording catheter wedged in the aortic root. In addition to measurements made during the resting state, comparisons also included those during selectively produced acute but transietn complete A-V block, sinus bradycardia, A-V junctional tachycardia, A-V junctional bradycardia, and various degrees of incomplete A-V block. A stable and accurate His bundle electrogram can be obtained from the aortic root and has the experimental advantage of not having to open the right atrium or place sutures near the A-V node of His bundle.
为了仔细分析犬的希氏束电图，拥有一个稳定而非移动的记录部位是很有用的。在本研究中，我们比较了在十只麻醉犬中，用两种方法记录的希氏束电图的特征。用缝合在希氏束附近的霍夫曼型片状电极获得的记录，与用楔入主动脉根部的记录导管获得的记录没有显著差异。除了在静息状态下进行的测量外，比较还包括在选择性产生的急性但短暂的完全房室传导阻滞、窦性心动过缓、房室交界性心动过速、房室交界性心动过缓和各种程度的不完全房室传导阻滞期间的测量。可以从主动脉根部获得稳定而准确的希氏束电图，并且具有无需打开右心房或在希氏束房室结附近放置缝线的实验优势。
