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本文介绍一种在离体兔心灌注条件下进行希氏束电图引导记录的简便方法。离体兔心的灌注方法与常规的兔心灌注实验方法基本相同。探测电极为球形银电极,安置在主动脉根部相当于主动脉根部与右心房交界附近的心外膜表面,尽量接近希氏束所走向的部位。所记录到的希氏束电图均经药物验证确为所要观测的A—H—V波,其中H波确为希氏束电位无误。
This article describes a simple method of conducting a guided recording of His bundle beam in isolated rabbit heart perfusion. Isolated rabbit heart perfusion method and conventional rabbit heart perfusion experimental method is basically the same. The detection electrode is a spherical silver electrode, which is placed on the surface of the epicardium near the junction of the aortic root and the right atrium at the aortic root, as close to the site of His bundle as possible. The recorded His bundle electrograms were confirmed by the drug to be A-H-V waves to be observed, of which H wave is indeed His bundle potential is correct.