Ishijima M, Hembrough F B
Am J Vet Res. 1979 Dec;40(12):1800-2.
A method for locating an electrode catheter for observing electrical activities of the fasciculus atrioventricularis (bundle of His) without fluoroscopic guidance is described. A catheter which contains 4 electrodes and 2 internal capillary tubes was developed; the catheter has 2 distal orifices 18 mm apart. The position of the catheter tip is determined by observing blood pressure recordings from the two internal capillary tubes; when the tip is positioned properly, the proximal orifice will monitor atrial pressure and the distal orifice will detect ventricular pressure. This catheter was utilized on 14 mongrel dogs (19 to 27 kg). Recordings of atrioventricular bundle activities were successfully obtained from 12 of 14 dogs without any fluoroscopic guidances.
描述了一种在无荧光透视引导下定位电极导管以观察房室束电活动的方法。研制了一种包含4个电极和2个内部毛细管的导管；该导管有两个相距18毫米的远端开口。通过观察来自两个内部毛细管的血压记录来确定导管尖端的位置；当尖端位置适当时，近端开口将监测心房压力，远端开口将检测心室压力。这种导管用于14只杂种狗（19至27千克）。在无任何荧光透视引导的情况下，成功从14只狗中的12只获得了房室束活动记录。
