Mackintosh A F, English M J, Vincent R, Woollons D J, Chamberlain D A
Br Heart J. 1979 Aug;42(2):117-23. doi: 10.1136/hrt.42.2.117.
Electrical recordings were made in the high right atrium in 28 patients undergoing cardiac catheterisation and in 3 healthy volunteers. After filtering and amplification by 3 to 10 million times, the signals were passed through a signal averaging process in a digital computer. Of the 28 subjects who had technically satisfactory recordings, 23 showed low voltage electrical activity preceding the conventionally-recorded atrial depolarisation. The low voltage activity started 50 to 200 ms before the atrial deflection and was variable in shape. These early signals may be the result of activity in the region of the sinus node.
对28例接受心导管检查的患者及3名健康志愿者的右上心房进行了电记录。信号经300万至1000万倍滤波和放大后,在数字计算机中进行信号平均处理。在28例记录技术上令人满意的受试者中,23例在传统记录的心房去极化之前显示出低电压电活动。低电压活动在心房波之前50至200毫秒开始,形状各异。这些早期信号可能是窦房结区域活动的结果。