Atanassova E, Daskalov I, Dotsinsky I, Christov I, Atanassova A
Institute of Physiology, Bulgarian Academy of Sciences, Sofia, Bulgaria.
Arch Physiol Biochem. 1995 Aug;103(4):431-5. doi: 10.3109/13813459509047134.
Experiments were made on dogs with bipolar silver ball-shaped electrodes chronically implanted on the muscle wall of the stomach. The electrical activity of the gastric muscle wall (electrogastromyogram-EGMG) was characterized by slow potential changes during the quiescent period of the migrating myoelectric complex (MMC) and bursts of spike potentials during the activity period of MMC. Cutaneous (surface) electrodes were placed on the abdominal wall. Waves with a rhythm of 4.5-5 cpm were led off by the cutaneous electrodes (electrogastrogram-EGG), simultaneously with the EGMg. The bursts of spike potentials with the slow gastric potentials in the EGMG corresponded to an increase of the amplitude of the waves in the EGG. Good correlation was found between the number and frequency of spike potentials in a group and the wave amplitude in the EGG. EGG recorded on an electrogastrograph designed by us was characterized by low-amplitude waves corresponding to the slow waves during the period of quiescence of MMC and high-amplitude waves corresponding to the bursts of spike potentials during the activity period of MMC. Therefore it is possible to determine the MMC of the stomach by the changes in the amplitude of the waves in the EGG.
在狗身上进行了实验，将双极银球形电极长期植入胃肌壁。胃肌壁的电活动（胃肌电图-EGMG）的特征是在移行性肌电复合波（MMC）的静止期有缓慢的电位变化，在MMC的活动期有尖峰电位爆发。皮肤（表面）电极置于腹壁上。皮肤电极引出了频率为4.5-5次/分钟的波（胃电图-EGG），与EGMg同时出现。EGMG中尖峰电位爆发与缓慢的胃电位对应于EGG中波幅的增加。在一组中尖峰电位的数量和频率与EGG中的波幅之间发现了良好的相关性。我们设计的胃电图仪记录的EGG的特征是，在MMC静止期对应于慢波的低幅波，以及在MMC活动期对应于尖峰电位爆发的高幅波。因此，通过EGG中波幅的变化可以确定胃的MMC。
