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根据腹壁肌电波幅的强弱，对比检查判定30例阑尾炎及17例急性肠套叠病儿的腹部体征，有无肌紧张及其程度，结果发现单纯性阑尾炎安静时肌电波幅增高不明显；化脓性阑尾炎安静时肌电波幅略有增高，触压右下腹时可见肌电波幅明显增高；阑尾穿孔腹膜炎时，安静时左、右下腹部肌电波幅均明显增高，而急性肠套叠病儿的腹壁肌电波幅与复位后相比无大变化。
According to the strength of the EMG amplitude of the abdominal wall, the contralateral examination was used to determine the abdominal signs, presence or absence of muscle tension and the degree of abdominal distension in 30 patients with appendicitis and 17 patients with acute intussusception. The results showed that the amplitude of EMG amplitude was not obvious when the simple appendicitis was quiet; Slight suppurative appendicitis when the EMG amplitude slightly increased, touch the right lower quadrant was significantly increased EMG amplitude; appendix perforation peritonitis, quiet left and right lower abdominal EMG amplitude were significantly increased, and acute intussusception of children The abdominal wall EMG amplitude compared with no significant change after reset.