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目的 检测肝硬化患者体表肠电图 ,观察肝硬化患者的肠肌电活动 ,探讨肠电图在肝硬化患者中的应用价值。方法 肝硬化患者 6 5例 ,对照组 30例 ,以WCDF - 4B胃肠电分析仪记录体表肠电图 ,观察平均峰值幅度Ap、主频Fp、平均过零频率Fz及特异波形。结果 肝硬化组Fz异常率及特异波形的出现率明显高于对照组 ,P <0 0 1;两组的Ap、Fp无明显差别 ,P >0 0 5。结论 肝硬化患者Fz明显高于对照组 ,出现肠肌电活动增多、功能紊乱的特征性波型即频繁小移行波和负载波 ,说明肝硬化患者肠电活动的兴奋性增高、不规则 ,且随着肝功能的受损程度的增加 ,肠肌电活动异常的发生率增加。肠电图检查是测定肠肌电活动的可靠方法 ,具有无创伤、无痛苦、简便、安全、稳定的特点
Objective To detect the intestinal electrogram of patients with liver cirrhosis and to observe the myoelectric activity of the intestine in patients with cirrhosis and to explore the value of enteral electrogram in patients with liver cirrhosis. Methods Sixty - five cases of cirrhosis and 30 cases of control group were enrolled in this study. The intestinal electrogram was recorded by WCDF - 4B gastrointestinal electrical analyzer. The average peak amplitude Ap, dominant frequency Fp, mean zero - crossing frequency Fz and specific waveforms were observed. Results The frequency of Fz abnormalities and specific waveforms in cirrhotic patients were significantly higher than those in control subjects (P <0.01). There was no significant difference in Ap and Fp between the two groups (P> 0.05). Conclusions The Fz of patients with cirrhosis is obviously higher than that of the control group. The characteristic waveforms of intestinal myoelectrical activity, such as frequent small shift wave and negative load wave, show the excitability of intestinal electrical activity is increased and irregular in patients with cirrhosis As the degree of impairment of liver function increases, the incidence of abnormal myoelectrical activity increases. EOG is a reliable method of determining myoelectrical activity without trauma, painless, simple, safe and stable