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目的探讨低钾血症患者的肠电图表现及其意义。方法采用微机智能胃肠电图仪描记20例血钾正常者和24例低钾血症患者的肠电图,比较低钾血症患者在补钾治疗前后的肠电图变化。结果低钾血症患者肠电图的频率和振幅均显著低于血钾正常者(P<0.05);低钾血症患者在补钾治疗前后肠电图的频率、振幅、频率变异系数及振幅变异系数之间均有显著性差异(P<0.001)。结论肠电图也许可作为低钾血症疗效判断及肠运动功能评价的一个客观指标,对低钾性肠麻痹的预测和诊断可能具有重要的价值。
Objective To investigate the significance of intestinal electrogastrogram in patients with hypokalemia. Methods The electrogram of 20 patients with normal serum potassium and 24 patients with hypokalemia were recorded by computerized intelligent gastrointestinal electrodimetry. The changes of the electroencephalogram in patients with hypokalemia before and after potassium supplement were compared. Results The frequency and amplitude of GIST in patients with hypokalemia were significantly lower than those with normal serum potassium (P <0.05). The frequency, amplitude, frequency coefficient of variation and amplitude of GIST in patients with hypokalemia before and after potassium therapy The coefficient of variation was significantly different (P <0.001). Conclusion EEG may be used as an objective indicator of therapeutic efficacy of hypokalemia and assessment of intestinal motility, which may be of value in predicting and diagnosing hypokalemic intestinal paralysis.