采用单电极携式24hpH自动监测记录仪对18例症状组,22例正常组病儿进行了食管下段pH变化的监测研究。认为食管反流与体质、年龄、性别以及疾病种类无必然联系;DeMeester的6个参数中以总反流百分率的阳性检出率高达94.4％,以立位反流百分率的检出率最低达77.8％;单一指标异常不能诊断为胃食管反流,必须3项以上异常方能确诊;小儿正常组各指标与DeMeester的正常成人指标基本相同;早诊断,早治疗绝大多数病儿可保守治愈,须手术治疗者仅占5％～15％。 A single electrode portable 24hpH automatic monitoring recorder for 18 cases of symptoms, 22 cases of normal group of children with esophageal pH changes in the monitoring study. There was no correlation between esophageal reflux and body constitution, age, gender and type of disease. DeMeester’s 6 parameters showed the highest positive rate of 94.7% of the total reflux and the lowest positive rate of 77.8% %; Single index abnormalities can not be diagnosed as gastroesophageal reflux, only three or more abnormalities can be diagnosed; children normal group indicators and DeMeester normal adult indicators are basically the same; early diagnosis and early treatment of most children can be conservative cure, Surgical treatment only accounted for 5% to 15%.