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采用自行研制的动态24小时食管pH监测系统对16名健康受试者及45例GERD患者进行了检测.提出了初步的生理性GER标准.对病理性GER诊断.以总pH<4百分时间敏感性最高(87%).返流次数最低(62%).而各指标的特异性在93～100%.结果表明:该法是GERD诊断及研究的重要方法.我们推荐总pH<4百分时间作为GERD诊断的最好的单一指标.
Twenty-six healthy subjects and 45 GERD patients were tested with a self-developed 24-hour esophageal pH monitoring system and preliminary physiological GER criteria were proposed. The diagnosis of pathological GER was performed with total pH <4% The sensitivity was the highest (87%), the lowest was reflux (62%), and the specificity of each index was 93-100% .The results showed that this method is an important method for diagnosis and research of GERD.We recommend total pH < Time is the best single indicator of GERD diagnosis.