摘要目的 比较GerdQ量表、24 h pH-DeMeester(pH-DeM)及阻抗-pH联合监测3种方法在Barrett食管(BE)、反流性食管炎(RE)和非糜烂性反流病(NERD)的阳性诊断率以及胃食管反流事件特点.方法 参考蒙特利尔共识意见纳入2009年6月1日至2010年9月30日于北京大学第三医院就诊的胃食管反流病(GERD)患者205例,胃镜检查将患者分为BE、RE和NERD 3组.患者均接受GerdQ量表调查、食管24 h pH及阻抗监测.结果 共纳入GERD患者205例.其中BE患者10例,RE 28例,NERD 167例.(1)24 h阻抗-pH法对GERD患者的阳性诊断率为74.1%,显著高于GerdQ(51.7%)和24 h pH-DeM法(29.2%)(P<0.05).(2)GerdQ及24 h pH-DeM法对BE及RE患者阳性诊断率高于NERD患者,而24 h阻抗-pH法在3种类型GERD的阳性诊断率均在较高水平(70.0%、82.1%及73.1%).(3)GerdQ量表得分值与pH-DeM积分及阻抗-pH酸反流分值呈正相关(r=0.242,P=0.000及r=o.182,P=0.009);pH-DeM积分与阻抗-pH酸反流分值呈显著正相关(r=0.632,P=0.000).(4)阻抗-pH监测对GerdQ问卷及pH-DeM积分法具有较强的补充诊断能力:GerdQ问卷阴性者,阻抗-pH的阳性诊断率为58.4%(59/101);pH.DeM积分法阴性者,阻抗-pH监测的阳性诊断率为74.5%(108/145).GerdQ问卷及pH-DeM积分法漏诊的患者均以弱酸反流为主.(5)RE患者酸反流事件检出率及积分均显著高于NERD[53.6%比23.4%,45.6(35.0～67.5)比23.1(9.3～35.0),均P<O.05],而NERD患者弱酸反流比例及气体反流积分均显著高于RE[弱酸:57.4%比28.6%,气体:17(0～194)比30(0～500),均P<0.05].结论 RE患者以酸反流事件为主,GerdQ量表、24 h pH-DeM积分法及24 h阻抗-pH联合监测对其阳性诊断率差异无统计学意义;BE及NERD患者弱酸反流事件显著,GerdQ量表和单纯食管酸反流监测对其的阳性诊断率较低,阻抗-pH联合监测对此类患者的诊断独具优势.

abstractsObjective To compare the diagnostic values of GerdQ questionnaire,24-h pH monitoring and 24-h impedance-pH monitoring for gastroesophageal reflux disease(GERD)and to analyze the reflux patterns of Barrett's esophagus(BE),reflux esophagitis(RE)and non-erosive disease(NERD).Methods From June 1,2009 to September 30,2010,205 GERD patients were included according to the Montreal consensus.All were surveyed by a GerdQ questionnaire and underwent 24-h impedance-pH monitoring The diagnostic sensitivities of GerdQ,24-h pH-DeM and 24-h IMP-pH were compared and the reflux pattern of BE,RE and NERD analyzed.Results A total of 205 GERD patients including 10 BE,28RE and 167 NERD were recruited.(1)The diagnostic rate of 24-h IMP-pH was 74.1%.It was significantly higher than that of GerdQ(51.7%)and 24-h pH-DeM(29.2%).(2)The diagnostic sensitivities of GerdQ and 24-h pH-DeM for BE and RE were higher than that for NERD.But there were no significant differences of 24-h IMP-pH for three types of GERD(70.O%,82.1%and 73.1%).(3)There were positive correlations among the scores of GerdQ,pH-DeM scores and acid scores in IMP-pH(r=0.242,P=0.000;r=0.182.,P=0.009 and r=0.632,P=0.000).(4)Added diagnostic values of IMP-pH were 58.5%and 74.5%respectively in patients who would have been missed by GeraQ and pH-DeM.(5)The detection rate and score of acid reflux in RE patients were higher than that of NERD [53.6%vs 23.4%,P<0.05;45.6(35.0-67.5)vs 23.1(9.3-35.0),P<0.05].But gas score and separate acid reflux were lower than that in NERD[17(0-194)vs 30(0-500),P<0.05;57.4%VS 28.6%,P<0.05].Conclusions Acid reflux plays an important role in RE.The value of GerdQ and 24-h pH-DeM and 24-h IMP-pH monitoring were similar for the diagnosis of RE.Weak acid may be more important for BE and NERD patients than separate acid reflux.And 24-h IMP-pH monitoring has a distinct advantage in diagnosing these two types.