AIM:To determine the laryngeal H+K+-ATPase and pharyngeal p H in patients with laryngopharyngeal reflux(LPR)-symptoms as well as to assess the symptom scores during PPI therapy.METHODS:Endoscopy was performed to exclu...AIM:To determine the laryngeal H+K+-ATPase and pharyngeal p H in patients with laryngopharyngeal reflux(LPR)-symptoms as well as to assess the symptom scores during PPI therapy.METHODS:Endoscopy was performed to exclude neoplasia and to collect biopsies from the posterior cricoid area(immunohistochemistry and PCR analysis).Immunohistochemical staining was performed with monoclonal mouse antibodies against human H+K+-ATPase.Quantitative real-time RT-PCR for each of the H+K+-ATPase subunits was performed.The p H values were assessed in the aerosolized environment of the oropharynx(Dxp H Catheter) and compared to a subsequently applied combined p H/MII measurement.RESULTS:Twenty patients with LPR symptoms were included.In only one patient,the laryngeal H+K+-ATPase was verified by immunohistochemical staining.In another patient,real-time RT-PCR for each H+K+-ATPase subunit was positive.Fourteen out of twenty patients had pathological results in Dxp H,and 6/20 patients had pathological results in p H/MII.Four patients had pathological results in both functional tests.Nine out of twenty patients responded to PPIs.CONCLUSION:The laryngeal H+K+-ATPase can only be sporadically detected in patients with LPR symptoms and is unlikely to cause the LPR symptoms.Alternative hypotheses for the pathomechanism are needed.The role of pharyngeal p H-metry remains unclearand its use can only be recommended for patients in a research study setting.展开更多
目的探讨非糜烂性反流病(NERD)患者电镜下微观结构的改变,研究食管下端黏膜的微观变化及其与反流的关系,为NERD的诊断及治疗提供依据。方法选取具有烧心、反酸≥3个月、反流性疾病问卷(RDQ)≥12分的患者纳入本研究。据内镜下表现将无黏...目的探讨非糜烂性反流病(NERD)患者电镜下微观结构的改变,研究食管下端黏膜的微观变化及其与反流的关系,为NERD的诊断及治疗提供依据。方法选取具有烧心、反酸≥3个月、反流性疾病问卷(RDQ)≥12分的患者纳入本研究。据内镜下表现将无黏膜破损者定为NERD患者组。选择同期的健康志愿者作为对照组。用共聚焦激光显微内镜(CLE)测量上皮乳头内毛细血管襻(IPCLs)数目、直径及鳞状上皮细胞间隙等,并与病理学资料相比较。同时行24 h食管多通道腔内阻抗-pH监测。按照反流物的组成成分(液体、混合及气体反流)及反流物的pH值(酸、弱酸及无酸反流)分别分析。结果共有67例患者纳入CLE检查,其中NERD患者46例[平均年龄(48.9±13.6)岁,男24例,女22例],对照者21例[平均年龄(35.0±12.3)岁,男11例,女9例]。NERD组IPCLs的数目、直径(μm)均大于对照组(8.29±3.52 vs 5.69±2.31,P=0.010)(19.48±3.13 vs 15.87±2.21,P=0.041),对于鳞状上皮细胞间隙,NERD组的平均值(μm)明显大于对照组(3.40±0.82 vs 1.90±0.53,P=0.042);ROC曲线显示两组间IPCLs数目的最佳工作点为6.0/FOV(AUC 0.722,95%CI:0.592~0.853),IPCLs直径的最佳工作点为17.20μm(AUC0.847,95%CI:0.747~0.947),细胞间隙的最佳工作点为2.40μm(AUC 0.935,95%CI:2.895~0.995)。IPCLs数目增多、扩张与存在DIS诊断NERD的敏感性最高,为100%。酸反流与IPCLs数目增多(β=0.059,t=2.017,P=0.030)及IPCLs扩张(β=0.047,t=2.236,P=0.045)有关。按照体位分析,则以卧位下明显,酸反流与IPCLs数目增多和扩张的β值、t值及P值分别为0.063、2.895、0.038和0.156、1.023、0.040。Bland-Altman plot分析结果显示CLE与透射电镜测得的细胞间隙数值有良好的一致性。结论CLE可清晰地观察到食管黏膜IPCLs形态、管径的变化及细胞间隙增宽,CLE在体测得的DIS与透射电镜一致,CLE可以作为快速、方便诊断NERD微观变化的实用工具。展开更多
文摘AIM:To determine the laryngeal H+K+-ATPase and pharyngeal p H in patients with laryngopharyngeal reflux(LPR)-symptoms as well as to assess the symptom scores during PPI therapy.METHODS:Endoscopy was performed to exclude neoplasia and to collect biopsies from the posterior cricoid area(immunohistochemistry and PCR analysis).Immunohistochemical staining was performed with monoclonal mouse antibodies against human H+K+-ATPase.Quantitative real-time RT-PCR for each of the H+K+-ATPase subunits was performed.The p H values were assessed in the aerosolized environment of the oropharynx(Dxp H Catheter) and compared to a subsequently applied combined p H/MII measurement.RESULTS:Twenty patients with LPR symptoms were included.In only one patient,the laryngeal H+K+-ATPase was verified by immunohistochemical staining.In another patient,real-time RT-PCR for each H+K+-ATPase subunit was positive.Fourteen out of twenty patients had pathological results in Dxp H,and 6/20 patients had pathological results in p H/MII.Four patients had pathological results in both functional tests.Nine out of twenty patients responded to PPIs.CONCLUSION:The laryngeal H+K+-ATPase can only be sporadically detected in patients with LPR symptoms and is unlikely to cause the LPR symptoms.Alternative hypotheses for the pathomechanism are needed.The role of pharyngeal p H-metry remains unclearand its use can only be recommended for patients in a research study setting.
文摘目的探讨非糜烂性反流病(NERD)患者电镜下微观结构的改变,研究食管下端黏膜的微观变化及其与反流的关系,为NERD的诊断及治疗提供依据。方法选取具有烧心、反酸≥3个月、反流性疾病问卷(RDQ)≥12分的患者纳入本研究。据内镜下表现将无黏膜破损者定为NERD患者组。选择同期的健康志愿者作为对照组。用共聚焦激光显微内镜(CLE)测量上皮乳头内毛细血管襻(IPCLs)数目、直径及鳞状上皮细胞间隙等,并与病理学资料相比较。同时行24 h食管多通道腔内阻抗-pH监测。按照反流物的组成成分(液体、混合及气体反流)及反流物的pH值(酸、弱酸及无酸反流)分别分析。结果共有67例患者纳入CLE检查,其中NERD患者46例[平均年龄(48.9±13.6)岁,男24例,女22例],对照者21例[平均年龄(35.0±12.3)岁,男11例,女9例]。NERD组IPCLs的数目、直径(μm)均大于对照组(8.29±3.52 vs 5.69±2.31,P=0.010)(19.48±3.13 vs 15.87±2.21,P=0.041),对于鳞状上皮细胞间隙,NERD组的平均值(μm)明显大于对照组(3.40±0.82 vs 1.90±0.53,P=0.042);ROC曲线显示两组间IPCLs数目的最佳工作点为6.0/FOV(AUC 0.722,95%CI:0.592~0.853),IPCLs直径的最佳工作点为17.20μm(AUC0.847,95%CI:0.747~0.947),细胞间隙的最佳工作点为2.40μm(AUC 0.935,95%CI:2.895~0.995)。IPCLs数目增多、扩张与存在DIS诊断NERD的敏感性最高,为100%。酸反流与IPCLs数目增多(β=0.059,t=2.017,P=0.030)及IPCLs扩张(β=0.047,t=2.236,P=0.045)有关。按照体位分析,则以卧位下明显,酸反流与IPCLs数目增多和扩张的β值、t值及P值分别为0.063、2.895、0.038和0.156、1.023、0.040。Bland-Altman plot分析结果显示CLE与透射电镜测得的细胞间隙数值有良好的一致性。结论CLE可清晰地观察到食管黏膜IPCLs形态、管径的变化及细胞间隙增宽,CLE在体测得的DIS与透射电镜一致,CLE可以作为快速、方便诊断NERD微观变化的实用工具。