Esophageal chemical clearance is impaired in gastro-esophageal reflux disease – a 24-h impedance-pH monitoring assessment
Evaluation of retrograde and antegrade intra-esophageal movement of fluids and gases using impedance and pH monitoring. The main analysis of volume clearance and chemical clearance caused by secondary and caused by swallowing peristalsis, respectively.
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Evaluation in patients with extra-esophageal symptoms the role of the conventional and new impedance-pH variables in diagnosing gastro-esophageal reflux disease and the predictive value of impedance-pH variables for proton pump inhibitors response.
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