Peptest has been identified as a ‘promising’ way to clinically diagnose patients with non-erosive reflux disease that doesn’t respond to reflux medication.

Non-erosive reflux disease (NERD) is defined as a form of gastro-oesophageal reflux disease (GERD/GORD) characterised by symptoms but without any oesophageal mucosal erosion.

Proton pump inhibitors (PPIs) are recommended as first-line therapy for GERD and are effective in 80 to 90 per cent of patients with erosive esophagitis. However, PPIs only improve symptoms in 40 to 50 per cent of patients with NERD.

2020_Matsumura_et_al_Clinical_utility_of_salivary_pepsin_measurement_in_patients_with_proton_pump_inhibitor-refractory_GERD_symptoms Non-erosive refluxHalf of PPI-refractory NERD patients are reported to have functional heartburn – having the same heartburn symptoms that are caused by GERD but without any evidence of abnormal oesophageal acid exposure.

In a new study conducted at Chiba University Hospital in Japan and published in Esophagus, the official journal of the Japan Esophageal Society, researchers investigated the usefulness of salivary pepsin measurement in patients with PPI-refractory GERD symptoms without erosive oesophagitis.

It found that in patients with PPI-refractory nonerosive reflux disease, salivary pepsin measurement may help diagnose patients who have conclusive evidence of reflux.

Download and read the study.

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