[Relationship between the size of hiatal hernia and esophageal acid exposure time in erosive and non-erosive reflux disease].

Background: In the last few years studies have demonstrated that hiatal hernias have an important role in the pathogenesis of reflux disease, promoting reflux by many different mechanisms, emphasizing that the larger the hiatal hernia, the higher the reflux intensity and erosive esophagitis prevalence.

Aim: To correlate the size of hiatal hernias (small or large) with reflux intensity (measured by pH monitoring parameters) in patients with non-erosive and erosive reflux disease.

Patients And Methods: We reviewed pH monitoring from patients with typical reflux symptoms (heartburn) previously submitted to upper endoscopy.