Classic techniques like videofluoroscopy, stationary manometry, and ambulatory 24 h pH-metry are routinely used in the clinic to study patients with dysphagia, chest pain and reflux-related symptoms.

Heartburn is a symptom that is often indicative of an underlying condition of acid reflux or Gastro-esophageal reflux disorder. Diagnosis of heartburn is vital as its symptoms are similar to that of a ...