Recent technological advances have brought oesophageal motility investigations within the scope of gastrointestinal departments in all major hospitals. The techniques are now well-tried, straightforward and reproducible [1]. Their use in research has contributed greatly to our understanding of the normal physiology of the oesophagus, and to our knowledge of the abnormalities that occur in reflux oesophagitis. In clinical practice, motility studies are required most often for diagnosis of the oesophageal motility disorders, which have been shown to be more common than was once thought.

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