Clinical applications of oesophageal motility studies?

Technological advances in the investigation of oesophageal motility have resulted in progressive awareness of gastro-oesophageal reflux disease and motor disorders of the oesophagus as causes of obscure "noncardiac" chest pain, as well as for unexplained swallowing difficulties. Oesophageal motility studies should also be undertaken before surgery for reflux oesophagitis.