Secondary oesophageal motor disorders and manometric findings
| Disorder | Manometric findings |
|---|---|
| LOS, lower oesophageal sphincter. | |
| Diabetes | Low amplitude bipeaked contractions |
| Chronic idiopathic pseudo-obstruction | Repetitive contractions, segmental loss of peristalsis |
| Scleroderma, mixed connective tissue disease, rheumatoid arthritis, and systemic lupus erythematosus | Low LOS pressure and low amplitude simultaneous contractions in the distal two thirds of the oesophagus; proximal oesophagus may have normal contractions |
| Secondary achalasia, Chagas disease | Evidence of systemic disease, neoplasm cardiomyopathy, megacolon, and megaureter |
| Amyloidosis, alcoholism, myxoedma, and multiple sclerosis | Low amplitude contractions in the distal oesophagus |