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2673 pages added, reviewed or updated during the last month (last updated: 11/4/2021)

2673 pages added, reviewed or updated during the last month (last updated: 11/4/2021)


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investigations

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Investigations are as follows:

  • barium swallow - characteristic appearance with proximal dilatation and distal smooth tapering
  • manometric tests - demonstrate the motility disorder
  • oesophagoscopy - exclusion of carcinoma

A chest radiograph may reveal:

  • widened mediastinum with possibly a fluid level behind the heart
  • absence of a gastric air bubble

Manometric studies reveal a gastro-oesophageal sphincter that has a high resting tone and only partially relaxes. The tone does not fall to gastric fundal pressure.

Last reviewed 01/2018

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