Achalasia Cardia: A Comprehensive Review
Achalasia cardia is the best characterised oesophageal motility disorder. It is characterised by progressive ganglion cell degeneration in the oesophageal myenteric plexus, which results in impaired lower oesophageal sphincter (LES) relaxation upon swallowing and aperistalsis in the distal smooth muscle segment of the oesophagus.