The characteristic esophageal manometry finding in achalasia cardia is:
Achalasia is characterized by impaired lower esophageal sphincter (LES) relaxation and absent peristalsis. Esophageal manometry is the most sensitive test to diagnose achalasia. Ref: Harrisons Principles of Internal Medicine, 18th Edition, Page 2431
Impaired lower esophageal sphincter relaxation and absent peristalsis
Impaired lower esophageal sphincter relaxation and increased peristalsis
Decreased lower esophageal sphincter pressure and absent peristalsis
Decreased lower esophageal sphincter pressure and increased peristalsis