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The characteristic esophageal manometry finding in achalasia cardia is:

A

Impaired lower esophageal sphincter relaxation and absent peristalsis

B

Impaired lower esophageal sphincter relaxation and increased peristalsis

C

Decreased lower esophageal sphincter pressure and absent peristalsis

D

Decreased lower esophageal sphincter pressure and increased peristalsis

High-Yield Explanation

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

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