<prompt> All are manometric features of achalasia except:High LES pressureDecreased LES relaxationSegmental body peristalsisManometry helps in diagnosis  <response>: Ans. c Segmental body peristalsisRef: Sabiston 20th Edition, Pages 1015-1018Manometry findings in Achalasia: LES will be hypertensive LES fails to relax with deglutition Body of esophagus has increased pressure No evidence of progressive peristalsisLow amplitude wave forms 