<prompt> All are manometric features of achalasia except not related -medicineHigh LES pressureDecreased LES relaxationSegmental body peristalsisManometry helps in diagnosis  <response>: Elevated intraesophageal pressure pressurization of the esophagus from incomplete air evacuation Simultaneous mirrored contractions with no evidence of progressive peristalsisLow-amplitude waveforms indicating a lack of muscular tone 