Effects of the preoperative IRP values on the pathophysiology of patients with esophageal achalasia and on the treatment outcome of laparoscopic Heller-Dor surgery.

In patients with esophageal achalasia, the degree of the preoperative IRP value affects the age, BMI, preoperative LESP, and preoperative regurgitation symptoms. However, there were no effects on the surgical outcomes, with the surgical outcomes being satisfactory, regardless of the IRP value.