Piyush PillarisettiPennsylvania, United States Achalasia is an esophageal motility disorder characterized by impaired lower esophageal sphincter (LES) relaxation and absent or spastic esophageal peristalsis. Typically, the condition leads to solid and liquid dysphagia at symptom onset. After the pathophysiology of achalasia was described in the 1900s, treatment modalities have converged on one goal: reduce LES…