Achalasia is an esophageal disease due to inability of relaxation of the lower esophageal sphincter (LES), frequently associated with loss of peristalsis in the distal esophagus results from the degeneration of ganglion cells in the myenteric plexus in the esophageal wall [1,2]. Pneumatic dilatation (PD) of the esophagus is the first line method of therapy of achalasia. Pneumatic balloon dilata...
