A 60-year old male presents with progressive difficulty in swallowing, vomiting and occasional regurgitation for the past 3 months. Barium studied showed marked dilatation of the upper esophagus with narrowing of the lower segment. Manometry showed absent esophageal peristalsis. This patient needs to have -
Ballon dilatation Endoscopic banding Sclerotherapy Proton pump inhibitor