1. Epidemiology and Pathophysiology of Gastroparesis 2. Diabetic Gastroparesis and Non-Diabetic Gastroparesis 3. Clinical Manifestations and Natural History of Patients with Gastroparesis 4. Evaluation of Patients with Suspected Gastroparesis 5. Symptomatic Management of Gastroparesis 6. Gastric Electrical Stimulator for treatment of Gastroparesis 7. Surgical Treatment for Gastroparesis 8. Botulinum Toxin Injection for Treatment of Gastroparesis 9. Stent Placement for Treatment for Gastroparesis 10. Technical Aspects of Per Oral Endoscopic Pyloromyotomy 11. Gastric Emptying Scintigraphy for Evaluation of Patients with Gastroparesis before Per Oral Endoscopic Myotomy 12. Outcomes of Per Oral Endoscopic Pyrolomyotomy in France 13. Outcomes of Per Oral Endoscopic Pyloromyotomy in the United States