Impaired gastric emptying may cause dyspeptic symptoms including nausea, vomiting and even nutritionnal impairment. Delay in gastric emptying may result from antro-pyloro-duodenal motility impairement.

The aim of this study is therefore to measure antro-pyloro-duodenal motor activity in patients with idiopathic gastroparesis.

Inclusion Criteria:

• Idiopathic gastroparesis or healthy volunteers
• Idiopathic gastroparesis must have delayed gastric emptying shown using C13 breath test

Exclusion Criteria:

• Diabetic or post-surgical gastroparesis
• Treatment modifying GI motility (prokinetics, opioids...)
• Parkinson or neurologic disease
• Evoluting inflammatory process or neoplasia
• Treatment modifying coagulation
• Patients not affiliated to the French healthcare insurance

Idiopathic gastroparesis and healthy volunteers