[Anorexia nervosa or somatic disease].

We have studied 18 patients with anorexia nervosa with antroduodenal manometry for 24 hours and also 24 hours oesophageal pH studies. After the first 12 hours of measurements we started treatment with Cisapride (n = 8) or Erythromycin (n = 10) in a blind study. The results of measurements reveal a severe gastroesophageal reflux in 4 patients. Antroduodenal manometry showed dysfunctions in gastric motility, without relation with weight loss or duration of the disease. Cisapride and more so Erythromycin favor gastrointestinal motility.