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[Treatment of radiotherapy-induced gastroparesis with erythromycin]
A Sturm1, M von der Ohe, U Rosien
1Medizinische Klinik und Poliklinik, Universitätsklinikum Essen.
History:
A 75-year-old woman who had undergone a hysterectomy with adnexectomy followed by radiotherapy for endometrial carcinoma complained of postprandial nausea with vomiting after eating solid foods and of cramp-like abdominal pain, but her appetite was good. She had lost 25 kg in weight over 13 months.
Examination:
Physical examination, laboratory tests, radiology and gastroscopy were unremarkable. Gastric scintigraphy showed abnormally prolonged emptying.
Treatment And Course:
Nausea and vomiting stopped at once after erythromycin (a motilin agonist) had been administered. It was at first given intravenously after meals (50 mg three times daily for 5 days), then orally for 10 weeks (250 mg three times daily before meals). Subsequent examination revealed normal gastric emptying. The symptoms did not recur after erythromycin had been discontinued.
Conclusion:
Erythromycin is an effective drug against gastroparesis caused by radiotherapy, because it acts even when the enteric nerves are damaged.