Ten patients with chronic duodenal ulcer underwent posterior truncal vagotomy combined with anterior seromyotomy of lesser curvature of the stomach (Taylor's procedure). Perioperative acid secretory studies (Horlland test) and gastric emptying tests were performed. Postoperative recovery was uneventful in all patients. The acid secretory studies showed decreased BAO, MAO and PAO (P < 0.01). The postoperative gastric emptying was significantly delayed, and the patients are all symptom free. Follow up gastroscopy revealed ulcer healing in 7 patients.