AFTER operations on the stomach in which the normal pyloric mechanism is destroyed, some patients develop postprandial symptoms recognized as being due to the treatment alone and not to the preexisting gastric pathology. The comparative incidence of this symptom complex, known as the dumping syndrome and occurring after different gastric operations, has been widely reported and is a controversial subject. The difficulty in assessing the true incidence of this syndrome is increased to some considerable degree by the subjective evaluation by both patient and physician.
The clinical impression of a lower incidence and severity of the dumping syndrome after pyloroplasty with vagotomy as compared to partial gastrectomy, and gastroenterostomy with vagotomy, is one of the arguments for its preferential use in the treatment of duodenal ulcer.11,16
It has been shown that in experimentally produced dumping syndrome there was no significant difference in the incidence and severity of the symptoms
WIZNITZER T, ROZIN R, AVIRAM A. Dumping Syndrome After Gastric SurgeryComparative Study of Experimentally Produced Dumping Syndrome After Gastroenterostomy With Vagotomy and Pyloroplasty With Vagotomy. Arch Surg. 1965;91(3):419-423. doi:10.1001/archsurg.1965.01320150049007