Glax,1 Schiitz,2 and Cahn3 have described cases in which the waves over the stomach moved from right to left, and they therefore designated this condition as "antiperistaltic restlessness of the stomach." Glax's case was of neurotic origin. In making the diagnosis of peristaltic or antiperistaltic restlessness of the stomach it is of the greatest importance to determine that the visible waves originate within the stomach and not in the intestines. Peristaltic and antiperistaltic movements of the small intestines are frequently observed and can easily be distinguished from motions of the stomach by the forms presented by the waves. If they originate in the small intestines, they are of small calibre (sausage-like) and are seen moving in different directions and over different regions, while the waves produced in the stomach are nearly always quite large (hand-size) and always move, if peristaltic, from left to right, if antiperistaltic from right to left, in the upper part of the abdominal cavity.

1 Glax: Pest, Nied

Cliirurg Presse, 1884. 2Schutz: Prager med. Wochenschr.. 1882. No. 11. 3Calm: Deutsch. Arch. f. klin. Med., 1884, p. 402.