Abstract
In 1915, in the case of an ulcer that extended along the entire upper two thirds of the lesser curvature of the stomach on its posterior wall, I removed the entire lesser curvature, as this seemed the most expedient procedure at the time of operation. At the same time, I performed the routine resection of the pyloric sphincter muscle. The excellent clinical end result in this and a number of similar cases led me to study experimentally the physiology of the stomach after removal of the lesser curvature and the pyloric sphincter muscle. Von Schmieden1performed a similar operation in 1921, but he included transverse resection of the pyloric antrum. This is objectionable in that an hour-glass contraction may follow, and the operation is almost as extensive as the Billroth II or Pólya operation. Neugebauer2also reports a similar operation, in which he extirpates a part of the

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