The author presents an excellent and logical treatise on aerophagia. He defines the condition as the swallowing of atmospheric air which may or may not be followed by belching. Physiologic aerophagia is discussed. Pathologic aerophagia is said to differ from the physiologic form either by the greater size of the air bubble in the stomach, or by the intolerance of air in a hypersensitive stomach and the dyspepsia and mechanical troubles that accompany distention of the digestive tube with air. The mechanisms of the unconscious swallowing of air are described.
Air is said to penetrate for varying distances in the digestive tube with the production of corresponding symptoms: 1. Eructation may be provoked simply by the accumulation of air partly swallowed into the pharynx. 2. Air penetrates more or less into the esophagus but does not reach the stomach and is rejected immediately through the mouth. 3. Air penetrates into
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