A system of practical medicine. By American authors. Vol. 2

by Unknown

The strictly localized pain is probably caused by direct irritation confined to the nerves in the floor of the ulcer. In the diffuse gastralgic attacks the irritation radiates or is reflected to the neighboring nerves, and sometimes to those at a distance.

In most cases of gastric ulcer localized epigastric pain and diffuse gastralgic paroxysms are combined.

The painful sense of oppression and fulness in the epigastrium which is felt in many cases of gastric ulcer after eating is simply a dyspeptic symptom, and is probably referable to an associated chronic catarrhal gastritis. This dyspeptic pain is of little value in diagnosis.

Most subjects of gastric ulcer feel in the intervals between the paroxysms a more or less constant dull pain, or it may be only a sense of uneasiness, in the epigastrium. When sharp epigastric pain is felt continuously, it is usually inferred that the ulcer has extended to the peritoneum and has caused a circumscribed peritonitis, but this inference is not altogether trustworthy.

The quality of the pain caused by gastric ulcer is described variously as burning, gnawing, boring, less frequently as lancinating.

More important than the quality is the situation of the pain. The situation of the localized pain is usually at or a little below the ensiform cartilage. It may, however, be felt as low as the umbilicus or it may deviate to the hypochondria. In addition to pain in the epigastrium (point épigastrique), Cruveilhier called attention to the frequent presence of pain in the dorsal region (point rachidien). The dorsal pain, which may be more severe than the epigastric, is sometimes interscapular, and sometimes corresponds to the lowest dorsal or to the upper lumbar vertebræ. It is usually a little to the left of the spine. The pain is often described as extending from the pit of the stomach through to the back.

According to Brinton, the situation of the localized pain gives a clue to the situation of the ulcer, pain near the left border of the ensiform cartilage indicating ulcer near the cardiac orifice, pain in the median line and to the right of this indicating ulcer of the pyloric region, and pain in the left hypochondrium indicating ulcer of the fundus. It does not often happen that the pain remains so sharply localized as to make possible this diagnosis, even if the situation of the pain were a safe guide.

Of the various circumstances which influence the severity of the pain in gastric ulcer, the most important is the effect of food. Pain usually comes on within a few minutes to half an hour after taking food, although it may appear immediately after ingestion or be delayed for an hour or more. The pain continues until the stomach is relieved of its contents by vomiting or by their passage into the duodenum. It is unsafe to attempt to diagnose the position of the ulcer merely from the length of time which elapses between the ingestion of food and the onset of pain. It has sometimes been noticed that as improvement progresses pain comes on later and later after eating. As might naturally be expected, coarse, indigestible, imperfectly-masticated food, sour and spirituous liquids, and hot substances are more irritating than bland articles of diet. In some exceptional cases the ingestion of even coarse food, instead of aggravating, has had no effect upon the pain, or at least for the time being has even relieved it.

External pressure usually increases the intensity of the pain of gastric ulcer; in rare instances pressure relieves the pain.

Rest and the recumbent posture as a rule alleviate the pain of ulcer of the stomach. The position of the patient may affect the severity of the pain in a more striking way. It may naturally be supposed that that posture is most agreeable which removes from the ulcer the weight of the food during digestion. Hence it was claimed by Osborne³⁸ that the site of the ulcer could often be inferred from the effect of posture on the pain. Thus, relief in the prone position would indicate ulcer of the posterior wall; relief in the supine position, ulcer of the anterior wall; relief on the left or on the right side, ulcer of the pyloric or of the cardiac region respectively. As ulcer of the posterior wall is the most frequent, relief should be obtained oftener by bending forward or by lying on the face than in the supine position. Experience has shown that the influence of posture on the pain is not a safe guide in diagnosing the location of the ulcer.