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

by Unknown

1st, the improvement of the primary digestion.

2d, the relief of the gastro-intestinal catarrh, which is the cause of the direct and reflex dyspeptic symptoms which belong to this diathesis.

3d, the augmentation of food-oxidation, so as to secure its thorough combustion.

4th, the promotion of the elimination of the waste products of nutrition.

1. The improvement of primary digestion—or, as it has been aptly called, exterior digestion—often requires very strict attention beyond the proper selection of alimentary substances. The distressing symptoms that indicate primary gastric and intestinal indigestion are certainly often relieved by the rigid exclusion of certain articles of diet, but in many cases it is necessary to assist the preparatory processes which are essential to perfect food-absorption by artificial methods based upon the knowledge derived from physiological experiment. To no one is the knowledge of these methods more largely due than to Roberts of Manchester. Preparations of pepsin and pancreatin, by which the proteids and starches are peptonized and the fats emulsified, are often of inestimable value in the treatment of gouty dyspepsia. Pancreatin, especially, which by means of its trypsin, diastase, and emulsive ferment possesses the threefold property of aiding the digestion of the azotized, amylaceous, and fatty elements of food, is certainly the most valuable of the artificial means for augmenting the efficiency of primary digestion.

2. The relief of the gastro-intestinal catarrh in gouty dyspeptics may often be accomplished solely by dietetic restrictions and by the aid which may be given to primary digestion. It is often necessary, however, to direct some special medication toward the relief of the catarrhal lesion. The circumstances which demand this special medication are the existence of portal congestion, the result of functional derangement, or of chronic atrophy of the liver, or of chronic diffuse or interstitial nephritis, or of cardiac disease. The hydragogues, such as calomel, podophyllin, colocynth, and other vegetable cathartics, with the salts of sodium and magnesium, constitute the most common and efficient means of relieving portal congestion, whether it arise from temporary functional derangement or from organic disease. The renown of some of the more famous mineral springs in relieving the miseries of gouty sufferers is due mainly to the relief of portal congestion and the washing away of the catarrhal mucus which obstructs the process of primary food transformation and absorption. This is especially true of the sulphate of sodium waters, like those of Carlsbad, Marienbad, Friedrichshall, Pullna, and Hunyadi János. While the value of these waters in chronic gout is unquestionable where their use is properly regulated, there is good reason to believe that their long-continued employment is often harmful by relaxing the mucous membrane, and thereby tending to aggravate the condition they are given to relieve. This is markedly true of their use in weak and anæmic persons. For these the milder magnesian waters, such as those of Kissengen, Hombourg, Wiesbaden, and Saratoga, are to be preferred.

3. The augmentation of food-oxidation may be accomplished in a large degree by regulation of the diet and by out-door exercise. The regulation of the diet according to the occupation and habits of life is a point of primary importance in securing proper blood-elaboration. My experience leads me to believe that the evil consequences of in-door occupations and sedentary habits are most common in those who live upon a diet composed largely of starchy and saccharine foods, and that a diet in which animal foods and fats predominate is best suited to indoor workers, whether they be engaged in mechanical or intellectual labor.

The medicines which help to promote the oxidation of the food-elements, especially the carbohydrates, are alkalies and iron. Clinical observation establishes this fact as strongly in the treatment of gout as in that of glycosuria. The relative power of the salts of potassium and sodium in augmenting oxidation is not clearly determined. The salts of sodium appear to be most useful in aiding the process of primary digestion, and the potassium salts in improving the process of sanguification. It is well known that potash predominates in the corpuscles and soda in the serum of the blood. The efficacy of the combinations of iron with the salts of potassium, as in Blaud's pills and in the citrate and tartrate of iron and potassium, in the treatment of anæmia, is well known. In the most renowned ferruginous springs, however, such as those of Schwalbach, Spa, Pyrmont, and St. Moritz, the iron is combined with salts of sodium, calcium, and magnesium. It would appear, therefore, that the increased energy of iron in augmenting hæmatosis, when combined with alkalies, is not relatively greater with potash than with either of the other alkaline bases.

4. The promotion of the elimination of the waste products of nutrition is to be accomplished by remedies which act as solvents of uric acid and as diuretics. As solvents of uric acid the salts of lithia and potash have been shown to be superior to those of soda. The urate of lithia is the most soluble of the uric-acid salts, and the low chemical equivalent of the metal lithium makes the neutralizing power of the oxide much greater than that of equal proportions of the other alkalies. It is used in the forms of carbonate and citrate, and is generally combined with potash and soda. It exists in some of the mineral springs of Europe and of this country, but in such minute proportion as probably to be of little value. In administering the salts of potash and soda it is generally admitted that the carbonates and the neutral salts of the organic acids are to be preferred to solutions of the caustic alkalies. They have less power in neutralizing the acid of the gastric juice, and enter the circulation as neutral salts, where they are decomposed into alkaline carbonates by the oxidation of the organic acids, increasing the alkalinity of the serum and acting as diuretics. The combinations of the alkalies with sulphur, with iodine, and with mineral acids, as in the alkaline springs, are frequently used in the treatment of gouty lesions of the subacute variety. The sulphur salts probably owe their chief value to their alkaline bases when they are used internally; and in sulphuretted baths, as before remarked, the good effects are probably due to the high temperature at which the bath is usually administered.

The salts of iodine are generally supposed to have a special action in removing the consequences of chronic fibrous inflammation in gout and rheumatism. They often disturb the digestion and provoke troublesome irritations of the skin and mucous membranes. In removing the sclerotic effects of gouty inflammation they do not exhibit the same sorbefacient power which they show in their action upon the granulation tissue of syphilitic origin. It must be admitted, however, that in certain catarrhal affections of a gouty nature the iodides of potassium and sodium are almost specific in their good effects. In the pharyngeal, laryngeal, and bronchial catarrhs from which some gouty persons suffer, where there is a dryness and irritability of the mucous membrane, the administration of these salts produces the most prompt and beneficial result. As solvents of uric acid they do not appear to equal the salts of the organic acids.