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

by Unknown

HISTORY.—The records of medicine furnish simple evidence of the prevalence of gout in all ancient as well as in modern civilized communities. Its origin in the perversion of physiological functions was as clearly recognized by the prophets of the old testament of the medical art as it is by the founders of the gospel of modern science. The refined processes of animal chemistry have simply revealed the materies morbi which was foreshadowed in the "peccant matters" of the humoralists, which were supposed to be distilled into the joints and other structures, provoking inflammation and tophous deposits. This is the most notable and interesting fact in the history of gout, that it has from the earliest times been regarded as a specific form of arthritis and dependent upon the circulation in the blood of peccant matter. It was not, however, until the latter part of the eighteenth century, when Murray Forbes, and a few years later Wollaston, called attention to the fact that uric acid was the chief ingredient in urinary calculi and in tophous deposits, that our knowledge of the pathology of gout may be said to have had its beginning. The demonstration by Garrod, in 1848, of the presence of lithate of soda in the blood of gouty persons, also marks an era in the history of the pathology of gout.

While the humoralistic theory of gout has prevailed almost to the exclusion of all others, it is historically interesting to note that the views of the solidists, as represented by Cullen, who maintained that "gout was an affection of the nervous system in which the primary moving powers of the whole system are lodged," have been recently revived and are attracting considerable attention.

ETIOLOGY: PREDISPOSING CAUSES.—Heredity may be regarded as the most prominent of the predisposing causes of gout. Statistics of arthritic gout show this tendency in a varying but always large proportion of cases. Scudamore observed it in nearly 60 per cent. of his cases; Garrod, in 50 per cent. of his hospital cases and, in a much larger proportion, in his private practice; Gairdner found it in 140 out of 156 cases. If all the manifestations of the gouty vice were taken into consideration in determining the influence of heredity, it would doubtless be shown in a still larger percentage of cases.

It is generally supposed that there is a greater frequency of inheritance from the male ancestors and in the male descendants. This may be explained by the fact that men are more exposed to the other predisposing and to the exciting causes of gout. My own experience leads me to suspect that if we took into consideration the irregular manifestations of this morbid inheritance, we should find it as frequently in the female, both in the ascending and descending line; of the greater frequency of acute articular gout, however, in the male, there can be no question. While it is true that acute attacks are comparatively rare in women, both before and after the menopause, it is undeniable that the subacute and chronic forms of gouty arthritis are by no means rare in them, both before and after the cessation of menstruation. The Hippocratic proposition that women enjoy immunity from gout by reason of the menstrual flux can hardly be entitled to much consideration in view of the fact that they are commonly less exposed to the exciting causes of the disease, and that when they subject themselves to the same vicious habits which entail the disease in men they suffer like men.

Statistics as to the age at which articular gout is most often developed show that the larger proportion of cases occurs in the decade from thirty or forty. It is rare before twenty, and the frequency diminishes rapidly after sixty. Some well-authenticated cases have been observed before puberty in children in whom the hereditary taint was strongly developed. Gairdner claims to have seen several cases in infants at the breast. Trousseau saw a case in a boy aged six, and Garrod in a youth of sixteen. At the other extreme Garrod reports a first attack at the age of eighty, and another in the ninetieth year. The cases at the extremes of age are certainly rare, and other causes of arthritic inflammation might easily be invoked to explain them. It is a significant fact that the largest proportion of attacks of acute articular gout occurs after the period of complete development is ended and before the period of degenerative changes has begun, when the necessities of growth have ceased and food is required only for the nutrition of the tissues, the maintenance of vital energies, and the demands of work.

Much stress was laid by the earlier writers on the effect of temperament as a predisposing cause of gout. The vague ideas involved in the classification of mankind according to temperament may be said to have lost their influence in the scientific conceptions of modern pathology. Gout is observed in persons exhibiting the most diverse peculiarities in physical conformation and physical disposition. The true interpretation of the facts in regard to the relations of temperament to gout, so far as those relations exist, would seem to be that the conditions which give rise to gout are responsible also for the physical and moral idiosyncrasies of gouty subjects.

A vicious hygiene may be regarded as one of the chief predisposing causes of gout. The disease is essentially one of advanced civilization, and is alike the product of the luxury and the misery which a high civilization entails. It is a common error to suppose that gout is the consequence only of luxurious living. If the essential cause of the disease is the circulation of imperfectly oxidized plasma, then there are two ways in which this defective oxidation may be brought about: either there is an excess of food ingested beyond the capacity of the individual, under the most favorable conditions, to consume, or the conditions of oxidation may be so impaired that the complete combustion of even a moderate supply of food is impossible. Perfect oxidation requires an even balance between the amount of food ingested and the oxygen inhaled. A consideration of this axiom explains several circumstances in the history of gout. As has been remarked, the disease is rare during the period of growth and development, when the processes of nutrition are active and the consumption of food in excessive quantities is rendered possible by the large demands for the needs of the growing body and for the development of active energy. It is common in adult life when the processes of nutrition are less active, when growth is complete, and when the supply of food must be regulated according to the amount of energy to be developed. It must also be observed that while the disease is most frequently caused by excesses in the consumption of food, it is also often the consequence of an insufficient supply of pure air; hence we find it often among those who cannot be accused of gluttony, but whose occupations or poverty compel them to live and work in a vitiated atmosphere.

The influence of alcoholic liquors in the production of gouty dyscrasia is generally acknowledged. There seems to be a striking difference, however, in the effects of the distilled and fermented preparations of alcohol in this respect. Gout is certainly more prevalent in countries where large amounts of fermented liquors are used than in those where distilled spirits are chiefly consumed. The disease is more prevalent, for example, in England than in Scotland or Ireland, especially among the lower classes; it is said also that it is rare in Russia and Poland, where spirits are more exclusively used. There is a difference also in the predisposing influence of the different varieties of fermented liquors in the production of gouty dyscrasia. The heavier wines, sherry, madeira, and port, are known to be more mischievous in this respect than the lighter wines of France and Germany, though there is abundant clinical evidence of the fact that even these wines, and especially the richer clarets. Burgundies, and Rhine wines, frequently give rise to acute gout and the gouty habit. There can be no question as to the pernicious effects of the malt liquors as gout-producers. The great frequency of gouty diseases particularly among the lower classes who consume these beverages in large quantities is undeniable. This is true especially of the stronger English and Scotch ales, and to a less degree of the lighter English, American, and German beers. The effect of cider and perry as gout-producers is also well recognized. It has been observed in certain districts of England where cider is largely consumed, and, though acute articular gout is said not to be a common disease in New England, where cider has always been much used, there can be no question that it often leads to the development of the irregular forms of gout. As one of the forms of fermented alcoholic beverages containing, in its fresh state especially, a large amount of sugar, it favors the production of the acid dyspepsia which is a common antecedent in the formation of a gouty dyscrasia.

In 1854, Garrod called attention to the fact that a considerable proportion of the gouty patients in hospital practice—at least 30 per cent.—was represented by painters and other workers in lead. This statement has since been confirmed by other observers, and the association of the characteristic symptoms of this form of metallic poisoning, such as the blue line on the gums, colic, and the different forms of paralysis, with both articular and visceral gout, especially the contracted kidney, is certainly frequent. The relation, however, of saturnine poisoning to gout in this association is not easy to determine, Garrod himself pointing out that while the women in the lead-works frequently had the colic, they but rarely had gout. The difference in susceptibility of different individuals to all forms of metallic poisoning is well recognized. It is more strikingly observed perhaps in mercurial and arsenical poisoning than in that of lead. It is well known that the internal use of lead as an astringent in cases of hemorrhage and intestinal catarrh is occasionally, though very rarely, followed by the evidences of lead-poisoning. This difference in susceptibility is perhaps explicable on the theory that persons inclined to gout have less power in eliminating the metal than those who are not gouty, so that it is possible that plumbism is the effect rather than the cause of gout, as has been commonly supposed.

Tanquerel des Planches found none of those changes in the kidneys as the result of plumbism such as are frequently met with in gout, and Rosenstein, who was able to produce saturnine epilepsy in dogs, found no renal changes to have occurred. Charcot and Gombault in recent experiments of feeding guinea-pigs with lead found changes in the kidneys similar to those produced by tying the ureters.