PROGNOSIS.—The prognosis of scurvy is always favorable in the early stages, and even in the very worst recovery occurs under improved hygienic surroundings with remarkable promptness and certainty. It must not be overlooked, however, that sudden death may occur in seemingly light cases from failure of the heart's action or from embolism. There is a ready disposition to the recurrence of the disease under slight causes, and it may so impair the health as to lead to the development of other fatal maladies. The gravity of the case is to be gauged not so much by its seeming severity as by the accessibility of proper food-supplies, for without these the worst results may be expected. Where the case is embarrassed with complications of the respiratory and circulatory organs, involvement of the bones, and intercurrent diseases, the outlook becomes correspondingly grave.
Throughout the world, in recent times, greater areas of territory are devoted to agriculture and horticulture, and the products are distributed over wide extents of country by the increased facilities of communication by the highways and railroads, so that it would now be impossible for an epidemic of scurvy to devastate a region of country so provided as it did a century ago, or might do and has done in regions of country where tillage is neglected and communications are cut off by an absence of roads from more productive centres, as in Southern and Eastern Russia.
Hygienic improvements that have almost stamped out scurvy on shore have also done good service for mariners, and thousands of ships now cross the ocean on long cruises with perfect security from the disease. In the naval services of the world, as has been already shown, the disease is rarely encountered, and it is greatly diminished in the merchant marine, from which, it is hoped, in a few years, by a more rigid enforcement of existing laws for the protection of sailors, it may also entirely disappear. Even in exceptionally long and arduous cruises, as in the Arctic regions, the disease may be arrested, as was the case with the Jeannette, which was drifted about, locked up in ice, for sixteen months, yet only a single case of scurvy appeared.
It is of the first importance to enlist a healthy crew for long voyages, free from previous syphilitic, scorbutic, or other constitutional taint; then, by observing proper hygienic precautions, to maintain their health. One of the prime factors in securing this result is a suitable dietary. The improved methods of preserving food afford facilities for storing up adequate quantities of both kinds, animal and vegetable, to last the cruise. To economize these stores it will be well to start with a stock of live animals and recent vegetables, such as can be now had in almost any quantity in any considerable maritime city, and not until these are consumed are the canned and preserved supplies to be opened. All the ordinary meats, as beef, mutton, veal, and lamb; most vegetable products, as asparagus, beans, peas, potatoes, and a great variety of fruits, as peaches, plums, berries, etc., are obtainable at moderate expense, and should form an integral portion of the ration. Eggs can be easily preserved so as to keep for months by simply packing them in plaster or in salt, and they furnish a valuable and acceptable article of diet. Among articles of great nutritive value milk takes high rank, and it can be preserved sweet and pure indefinitely. Sauer-kraut is an antiscorbutic of considerable virtue, and should not be overlooked in laying in stores for a distant cruise. Cheese and oatmeal will be found useful additions to the ordinary ration.
It may be proper to state in the event of the occurrence of scurvy and the exhaustion of the fresh vegetable stores that various quickly-growing vegetables, such as mustard, radishes, turnips, and cresses, could be cultivated on shipboard if seeds are provided.
With such a varied dietary, comprehended in the above enumeration, it would be impossible for scurvy to invade the ship's company, especially when aided by other wholesome agencies, as cleanliness, well-ventilated and dry sleeping rooms, and clothing adapted to the weather. The antiscorbutic virtues of lime-juice were known long ago, being mentioned by Albertus in 1593, but it was not until many years later that it became an integral part of the English navy-ration. The law requires it to be carried on board all merchant vessels, and to be served out ten days after the crew has been living on salt rations. The juice keeps well if properly prepared and preserved from contact with air, especially when fortified with a small quantity of alcohol, the usual strength being about 10 per cent. It should be carried in vessels containing just enough to furnish a few days' rations to the whole crew, by which plan only a small amount need be exposed to the decomposing influence of the air. The juice can be reduced by evaporation to a very small bulk. This method was adopted in supplying the Arctic cruiser Rodgers.20 The juice was reduced to a paste, each pound of which represented one gallon of the solution of the ordinary strength. It has also been used in the form of lozenges and biscuit. It may be stated that great reliance has been placed upon malt, the acid wines, and cider as good antiscorbutics.
20 Report of the Surgeon-General of the Navy for 1880.
In connection with the food-supplies it is proper to mention those influences of a depressing character which have a tendency to favor the development of scurvy. The first is dampness in the sleeping apartments of the men. This should be prevented by ventilation, drying stoves, and taking care that no wet garments are permitted to remain in the apartments. They should be taken off immediately and hung outside to dry, and under no circumstances should the men be permitted to sleep in them, as is sometimes done.
Exposure to cold is unavoidable under certain conditions, and the men should then be protected by proper clothing adapted to the weather. Protracted fatigue is a third favoring circumstance, and the crew should be spared all the strain of hard work possible, especially in high latitudes. The apartments should also be kept well ventilated and scrupulously clean; and, lastly, depressing mental emotions, which are so apt to arise from exposure to danger and want, should be dispelled by cheering assurances, constant occupation, and whatever amusements can be had. These are the chief influences which are to be considered in adopting measures to prevent the occurrence of scurvy in communities, armies, on shipboard, or in persons confined in houses of detention.
The therapeusis of scurvy presents no intricate problems for solution. Its origin in dietetic errors is admitted by almost common consent, and it is surprising with what rapidity patients apparently beyond hope of recovery gather health and strength with a change in the character of the food. This is indispensable in the treatment, as drugs have little or no curative influence without it; and, therefore, the first object should be to supply the patient with lemon-juice or acescent fruits and fresh vegetables, as garlic, mustard, cresses, sorrel, nasturtium, taraxacum among the wild plants, and potatoes, onions, turnips, beets, radishes, etc. among the domesticated plants. And in conjunction with these fresh meats, in the form of soups if the solids cannot be masticated, may be used with advantage. Ordinarily, the dietetic treatment alone will suffice to re-establish the health. Should, however, convalescence be delayed, the vegetable bitters with the mineral acids and ferruginous tonics and quinia will furnish useful adjuvants. These are the standard remedies; others have been recommended at various times, as the juice of the maguey, a Mexican plant, potassium nitrate alone or combined with vinegar, tincture of cantharides, etc.