Part 119

Probably no sanitary cordon nor any quarantine will invariably and completely exclude cholera, since it is transmissible by living men and by water and by fomites of various descriptions, and, worst of all, by men who neither exhibit its characteristic symptoms nor are conscious of the poison which they conceal and disseminate. But, as has already been urged, it is no argument against preventive measures that they are not absolutely perfect in their efficiency. If they sometimes succeed in arresting the progress of cholera, and if they always, when honestly executed, lessen the number of channels through which the infection can be conveyed, and thereby reduce to a minimum its fatal effects, they ought to be maintained and perfected, and not decried or abolished. It is difficult to characterize that state of mind which concludes against the use of a salutary measure because its efficiency is not absolute, the more so when it is admitted that its inefficiency is not intrinsic, but due to negligent, and even fraudulent, administration. The preponderance of official and personal authority is altogether on the side of the necessity of a quarantine, not in its literal, but in its technical, sense. The International Medical Congress of 1874 declared as follows: "Quarantine ought to be limited to the time requisite for the examination and disinfection of the ship, the crew, and the passengers; and if there be no disease on board the latter should be released immediately after disinfection. But if there be cholera or sickness of a doubtful nature on board, it will be necessary to isolate and disinfect the ship also." The same congress, however, wholly condemned land quarantines, apparently upon the sole ground of the extreme difficulty of rendering them efficient--an argument, as before remarked, that touches not the principle of the measure, but only the manner of its execution. In this respect the congress occupied a lower position than its predecessor of 1866, which held that the futility of {757} quarantine in "arresting the march of cholera" arose "rather from the unintelligent application of the measure than from any fallacy in its principle."

It would burden this narrative even to enumerate the instances in which a strict quarantine has protected places to which cholera has been carried by sea. In the United States numerous examples might be given of seaports into which cholera was brought from foreign countries, and within whose quarantine stations it was confined by rigid sanitary regulations; but it is sufficient to cite the case of New York, through whose quarantine at Staten Island nine-tenths of all emigrants to America have passed. Writing in 1867, Dr. Peters said: "There have been fourteen epidemics of cholera at Staten Island, and only four have reached New York." A large number of illustrations has been collected by Dr. Smart, Inspector-General, R. N., who sums up the matter as follows: "Believing that cholera has frequently been excluded from islands by quarantine, and as often introduced by its non-observance, I regard it as a truly preventive measure; but, recognizing the impracticability of exacting it under many circumstances, I would insist on the most strict isolation of all the first cases or units of disease, whether introduced from without or originating from relationship to introduced cases, or persons or goods imported from infected countries."

While experience demonstrates the efficacy, and therefore the necessity, of quarantine against cholera in seaports, it has also shown that the same agent of prevention need not be invariably and rigidly applied. When quarantine meant literally a detention, and almost an incarceration, for forty days, it often failed through its very rigor at a time when proper methods of disinfecting ships, cargoes, crews, and passengers were either unknown or inefficiently applied. It is now certain that quarantine may be reduced to a fraction of its original duration, and yet possess a much greater degree of efficiency, its length depending upon the number and the sanitary condition of the crew, etc., the nature of the cargo, etc. It is evident that a ship carrying only cabin passengers is less open to suspicion than one crowded with filthy emigrants, although both may have sailed from the same cholera-infected port. A more liberal rule may govern the one than the other; and in the second case a rigid inspection and cleansing of luggage may be imperative which would be superfluous as well as vexatious in the first case. The importance of such a treatment of emigrants' effects has already been illustrated by cases in which they caused an outbreak of cholera after having been carried from a seaport into an interior town many hundreds of miles distant.

In regard to the time during which a vessel that has had cholera on board within a week or ten days should be detained under sanitary inspection and treatment, including a thorough cleansing of the passengers and their effects, no absolute rule can be laid down; but it would appear that if no suspicious cases arise within a week, there need be little apprehension that any will occur.

The sanitary measures which should be undertaken wherever there is reason to fear an invasion of cholera are, in the first place, such as are {758} equally appropriate in anticipation of any infectious and contagious epidemic disease, and relate especially to the removal of all sources of putrid emanations, whether in stagnant ponds, in streets, markets, shambles, sewers, privies, cellars, or inhabited rooms; for these influences, although they do not cause cholera, yet, by lowering the vitality of persons exposed to them, create an abnormal susceptibility to disease. Many instances in Europe might be cited to prove that whole cities, which in the earlier epidemics were devastated by cholera, were either spared entirely in the later ones or suffered in a far less degree. The measures which proved most efficient were an improved water-supply and a better system of sewerage; and this fact strongly corroborates the belief that contaminated water and fecal emanations are the principal agents in propagating this disease. Cleanliness is the best disinfectant, but during epidemics of cholera, as of other diseases, the popular faith is very strong in numerous articles called by that name. The real value of these preparations is commercial rather than sanitary, but, indirectly, they are useful by prompting those who use them to be more diligent in searching out and removing many sources of air-contamination that perhaps invite and intensify attacks of cholera.

The disinfectants in common use comprise chlorine gas, chlorinated soda, chloride of zinc, sulphate of iron, permanganate of potassium, carbolic acid, and the fumes of burning sulphur. Some of them--and especially the chloride of zinc, sulphate of iron, the permanganate of potassium, and carbolic acid--are supposed to be capable of destroying the infectious principle of the vomit and stools. Another method is to receive such matters in vessels containing saw-dust, which, after being dried, is consumed by fire; and still another is to mix them with dry earth and bury them. If they are thrown into water-closets or privies, they should have added to them a portion of sulphate of iron. Whatever has been used by cholera patients should be destroyed, unless of value, and in that case it should be thoroughly purified by hot air or boiling water and long exposure to the sun. The importance of having large and well-ventilated rooms for cholera patients is very great, but less, perhaps, for the patients themselves than for their medical attendants and nurses. All persons should be excluded from them who are not required by the duties of the sick chamber, and in case of death funeral assemblages ought not to be allowed; nor, during a cholera epidemic, ought crowded assemblies for any purpose to be permitted.

During epidemics of cholera, as of some other diseases, the liability to be attacked is greatest when the vital powers are depressed by mental or by physical causes. Hence it is desirable that one's courage and confidence should repose upon a consciousness of having done whatever is recognized as proper to ward off the disease--not by a minute, watchful, and anxious attention to rules at every step, but by such a general care of the health as good sense and experience enjoin. Undoubtedly, other things being equal, the weak, sickly, careless, and imprudent are more liable to suffer than the strong and cautious, and therefore it is incumbent upon all to maintain as high a degree of health as possible, avoiding not only all probable sources of contagion, direct or indirect, but excessive fatigue, catching cold, depressing emotions, sexual excesses, etc. During the first cholera epidemics in this country it was considered so dangerous {759} to eat fruit and fresh vegetables that many persons lived entirely upon meat, rice, and bread. Such a regimen intensified choleraphobia, and was also an unsuitable midsummer diet. There is no reason to believe that any intrinsically wholesome food need be prohibited during the prevalence of cholera.

The one article of diet about which the greatest and most peculiar care should be taken is water. It is the first duty of towns supplied with water from a common source to be sure that it is, and continues to be, uncontaminated. Well-water should be used as little as possible after the disease has made its appearance, and, as an additional precaution, no water should be drunken that has not previously been boiled. Where ice can be procured it may be used to restore the boiled water to an agreeable temperature for drinking. Filtered water, provided that it be properly filtered, may likewise be regarded as innocuous.

TREATMENT.--If regard be had to the various methods and particular medicines which have been used in the treatment of cholera, it will appear that in hardly any other acute disease has a greater number or variety been employed. If, on the other hand, we endeavor to learn what measures have been really and generally curative in cholera, and what are they to which, on the occurrence of an epidemic of the disease, we may turn with confidence in their power to cure, the result of the investigation is disheartening, and adds to the accumulated proofs that the power of medical art is exceedingly restricted. To this conclusion we must assent at whatever cost to a faith which is strong in proportion to the ignorance out of which it grows. Nor, if we consider the matter rationally, ought we to be surprised or humiliated on account of the comparative helplessness of medicine in this disease, since, if we reflect upon it, the case is by no means peculiar or exceptional. Every disease that may become mortal occurs more or less frequently with phenomena which place it beyond the resources of therapeutics as completely as cholera is in its most malignant forms; and yet no one lays it to the charge of medicine that the various fevers, for example, are at times utterly uninfluenced by the most rational and judicious treatment. Nor does any one bring a railing accusation against medicine when accident fatally damages a part essential to life.

One accident of frequent occurrence presents a certain analogy to cholera in its effects, and that is a burn or scald involving a very large portion of the skin. In cases of this sort experience assures us that death is almost inevitable, and that the duty of the physician is to avoid officious and meddlesome treatment, and address himself to soothe the patient's suffering and maintain his strength, if haply the powers of nature may triumph over the effects of the injury. This, too, is the lesson, substantially, which experience has taught respecting cholera. It is certain that in this disease the function of the whole gastro-intestinal mucous membrane is reversed, and that it is no longer a secreting and absorbing organ, but one almost exclusively exhaling, and that through it the liquid which is essential to carrying on the functions is rapidly running away. If the lesion on which this symptom depends is complete, if the gastro-intestinal mucous membrane has entirely lost its natural function, evidently it is quite futile to address any treatment to this organ. But if, as probably happens in a great majority of the cases, the {760} disorganization takes place gradually, it is evident that there is more to hope from remedies when the disease is gradually developed than when it reaches its acme at a single bound and leaves no time for medical intervention. The one unmistakable lesson that experience teaches respecting the treatment of cholera is, that its success depends upon its prompt and early application. Almost as distinctly does observation teach that subsequently to the first (or diarrhoeal) stage the comparative value of different methods and individual medicines is very uncertain. And, finally, it would seem that in this, as in other acute diseases, intelligent and careful nursing and regimen are quite as important as any medicinal treatment whatever. However a false notion of the power of medicine may blind us to the fact, it is none the less a fact, that if different methods of treatment are compared, that method gives the best results which is least perturbative. For example, in England, on board of a hospital ship, were 85 cases, of which 19 treated by quinine gave 12 deaths, 12 by calomel gave 2 deaths, 12 by carbolic acid gave 3 deaths, and 37 by "Nil" gave 1 death. Or, again, in 1865, at the London Hospital, 159 patients were treated--48 with a mixture containing logwood, ether, aromatic sulphuric acid, camphor, and capsicum, of whom 31 died; 56 with sweetened water, of whom 28 died; 21 with castor oil, of whom 14 died; and 20 with "saline lemonade," of whom 6 died. In the last example the deaths during the use of the astringent mixture were twice as great as under sugar and water, and under castor oil twice as great as under "saline lemonade."

We shall first give an account of the management of cholera in general, and then consider some of the particular medicines used in its treatment.

The essential elements of all plans of treatment for this disease, as for so many others, are rest and abstinence. Whatever else may be done, nothing avails without them. This remark applies emphatically to the premonitory diarrhoea; if it is neglected it may readily be converted into the full-formed disease. It is therefore essential, during the prevalence of cholera, that whoever is attacked with diarrhoea should at once give up all active occupation, and confine himself to a recumbent posture and to the use of food of the blandest quality, such as mucilages and similar preparations, especially of rice, which, less than any other vegetable food, is liable to fermentation during digestion. It is prudent to drink no water that has not been boiled. If there is reason to believe that the bowels retain feces from before the attack, it is generally thought advisable to administer a laxative dose of castor oil, to procure the discharge of matters which would act as irritants. Except for this purpose purgatives are neither indicated nor expedient. In a large number of cases nothing more is necessary than the use of means to check the action of the bowels, and which should consist of absorbents or antacids, astringents, and opiates as they are contained in the officinal chalk mixture, with the addition of tincture of kino or catechu and a small proportion of laudanum. This medicine should be given in dessertspoonful doses at intervals of not more than an hour.

If, instead of a diarrhoea which differs from ordinary dyspeptic diarrhoea chiefly by its watery character, there should also be colic and profuse discharges, it is proper to add to the medicines just suggested some which are of a decidedly stimulant character, such as the essential oils of {761} cajeput, cloves, cinnamon, peppermint, etc., with which chloroform, ether, or Hoffman's anodyne may be associated. At the same time rubefacient embrocations may be applied to the abdomen, which should also be compressed slightly with a broad flannel bandage. Instead of these stimulants, and perhaps more efficiently, may be used a simple epithem made by dipping a large towel several times folded in cold or cool water, applying it so as to cover the whole abdomen, and then enveloping it and the body with a dry towel. This application is more soothing than any liniment and its action is more constant. Instead of any of these agents dry heat may be used, obtained from bags of hot salt or sand, or moist heat from thick poultices of flaxseed meal or Indian corn meal or similar substances enclosed in flannel bags and applied to the abdomen while they are as hot as can be borne. It is difficult to determine which of these applications is the most useful. But, on the whole, heat is preferable to rubefacients, and moist to dry heat. The cold-water dressing is probably best suited to young and robust persons.

It must be remembered that between choleraic diarrhoea and cholera in its complete form there are several grades, in one of the most common of which a tendency to vomit, and even a certain amount of vomiting, accompanies the diarrhoea. Anti-emetic remedies are then indicated. They may consist externally of rubefacient and aromatic applications to the epigastrium (especially the spice poultice); and it is claimed that a hypodermic injection of morphia in this part is very efficient. Internally, the best remedies are ice swallowed in small pieces and small but frequent draughts of iced carbonated water or iced champagne. Where these liquids cannot be procured, effervescing powders used in the same way form a very good substitute for them. If, notwithstanding such remedies, the diarrhoea continues or if it tends to increase, astringent and absorbent medicines may be substituted for them; for example, bismuth may be given instead of chalk, and if this also fails acetate of lead may be prescribed. The last may be used by the rectum as well as by the mouth, but with very questionable advantage. Meanwhile, especial care should be taken to avoid giving so much of any opiate as will induce sopor or excite nausea.

Whoever has had the care of cholera patients has probably, at first, felt sanguine of success in their treatment, even after the characteristic discharges and the symptoms of collapse had set in; but a little more experience has proved their hope to be deceptive, and revealed the reason of it in the absolute suspension of the sensibility and absorbent function of the digestive canal. Hence the dismal unanimity of all medical authors, who from actual observation of cholera have declared that no treatment avails to arrest the fully-developed disease. And yet there is some encouragement in the fact that recoveries sometimes occur from even the most desperate state of collapse and under the most dissimilar methods of treatment; so that the physician is warranted in not yielding to discouragement and in cheering his patients with hope even to the end of life. The popular dread of this, and indeed of all epidemics, is sure to be exaggerated, and it therefore behooves the physician to combat the fears of his patients, and by a cheerful manner as well as encouraging words administer the cordial of hope, which often proves stronger than pharmaceutic elixirs.

{762} It may be well to enumerate, as many do, the indications of treatment in the active stage of cholera, but they really need no such specification. It is evident that they consist in combating the symptoms--the vomiting, the purging, the debility, the cyanosis, the cramps, etc.; and the only means by which the carrying out of such indications can even be attempted are neither more nor less than would be used to relieve the same symptoms in other affections. If the evacuations could be controlled, evidently the cramps and the collapse would not occur; but this essential and preliminary step cannot be secured. The medicines introduced into the stomach or rectum are not absorbed, but are speedily rejected; those which are administered subcutaneously are not taken up by the stagnant blood as freely as in other diseases; the nervous system gives little or no response to the mechanical and physiological stimulants applied to the skin. Yet, in spite of these obstacles, the physician must persist in the use of rational methods, in the hope, however faint it may be, that he may succeed in restraining, and possibly in arresting, the fatal course of the attack. For this end he has hardly any means at command except those, or such as those, which were recommended in the first stage of the disease--the anti-emetic and anti-diarrhoeal medicines, which he is only too likely to see rejected as soon as administered. Yet he must not cease to allay the thirst by the repeated administration of small quantities of carbonated and cold liquids, water, or champagne wine, or morsels of ice swallowed whole. The application of pounded ice in a bladder to the epigastrium is a measure of an analogous sort, and is sometimes as efficient as generally it is soothing. In other cases the aromatic poultice seems to answer better. Of irritants little can be said that is favorable, but the combined irritant and anæsthetic action of chloroform is useful, and morphia should be applied to the epigastrium as well as given hypodermically.

If the vomiting tends to become less frequent, acetate of lead may be prescribed, in the hope that it will exert some constringing action upon the gastro-intestinal mucous membrane. The distressing symptom, hiccough, cannot with any certainty be controlled by medicine, but perhaps the inhalation of chloroform is more efficient than any other remedy, as it also is for the cramps in the limbs. For the latter purpose it is preferable to the frictions with flannel or with stimulating liniments which are generally employed. If such liniments are used, care should be taken that they do not contain ingredients that may disorganize the skin either immediately or subsequently. A dangerous compound of the latter sort introduced during the first epidemic of cholera in this country became officinal under the name of liniment of cantharides.

The loss of the water and of the salts it holds in solution in the blood is, as has now been frequently repeated, the chief pathological element of the disease, next after the conjectural cause which injures the mucous membrane of the stomach and bowels. It was rationally indicated, and therefore a method was early practised, to supply this loss by injecting into the veins a solution of sodium salts. The method was seductive as well as rational, for its primary effects were extremely encouraging; it nevertheless failed, and probably for the very reason that suggested its use. Indeed, there is no more reason, if there is as much, to suppose that a liquid artificially introduced into the blood-vessels will be retained when {763} the natural liquor sanguinis cannot be so. Necessarily, the one will escape where the other has escaped.

Certain systematic writers prescribe a method intended, on the one hand, for reviving the animal heat, and on the other for restoring the movement of the circulation. It need hardly be remarked that the two form essentially but one and the same indication. If the circulation is restored the animal heat will revive, but not otherwise. The same treatment leads to both ends, and it consists partly, as already stated, in the use of stimulants, such as alcohol, camphor, coffee, ether, etc.; but their efficacy depends upon their being taken into the blood, and with it reaching the various nervous centres upon which the renewal of functional activity depends. Little, therefore, can be expected from them at the height of the disease--that is, in the stage of collapse--but as soon as any signs of reaction are manifested they tend to promote it, and hence may enable the functions to revive. For this reason they are adapted to persons who are feeble by reason of their tender or their advanced age, or who have previously suffered from ill-health. But if they act at all, and the more they tend to act, they must be employed with circumspection, lest they outrun the purpose of their administration and produce a violent or excessive reaction. Instead of, or in conjunction with, these internal remedies the local stimulants of the skin, already enumerated, may be used with the due precautions, and, in addition, baths at a temperature of 105° F. of water alone or with the addition of salt or mustard; but all such remedies are of little avail until reaction has commenced. Before that event there is reason to believe that the cold bath is preferable, or, still better, frictions of the whole body with cold water, or even with ice, after which the patient should be wrapped in dry and warm blankets. Yet the efficacy of this powerful agency is by no means comparable to that which it produces in the algid forms of malarial fever. The two conditions, although apparently analogous, are, in reality, very different. In the cold stage of fever the mechanism is indeed paralyzed, but none of its mechanical elements are wanting; but in algid cholera there is an actual subtraction of water from the blood, that turns it from a liquid capable of circulating through the narrowest channels into one that stagnates even in the largest vessels. In the one case force is wanting to circulate the blood; in the other there is no normal blood to circulate.

The treatment of the stage of reaction when it does not exceed a moderate degree, consists simply in strictly enforcing the rules for the patient's repose; that is to say, in intelligent nursing. Mental excitement must be forbidden, and neither medicine nor food allowed that is likely to interfere with the gradual and steady progress of convalescence. Of all articles of food, cool water is not only the most urgently desired, but is the most imperatively necessary for replenishing the emptied blood-vessels and restoring the normal functions. But unless great caution is observed it will be taken too freely and provoke a renewal of the discharges. If any food besides water is allowed, it should be of the simplest sort--of whey first, and then of milk in small quantities at a time, with lime-water if it provokes nausea or retching. Afterward thin broths may be given, also in great moderation, and by degrees farinacea in milk and in animal broths. Only when the strength is much improved should even the most {764} digestible meats be permitted. In proportion as convalescence is marked or interrupted by symptoms of undue reaction is it necessary to prolong and render stringent this regimen; and if those symptoms unfortunately arise which oftener, perhaps, depend upon an over-zealous stimulant treatment than upon the natural reaction of the system, they must be combated by measures which will lessen the local congestions, especially of the brain and the lungs, and also by such as will tend to prevent the system from falling into a typhoid state. For the former dry cups applied to the back of the neck, and cold lotions and affusions upon the scalp, are to be recommended, and for the latter dry cups and warm stimulating poultices upon the chest near the affected region. It is probable that the general warm bath, with cold affusion upon the head at the same time, would prove as efficient as it does in analogous states of typhoid affections. If the urinary secretion is suspended or remains scanty, there is not usually an urgent need of using means for its restoration; for that will generally occur when the blood-vessels become replenished. It should, however, be mentioned that, according to Macnamara, if the patient does not pass any urine within thirty-six hours of reaction coming on, ten minims of the tincture of cantharides in an ounce of water should be given every half hour until six doses have been taken, and the patient encouraged to drink freely of water. If this treatment does not cause urine to pass, we must, after the sixth dose, discontinue the medicine for twelve hours, and then repeat it in precisely the same way. The dose here referred to is of the British preparation, and if the use of it were not recommended by so competent an authority its propriety might very properly be challenged.

After the cholera patient has become convalescent his restoration is very apt to be retarded by dyspeptic disorders, for which, perhaps, the best remedy is a judicious use of condiments with the food and of bitter tonics, especially quinine, colombo, quassia, etc., before meals. If there is constipation, it should be corrected by the cautious use of fruits, and, if these prove insufficient, of mild saline laxatives or small doses of castor oil or rhubarb. On the other hand, if there is a tendency to diarrhoea, it should be met by the use of a mild laxative, such as castor oil, magnesia, or rhubarb, followed by chalk or bismuth, and the use for a time of simpler food and in less than the usual quantities.

Having thus furnished a sketch of the plan of treatment of cholera which we regard as dictated by experience, it may be not without some interest to consider certain elements of the method a little more fully, and criticise, in passing, some other remedies which have from time to time been proposed. The first of these is venesection. There was a time when certain physicians, carried away by conceptions of the disease evolved from their inner consciousness, maintained that it consisted essentially of a spasm of the blood-vessels, and that the natural and legitimate cure for it was to be found in bleeding. No theory is so gratuitous or absurd but cases may be found which appear to justify it, and in this instance also examples were not wanting to illustrate at once the truth of the theory and its successful application. Longer experience, however, and a more correct conception of the disease, have long since condemned this method, which was almost as dangerous as it was irrational. If any additional argument against it were required, it would be found in the condition of the lungs after death. These organs, we have seen, are not {765} only not engorged, but they are empty of blood, and death is due not to asphyxia, but to apnoea, when it takes place in collapse.

If ever there existed any reason for the administration of an emetic--and ipecacuanha has generally been used at the commencement of an attack of cholera--it must be looked for, not in any clinical experience of its virtues, but simply in the deplorable routine that required the administration of an emetic at the commencement of nearly all acute diseases, so that, whatever else was prescribed, the lancet and an emetic seldom failed to be so. In this case also the proofs of the successful administration of ipecacuanha were not wanting, and one might be tempted to suppose, in view of the alleged facts in its favor, that it was useful by causing an evacuation of the material cause of the disease. Physicians were even to be found, of high station and character, who contended that cholera is a species of fever, and to be treated by an emeto-cathartic composed of tartar emetic and epsom salts. If the treatment had been efficient, the absurdity of the reasons for it might have been overlooked; but the one was as disastrous as the other was false. But, as usual, the facts had been misstated or misinterpreted, and emetics ceased to form a part of the systematic treatment of cholera. The idea which possessed those who advocated the use of evacuants was that there was either a poison to be eliminated from the blood or one to be expelled from the bowels. Apparently, the method was not efficacious, for the latest phase of it, the use of castor oil in acute stage of cholera, was of short duration.

When cholera first appeared in Europe the tendency naturally arose to follow in its treatment the example of the British practitioners in India. It then appeared that one of the most eminent among them, Annesley, gave a scruple of calomel, with two grains of opium, at the commencement of the attack, and repeated the dose in six or eight hours, and again upon the following day. In the decline of the disease he ordered scruple doses of calomel for the removal of a "cream-colored, thick, viscid, and tenacious matter exactly like old cream cheese, which glues the gut together and obstructs its passage." Three, four, and even five, scruples of calomel were usually taken before this effect was produced. When it is added that this practitioner held depletion to be the capital element of the treatment, and that he was equally lavish of his patient's blood and of his own drugs, we can only wonder that any subjects of his heroic method survived. It is now conceded by all enlightened physicians that mercurials in large or in ordinary doses are worse than worthless in epidemic cholera. In 1832, Dr. Ayre of Hull, Eng., proposed another method of using calomel, to which he adhered in treating this disease. It consisted in the administration of very small doses of calomel at short intervals, and with each of the first doses a few drops of laudanum. Such a method, if not carried too far, certainly has the merit of sparing the patient a great deal of the perturbative treatment against which we have, in the preceding pages, protested. But that was not at all the notion of its proposer. He claimed for it positive and active virtues. He stated, as the fundamental ground of his plan, that "the primary and leading object of the treatment must be to restore the secretion of the liver." He did not in the least doubt that he was able to do this by the administration of mercury--not, indeed, by a direct action upon the liver {766} itself, but indirectly and sympathetically through the stomach, and by the healthy and specific stimulus imparted to it, by which the due secretion of the bile is promoted. It is, indeed, difficult to conceive of any stimulus that calomel could impart to the stomach that would not be equally given by any other non-irritant and insoluble powder--subnitrate of bismuth, for example. Indeed, Ayre himself relates the case of a man who in an attack of cholera took during three days no less than five hundred and eighty grains of calomel, and recovered without any soreness of the mouth. But the plan which he finally elaborated was different. It was to give small doses of calomel repeatedly--in the premonitory stage one grain every half hour or hour for six or eight successive times, or, if this failed, every five or ten minutes--and in the stage of collapse one grain and a half every five minutes. In a few cases of extreme severity two grains of calomel were given every five minutes for an hour or two, and then the ordinary dose of one grain was resumed. But this was not all: with every dose of calomel was associated one, two, or three drops of laudanum, so that if these doses were repeated frequently the patient received a very efficient amount of the narcotic during the attack. Indeed, Ayre attributed to it the virtue of sustaining the vital powers under the depressing influence of the disease, and of removing or abating the cramps, as well as of detaining the calomel in the stomach. From the preceding account it follows that the treatment of cholera by small doses of calomel with laudanum is founded on an erroneous assumption of the mode of action of calomel, and that whatever efficacy the plan of treatment may possess may with more justice be attributed to the opium, whose effects we know, than to the calomel, whose action, so far as it is known at all, has no conceivable relation to the disease for which it was given. However this may be, if the results of Ayre's treatment are compared with those of other plans, it exhibits very little if any superiority. In the report of the cholera committee of the College of Physicians, London, made in 1853, we find the statement that in 725 unequivocal cases treated on Ayre's plan the deaths were 365, or about 50 per cent., and also the following commentary: "In general, no appreciable effects followed the administration of calomel, even after a large amount in small and frequently-repeated doses had been administered. For the most part, it was quickly evacuated by vomiting or purging, or, when retained for a longer period, was passed from the bowels unchanged. Salivation but very rarely occurred, and then only in the milder cases. We conclude that calomel was inert when administered in collapse, and that the cases of recovery following its employment at this period were due to the natural course of the disease, as they did not surpass the ordinary average obtained when the treatment consisted in the use of cold water only." It is of interest to compare the mortality of 50 per cent. above stated to have occurred under this sort of calomel treatment with the mortality noted at the London Hospital under various kinds of treatment, including the administration of calomel in doses varying "from five to ten and twenty grains every quarter, half, one hour, two, four, etc." Out of 509 cases, 281 were fatal, or 54.9 per cent.

Every disease in which exhaustion and coldness occur is sure to be {767} treated more or less actively with alcohol, but in the collapse of cholera, as in the cold stage of fevers, it is generally useless, and sometimes hurtful. We believe that the following protest of Macnamara is sustained by almost universal experience: "I would here enter an earnest protest against the use of brandy or any alcoholic stimulant in this [the second] stage of cholera. I believe these, both theoretically and practically, to be the cause of unmitigated evil. I simply, therefore, mention brandy, champagne, and the like in order to condemn their use most emphatically in cholera; according to my ideas and experience, it is almost impossible to hit on a more detrimental plan of treatment than that usually known as 'the stimulant' in this form of disease." It is true that apparent dissidents from this judgment may be found, like Playfair, a deputy inspector of hospitals in Bengal, who even circulated printed directions for the treatment of the first stage of the disease by means of brandy or strong rum, cayenne pepper, and laudanum, and had entire confidence in the efficacy of the method. Dr. Macpherson, inspector-general of hospitals, also, after comparing the results of a stimulant treatment with those of other methods, reaches the conclusion that the mortality-rate of cholera is affected neither by the moderate nor by the excessive use of alcohol.

Upon no other point in the treatment of cholera is the agreement of physicians more complete than upon the use of opiates in the early stage of the disease. The premonitory diarrhoea has always been treated by opiates alone or associated with astringents. Probably the best rule is to give from twenty to thirty drops of laudanum, or an equivalent dose of some other liquid preparation of opium, in a little brandy and water, and repeat the dose as often as a stool is voided. Opiates have also been generally employed to mitigate the symptoms of the fully-developed disease. But, like all other medicines introduced into the stomach or rectum, they are apt to be rejected, and even if they are not, their absorption is very doubtful, so that at the height of the attack they must be considered as nearly if not quite useless. When the vomiting and purging begin to subside and reaction is about to commence, small and repeated doses of opiates undoubtedly tend to lessen the evacuations; but great caution must be observed not to exceed the due degree of stimulation, lest a dangerous state of narcotism or collapse be induced. It might be supposed that the hypodermic use of morphia would be less open to objection than its administration by the stomach; but it is to be remembered that the suspension of gastric absorption is only a part of the similar condition affecting the whole circulatory system, and that the stagnation of the blood in the systemic veins prevents the absorption of medicines administered subcutaneously perhaps as completely as the state of the gastric blood-vessels interferes with their absorption from the stomach itself. In point of fact, the utility of opiates at any stage of cholera after the first is not easily determined, for nearly always they are associated with other medicines, and especially with astringents. In this disease, as in others that involve life, we are seldom at liberty to test the powers of individual medicines, but are bound to endeavor to save life by associating those which seem to be required for the purpose. Opiates, then, are nearly always given in conjunction with astringents or stimulants {768} during the first (or diarrhoeal) stage of the attack, but after vomiting is added to diarrhoea and a tendency to collapse is manifested they are at least useless.

The patient, it has already been said, should be disturbed as little as possible, and hence, if he becomes restless, and especially if he is rendered so by pain, he should be tranquilized by means of anæsthetics. Chloroform has generally been employed, and is best administered on the first accession of cramps. Much pain, with muscular fatigue and depression, is thus saved, and the inhalation of the medicine may be repeated as often as the pain threatens to return. No doubt other anæsthetics, and especially ether, would answer the same purpose.

Camphor has been claimed to be a valuable medicine in cholera, but there is no clinical evidence that it is so. Indeed, the only series of cases in which it was mainly depended upon gave a large mortality.