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other desperate cases. In one, hemorrhage of the newborn 30 c.c. were given, and six hours later 30 c.c., totaling for the first twenty-four hours 60 C.C. The second twenty-four hours the serum was given about the same way. After that the dose was diminished. The injections covered a period of five days, were twenty-three in number, and totaled 637 c.c. An extreme case of malnutrition of infancy was treated for twenty-one days, getting for the first week daily doses ranging from 20 c.c. to 78 c.c., the total for the twentyone days being 196 c.c.

Case "C. M.," a boy of ten years, mother hemorrhagic, and patient also bleeding excessively from slight wounds, received puncture wounds of mouth from his teeth. For five days he received calcium lactate internally, peroxid and adrenalin locally. Compresses of gelatin locally were changed q.2.h., and other recognized remedies were administered. On the fifth day, one ounce of serum was injected and the bleeding stopped within four hours,

never to return.

Case "I. G.," twenty-nine years of age. Epistaxis resisted all usual treat ment as just outlined and repeated packing of the nares. On the fourth day the red blood cells were down to 2,000,000 and the hemoglobin to 65%. Patient received one injection of serum. Bleeding stopped thirty-six hours later and did not return.

Such cases of bleeding are probably due to heredity plus delayed coagulation, the latter due in many cases to some poison either elaborated in the system or introduced from without. Bacteriemia or any grave sepsis or poisoning that effects the nutrition of the endothelial cells may produce this hemorrhagic diathesis. It is common

in post-operative cases with jaundice. Observers have claimed that the blood plates are diminished in hemophiliacs. This is difficult to decide as we have no very accurate way of estimating them. These blood plates are nuclei around which fibrin deposits, forming thrombi. These blood-plate-thrombi cause the pain of hemorrhagic points. As normal serum reduces the coagulation time of blood it might be supposed that such injections would increase the tendency of extravasated blood to clot in the tissue and to increase the attendant pain. This, however, is not so, for previous clotting in the tissues is absorbed after serum injections and no such clots are found. as a result of the injections.

Dr. Welch speculates that the beneficent action may be due to the nutritional effect of serum on the endothelium of the blood vessels. The serum supplies a prepared food, with molecules, receptors, etc. (according to Ehrlich's side-chain theory). The evidence is that the checking of hemorrhage in bacteriemias is not due to any punitive action toward the invading force, for there is no conclusive evidence that the serum has any effect in limiting the course of such disease, except, possibly, by its action on hemorrhage and nutrition. Cases of meningitis (without hemorrhage) due to the streptococcus and the pneumococcus have not responded to subcutaneous injections of serum.

Cases that succumb to infection may be placed in two groups: (1st) Those having in their blood sufficient antibodies but not sufficient complement; (2nd) those having sufficient complement but not sufficient antibodies. For the second group we could expect no benefit from normal human serum

injections, for there is no appreciable amount of antigen in such serum. This group should receive an antiserum. For the first group normal human serum should hold some benefit, for it is rich in complement. Serum should be used, not whole blood. The isolysins called forth by the injec

tion of red blood cells into the subject are produced by an effort that lowers. the general resistance of the body to invasions other than red blood cells. Toward the latter resistance is increased. These objections apply especially to the employment of the blood of a different species than the recipient.

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PRACTICAL THERAPEUTICS

UNDER CHARGE OF EDWARD E. CORNWALL, M.D.

Practical Points in the Treatment of Pneumonia

I know of no drug which is regularly called for in the treatment of pneumonia unless it be calcium chloride (or other calcium salt). The indications for calcium in this disease seem analogous to those for iron in chlorosis: there is reason to believe that calcium starvation exists in pneumonia. Mitchell says (Medical Record, August 9, 1911): "Every aspect of pneumonia bears testimony to the value of calcium. We know that the pneumococcus extracts calcium from the medium in which it grows. We know that it extracts calcium from the human culture medium, for calcium products are increased in the urine and feces during pneumonia. We know that convulsions are caused by calcium poverty, and we have no reason to deny that this calcium poverty is the cause of the convulsions in pneumonia. We know that a hyperacidity is a chemical invitation for alkalis, and we suspect that calcium is the bidden guest in pneumonia. We know that calcium is

absolutely required for the activation of lysins and opsonins, and all the phenomena of leucocytosis. We know that gray hepatization is impossible without the presence of calcium. We know that edema of the lungs and collapse of the heart occur only when the coagulation time of the blood is delayed." Mitchell recommends giving calcium chloride in ten grain doses every three hours during the disease.

Pneumonia occurring in adults is often attended with cardiac strain so severe as to necessitate more or less stimulation of the right heart, particularly in the latter part of the course of the disease; and the disease; and this stimulation should not be delayed too long. A sixtieth of a grain of strychnine three times a day, or every four hours, may be sufficient; or the strychnine may be required in as large dose as one-thirtieth of a grain every four hours, and tincture of strophanthus in doses of one and a half to three minims every four hours may be needed in addition. Most cases require no more stimula

tion than that mentioned, but some do, and additional stimulation may be provided by caffeine citrate in doses. of two or three grains every four hours, camphor in doses of two to five grains every four hours, aromatic spirits of ammonia in doses of onehalf to one dram every one or two hours, and digitalin in doses of one one-hundredth to one-fiftieth of a grain every four hours. Whisky in small or moderate amount should be given to patients who have been addicted to alcoholics.

In the beginning of the disease a small dose of calomel followed by a dose of jalap or castor oil is usually good treatment, and the bowels should be kept open during the disease, but at the time of the crisis the patient should not be disturbed even for bowel movements.

In the first twenty-four or thirtysix hours of the disease, if the patient can be seen so early, tincture of aconite in small doses may be useful; it is best given in half or quarter minim doses every hour.

To secure sleep, especially in the early days of the disease, morphine may be necessary.

The value of fresh air in the treatment of pneumonia has been abundantly proven, but not the value of exposure to excessive cold, especially at the time of and just after the crisis.

Hydrotherapeutic procedures to reduce the temperature are of questionable value in this disease.

In cases which show by a sudden fall in the systemic blood pressure, without notable signs of failure of the right heart, that vasomotor paralysis is impending, adrenalin and its congeners should be given to restore the tone of the dilated arteries; and normal sa

line solution should be given through the rectum and by hypodermoclysis.

THE TREATMENT OF INTERNAL

HEMORRHAGE

Only the pulmonary hemorrhage of phthisis and the intestinal hemorrhage occurring in typhoid fever are referred to here. In both these conditions quiet of both the nervous and muscular systems should be secured, which can be done most effectively by morphine. Calcium chloride, in ten or fifteen grain doses every four hours, can be given with a reasonable hope that it will increase the coagula

bility of the blood. External applications of cold over the region of the body which includes the bleeding part, may possibly help; in the case of intestinal hemorrhage they do so, if at all, probably more by quieting peristalsis than by reflexly inducing contraction of the bleeding artery; but their routine use is not to be recommended. In the case of intestinal hemorrhage all food should be stopped, or reduced to the blandest fluids, e.g., barley

water..

The arterio-constrictors, adrenalin, ergot, etc., are extensively employed in pulmonary and intestinal hemorrhage, but the reasons for their use in these conditions are not very good: even if the bleeding were from an artery instead of a vein, and these drugs could contract the bleeding vessel, they would also contract the arteries thruout the body and raise the general blood pressure, and thereby increase the hemorrhage.

The giving of astringents by mouth to check bleeding from a point in the intestines seems so irrational that I would not mention it even to condemn it, were it not that such treatment seems to have the sanction of usage by

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the origin and mode of transmission and the prevention of yellow fever (Medical Record, August 10, 1901). We have been tardy in bestowing upon Finlay the full meed of our praise.

Our illustration reveals the thought- number of valuable contributions to ful and kindly features of him who pointed out to Walter Reed and his associates, Agramonte, Carroll and Lazear, that which enabled them to demonstrate indisputably the transmission of yellow fever thru the agency of the mosquito. As the originator and prover of this theory of transmission he expedited, if he did not make possible, the undertaking at Panama and the abatement of Havana's curse. He was the forerunner of Gorgas, the inspirer of Reed and the rest of that splendid Army Commission. He still lives, and it is pleasant to look upon the features of the greatest of all, tho the least praised. Let us hasten to "place wreaths on the brows of the living." Reed himself, it will be remembered, said that "To Dr. C. J. Finlay of Havana must be given full credit, however, for the theory of the propagation of yellow fever by means of the mosquito, which he proposed in a paper read before the Royal Academy in that city on August 14, 1881. From that date to the present time, Finlay has made a

In the American Journal of the Medical Sciences (October, 1886) Finlay described in full detail the Stegomyia calopus. In July, 1881, he had "obtained a well marked attack of yellow fever following a bite by a contaminated mosquito. taminated mosquito." The fact of his successful attempts to produce experimental yellow fever by means of the mosquito's sting and his inference that these insects "are the habitual agents of its transmission" are set forth in the above article, as are a number of other related facts, all of which, taken together, give us everything upon which our tropical campaigns against yellow fever have been based.

Finlay published another article on the subject of mosquito transmission of yellow fever in 1894, in the Edinburgh Medical Journal. Still another appeared in the Medical Record (May

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