Array Dinks - The Dog

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The liver is generally involved. After the termination of a fatal case, this gland is found either soft or more brittle than it ought to be, else it is discovered much enlarged. I never saw it of less than its natural size. Generally it is discolored, mostly of a pale tint; which sometimes exists all over the organ, though the pendulous edges of the lobes are very generally seen of the bright red, suggestive of inflammation. The gall-bladder is always distended with a thin dark-green fluid or impure bile; and a large quantity of the same secretion, but of greater consistency, is distributed over the lining membrane of the anterior intestines. The liver obviously is the cause of the yellow distemper, which is no more than jaundice added to the original and pre-existing disease. Yellow distemper is by writers treated of as a distinct disorder, but I have not yet met with it in that form. When it has come under my notice, it has been no more than one of the many complications which the symptoms are liable to assume. The dog has been ill before his skin became discolored; but the eyes not exhibiting that ordinary discharge which denotes the true character of the affection under which he labored, the distemper was not detected.

Everything concerning distemper is by the generality of the public misunderstood. Most people imagine a dog can have the distemper but once in its life; whereas I had a patient that underwent three distinct attacks in one autumn, that of 1849. The majority of persons who profess an intimate knowledge of the dog will tell you distemper is a disorder peculiar to the young; whereas I know of no age that is exempt from its attack. I have known dogs, high-bred favorites, to be left with men selected because of their supposed familiarity with dog diseases; and these very men have brought to me the animals in the fits which are the wind-up of distemper, yet notwithstanding have been ignorant that their charges had any disease whatever. All the stages and symptoms of ordinary distemper may appear and depart unnoticed; but it is widely different with yellow distemper, for when the yellowness appears, it is so marked that no description of a peculiar symptom need be inserted, since it cannot be overlooked or mistaken. It is attended with excessive debility, and, unless properly combated, is rapidly fatal.

The stomach and intestines are always involved; I have never known a case in which either escaped. The affection of the first is generally shown by sickness during the earliest stage; when also the derangement of the last is denoted by either costiveness or relaxation, the bowels never being perfectly regular; towards the latter stages, or about the third or fourth week, the appetite sometimes becomes enormous; the craving for food is then unnatural, and is so intense that no quantity can appease the hunger. The animal will eat anything; dry bread is taken with avidity, and stones, cinders, straw, and every species of filth are eaten with apparent relish. Such, however, is not always the case, since it is not unusual for the appetite entirely to fail. In either instance the dog rapidly wastes; the flesh seems to melt as it were away, and the change produced by a few days is startling; from having been fat, a thinness which exposes every bone is witnessed in a shorter time than would be supposed possible. At this period vomiting may come on; but when the animal is morbidly ravenous, the stomach does not generally reject its contents. After death I have found it loaded with the most irritating substances, and always acutely inflamed; but no sickness in any instance of this kind has been observed. Vomiting is most generally absent, but the protruded and reddened appearance of the anus will give a clue to the actual condition of the alimentary tube. The stomach is inflamed, not throughout, but in various parts which are in different stages of disease. The pyloric orifice is always more affected than the cardiac; the duodenum, jejunum, and ileum, are inflamed; the cæcum is enlarged, inflamed, and generally impacted. The rectum, however, suffers most severely; it is much reddened and thickened, often to an extraordinary degree. I have known blood to be exuded from the surface of this bowel in such quantities as to destroy the life from actual hemorrhage. In one case, however, a spaniel vomited more than half-a-pint of blood previous to its death, which took place two hours afterwards. A small quantity of blood is ordinarily passed with the fæces toward the latter stage; but in several cases a large amount of pure blood, partly coagulated and unmingled with any fæcal matter, has flowed from the body in a continued stream, to which there will be cessation only as death approaches. The possibility of this occurring will give the reader some idea of the extent and degree in which the bowels are or may be diseased; the symptoms, nevertheless, are not such as would suggest the danger which may be shortly violently exemplified. Irregularity of the intestines may be remarked; but it is not so characterised as to force itself upon the attention. The belly during distemper mostly appears tucked up and small; the intestines, even when costiveness exists, are seldom loaded, but all except the rectum may feel empty. The animal is always bound when the bowels are acutely attacked. The first indication we get of this is often colic. The cries are high and yet full at first; but they only occur at periods, between which the dog seems easy and inclined to sleep; gradually the exclamations become more sharp and short, a quantity of dark-coloured fæces are voided, and relief is for a time experienced; the cries, however, return and become continuous; diarrhœa sets in; the excretions become more and more liquid, by degrees mixed with blood, and of a lighter color. Whenever they are discharged, pain is expressed; but as the animal sinks the cries grow less frequent, till at last the excrements pass involuntarily, and death soon takes place.

The cries, however, are not heard in every instance even of this kind, and the abdomen is not generally sensitive to pressure. When the belly is handled, the dog, by contracting the muscles covering the parts, may denote some small degree of resistance; but I have never known it to struggle during the operation. The curving of the spine, the occasional looks towards the seat of agony, and the efforts made to press or draw the belly upon the ground, will indicate the inflammatory character and the locality of the disease. The pulse does not materially aid the judgment; it becomes quicker and more sharp, but hardly to such an extent that dependence can be placed on its indications. The discharges often cease when the disease, in an acute form, becomes concentrated upon the contents of the abdomen; but the nose is almost always hot and harsh, though in a few cases I have known the part remain cold and moist even to the last. As the close draws near, a very peculiar smell, not absolutely powerful, but more sickly than offensive, is emitted. This odor is consequent upon the fæces, and when it is detected the animal seldom or never survives.

The brain, both Blaine and Youatt speak of as subject to inflammation during the latter stage of distemper. As diseases are peculiarly liable to change, and the appearances assumed at different times are by no means uniform, I may not say those estimable writers never beheld it in such a state; but I am certain I have never seen it in a similar condition; I have found it congested, but far oftener have I discovered it perfectly healthy. One of its coverings (the dura mater) has exhibited a few spots of congestion, but these have been small, each not larger than the head of a moderate sized pin, and in number about ten or twelve; generally they are situated towards the anterior of the cranium (on either side or falx), and near to the crista galli.

The bones forming the roof of the skull have, however, been highly vascular – loaded with dark blood – so that if dried they become of almost a black hue; and without disputing the accuracy of either of the authorities I have mentioned, these appearances to my mind account more satisfactorily for symptoms which no one asserts ever border upon phrenitis. The brain seems to me to be only sympathetically affected, not absolutely involved in this disease. When this is threatened, there is generally some notice given before the fits, succeeded by stupor, are displayed. The eye will sometimes brighten, and the discharge from the nose will cease. This, however, is by no means constant; as it is not rare for both to continue, or even to become more copious; but if one only should remain, the nose is certain to be the part whence the deflexion will issue. No positive dependence, therefore, can be placed upon the discharges from the eye or nose. The eye, nevertheless, is certain to denote that which is on the eve of happening. The pupil may be small; and when it is so, its decrease of size will be marked, and it will have little disposition to enlarge. This, however, is rarely witnessed. Generally the pupil is much enlarged, so much as to conceal the iris, and alter the character of the organ. The eye is moreover retracted, and the dog has a very peculiar expression of mingled pain and stupidity. If the hand be placed upon the head, it will be sensibly hot. No matter how thick the coat may be, the heat will be apparent, and the carotid arteries will sensibly throb. The coat feels dry and is warm, although the animal may be trembling to such a degree as prevents the pulse being counted. Yet the dog seems lively; it is active now, though perhaps a little while ago it was dull; every trivial circumstance now attracts its notice. The appetite is generally ravenous. The dog which only the day before was disinclined to feed, is suddenly disposed to eat more than it ever was known to consume; and it will gnaw and swallow the hardest wood for want of better provender. The amended appetite is mostly one of the symptoms, but it is not invariably witnessed; for occasionally increased activity, and the strange appearance of the eye, are all that indicate the approach of fits. It will not be long, however, before something shall be added which is more definite in its meaning. The dog which was running about suddenly stands still, and begins to smack its lips and champ its jaw. It keeps stationary while doing this, and continues so until a quantity of froth and thick saliva falls from the mouth, drops upon the ground, and then the action ceases. The animal looks around with a vacant stare, evidently not conscious where it is, and starts away, hitting itself perhaps against anything which may oppose its progress. If caught it struggles to get loose, and may even bite the hand which, when conscious, it would perish to defend. Almost immediately, however, it regains its faculties, and then seems quite as well as it appeared to be before the attack came on. It may continue subject to be thus seized for several days; or soon after the first attack, fits or convulsions may start up. During the champing colic may set in, which will only yield when the fits are established. The duration of the champing is not regular; it may be only for a few moments, or for several minutes. The attacks may be no more than one or two in the day, or twenty may occur in a single hour. Generally they remain about three days, but here also there is no rule. I have known them to be present for a week, and also to exist only for a few hours. In these latter cases the condition of the dog is generally not understood. It is taken out for a long walk, or it is indulged with a hearty meal; and in the middle of the one, or shortly after the other, it begins to champ, utters a loud sharp cry, which is suddenly cut short as if the animal was choked. The eyes glare, the mouth is open, and before perfect insensibility ensues, the dog bites at every object near it, then falls down convulsed, the limbs stiffen, the head is drawn back or twisted to one side, the urine and dung are voided; and a slate of unconsciousness, which may cease in a few minutes, or continue for hours, during which the body is in contortions, and the saliva flows freely from the mouth, stretches the poor brute upon the earth. When this is over, the dog recovers as from a trance, being always disposed to ramble, and should its strength permit, will start away at its utmost speed. There is neither to the number nor duration of these fits any limit; they may be few or frequent, and long or short. The second may end the life; or every five minutes, nay oftener, they may occur, and the animal survive for days. Any excitement will bring them on, and the passage of the fæces invariably is accompanied by an attack. Diarrhœa always begins when they commence, and the dog soon loses strength, and lies upon its side unconscious and incapable of motion; the pulse is not to be felt, and gradually without a struggle it expires. Let no man, however, be hasty in saying positively when death has taken place. Often has the life seemed gone, for the heart has been still; but minutes afterwards the animal has gasped, and then began to breathe once more. Death, however, comes at last, for if the dog sinks to such a state, I have never known it to revive.

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