The Dog
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William Youatt >> The Dog
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24th. Nearly the same. V. S. [Symbol: ounce] vj. Bol. utheri.
26th. Decided amendment. She breathes with much less difficulty. Less
discharge both from eyes and nose. Bol. utheri.
Nov. 7th. Sent home well.
A singular and not uninstructive case came before me. A lady in the
country wrote to me to say, that her terrier was thin, dull, husking,
and perpetually trying to get something from the throat; that her coat
stared, and she frequently panted, I replied, that I apprehended she had
caught cold; and recommended bleeding to the extent of four ounces, a
grain each of calomel and emetic tartar to be given every fourth
morning, and a fever-ball, composed of digitalis, nitre, and tartrate of
antimony, on each intermediate day.
A few days after this I received another letter from her, saying, that
the dog was bled as ordered, and died on the following Thursday. That
another veterinary surgeon had been called in, who said that the first
one had punctured the 'vena cava' in the operation, and that the dog had
bled to death internally; and she wished to know my opinion. I replied,
that the charge proceeded from ignorance or malice, or both. That in one
sense he was right--the jugular, which the other had probably opened,
runs into the vena cava, and may, with some latitude, be considered a
superior branch of it; therefore, thus far the first man had punctured
the vena cava, which I had done many hundred times; but that the point
of union of the four principal veins that form the vena cava was too
securely seated in the upper part of the thorax for any lancet to reach
it. That the rupture of some small arterial vessel might have caused
this lingering death, but that the puncture of a vein would either have
been speedily fatal, or of no consequence; and that, probably, the
animal died of the disease which she had described.
SPASMODIC COUGH
is a troublesome disease to manage. Dogs, and especially those
considerably petted, are subject to frequent cough, requiring a material
difference in the treatment. Sometimes there is a husky cough, not to so
great a degree as in distemper, but followed by the same apparent effort
to get something from the throat, the same attempt to vomit, and the
ejection of mucus, frothy or adhesive, and occasionally discoloured with
bile. It proceeds from irritability or obstruction in some of the
air-passages, and oftenest of the superior ones. An emetic will clear
the fauces, or at least force out a portion of the adhesive matter which
is clogging the bronchial tubes.
A cough of this kind, and attended in its early stages by little fever,
seldom requires anything more for its cure than the exhibition of a few
gentle emetics, consisting of equal portions of calomel and emetic
tartar, given in doses varying from half a grain to one grain and a half
of each.
A harsh hollow cough is attended by more inflammatory action. The
depletive system must be adopted here. A loud and harsh cough will yield
only to the lancet and to purgatives, assisted by sedative medicines
composed of nitre, antimonial powder, and digitalis, or small doses of
syrup of poppies, or more minute doses of the hydrocyanic acid; this
last medicine, however, should be carefully watched, and only given
under surgical advice.
28th October, 1842. A spaniel was apparently well yesterday, but
towards evening a violent cough suddenly came on. It was harsh and
hollow, and terminated in retching. There was a discharge of water from
the eyes; but the nose was cool and moist. Give an emetic, and then two
grains of the James's powder.
29th The animal coughed almost the whole of the night. There was more
watery discharge from the eyes, which appeared to be red and impatient
of light; the nose continued cool, and the dog did not refuse his food.
An aperient ball was given; and twice afterwards in the day, the nitre,
antimonial powder, and digitalis.
30th. The cough is as frequent, but not very loud. Give a mixture of
syrup of poppies and prussic acid morning and night, and the ball as
yesterday.
31st. Nearly in the same state as yesterday, except that he is not so
thirsty, and does not eat so well. Give the mixture three times daily.
Nov. 1st. He had an emetic in the morning, which produced a large
quantity of phlegm, but the cough is no better. No evacuation during the
two last days. Give an aperient ball, and the mixture as before in the
evening.
The prussic acid has been fairly tried; it has not in the least
mitigated the cough, but begins to make the dog sick, and altogether to
destroy his appetite. Give three times in the day a mixture consisting
of two-thirds of a drachm of syrup of poppies, and one-third of syrup of
buckthorn. The sickness ceased, and the cough remained as before, I then
gave twice in the day half a grain of calomel, the same of opium, two
each of pulvis antimonialis and digitalis, and four grains of nitre,
morning and noon, with six grains of the Dover's powder at night. This
was continued on the 3d, 4th and 5th of November, when there were longer
intervals of rest, and the dog did not cough so harshly when the fit was
on him.
On the 6th, however, no medicine was given; but towards evening the dog
coughed as much as ever, and a decided mucous discharge commenced from
the nose and the eyes, with considerable snorting. An emetic was given,
and the balls resorted to as before.
'7th.' He appeared to be much relieved by the emetic. The cough was
better, the dog ate well, and had regained his usual spirits. The ball
as before.
'9th'. Slight tenesmus now appeared. It quickly became frequent and
violent. The dog strained very much; but the discharge was small in
quantity, and consisted of adhesive mucus. Give two drachms of castor
oil, and the fever ball with opium. The cough is worse, and the dog still
continues to strain, no blood, however, appearing.
'11th'. The opium and oil have had their desired effect, and the cough
is better.
'12th', Except the animal is kept under the influence of opium, the
cough is dreadfully troublesome. I have, however, obtained one point. I
have been permitted to subtract four ounces of blood; but blood had been
mingling with the expectorated mucus before I was permitted to have
recourse to the lancet.
'13th'. The dog is better, and we again have recourse to the fever
mixture, to which, on the '14th', I added a very small portion of the
carbonate of iron, for the dog was evidently getting weak. The sickness
has returned, and the cough is decidedly worse.
'16th'. Rub a small quantity of rheumatic embrocation, and tincture of
cantharides.
'17th.' The first application of the blister had not much effect; but
this morning it began to act. The dog ran about the house as cross as he
could be for more than an hour; there was considerable redness on the
throat and chest. The cough, however, was decidedly better.
'18th'. The cough is better. Again apply the embrocation.
'19th.' The cough and huskiness have returned. Employ an emetic, and
continue the embrocation.
'20th'. The cough is decidedly worse. Continue the embrocation, and give
the fever mixture.
'23d'. The embrocation and medicine have been daily used; but the cough
is as bad as ever. Balls of assafoetida, squills, and opium were had
recourse to.
25th. The second ball produced the most distressing sickness, but the
cough was evidently relieved. The assafoetida was discontinued.
'28th'. The cough, during the last two days, has been gradually getting
worse. It is more laborious and longer, and the intervals between it are
shorter. Give another emetic and continue the other medicine.
30th'. The effect of the emetic was temporary, and the cough is again
worse.
'Dec'. 2d'. Very little change.
5th'. The cough appears to be stationary. Again have recourse to the
antimony, digitalis, and nitre.
8th'. The cough is certainly better. Try once more the assafoetida. It
again produced sickness, but of a very mild character.
12th'. The assafoetida was again used used morning and night. The cough
continues evidently to abate.
14th'. The dog coughs very little, not more than half-a-dozen times in
the day. Notwithstanding the quantity of medicine that has been taken,
the appetite is excellent, and the spirits good.
16th'. The cough is still less frequent, but when it occurs it is
attended with retching.
19th'. The cough is daily getting better, and is not heard more than
three or four times in the four-and-twenty hours, and then very slight.
30th'. At length I can say that the cough has ceased. It is seldom that
so much trouble would have been taken with a dog. It is the neglect of
the medical attendance which is often the cause of death. Professor
Delafond, of Alfort, gives a most interesting and complete table of the
usual diagnostic symptoms of pleurisy and pneumonia.
PLEURISY.
'Commencement of the Inflammation'.
Shivering, usually accompanied by slight colicky pains, and followed by
general or partial sweating. Inspiration always short, unequal, and
interrupted; expiration full; air expired of the natural temperature.
Cough unfrequent, faint, short, and without expectoration. Artery full.
Pulse quick, small, and wiry.
'Auscultation'.
A respiratory murmur, feeble, or accompanied by a slight rubbing through
the whole extent of the chest, or in some parts only.
'Percussion'.
Slight, dead, grating sound. Distinct resonance through the whole of the
chest, and pain expressed when the sides are tapped or compressed.
'Terminations'
Delitescence. Cessation of pain; moderate temperature of the skin;
sometimes profuse general perspiration. Respiration less accelerated;
inspiration easier and deeper. Pulse fuller and softer. Breath of the
natural temperature. Return of the natural respiratory murmur and
resonance. The walls of the chest cease to exhibit increased
sensibility.
'Effusion, false Membranes'.
Inspiration more and more full.
'Auscultation and Percussion.
Complete absence of the respiratory murmur, with the crepitating
wheezing always at the bottom of the chest; sometimes a gurgling noise.
Vesicular respiration very strong in the upper region of the chest, or
in the sac opposite to the effusion.
'Continuance of the Effusion'.
Absence of the respiratory murmur gains the middle region of the chest,
following the level of the fluid. These symptoms may be found on only
one side; a circumstance of frequent occurrence in the dog, but rare in
other animals. The respiratory murmur increases in the superior region
of the chest, or on the side opposite to the effusion. Inspiration
becomes more and more prolonged. Breath always cold. Cough not existing,
or rarely, and always suppressed and interrupted. Exercise producing much
difficulty of respiration.
'Resolution or Re-absorption of the effused fluid, and Organization of
false Membrane, the consequence of Pleurisy'.
Slow but progressive reappearance of the respiratory murmur, and
disappearance of the sounds produced by the fluid. Diminution of the
force of the respiratory murmur in the superior part of the chest, or of
the lung opposite to the sac in which the effusion exists. Gradual
return of the respiratory murmur to the inferior part of the chest.
Inspiration less deep, and returning to its natural state.
'Chronic Pleurisy, with Hydrothorax'.
Inspiration short. Cough dry, sometimes with expectoration; frequent or
capricious; always absence of complete respiratory murmur in the
inferior portion of the chest. Sometimes the gurgling noise during
inspiration and expiration. Strong respiratory murmur in the superior
portion. In dogs these symptoms sometimes have existence only on one
side of the chest. The mucous membranes are infiltrated; serous
infiltration on the lower part of the chest and belly; sometimes of the
scrotum or the inferior extremities; generally of the fore legs. The
animal lies down frequently, and dies of suffocation.
PNEUMONIA.
'Commencement of the Inflammation'.
General shivering, rarely accompanied by colicky pains, followed by
partial sweats at the flanks and the inside of the thighs. Inspiration
full, expiration short. Air expired hot. Cough frequently followed by
slight discharge of red-coloured mucus. Artery full. Pulse accelerated,
strong, full, and soft.
'Auscultation'.
Absence of respiratory murmur in places where the lung is congested;
feebleness of that sound in the inflamed parts, with humid crepitating
wheezing. The respiratory murmur increased in the sound parts.
'Percussion'.
The dead grating sound confined to the inflamed parts. Distinct
resonance at the sound parts; increased sensibility of the walls of the
chest slight, or not existing at all.
'Terminations'.
Resolution. Temperature of the skin moderate. Sometimes profuse partial
sweats. Laborious respiration subsiding; inspiration less deep. Artery
less full. Pulse yielding. Breath less hot. Gradual and progressive
disappearance of the crepitating 'rale'. Slow return of the resonance.
'Red Hepatization'.
Respiration irregular and interrupted.
'Auscultation and Percussion.
Circumscribed absence of the respiratory murmur, in one point, or in
many distinct parts of the lung. The respiratory murmur increased in one
or more of the sound parts of the lung, or in the sound lung if one is
inflamed.
'Passage to a State of Gray Induration'.
The absence of respiratory murmur indicates extensive hepatization of
one lung; a circumstance, however, of rare occurrence. When the
induration is of both lungs, and equally so, the respiratory murmur and
the inspiration remain the same, except that they become irregular. The
cough dry or humid, frequent, and sometimes varying. Exercise
accompanied by difficulty of respiration, without dyspnoea.
'Resolution or Re-absorption of the Products of Inflammation of the
Parenchymatous Substance of the Lungs'.
Diminution of the force of the respiratory murmur in the sound parts.
Cessation of the crepitating wheezing. Slow return of the respiratory
murmur where it had ceased. Respiration ceases to be irregular or
interrupted, and returns slowly to its natural state, or it remains
interrupted. This indicates the passage from red to gray induration.
'Chronic Pneumonia--(Gray Induration.)'
Inspiration or expiration interrupted, cough unfrequent; suppressed;
rarely with expectoration; always interrupted. Complete absence of
respiratory murmur.
'Softening of the Induration, Ulcerations, Vomicae, &c.'
Mucous and wheezing; mucous rale in the bronchia; discharge from the
nostrils of purulent matter, white, gray, or black, and sometimes fetid.
Paleness of the mucous membranes. The animal seldom lies down, and never
long at a time. Death by suffocation, when the matter proceeding from
the vomicae, or abscesses, obstructs the bronchial passages, or by the
development of an acute inflammation engrafted upon the chronic one.
CHAPTER XII.
ANATOMY OF THE GULLET, STOMACH, AND INTESTINES: TETANUS; ENTERITIS;
PERITONITIS; COLIC; CALCULUS IN THE INTESTINES: INTUSSUSCEPTION;
DIARRHOEA; DYSENTERY; COSTIVENESS; DROPSY; THE LIVER; JAUNDICE; THE
SPLEEN AND PANCREAS; INFLAMMATION OF THE KIDNEY; CALCULUS; INFLAMMATION
OF THE BLADDER; RUPTURE OF THE BLADDER; WORMS: FISTULA IN THE ANUS.
The 'oesophagus', or gullet, of the dog, is constructed in nearly the
same manner as that of the horse. It consists of a similar muscular tube
passing down the neck and through the chest, and terminating in the
stomach, in which the process of digestion is commenced. The orifice by
which the gullet enters the stomach is termed the 'cardia', probably on
account of its neighbourhood to the heart or its sympathy with it. It is
constantly closed, except when the food is passing through it into the
stomach.
The 'stomach' has three coats: the outermost, which is the common
covering of all the intestines, called the peritoneum; the second or
muscular coat, consisting of two layers of fibres, by which a constant
motion is communicated to the stomach, mingling the food, and preparing
it for digestion; and the mucous or villous, where the work of digestion
properly commences, the mouths of numerous little vessels opening upon
it, which exude the gastric juice, to mix with the food already
softened, and to convert it into a fluid called the chyme. It is a
simpler apparatus than in the horse or in cattle. It is occasionally the
primary seat of inflammation: and it almost invariably sympathises with
the affections of the other intestines.
The successive contractions of each portion of the stomach, expose by
turns every portion of the alimentary mass to the influence of the
gastric juice, and each is gradually discharged into the alimentary
canal.
As the chyme is formed, it passes out of the other orifice of the
stomach, and enters the first intestine or 'duodenum'.
It may be naturally supposed that this process will occasionally be
interrupted by a variety of circumstances. Inflammation of the stomach
of the dog is very difficult to deal with. It is produced by numerous
different causes. There is great and long-continued sickness; even the
most harmless medicine is not retained on the stomach. The thirst is
excessive; there are evident indications of excessive pain, expressed by
the countenance and by groans: there is a singular disposition in the
animal to hide himself from all observation; an indication that should
never be neglected, nor the frequent change from heat to cold, and from
cold to heat.
The mode of treatment is simple, although too often inefficient. The
lancet must be immediately resorted to, and the bleeding continued until
the animal seems about to fall; and to this should quickly succeed
repeated injections. Two or three drops of the croton oil should be
injected twice or thrice in the day, until the bowels are thoroughly
opened. The animal will be considerably better, or the disease cured, in
the course of a couple of days.
There is a singular aptitude in the stomach of the dog to eject a
portion of its contents; but, almost immediately afterwards, the food,
or a portion if not the whole of it, is swallowed again. This is a
matter of daily occurrence. There is a coarse rough grass, the
'cynosurus cristatus', or crested dog's-tail. It is inferior for the
purposes of hay, but is admirably suited for permanent pastures. It
remains green after most other grasses are burnt by a continuance of dry
weather. The dog, if it be in his power, has frequent recourse to it,
especially if he lives mostly in a town. The dry and stimulating food,
which generally falls to his share, produces an irritation of his
stomach, from which lie is glad to free himself; and for this purpose he
has recourse to the sharp leaves of the cynosurus. They irritate the
lining membrane of the stomach and intestines, and cause a portion of
the food to be occasionally evacuated; acting either as an emetic or a
purgative, or both. They seem to be designed by nature to be substituted
for the calomel and tartar emetic, and other drugs, which are far too
often introduced.
An interesting case of the retention of a sharp instrument in the
stomach is related by Mr. Kent of Bristol.
On the 23d of February, Mr. Harford, residing in Bristol, when feeding a
pointer-dog, happened to let the fork tumble with the flesh, and the dog
swallowed them both. On the following morning, Mr. Kent was desired to
see the animal; and, although he could feel the projection of the fork
outwardly, which convinced him that the dog had in reality swallowed it,
yet, as he appeared well, and exhibited no particular symptoms of pain
or fever, Mr. Kent gave it as his opinion that there was a possibility
that he might survive the danger, and the animal was sent to him, in
order to be more immediately under his care. The treatment he adopted
was, to feed him on cow's liver, with a view to keep the stomach
distended and the bowels open; and he gave him three times a day half a
pint of water, with sufficient sulphuric acid to make it rather strongly
sour to the human tongue, with the intention of assisting the stomach in
dissolving the iron.
On the following Sunday, the skin, at the projecting point, began to
exhibit some indication of ulceration; and on Monday a prong of the fork
might be touched with the point of the finger, when pressed on the
ulcer. Mr. Kent then determined on making an effort to extract the fork
on the following morning, which he accordingly did, and with but little
difficulty, assisted by a medical friend of the owner. The dog was still
fed on cow's liver; his appetite remained good, and with very little
medical treatment the external wound healed. The animal improved rapidly
in flesh during the whole time. He left the infirmary in perfect health,
and remained so, with one inconvenience only, a very bad cough, and his
being obliged to lie at length, being unable to coil himself up in his
usual way.
The fork was a three-pronged one, six and a half inches long. The
handle, which was of ivory, was digested: it was quite gone; and either
the gastric fluid or the acid, or both conjointly, had made a very
apparent impression on the iron.
Dogs occasionally swallow various strange and unnatural substances.
Considerable quantities of hair are sometimes accumulated in the
stomach. Half-masticated pieces of straw are ejected. Straw mingled with
dung is a too convincing proof of rabies. Dog-grass is found irritating
the stomach, or in too great quantities to be ejected, while collections
of earth and dung sometimes threaten suffocation. Pieces of money are
occasionally found, and lead, and sponge. Various species of polypus
irritate the coats of the stomach. Portions of chalk, or stone, or
condensed matters, adhere to each other, and masses of strange
consistence and form are collected. The size which they assume increases
more and more. M. Galy relates an extraordinary account of a dog. It was
about three years old when a tumour began to be perceived in the flank.
Some sharp-pointed substance was felt; the veterinary surgeon cut down
upon it, and a piece of iron, six inches in length, was drawn out.
The following fact was more extraordinary: it is related by M. Noiret. A
hound swallowed a bone, which rested in the superior part of the
oesophagus, behind the pharynx, and caused the most violent efforts to
get rid of it. The only means by which it could be made to descend into
the stomach was by pushing it with the handle of a fork, which, escaping
from the hand of the operator, followed the bone into the stomach. Two
months afterwards, on examining the stomach, the fork was plainly felt
lying in a longitudinal direction, parallel with the position of the
body; the owner of the dog wishing mechanically to accelerate the
expulsion of this body, endeavoured to push it backwards with his hands.
When it was drawn as far back as possible, he inserted two fingers into
the anus, and succeeded in getting hold of the handle, which he drew out
nearly an inch; but, in order to be enabled fully to effect his object,
it was necessary to make an incision into the rectum, and free the
substance from every obstacle that could retain it. This he did not
venture to do, and he was therefore compelled to allow the fork to pass
back into its former position.
About three months after the accident, M. Noiret made an incision, three
inches from above to below, and the same from the front backwards. He
also made an incision through the muscular tissue. Having arrived at the
peritoneum, he made another incision, through which he drew from the
abdomen a part of the floating portion of the large intestines, and
introduced his fingers into the abdominal cavity. He seized the handle
of the fork, which was among the viscera, and free about half-way down,
and drew it carefully towards the opening made in the flank. The other
half of the fork was found to be closely enveloped by the origin of the
mesocolon, which was red, hard, and inflamed. The operator freed it by
cutting through the tissues which held the fork, and then drew it easily
out. The animal was submitted to a proper course of treatment, and in
three weeks afterwards was perfectly cured.
The food, having been converted into chyme by the digestive power of the
stomach, soon undergoes another and very important change. It, or a
portion of it, is converted into chyle. It is mixed with the bile and a
secretion from the pancreas in the duodenum. The white thick liquid is
separated, and contains the nutritive part of the food, and a yellow
pulpy substance is gradually changed into excrement. As these substances
pass on, the separation between them becomes more and more complete. The
chyle is gradually taken up by the lacteals, and the excrement alone
remains.
The next of the small intestines is the 'jejunum', so called from its
being generally empty. It is smaller in bulk than the duodenum, and the
chyme passes rapidly through it.
Next in the list is the 'ileum'; but it is difficult to say where the
jejunum terminates and the ileum commences, except that the latter is
usually one-fifth longer than the former.
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