Diseases of cattle, sheep, goats and swineMoussu, G. (Gustave)
Science
Diseases of cattle, sheep, goats and swine
Moussu, G. (Gustave)
Veterinary medicine
(_b_) In the second method the animal is fixed in a different position,
the head being held about 10 to 12 inches from the ground, with the neck
lowered and inclined towards the earth. As in this position the
œsophagus is longitudinally relaxed, and can be dilated to its fullest
extent transversely, the difficulty of displacing the obstacle should be
very much less. In this case the operator always stands on the left side
of the neck, but with his back towards the animal’s body. The right arm
is passed around the neck and the right hand pressed into the right
jugular furrow, the left hand being similarly engaged in the left
jugular furrow. The method of employing the fingers is identical, or
instead of the fingers the thumbs may be used.
[Illustration: $1]
When the obstructing object has been lifted as far as the pharynx it has
a tendency to fall out of the mouth, and if it fail to do so it can be
fixed in position and removed as in the preceding case.
II. =Extraction.= These methods are applicable to cases where the
foreign body has become fixed in the cervical region, but more
especially to obstructions in the intra-thoracic part of the œsophagus.
In the majority of cases they are dangerous, and may lead to pinching,
rupture, or perforation of the œsophageal mucous membrane. They should
therefore be regarded as exceptional measures. Theoretically, the
instruments described are perfect, but practically they do not secure
the results anticipated, because one can never prevent displacement,
wrinkling, and involution of the œsophageal mucous membrane.
The forceps probang has the drawback of seldom grasping smooth foreign
bodies with sufficient firmness to permit of their extraction.
The corkscrew sound exposes one to the great danger of completely
piercing the œsophagus, because it has to be managed blindly, and
because one never knows at what depth the corkscrew portion should be
protruded in order to obtain a proper hold of a foreign body.
III. =Passage of the probang.= When taxis fails or is inapplicable, we
are forced to attempt thrusting the foreign body onwards. The method is
much safer than the preceding, but, nevertheless, demands great tact,
prudence, and gentleness. Suitable œsophageal sounds are made with
cupped extremities, though in cases of emergency an instrument can often
be successfully improvised from a cane, whip handle, or flexible stick,
about 4½ to 5 feet in length, securely wrapped at one end with cloth or
tow and freely coated with some greasy material such as lard, vaseline,
or oil.
The end of the sound having arrived in contact with the obstacle, the
operator exercises moderate but permanent pressure. The obstacle may not
move immediately, because of spasm of the œsophagus, which grasps it. It
is therefore necessary to wait and to take advantage of a moment when
the resistance is less, and even then the obstacle may not move.
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