|VIEW THE MOBILE VERSION of www.homemedicine.ca|| Informational|
Medical ArticlesWorking Restfully
ONCE met a man who had to do an important piece of sc...
Take B D current, moderate force. Treat exactly as in spermat...
Chronic Back Pain
Barry was a carpenter who couldn't afford to lose work becaus...
Active and persistent antiluetic medication must precede and ...
Infections And How To Avoid Them
What Causes Disease. The commonest and most dangerous acciden...
The Expletive Method Blood-letting
has been advocated by some of the best authorities, and there...
Almost hopeless. Emetic; artificial respiration. ...
The application of the lunar caustic in recent burns or scald...
Inspection of the hypopharynx and upper esophagus is readily...
Bandage Four-ply Flannel
The four-ply flannel bandage is simply what its name implies--...
Compression Stenosis Of The Trachea And Bronchi
Compression of the trachea is most commonly caused by goiter...
Practice On The Dog
Having mastered the technic of introduction on the cadaver a...
is small pox modified by vaccination. It is to be treated as ...
Educate your eye and your fingers. Be sure you are right...
The Surgical Dissection Of The First Second Third And Fourth Layers Of The Inguinal Region In Connexion With Those Of The Thigh
The common integument or first layer of the inguino-femoral r...
See Child-bearing. ...
Gangrene Of The Lung
Pulmonary gangrene has been followed by recovery after the e...
Where Our Drinking Water Comes From
Water Contained in our Food is Pure. Seeing that five-sixths ...
Pain Severe In Limbs
This is often not due to any trouble in the joint itself, but ...
See Breath, and the Heart. ...
Auricular Fibrillation Diagnosis
Source: Disturbances Of The Heart
If the pulse is intermittent and there is apparently a heart block.
Stokes-Adams disease should be considered as possibly present, and
digitalis would be contraindicated and would do harm.
A scientific indication as to whether a heart is disturbed through
the action of the vagi or whether the disturbance is due to muscle
degeneration may be obtained by the administration of atropin.
Talley [Footnote: Talley, James: Am. Jour. Med. Sc., October, 1912.]
of Philadelphia shows the diagnostic value of this drug. It is a
familiar physiologic fact that stimulation of the vagi slows the
heart or even stops it. Stimulation of these nerves by the electric
current, however, does not destroy the irritability of the heart;
indeed, the heart may act by local stimulation after it has been
stopped by pneumogastric stimulation. It is also a well known fact
that anything which inhibits or removes vagus control of the heart
allows the heart to become more rapid, since these nerves act as a
governor to the heart's contractions. Under the influence of atropin
the heart rate is increased by paralysis of the vagi. Talley states
that a hypodermic injection of from 1/50 to 1/25 grain of atropin
produces the same paralytic and rapid heart effect in man. He
advises the use of 1/25 grain of atropin in robust males, and 1/50
grain in females and in less robust males, and he has seen no
serious trouble occur from such injections. The throat is of course
dry, and the eyesight interfered with for a day or more, but Talley
has not seen even insomnia occur, to say nothing of nervous
excitation or delirium. Theoretically, however, before such atropin
dosage, an idiosyncrasy against belladonna should be determined.
The value of such an injection rests on the fact that atropin thus
injected will increase the normal heart from thirty to forty beats a
minute, and Talley believes that if the heart beat is increased only
twenty or less, if the patient has not been suffering from an
exhausting disease, it shows "a degenerative process in the cardiac
tissue which makes the outlook for improvement under treatment
unpromising." He also believes that when the heart in auricular
fibrillation is increased the normal amount or more than normal, the
prognosis is good. He still further advises in auricular
fibrillation an injection of atropin before digitalis has been
administered, and another after digitalis is thoroughly acting.
Comparison of the findings after these two injections will determine
which factor, vagal or cardiac tissue, is the greater in the
condition present. The patients with a large cardiac factor are the
ones who may be more improved by the digitalis treatment than those
in whom the fibrillation is caused by vagus disturbance.
Next: Auricular Fibrillation Prognosis
Previous: Auricular Fibrillation Pathology