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WHEN we are tolerant as a matter of course, the nervous syste...
We feel urged, in first considering this sore and very common ...
Errors To Avoid In Suspected Foreign Body Cases
1. Do not reach for the foreign body with the fingers, lest...
Where the juices and organs of the body are thoroughly healthy,...
Treat exactly as in acute diarrh[oe]a, except that P. P. shou...
The immediate conditions to meet are the rapid fluttering hea...
Arterial hypertension may be divided into stages. In the fi...
Rules For Insertion Of The Catheter For Insufflation Anesthesia
1. The patient should be fully under the anesthetic by the ...
See Narcotics. ...
The Care Of The Heart-pump
The Effect of Work upon the Heart. Whatever else in this body...
Rubbing Sheet Substitute For The Half-bath
It cannot be difficult to procure a wash-tub. Should you be s...
Foreign bodies that have penetrated the chest wall and lodge...
Pulmonary Insufficiency Pulmonary Regurgitation
If this rare condition occurs, it is probably congenital. A ...
The application of the lunar caustic in recent burns or scald...
A teaspoonful of lemon juice (freshly expressed), along with h...
Curing With Enemas
It is not wise to continue regular colonics or enemas once a ...
Suppression Of The Menses Amenorrhoea
For sudden suppression from taking cold, as by wetting the ...
is valuable as a _palliative_ upon cancerous tumors. As a _cu...
Quacks And Quackery
Quackery and the love of being quacked, are in human nat...
Treatment Of Other Eruptive Fevers
The treatment as prescribed for scarlatina in this pamphlet, ...
Source: Disturbances Of The Heart
Aortic narrowing or stenosis is a frequent occurrence in the aged
and in arteriosclerosis when the aorta is involved. It is not a
frequent single lesion in the young. If it occurs in children or
young adults, it is likely to be combined with aortic regurgitation,
meaning that the valve hay been seriously injured by an
The first effect of this narrowing is to cause hypertrophy of the
left ventricle, and as long as this ventricle is able to force the
blood through the narrowed opening at the aortic valve, the general
circulation is perfect. Nature again steps in to cause such a heart
to heat deliberately, allowing time for the contracting ventricle to
force the blood through the narrowed orifice. The blood pressure may
be sufficient, or even increased if arteriosclerosis is present,
although the rise of the sphygmograph tracing is not so high as
normal. If the pressure in the aorta is sufficient from the amount
of blood forced into it, the coronary arteries receive enough blood
to keep up the nutrition of the heart muscle. Sooner or later,
however, the left ventricle will become weakened, especially when
there is arteriosclerosis or other hypertension, and chronic
endocarditis and fatty degeneration result. If the left ventricle
becomes sufficiently weakened or dilated, the same damming back of
the blood through the lungs and right heart occurs, and more or less
serious signs of broken compensation develop. The main danger,
however, with a heart with this lesion, occurring coincidently with
arteriosclerosis, is a progressive chronic myocarditis.
Next: Other Lesions
Previous: Physics Of Aortic Lesions