is applied to wounds, _incised_ and _lacerated_, promoting he...
Some years back my 70 years old mother came from the family ...
Bathing The Feet
This apparently simple treatment, if the best results are desi...
In 1845-46 there was an epidemic in Dresden, a city of 100,00...
If you would cure thoroughly, you must first make sure that th...
Direct Laryngoscopy In Diseases Of The Larynx
The diagnosis of laryngeal disease in young children, impossi...
The cough is a spasmodic action of nerves which are otherwise ...
Knee Swelling Of Or Pain In
For ordinary slight injuries, complete rest, and rubbing with ...
Acute Cardiac Symptoms Acute Heart Attack
It is not proposed here to describe the condition of sudden...
Where this is recommended the cold-drawn oil is meant, not the...
Glands Of Bowels
See Bowels. ...
See Erysipelas. ...
The Effect Of Drugs On Blood Pressure
Free catharsis is a well established and valuable method of ...
The surface of the body should be kept clean, as far as possi...
Diabetes A Kidney Disease
This disease occurs in two forms--diabetes insipidus and diab...
Treatment Of Acute And Subacute Inflammation And Ulceration Of The Esophagus
Bismuth subnitrate in doses of about one gramme, given dry o...
Blood Pressure And Insurance
An epitome of the consensus of opinion of the risk of accepti...
When the nervous system is in a certain state, all impressions...
Piles - Hemorrhoids
One important matter in all cases of habitual piles, is, to k...
Breast Swelling In
A blow on the breast, or the drain of nursing a child, along w...
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