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Medical ArticlesInflammation Of The Bowels - EnteritisThis consists in inflammation of the muscular and peritoneal ... Tetanus This is substantially the same thing as trismus, except that ... Plate Iv A, Gastroscopic view of a gastrojejunostomy opening drawn pat... Assimilation Is the process whereby the digested food is carried into the b... Ulcers Case Xxvii Mrs. Wakefield, aged 36, had an extensive ulceration with exc... From The Hygienic Dictionary Diagnosis. [1] In the United States, making a diagnosis impli... Alkalis (eg Ammonia Soda Or Potash) Give dilute vinegar, followed by white of egg. ... Renal Calculi Gravel In The Kidneys Take the A C current, of considerable force. Place N. P. low ... Early Symptoms Of Irritating Foreign Body Such As A Peanut Kernel In The Bronchus 1. Initial laryngeal spasm is almost invariably present wit... Nursing Over Few vital processes are more remarkable than that by which foo... Nervousness This frequent and distressing trouble is to be traced to a sta... Extraction Of Open Safety-pins From The Esophagus An open safety pin with the point down offers no particular ... Infections And How To Avoid Them What Causes Disease. The commonest and most dangerous acciden... Paracelsus THEOPHRASTUS BOMBASTUS VON HOHENHEIM, commonly known as Parac... Asepsis Strict aseptic technic must be observed in all endoscopic pr... Cramp In The Limbs The treatment of this is to apply cold cloths to the roots of ... Exercise Where this is advised medically, it is often taken in a manner... Chlorosis Green Sickness This is a disease mostly or entirely peculiar to young women ... Hypotension A low systolic pressure and a low diastolic pressure may no... Ears Running In this trouble there is indicated a failure somewhere of the ... |
Coronary SclerosisCategory: Uncategorized Source: Disturbances Of The Heart While disease of the coronary arteries may occur without general arteriosclerosis, it is so frequently associated with it that it is necessary to give a brief description of the general disease. Arteriosclerosis or arteriocapillary fibrosis is really a physiologic process naturally accompanying old age, of which it is a part or the cause, and it should be considered a pathologic condition only when it occurs prematurely. It may, however, occur at almost any age after 30, and is beginning to be frequent between 40 and 50. In rare instances it may occur between 20 and 30, and even in childhood and youth. It is much more frequent in men than in women. Its most common cause is hypertension; in fact, hypertension generally precedes it. The most frequent cause of hypertension today is the strenuousness of life, the next most frequent cause being the toxins circulating in the blood from overeating, overdrinking, overuse of tobacco and the overuse of caffein in the form of coffee, tea or caffein drinks. Another common cause of arteriosclerosis occurring too early is the occurrence of some serious infection in a person, typhoid fever and sepsis being most frequent. Syphilis is a frequent cause, especially of that form of arteriosclerosis which shows the greatest amount of disease in the aorta. Mercury used in the treatment of syphilis is more liable, however, than syphilis to be the cause of arteriosclerosis. Although this drug, even with the arsenic injections now in vogue, is necessary for the cure of syphilis, it probably tends to raise the blood pressure by irritating the kidneys and by diminishing the thyroid secretion, both of these occurrences predisposing to arteriosclerosis. From the fact that lead poisoning causes an increased blood pressure, lead is a probable cause of arteriosclerosis. With the greater knowledge of the danger of poisoning possessed by those who work in lead, chronic lead poisoning is becoming rare, as evidenced by the lessening frequency of wrist drop and lead colic. Chronic nephritis is often a coincident disease, but the causes of the arteriosclerosis and the nephritis are generally the same. Alcohol, except as a part of overeating and as a disturber of the digestion, is perhaps not a direct cause of arteriosclerosis, as alcohol is a vasodilator. Hard physical labor and severe athletic work may cause arteriosclerosis to develop, and it is liable to develop in the arteries of the parts most used. Hypertension is generally a prelude to arteriosclerosis, and everything which tends to increase tension promotes the disease; everything which tends to diminish tension more or less inhibits the disease. Therefore a subsecretion of the thyroid predisposes to arteriosclerosis, and increased secretion of the suprarenals predisposes to arteriosclerosis, the thyroid furnishing vasodilator substance and the suprarenals vasopressor substance to the blood. Furthermore. if these secretions are abnormal, protein metabolism is more or less disturbed. While arteriosclerosis often occurs coincidently with gout, and gout apparently may be a cause of arteriosclerosis, still the two diseases are widely dissociated, and the causes are not the same. Although the arterial pressure has been high before arteriosclerosis developed, and may remain high for some time in the arteries, unless the heart fails, the distal peripheral pressure, as in the fingers and toes, may be poor in spite of the high blood pressure. When the left heart begins to fail, pendent edema readily occurs. Next: Pathology Previous: Cardiac Disease In Pregnancy
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