Vicious circles in disease / by Jamieson B. Hurry.

  • Jamieson Boyd Hurry
Date:
1913
Catalogue details

Licence: Public Domain Mark

Credit: Vicious circles in disease / by Jamieson B. Hurry. Source: Wellcome Collection.

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    I.—DEATHS ASSOCIATED WITH THE VASCULAR SYSTEM Syncope. Syncope due to heart failure ranks as one of the commonest modes of death, and occurs under a variety of circumstances. Cardiac Dilatation. For example, acute cardiac dilatation may weaken the coronary circulation to such a degree that insufficient blood reaches the myocardium to allow of its continued activity. The less the blood supplied to the myocardium, the feebler the systole, and vice versa. This Circle probably caused the death of the soldier who raced to Athens with the news of Marathon, and dropped dead on arrival. The prolonged strain led to cardiac dilatation, to inadequate coronary circulation, to inadequate nutrition of the myocardium, to further dilatation and to syncope. Arterial Sclerosis Death frequently results from arterial sclerosis producing coronary obstruction, a condition which accounts for the demise of many elderly persons, to whom death comes like a “ bolt from the blue.” The morbid process has probably been in progress for years, until a stage is reached when the lumen of one or both coronary arteries is almost obliterated by degenerative processes. The exaggerated vis a fronte requires an increased vis a