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Alley mentions a New Orleans wharf laborer, in whose ear was poured some molten lead; seventeen months afterward the lead was still occupying the external auditory meatus. It is quite remarkable that the lead should have remained such a length of time without causing meningeal inflammation. There was deafness and palsy of that side of the face.
Pepper records a case in which a knife was thrust through the spheroidal fissure, wounding a large meningeal vein, causing death from intracranial hemorrhage. Nelaton describes an instance in which the point of an umbrella wounded the cavernous sinus and internal carotid artery of the opposite side, causing the formation of an arteriovenous aneurysm which ultimately burst, and death ensued.
A good illustration of subcutaneous rupture of the arteries of the head is afforded by the tearing of the middle meningeal artery caused by the application of blunt violence to the skull; and of the arteries of the trunk caused by the tearing of the renal artery in rupture of the kidney.
The saw cut directly down into the brain, severing the superior longitudinal sinus, besides tearing a branch of the meningeal artery. The wound was filled with sawdust left by the saw while it was tearing through the parts. After ordinary treatment the man recovered.
In 1517 the disease lasted full six months and reached its greatest height about six weeks after its appearance, but was apparently limited to England. Meningeal symptoms were characteristic of the third visitation of the disease. In 1528 and 1529 there was a fourth visitation which resulted in the destruction of the French Army before Naples.
A man of twenty was pricked in the ear by a needle entering the meatus. He uttered a cry, fell senseless, and so continued until the fourth day when he died. The whole auditory meatus was destroyed by suppuration. Gamgee tells of a constable who was stabbed in the left ear, severing the middle meningeal artery, death ensuing.
Even without emboli there may be meningeal symptoms: headache, restlessness, delirium, dislike of light and noise, and stupor; even convulsions may occur. The urine generally soon shows albumin; there may be joint pains; the spleen is enlarged and the liver congested. Some definite cardiac symptoms are soon in evidence, with more or less progressive cardiac weakness.
We know as an empirical fact that far-seeing tendencies often carry out their purpose, but we know also that they are often defeated by the failure of some contemptibly small process on which success depends. A little thrombus in a statesman's meningeal artery will throw an empire out of gear. Therefore I cannot even hint at any solution of the pragmatic issue.
They say that "quite frequently though the percussion comes in the anterior part of the cranium, the cranium is fractured on the opposite part." They even seem to have known of accidents such as we now discuss in connection with the laceration of the middle meningeal artery. They warn surgeons of the possibilities of these cases.
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