Transactions of the Section on Surgery, General and Abdominal of the American Medical Association at the Annual Session Volume 1917 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1917 edition. Excerpt: ...incident to the condition itself. The nerve impulse probably bears no quantitative relation to shock. Deep etherization may produce most of the symptoms of shock. The continued depressed state following deep anesthesia, while primarily due to the anesthetic, is soon complicated by the resulting factors of low blood pressure, subnormal temperature, and other changes. Some cases of the conditions diagnosed as surgical shock may be due to a combination deep anesthesia with reflex inhibition of respiration. Ether certainly does block afferent impulses to the higher centers but some of the reflexes involving the medullary centers, particularly those which inhibit respiration, are not blocked when very strong stimuli are employed. ABSTRACT OF DISCUSSION Dr. Fenton B. Tukck, New York: I have carried out investigations on shock in animals under anesthesia with the abdomen open and with the abdomen closed. The two conditions differ. I wish to call attention to one of the important findings in my investigations. A Briicke lens, used by the older physiologists, I found valuable in examining the vascular supply of the viscera in shock. The first change found taking place in the exposed viscera was venous dilatation as the first sign of shock, followed by changes in blood pressure and temperature. The various stages of these changes, beginning as Dr. Mann reports, with slight rosy tint, then going into the bluer shades, finally develop into complete shock with large tortuous vessels. I reported, in 1896, shock as a local peripheral disturbance first involving the veins of the viscera. Dr. Crile came to Chicago at the time I was continuing my experiments in shock and brought out his vasomotor center exhaustion theory in his vivid fashion, afterward...