Besides the known cardiovascular effects of hemorrhagic shock, the following regular metabolic consequences can be demonstrated in rabbits: The rise in blood sugar in hemorrhagic shock increases with the amount of blood withdrawn per unit time. The rise in blood sugar is independent of the state of consciousness or Nembutal anesthesia. The characteristic rise in blood sugar lasts longer than the partial exsanguination phase. The rise in blood sugar is attributed to an increased glycogenolysis due to a reflex triggering of catecholamine secretion via the baroreceptors in hemorrhagic shock. More attention to metabolic consequences of hemorrhagic shock may possibly give rise to consequences for diagnosis and therapy of shock.
Besides the known cardiovascular effects of hemorrhagic shock, regular metabolic consequences can be demonstrated in the rabbit: 1. The rise in blood sugar in hemorrhagic shock increases with the amount of blood withdrawn per unit of time. 2. The characteristic rise in blood sugar lasts longer than the phase of the partial exsanguination. 3. In traumatic shock, the rise in blood sugar indicates the degree of severity of the injury earlier than the fall in blood pressure does. The rise in blood sugar is attributable to a reflex increase in glycogenolysis due to catecholamine secretion elicited via baroreceptors in hemorrhagic shock. For the pronounced rise in blood sugar in traumatic shock, an additional receptor is postulated. Supplementary investigation of the blood sugar may possibly enable the extent of the injury to be diagnosed earlier in traumatic shock, and the negative sequelae may be reduced by timely, adequate therapy.
The advantage of autologous cancellous bone grafts in sites of weak osteogenic potency has long been appreciated. It now needs to be tested whether crushed cortical bone can be used for bone induction in sites of strong osteogenic potency. The grinding device described here enables the preparation of bone dust of variable particle size under sterile conditions.
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