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Journal of Korean Neurosurgical Society 1987;16(1): 165-174.
Lysis of Intracerebral Hematoma with Thrombolytic Agents in a Rabbit Model.
Young Beag Kim, Jong Sik Suk, Duck Young Choi, Kwang Seh Rhim
Department of Neurosurgery, College of Medicine, Chung-Ang University, Korea.
ABSTRACT
The lysing capability urokinase(UK) and streptokinase (SK) in intracerebral hematoma were examined in vitro and in a rabbit model. Intracerebral-intraventricular(IC-IV) hematomas were created by stereotaxically injecting 0.2ml of clotted human blood into the frontal lobe and lateral ventricle of a total of 87 house rabbits(weighing 1.5-2.7kg). Control animals received 0.2ml of physiologic saline infused into the clot, and the experimental group received an equal volume of UK solution(50,000units/ml), SK solution(50,000units/ml), UK-SK mixture(0.1ml of UK solution, 0.1ml of SK solution) respectively after the clot infusion. Forty two animals were sacrificed at 3 hours and 45 animals at 24 hours after infusion, The results obtained were as follows: 1) At 3 hours, clot lysis had been achieved in 8(67%) of 12 UK-infused animals, 5(36%) of 14 SK-infused animals and 6(60%) of 10 UK-SK-infused animals as compared to zero of 6 controls. 2) At 24 hours, clots had been lysed in 11(73%) of 15 UK-infused animals, 8(67%) of 12 SK-infused animals, 8(67%) of 12 UK-SK-infused animals and in 2(33%) of 6 controls. 3) There was mild inflammatory reaction by the clotted blood, but no additional histologic abnormality by thrombolytic agents(UK,SK) on microscopic examination. 4) Therefore we suggest that UK, SK or UK-SK mixture may be effectively used for the lysis of clotted intracerebral hematoma in the rabbit model and UK, UK-SK mixture are more effective than SK at 3 hours.
Key Words: Intracerebral Hematoma; Urokinase; Streptokinase
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