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Regional spinal cord blood flow (S. C. B. F.) was determined in rabbits by hydrogen clearance method. During the measurements, systemic arterial blood pressure and Paco2 were maintained within the nomal limit. After laminectomy at the thoracic region, a platinum electrode, 100μm in diamiter, was inserted from 1mm to 2mm deep into the spinal cord.The mean value of S. C. B. F. was 30.2±1.3ml/100gm/min in the gray matter and 15.6±0.5 in the white matter respectively.There were no remarkable changes in S. C. B. F. while the blood pressure was maintained in the range of 60 to 130mmHg. The value of S. C. B. F., however, showed changes above 130mmHg or below 60mmHg.S. C. B. F. was affected remarkably by the change of Paco2, showing a linear increase with the increase of Paco2.
西日本整形・災害外科学会の論文