体外循環の際の静脈拍動の効果

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タイトル別名
  • The effect of venous pulsation on extracorporeal circulation

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The effect of venous pulsation on the microcirculation was studied in dogs.<br>An apparatus producing pulsatile venous flow was utilized on one side in regional perfusion of both hind legs for 4 hours. The venous flow rate did not decrease in cases with pulse pressure of 1, 5cm. H2O, 2, 5cm. H2O and 3, 5cm. H2O. The oxygen saturation of venous blood was generally lowes on the pulsation side than on the nonpulsation side. The oxygen consumption was higher on the pulsation side than on the nonpulsation side.<br>The intramuscular PO2 was also higher on the pulsation side.<br>On histological examination, muscle perfused with palsatile venous flow of 1, 5cm. H2O and 2, 5cm. H2O pulse pressure showed no abnormal findings. In cases of 3, 5cm. H2O pulse pressure, diffuse hemorrhage and interstitial edema were recognized. These findings suggestd that venous pulsation with a proper pulse pressure might be effective to maintain the microcirculation.

収録刊行物

  • 人工臓器

    人工臓器 6 (1), 39-43, 1977

    一般社団法人 日本人工臓器学会

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