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KMID : 0382619850050010317
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Hanyang Journal of Medicine
1985 Volume.5 No. 1 p.317 ~ p.326
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A Clinical Study on the Peripheral Blood Circulation during Extracorporeal Circulation for Open Heart Surgery.
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Abstract
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In order to estimate the state of peripheral blood circulation during extracorporeal circulation with Sarn´s Heart-Lung-Machine Model 5000 in open heart surgery, we measured the blood lactic acid level and urinary excretion in 32 patients. The results were as follows:
1. The blood lactic acid level at 10 and 120 minutes after the start of extracorporeal circulation was 90.79±35.22 mg/dl and 134.30±40.74 mg/dl respectively.
2. The blood lactic acid level was lower in the group of patients in whom the injec-tion of sodium bicarbonate was required than the group the injection of sodium bicarbonate was not needed. Sodium bicarbonate had been injected due to a decrease of HCO3 in the blood during extracorporeal circulation. These data sug-gest that increased blood lactic acid level does not influence the development of metabolic acidosis.
3. The urine excretion during extracorporeal circulation was maintained over 100 ml/hr., suggesting adequate renal blood flow.
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KEYWORD
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