| 体外循环期间血浆与红细胞内钾的改变及补钾方法探索 |
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| 引用本文： | 孙立,李兆志.体外循环期间血浆与红细胞内钾的改变及补钾方法探索[J].西安交通大学学报(医学版),1993(2). |
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| 作者姓名： | 孙立 李兆志 |
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| 作者单位： | 西安医科大学第一附属医院心脏外科，西安医科大学第一附属医院心脏外科 西安 710061，西安 710061 |
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| 摘 要： | 作者观察了30例心内直视手术患者于体外循环前、中、后血浆钾及红细胞内钾的变化及其影响因素,并分析钾的补充量,发现:灌注前、中的低血钾倾向主要是由于钾向红细胞内转移,而在灌注后主要是尿钾排泄所致;钾的内转移主要受低温、灌注时间及血pH的影响;转流中血钾在4.0m mol/L以下时可导致细胞内钾丢失,提出灌注中补钾量应至少>1.56m mol/kg才能维持血钾在4.0 m mol/L以上。
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| 关 键 词： | 体外循环 血浆钾 红细胞内钾 |
THE METABOLIC CHANGES OF POTASSTUM IN PLASMA AND RED CELLS DURING CARDIOPULMONARY BYPASS AND THE STUDY OF POTASSIUM REPLACEMENT |
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| Sun Li,Li Zhaozhi.THE METABOLIC CHANGES OF POTASSTUM IN PLASMA AND RED CELLS DURING CARDIOPULMONARY BYPASS AND THE STUDY OF POTASSIUM REPLACEMENT[J].Journal of Xi‘an Jiaotong University:Medical Sciences,1993(2). |
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| Authors: | Sun Li Li Zhaozhi |
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| Institution: | Sun Li,Li Zhaozhi Department of Cardiovascular Surgery,First Affiliated Hospital |
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| Abstract: | The potassium content in serum, red cells andsome factors involved in hypopotassium were ob-served in 30 cases with open heart surgery. Ac-cording to the results, we conclude that (1) Hy-popotassium tendency before and during cardiopul-monary bypass was mainly produced by the potas-sium moving into the red cells from the serum. Af-ter Cardiopulmonary bypass it was mainly owing tothe excretion of potassium through the urine. (2)The potassium shifting into the red cells waschiefly affeced by the bypothermia, pH, and perfu-sion time. (3) The red cell potassium lost whenplasma potassium value set below 4. 0 m mol/L.1. 56 m mol/kg of potassium administered was atleaset reqired to maintain plasma potassium leverover 4. 0 m mol/L. |
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| Keywords: | cardiopulmonary bypass potassium in plasma and red cells |
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