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在心肌梗塞(MI)的急性期中,当伴有严重室性心律失常时,常可观察到低钾血症。由于在狗的急性心肌梗塞(AMI)时和给狗静注肾上腺素后,血浆儿茶酚胺水平增加以及血清钾降低,因此作者认为AMI时的暂时性低钾血症.可能是循环血液中儿茶酚胺增加所致。本研究给正常人静注肾上腺素,使之达到AMI时的血浆水平,以研究对血清钾和心电图(ECG)的影响。方法选择9名平均年龄26岁的正常男性,进食清淡早餐后,休息90min。在两侧肘前静脉各插入一静脉套管,连续3次90min输注5％葡萄糖,加维生素C1mg/ml,然后依次输注不含肾上腺素、含1-肾
Hypokalemia is often observed in the acute phase of myocardial infarction (MI) when accompanied by severe ventricular arrhythmias. Because of increased levels of plasma catecholamines and lower serum potassium after acute myocardial infarction (AMI) in dogs and intravenous epinephrine, the authors suggest that transient hypokalemia at AMI may be due to an increase in circulating catecholamines To In this study, normal subjects were anesthetized with epinephrine to achieve plasma levels at AMI to study the effects on serum potassium and electrocardiogram (ECG). Methods Nine normal men aged 26 years were selected. After eating light breakfast, rest for 90 minutes. On each side of the antecubital vein into a vein cannula, 3 consecutive 90min infusion of 5% glucose, plus vitamin C1mg / ml, followed by infusion of epinephrine-free, containing 1-kidney