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低血镁综合征是指血清镁低于1.5mEq/L或伴有低血钾或/和低血钙的临床综合征。近年来发现本征并非罕见。现将本征的神经系统表现及其发病机理综述如下。一、病因及其发病机理: (一)镁摄入不足或吸收减少:吸收不良综合征除低血镁外,通常伴低血钙、低蛋白血症和有胃肠道疾病的证据。慢性酒精中毒引起低血镁的机理相当复杂,营养不良和吸收不良是其主要原因;乙醇也能直接作用于肾小管使镁排泄增加;Flink等发现酒精中毒者血游离脂肪酸增加,并与镁起皂化反应而沉积在周围组织中;此外,急性或重症酒精中毒因过度换气引起呼吸性硷中
Hypomagnesemia syndrome is a clinical syndrome of serum magnesium below 1.5 mEq / L or with hypokalemia or / and hypocalcemia. In recent years, it has not been rare to find the eigenvector. Now the intrinsic performance of the nervous system and its pathogenesis are summarized below. First, the etiology and pathogenesis: (A) inadequate intake of magnesium or reduced absorption: malabsorption syndrome in addition to low blood magnesium, usually with hypocalcemia, hypoproteinemia and gastrointestinal disease evidence. Chronic alcoholism caused by hypomagnesemia mechanism is quite complex, malnutrition and malabsorption is the main reason; ethanol can also act directly on the renal tubular excretion of magnesium increased; Flink found that alcoholism, blood free fatty acids increased, and with magnesium Saponification reaction and deposition in the surrounding tissue; In addition, acute or severe alcoholism due to hyperventilation caused by respiratory alkalosis