迄今,镁代谢在胃肠病学范围内仍未引起足够的重视。事实上许多胃肠道疾病可并发缺镁,例如短肠综合征(Short bowel Syndrome),局限性肠炎,溃疡性结肠炎,以及肝硬化。作者介绍一个严重的和典型的缺镁表现的病例。病人56岁,女性,因上肠系膜动脉闭塞行急症广泛性小肠切除术。仅保留十二指肠和45厘米小肠。术后10天因顽固性腹泻,低血钾和血中尿素不断增加而转至内科。以后数周排出大量的水样便,尽管给予大量的肠胃外补充,钾、钙和水的缺乏仍不能纠正。病人逐渐出现意识模糊,有时急躁易怒,甚至躁动。主诉感觉异常而且逐 To date, magnesium metabolism has not received sufficient attention in the field of gastroenterology. In fact, many gastrointestinal diseases can be complicated by magnesium deficiency, such as Short bowel syndrome, Crohn’s disease, ulcerative colitis, and cirrhosis. The authors describe a serious and typical case of magnesium deficiencies. Patient, 56 years old, female, extensive small bowel resection due to emergency upper mesenteric artery occlusion. Only duodenum and 45 cm small intestine remain. Ten days after surgery due to intractable diarrhea, hypokalemia and blood urea continuously transferred to the internal medicine. After a few weeks to discharge a large number of watery stool, despite giving a lot of parenteral supplements, potassium, calcium and water deficiencies still can not be corrected. Patients gradually blurred consciousness, irritability and sometimes irritability, or even restlessness. Feel abnormal and complained