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铁、维生素和叶酸盐缺乏:消化性溃疡胃手术后病人发生突然或长期衰弱的偶见原因是贫血。如果和手术有关,那么,贫血反映出红细胞生成不足或丢失过多。丢失过多意味着出血。出血常常(但不总是)提示手术后溃疡。慢性出血较少见的来源是胃残端的复发性溃疡或手术时被忽视的溃疡,糜烂性胃炎或无关的病变。红细胞生成受损是由于铁吸收不足或失血引起的缺铁所致;或是缺乏其他必须的、值得注意的内因子、外因子(维生素 B_(12))或叶酸所致。
Iron, vitamins and folate deficiency: peptic ulcer Occasionally, a patient with sudden or long-term debilitation of gastric surgery is anemia. If it is surgery-related, then anemia reflects underproduction or loss of red blood cells. Too much loss means bleeding. Bleeding often (but not always) suggests postoperative ulcers. The less common source of chronic bleeding is recurrent ulceration of the gastric stump or neglected ulcers at surgery, erosive gastritis or unrelated lesions. Erythropoiesis is impaired due to inadequate absorption of iron or iron deficiency caused by blood loss, or lack of other essential and notable intrinsic and exogenous factors (vitamin B 12) or folic acid.