Abstract
消化道出血可发生于任何年龄,儿童时期的消化道出血,除消化道本身的疾病外,也可能是全身性疾病的局部表现.造成消化道出血的病因与成人不同.年龄越少,对失血的耐受力越差,易发生失血性休克,反复小量出血,久之可导致贫血.不同部位出血致病原因不同,出血部位以屈氏韧带作为分界标志,屈氏韧带以上的消化道出血称为上消化道出血,屈氏韧带以下的消化道出血称为下消化道出血[1,2]。
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