在危重的烧伤、颅脑外伤和手术后呼吸衰竭病人有5～30%发生急性上消化道出血。引人注目的是这类出血多发生于呼吸窘迫综合征,后者是以肺毛细血管内皮细胞弥漫性损害、导致肺泡水肿和动脉缺氧为特征的未完全认识清楚的病变。呼吸窘迫综合征多数伴有严重外伤和脓毒血症,但有时也见于其他情况引 In critically burned, traumatic brain injury and postoperative respiratory failure patients 5 to 30% of acute upper gastrointestinal bleeding. Strikingly, this type of hemorrhage occurs mostly in respiratory distress syndrome, which is a lesser known disease characterized by diffuse damage of pulmonary capillary endothelial cells, resulting in alveolar edema and arterial hypoxia. Most of respiratory distress syndrome with severe trauma and sepsis, but sometimes also cited in other cases cited