Conclusion Intestinal anoxia is the direct cause of mucosa damage.Endotoxinemia and intestinal mucosa damage can form a vicious circle aggravating the pathological lesion.

• 结论 肠道缺血缺氧是肠黏膜屏障损害的直接原因，内毒素与肠黏膜损害形成恶性循环，加重屏障损害。