感染性休克也称败血症性休克或中毒性休克,是发生在严重感染基础上,由病原微生物及其毒素或抗原抗体复合物在人体引起的以急性微循环障碍为主要临床表现的危重综合征。病死率超过50%,是危重患者的首位死亡原因[1]。感染性休克属于分布性休克,以血流分布异常为主要发生机制[2]。 Septic shock, also known as septic shock or toxic shock, is a critical syndrome with acute microcirculation disturbance as the main clinical manifestation in humans caused by pathogenic microorganisms and their toxins or antigen-antibody complexes that occur on the basis of severe infections. Case fatality rate of more than 50%, is the first cause of death in critically ill patients [1]. Septic shock is a distributed shock, abnormal distribution of blood flow as the main mechanism [2].