严重感染和感染性休克是威胁危重病人生命的严重问题之一,临床有较高的发病率和病死率。有研究报道,美国每年发生严重感染和感染性休克的病人高达75万例。近些年随着重症医学的发展,对严重感染及感染性休克病人的监护及生命支持治疗水平有了很大提高,但其病死率仍维持在25%~80% Serious infections and septic shock are one of the serious problems that threaten the lives of critically ill patients. They have higher morbidity and mortality in clinical practice. Studies have reported that in the United States up to 750,000 cases of severe infections and septic shock occur each year. In recent years, with the development of critical medicine, the monitoring and life support and treatment of patients with severe infections and septic shock have been greatly improved, but the mortality rate remains at 25% -80%