Perioperative complicated intra-abdominal infections：Recognition and standardized therapy        WANG Ge-fei，REN Jian-an，LI Jie-shou. Clinical School of Medical College of  Nanjing University, Research Institute of General Surgery, Nanjing General Hospital of Nanjing Military Command, PLA, Nanjing 210002，China
Corresponding author：REN Jian-an，E-mail：jiananr@gmail.com
Abstract    Postoperative complicated intra-abdominal infections (cIAIs) are common but challenges in clinical practice, which need adequate source control procedure and antimicrobial therapy. Damage control and step-up approach should be set up during source control procedure of cIAIs. Initial minimally invasive intra-abdominal drainage like percutaneous drainage using a sump drain by trocar puncture should be performed. If minimally invasive drainage can't control infection，surgical drainage should be administrated. If complicated with abdominal hypertension，open abdomen should be taken into consideration. Empiric antimicrobial therapy should be initiated once a patient receives a diagnosis of an intra-abdominal infection according to epidemiological feature，followed by pathogen-directed antimicrobial therapy.