Risk factors of surgical site infection after incarcerated inguinal hernia repair        YANG Lin-hua, CHEN Tao, WANG Jian. Department of General Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127,China
Corresponding author: WANG Jian，E-mail ：dr_wangjian@yahoo.com.cn
Abstract    Objective    To investigate risk factors of surgical site infection after incarcerated inguinal hernia repair. Methods    The clinical data and follow-up of 301 cases of incarcerated inguinal hernia repair performed from January 2005 to December 2010 in Renji Hospital, Shanghai Jiao Tong University were analyzed retrospectively. Cases of intestinal necrosis were excluded. Results    All cases had short-term follow-up (3 month). There were 13 cases of postoperative complication including 1 case of localized hematoma（0.3%）, 8 cases of seroma （2.7%）and 4 cases of superficial surgical site infection （1.3%）. Diabetes（P=0.015）, incarcerated time （P=0.005）and seroma （P =0.000）were related to superficial surgical site infection in short-term follow-up and no mesh infection was found. Among 226 cases (75.1%) of long-term follow-up (6-72 months), neither surgical site infection nor mesh infection was found, except for 3 cases of hernia recurrences. Conclusion    Surgical site infection rate in short-term is related to diabetes, incarcerated time (>24 hours) and seroma. Tension-free hernia repair is safe and feasible in incarcerated inguinal hernia.