• Jingwen Wang, Gang Ji, Zhifu Yang, Miaomiao Xi, Yin Wu, Peixi Zhao, Lei Wang, Wenhan Yu, and Aidong Wen.
• Int J Clin Pharm Th. 2013 Dec 1; 51 (12): 924-31.

ObjectiveInfection is one of possible complications after prosthetic material hernia repair surgery. Antibiotic prophylaxis is applied routinely in China, but its effect is still controversial. The present study aims to offer direct clinical evidence on prevention of infection after tension-free inguinal hernia repair.MethodsA total of 1,200 cases with primary inguinal hernia treated in 6 hospitals in Shaanxi Province were enrolled in this study. They were randomly divided into three groups (n = 400 per group): placebo control group, Cefazolin group and Levofloxacin group after tensionfree inguinal hernia repair using polypropylene mesh. Hernia type, age, gender, weight and complications were recorded. The surgical-site infection was diagnosed according to APIC, CDC criteria (http://www.apic. org). Infections were evaluated every other day in the first week, and then at 14 days, 21 days and 30 days following surgery.ResultsTwo cases from the placebo group, 3 from the Cefazolin group and 3 from the Levofloxacin group failed to follow-up. Six patients (2 non-following the protocol, 2 severe depression, and 2 laparoscopic surgery) from the placebo group, 14 (8 nonreceiving trial medication, 5 laparoscopic surgery, and 1 failure to tolerance) from the Cefazolin group, and 12 (2 combination of antibiotic usage, 5 laparoscopic surgery and 5 failure to tolerance) from the Levofloxacin group were excluded. The data of the 1,160 cases were statistically analyzed in the incidence rates of surgical-site infection and complications after inguinal hernia repair. Surgical-site infection including wound infection, cellulitis or mesh-related infection was found in 20 cases (5.1%) of the control group, 15 (3.92%) of the Cefazolin group and 17 (4.42%) of the Levofloxacin group, and the difference among the three groups was not statistically significant (χ2 = 0.438, p = 0.803). There was also no significant difference in post-surgery complications including seroma (p = 0.6366), urinary retention (p = 0.8136), fat liquefaction (p = 0.8061), pulmonary infection (p = 0.1911), and urinary tract infection (p = 0.8144) among the three groups.ConclusionsProphylactic use of Cefazolin or Levofloxacin did not significantly decrease the risk of wound infection in these patients undergoing inguinal hernia repair. The present results do not support the administration of antibiotic prophylaxis for tension-free inguinal hernia repair. *The authors contributed equally to this work.

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