Prophylaxis of Surgical Wound Infection With Topical Antibiotics

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Several Surgical site infection (SSI) prevention guidelines have been published over the last 10 years. Topical prophylaxis of the surgical wound with antibiotics or antiseptics is one of the most controversial measures proposed for SSI prevention. Two guidelines (British, Spanish Ministry of Health...

Several Surgical site infection (SSI) prevention guidelines have been published over the last 10 years. Topical prophylaxis of the surgical wound with antibiotics or antiseptics is one of the most controversial measures proposed for SSI prevention. Two guidelines (British, Spanish Ministry of Health) explicitly recommend not irrigating surgical wounds with any product. The World Health Organization considers irrigation with antibiotics as an unresolved issue and, together with the Centers for Disease Control, recommends irrigation with a solution of povidone iodine. The other four guides do not mention the measure. In Catalonia, a SSI prevention bundle recommends wound irrigation with saline, with a low level of recommendation. Therefore, topical prophylaxis with operational wound washings with different solutions has been poorly studied, evokes contradictory recommendations and is not included in the majority of clinical practice guidelines for SSI prevention. However, there we detected a high level of use of wound irrigation at the end of an intervention in actual clinical practice. In a survey conducted by 2017 by our group and answered by 845 general surgeons of the Spanish Association of Surgeons, before closing the skin, most surgeons (80.6%) irrigate the subcutaneous layer of the wound, either with saline (51.2%), an antiseptic solution (23.8%) or an antibiotic solution (1.5%). Only 19.4% of respondents do not irrigate. In another survey in 2018, focused on colorectal surgeons of two Spanish associations, similar rates of irrigation with saline, antiseptic or antibiotic were used (55%, 28.9% and 2.2%, respectively) The hypothesis of the study is that topical prophylaxis of the surgical wound with irrigation with an antibiotic solution decreases the rate of postoperative infection in patients undergoing abdominal surgery with different levels of contamination. The study will compare the efficacy of topical prophylaxis in the surgical wound with an irrigation with an antibiotic solution in the incidence of SSI in abdominal surgery. It is a randomized, controlled, multicenter, blind study by observer and patient, with two parallel study groups, phase IV. Design of studies The project includes several prospective comparative studies on the effect of irrigation of surgical wounds with an antibiotic solution on the incisional SSI rate in abdominal surgery. The studies share a unique methodology applied to various types of abdominal surgery with different expected SSI rates and different risk factors. In the trials, the irrigation of the wound with 0.9% physiological serum will be compared with the irrigation with an active principle solution of a pharmaceutical specialty of proven efficacy by parenteral route, administered topically and dissolved in physiological serum. Four studies on different types of operations are defined according to the risk of infection: Study 1. Complex abdominal wall surgery Study 2. Cesarean section Study 3. Colorectal elective surgery Study 4. Emergency abdominal surgery For each study two groups will be formed, the study group (irrigation with antibiotic solution) and the control group (irrigation with saline). The project has received the Spanish Drug Agency authorization as a low intervention study, a grant from the Spanish Ministry of Health and the Ethics Committee authorization of the Hospital General of Granollers.

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