1146 Use of Prophylactic Oral Antibiotics in Preventing Postoperative Surgical Site Infections in Elective Colorectal Surgery – A Review

Abstract

Abstract Aim To prevent postoperative surgical site infections (SSIs), prophylactic oral antibiotics (OA) administration in combination with mechanical bowel preparation (MBP) and prophylactic parenteral (IV) antibiotics have been a preoperative procedure in elective colorectal surgery. Hence, the aim of this article is to review the effectiveness of prophylactic OA in preventing SSIs in elective colorectal surgery. Method PubMed and Scopus databases were searched. Search criteria included keywords such as antibiotic prophylaxis, oral antibiotic prophylaxis, parenteral antibiotic prophylaxis, postoperative surgical site infection and colorectal surgery. Selection criteria included any randomised controlled trials (RCTs) which investigated the effectiveness of prophylactic OA, with or without prophylactic IV antibiotics in preventing SSIs in elective colorectal surgery in adult population, published from the years 2010 onwards. Only full text studies and papers published in English language were chosen. Results Ten RCTs were included in this study. Studies indicated that OA alone could significantly reduce the risk of postoperative SSIs (p < 0.05). Further analysis of these studies showed that in the presence of IV antibiotic prophylaxis, there is an even greater reduction in the risk of SSIs (P < 0.05). However, an article by Hjalmarsson et al. showed that there was a significantly greater rate of incisional SSIs in prophylactic OA group in comparison to prophylactic IV antibiotics group (P < 0.022). Conclusions These studies indicate that OA in combination with IV antibiotic prophylaxis is superior to either IV antibiotic prophylaxis or OA prophylaxis respectively. Hence, it is advisable to administer a combined OA and IV antibiotic prophylaxis in elective colorectal surgery.