PURPOSE: Surgical wound infection is the most frequent postoperative complication in abdominal surgery, especially at the colorectal level. The aim of this study is analysing the results of mechanical colon preparation combined with oral antibiotic versus mechanical colon preparation without antibiotic therapy in patients with colorectal cancer undergoing elective surgery. METHODS: This retrospective cohort study had been developed from November 2017 to February 2020. We have included a total of 281 consecutive patients undergoing elective colon and rectal oncological surgeries by the same surgical group using laparoscopic and open approaches. Transanal minimally invasive surgery (TAMIS) and transanal total mesorectal excision (TaTME) approaches were excluded. Exposed patients undergoing colon and rectal cancer surgery received mechanical bowel preparation and oral antibiotics with three doses of neomycin 1 g and erythromycin 500 mg the day before surgery. RESULTS: The primary outcome was reduction in surgical wound infection rates before and after starting the oral antibiotic therapy from 17 to 6% (p < 0.05). As a secondary analysis, we evaluated the anastomotic dehiscence rate, corresponding with a decrease from 12 to 3% (p < 0.05). CONCLUSION: Mechanical bowel preparation combined with oral antibiotic therapy is still not unanimously carried out in all the medical hospitals. In this report, we show that mechanical bowel preparation in combination with oral antibiotic reduces the risk of surgical wound infection and anastomotic leakage in patients undergoing colon and rectal cancer surgery.
PURPOSE: Surgical wound infection is the most frequent postoperative complication in abdominal surgery, especially at the colorectal level. The aim of this study is analysing the results of mechanical colon preparation combined with oral antibiotic versus mechanical colon preparation without antibiotic therapy in patients with colorectal cancer undergoing elective surgery. METHODS: This retrospective cohort study had been developed from November 2017 to February 2020. We have included a total of 281 consecutive patients undergoing elective colon and rectal oncological surgeries by the same surgical group using laparoscopic and open approaches. Transanal minimally invasive surgery (TAMIS) and transanal total mesorectal excision (TaTME) approaches were excluded. Exposed patients undergoing colon and rectal cancer surgery received mechanical bowel preparation and oral antibiotics with three doses of neomycin 1 g and erythromycin 500 mg the day before surgery. RESULTS: The primary outcome was reduction in surgical wound infection rates before and after starting the oral antibiotic therapy from 17 to 6% (p < 0.05). As a secondary analysis, we evaluated the anastomotic dehiscence rate, corresponding with a decrease from 12 to 3% (p < 0.05). CONCLUSION: Mechanical bowel preparation combined with oral antibiotic therapy is still not unanimously carried out in all the medical hospitals. In this report, we show that mechanical bowel preparation in combination with oral antibiotic reduces the risk of surgical wound infection and anastomotic leakage in patients undergoing colon and rectal cancer surgery.
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