• Gill Norman, Jo C Dumville, Devi Prasad Mohapatra, Gemma L Owens, and Emma J Crosbie.
• School of Nursing, Midwifery and Social Work, University of Manchester, Jean McFarlane Building, Oxford Road, Manchester, UK, M13 9PL.
• Cochrane Db Syst Rev. 2016 Mar 29; 3 (3): CD011712CD011712.

BackgroundFollowing surgery, incisions are usually closed by fixing the edges together with sutures (stitches), staples, adhesives (glue) or clips. This process helps the cut edges heal together and is called 'healing by primary intention'. However, a minority of surgical wounds are not closed in this way. Where the risk of infection is high or there has been significant loss of tissue, wounds may be left open to heal by the growth of new tissue rather than by primary closure; this is known as 'healing by secondary intention'. There is a risk of infection in open wounds, which may impact on wound healing, and antiseptic or antibiotic treatments may be used with the aim of preventing or treating such infections. This review is one of a suite of Cochrane reviews investigating the evidence on antiseptics and antibiotics in different types of wounds. It aims to present current evidence related to the use of antiseptics and antibiotics for surgical wounds healing by secondary intention (SWHSI).ObjectivesTo assess the effects of systemic and topical antibiotics, and topical antiseptics for the treatment of surgical wounds healing by secondary intention.Search MethodsIn November 2015 we searched: The Cochrane Wounds Specialised Register; The Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library); Ovid MEDLINE; Ovid MEDLINE (In-Process & Other Non-Indexed Citations); Ovid EMBASE and EBSCO CINAHL. We also searched three clinical trials registries and the references of included studies and relevant systematic reviews. There were no restrictions with respect to language, date of publication or study setting.Selection CriteriaRandomised controlled trials which enrolled adults with a surgical wound healing by secondary intention and assessed treatment with an antiseptic or antibiotic treatment. Studies enrolling people with skin graft donor sites were not included, neither were studies of wounds with a non-surgical origin which had subsequently undergone sharp or surgical debridement or other surgical treatments or wounds within the oral or aural cavities.Data Collection And AnalysisTwo review authors independently performed study selection, risk of bias assessment and data extraction.Main ResultsEleven studies with a total of 886 participants were included in the review. These evaluated a range of comparisons in a range of surgical wounds healing by secondary intention. In general studies were small and some did not present data or analyses that could be easily interpreted or related to clinical outcomes. These factors reduced the quality of the evidence.Two comparisons compared different iodine preparations with no antiseptic treatment and found no clear evidence of effects for these treatments. The outcome data available were limited and what evidence there was low quality.One study compared a zinc oxide mesh dressing with a plain mesh dressing. There was no clear evidence of a difference in time to wound healing between groups. There was some evidence of a difference in measures used to assess wound infection (wound with foul smell and number of participants prescribed antibiotics) which favoured the zinc oxide group. This was low quality evidence.One study reported that sucralfate cream increased the likelihood of healing open wounds following haemorrhoidectomy compared to a petrolatum cream (RR: 1.50, 95% CI 1.13 to 1.99) over a three week period. This evidence was graded as being of moderate quality. The study also reported lower wound pain scores in the sucralfate group.There was a reduction in time to healing of open wounds following haemorrhoidectomy when treated with Triclosan post-operatively compared with a standard sodium hypochlorite solution (mean difference -1.70 days, 95% CI -3.41 to 0.01). This was classed as low quality evidence.There was moderate quality evidence that more open wounds resulting from excision of pyomyositis abscesses healed when treated with a honey-soaked gauze compared with a EUSOL-soaked gauze over three weeks' follow-up (RR: 1.58, 95% CI 1.03 to 2.42). There was also some evidence of a reduction in the mean length of hospital stay in the honey group. Evidence was taken from one small study that only had 43 participants.There was moderate quality evidence that more Dermacym®-treated post-operative foot wounds in people with diabetes healed compared to those treated with iodine (RR 0.61, 95% CI 0.40 to 0.93). Again estimates came from one small study with 40 participants.Authors' ConclusionsThere is no robust evidence on the relative effectiveness of any antiseptic/antibiotic/anti-bacterial preparation evaluated to date for use on SWHSI. Where some evidence for possible treatment effects was reported, it stemmed from single studies with small participant numbers and was classed as moderate or low quality evidence. This means it is likely or very likely that further research will have an important impact on our confidence in the estimate of effect, and may change this estimate.

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