We assessed blinding of outcome assessment and completeness of outcome data for each of the review outcomes separately. Where possible we extracted data by treatment group for the prespecified interventions and outcomes in this review. Effect of hydrocolloid dressings on healing by second intention after excision of pilonidal sinus, Comparison between Eusol and Silastic foam dressing in the postoperative management of pilonidal sinus, Multicentre prospective trial of silastic foam dressing in management of open granulating wounds. 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. (Kingsley 2004). Systemic antibiotics affect the whole body while topical treatments affect only a specific area of the body. The antiseptic in betadine cream works on a variety of bacteria, viruses, and fungi. GRADE working group: Schnemann H , Broek J, Guyatt G, Oxman A (Eds). We also searched the following clinical trials registries: We aimed to identify other potentially eligible trials or ancillary publications by searching the reference lists of retrieved included trials, as well as relevant systematic reviews, metaanalyses and Health Technology Assessment reports. Two review authors independently assessed the titles and abstracts of the citations retrieved by the searches for relevance. Studies which evaluated intervention schedules including other therapies (e.g. Mean difference = 4.70 more dressing changes in the iodine mesh group, 95% CI 1.66 to 7.74 (Analysis 1.3). There were a small number of relevant studies eligible for inclusion and these evaluated a heterogenous range of treatments. Study authors contacted to query, awaiting response, Postoperative pain (measured using 0 to 100mm VAS scale with 0 = no pain). Comparison of healing of incised abscess wounds with honey and EUSOL dressing, Journal of Alternative and Complementary Medicine. Thus, if an intervention effect is still demonstrated despite contamination in those trials that were not cluster randomised, a confident conclusion about the presence of an effect can be drawn. In: Higgins JPT, Green S (editors). A total of 96 patients out of 100 patients (47 in group A and 49 in group B) completed the study. If a trial was otherwise eligible (correct study design, population and intervention/comparator) but did not report a listed outcome, then we contacted the study authors where possible in order to establish whether a relevant outcome was measured but not reported. These are surgical wounds which are left open to heal through the growth of new tissue, rather than being closed in the usual way with stitches or other methods which bring the wound edges together. Survey of bacterial diversity in chronic wounds using Pyrosequencing, DGGE, and full ribosome shotgun sequencing, EuroQoL: a new facility for the measurement of heath-related quality of life, The validity of the clinical signs and symptoms used to identify localized chronic wound infection. 40 participants were randomised following wound complications following a csection resulting in an open wound. We reported outcome measures at the latest time point available (assumed to be length of followup if not specified) and the time point specified in the methods as being of primary interest (if this was different from latest time point available). The isolates included Staphylococcus aureus and anaerobic species, often associated with infection and delayed healing (Madsen 1996). Very unclear methodology and limited data. In general studies were small and some did not present data or analyses that could be easily interpreted or related to clinical outcomes. Studies which recruited people with a SWHSI alongside those with other types of wound were not included. Applying rhEGF could reduce the use of antibiotic ointments for cutaneous clean (class I) wound surgery. Comment: No details but at discharge patients attended their own wounds, as iodine has a distinctive colour patients could probably not be blinded for the intervention. It found that the constant need for treatments and care and the diminished quality of life were comparable to those reported by patients with different types of ulcers; feelings of shock, anguish, frustration and powerlessness were highlighted. (i) Recruitment bias can occur when individuals are recruited to the trial after the clusters have been randomised, as the knowledge of whether each cluster is an intervention or control cluster could affect the types of participants recruited. Presentation of data unclear to review authors, 32 Nigerian children with 43 pyomyositis abscesses, Group A: Honeysoaked gauze. We planned to supplement this assessment of clinical and methodological heterogeneity with information regarding statistical heterogeneity assessed using the Chi test (we considered a significance level of P < 0.10 to indicate statistically significant heterogeneity) in conjunction with the I measure (Higgins 2003). Cochrane Handbook for Systematic Reviews of Interventions Version 5.1.0 [updated March 2011]. 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. There were no restrictions of the searches with respect to language, date of publication or study setting. Cochrane Handbook for Systematic Reviews of Interventions Version 5.1.0 [updated March 2011]. Practical methods for incorporating summary time-to-event data into meta-analysis. Wound infection in clinical practice: an international consensus, The Cochrane Database of Systematic Reviews, Group A: Zinc oxide povidone mesh (n = 33), Group A: povidone iodineimpregnated mesh (n = 34 ). Wash your hands before touching your wound, and gently wash the wound daily with mild soap and water to keep out germs. Organ/space -- the infection is deep and involves the organ and space where . Such analyses create a unit of analysis error and produce overprecise results (the standard error of the estimated intervention effect is too small) and P values that are too small. Emma Crosbie: checked the quality of statistical analysis; performed part of writing and editing the review; approved the final version prior to submission; and advised on the review. A possible unit of analysis issue we anticipated was that randomisation had been carried out at the participant level with the allocated treatment used on multiple wounds per participant (or perhaps only on some participants) but data were presented and analysed per wound (clustered data). As with the Vermeulen Cochrane review, our review identified and excluded some trials included in the older reviews (Viciano 2000 (included in Lewis 2001); Walker 1991; Williams 1981 (included in both Lewis 2001 and Bradley 1999)) because of additional differences between trial arms. This may also help the wound to heal. Bacterial load in relation to vacuum-assisted closure wound therapy: a prospective randomized trial. Mean difference = 1.70 days, 95% CI 3.41 to 0.01. Background The presence of micro-organisms, such as bacteria, at wound sites following surgery can result in surgical site infections for patients. We also searched three clinical trials registries and the references of included studies and relevant systematic reviews. There is overlap in scope with a more general review of treatments for wounds healing by secondary intention (Bradley 1999) but this was also published before any of the included studies from our review, except for Schmidt 1991 which is included in all three previous reviews as well as our review. Carville K, Cuddigan J, Fletcher J, Fuchs P, Harding K, Ishikawa O, et al. they were considered in the denominator but not in the numerator). Nine studies investigated use of antiseptic/antibacterial solutions on wounds postoperatively, delivering these via gauze or other inert dressings (Agren 2006; Brehant 2009; Okeniyi 2005; Piaggesi 2010) via a soak (Tosti 2014) or wash (Giannini 2014) or topically (Fernandez 2002; Gupta 2008; Schmidt 1991). Position document of the Australian Wound Management Association: Bacterial impact on wound healing: from contamination to infection, http://www.awma.com.au/publications/2011_bacterial_impact_position_1.5.pdf. Version 5.1.0 [updated March 2011]. Oral and IV antibiotics may only be prescribed by a doctor. 21/4/22 Minor amendment made to Table 1 Study outcomes. The United Kingdom (UK) National Institute for Health and Care Excellence (NICE) currently recommends that the following not be used for SWHSI: Edinburgh University Solution of Lime (EUSOL) and gauze; moist cotton gauze; and mercuric antiseptic solutions, as small randomised studies suggest that these treatments are inferior to available alternatives. length of hospital stay we presented available data from the study reports/study authors and did not impute missing data. Accessibility Keep your skin injury clean. If studies reporting timetoevent data (e.g. GRADE assessment for proportion of wounds healed: Low quality evidence. We also excluded physical and biological therapies sometimes purported to have incidental antibacterial properties such as heat therapy and larval therapy. O'Meara S, Cullum NA, Majid M, Sheldon TA. There was no clear evidence of a difference in time to wound healing between groups. The gel was applied with each dressing change to the granulation tissue in the wound bed at the level of the subcutaneous tissue and dermis (n = 20; 10 with vertical incision; 9 with transverse incision). Two review authors independently checked the full papers for eligibility; we resolved disagreements by discussion and, where required, the input of a third review author. Time to healing (whilst KaplanMeier curve presented data noted to be mean and (SD)), Number of events (not number of participants with events) thus potential for clustering, Group A: Aloe vera and standard treatment (n = 20), Mean time in days to complete healing (SD), Group A: a 10% povidone iodine solution mixed with saline (n = 50). Not extracted. Advised on interpretation and content. Comparison 7: Triclosan compared with sodium hypochlorite, Outcome 2: Adverse events (bleeding/secretions). The dressing of the individual sites were randomly allocated to give insight into the rate of wound healing with honey and EUSOL devoid of confounding host factors. Longer contact creams and ointments include fusidic acid, mupirocin, neomycin sulphate and iodine (often as cadexomer iodine). The mean pain score at four weeks in the sucralfate group was 0.2 (SD = 0.1) compared with 1.4 (0.3). Where data were missing from reports, we attempted to contact the study authors and request this information. Vhody smoothies zvisia od toho, o do nich dte. Quotes: Allocation concealment was performed using centrally packaged, consecutively numbered, identical packages containing zinc oxide or placebo meshes. They would also like to thank Zhenmi Liu for her assistance with screening of papers for inclusion, and Ana Luiza C Martimbianco for her translation services. Antibiotic treatments compared with nonmicrobial treatments three comparisons. What are surgical wounds healing by secondary intention? Where these measures of variation remained unavailable we excluded the study from any relevant metaanalyses. Before Interventions assessed included antiseptics such as EUSOL and povidone iodine. Planned and unplanned healing by secondary intention. You may be started on antibiotics to treat the surgical wound infection. We grouped outcome data for wound healing using the following categories; the review authors used their judgement as to whether statistical pooling within these time categories was appropriate. Time to wound healing detect a reduction in time to healing of eight days from 28 days to 21 days (with 100 days recruitment and 100 days followup: 80% power; alpha 5%) = 388 participants, Proportion of wounds healed detect an increase in wound healing of 75% to 90% (80% power; alpha 5%) = 200 participants, Changes in clinical infection status detect a reduction in cases of wound infection from 14% to 10% 80% power; alpha 5%) = 2070 participants. Deeks JJ, Higgins JPT, Altman DG (editors). A subsequent Cochrane systematic review (Vermeulen 2004) identified 13 RCTs of dressings and topical treatments for SWHSI, all of which were small and of poor quality. ANTIBIOTICS. Viciano V, Castera JE, Medrano J, Aguilo J, Torro J, Botella MG, et al. 8 There is no documented benefit of antibiotics after wound closure in the reduction of . Robson MC, Lea CE, Dalton JB, Heggers JP. Although some of the trials suggested that one treatment may be better than another, this evidence was limited by the size of the studies and the ways they were carried out and reported. 1. The patients who were lost to followup did not differ from the rest of study participants in terms of demographics or clinical presentation. Delayed healing by primary intention may also be a planned approach. These CBD candies offer a simple and flexible . Take corticosteroids (for example, prednisone) Have surgery that lasts longer than 2 hours. Piaggesi A, Goretti C, Mazzurco S, Tascini C, Leonildi A, Rizzo L et al. Mean difference: 0.98, 95% CI 0.52 to 1.84. Okeniyi JA, Olubanjo OO, Ogunlesi TA, Oyelami OA. The changes we made included the use of optimal information size (OIS) to inform the GRADE assessment of imprecision. Mean pain score (including pain at dressing change) as a continuous outcome using a validated scale such as a visual analogue scale (VAS) or other recognised measurement instrument. It was not clear from the report that the infection events occurred in different people but we have assumed this was the case: RR 0.85, 95% CI 0.15 to 4.76 (Analysis 1.2). All this information should be clearly included in the trial report, as trial authors should anticipate the inclusion of their trials in systematic reviews. We calculated the OIS based on GRADE guidance of using a relative risk reduction of between 20% and 30%. Quote: The trial was single blind, randomized and comparative, Comment: Appears that all those randomised were included in analyses, Group A: Triclosan (Proctocid, Uniderm Farmaceutici, Srl, Rome, Italy) (n = 55), Quote: Each centre participating the study [. The primary safety outcome for the review was all reported adverse events. EUSOL); gentian violet; mupirocin and fusidic acid; neomycin sulphate; peroxides; iodine; silver; and honey. A comprehensive review of current evidence did not find convincing evidence in favour of the use of any particular antimicrobial treatment for surgical wounds healing by secondary intention for outcomes which matter (including wound healing and infection). Topical antibiotics are sometimes used to reduce microbial contaminant exposure following surgical procedures, with the aim of reducing SSIs. The document 'Wound Infection in Clinical Practice An International Consensus' (WUWHS 2008) outlines a scenario leading to wound infection where 'bacteria multiply, healing is disrupted and wound tissues are damaged (local infection)'. No information on who collected any outcome data reported, Participants were undergoing incision and drainage of a skin abscess, Group A: trimethoprimsulfamethoxazole (10 mg to 12 mg trimethoprim/kg/day divided into 2 doses, with a maximum dose of 160 mg. Quote: With a computer randomization program, subjects were then randomized in permuted blocks of 50 to receive a 10day course of placebo or trimethoprimsulfamethoxazole. The authors acknowledge the contribution of Megan Prictor and Denise Mitchell, copy editors. For timetohealing analysis using survival analysis methods, dropouts should be accounted for as censored data. wash the hands with soap and clean water. For example, in a vaccine trial of infectious diseases, a vaccine applied to all individuals in a community would be expected to be more effective than if the vaccine was applied to only half of the people. A review of the microbiology, antibiotic usage and resistance in chronic skin wounds, The wound infection continuum: a revised perspective, Performance of statistical methods for meta-analysis when true study effects are non-normally distributed: a simulation study, A re-analysis of the Cochrane Library data: the dangers of unobserved heterogeneity in meta-analyses, Chapter 6: Searching for studies. We completed a Preferred Reporting Items for Systematic Reviews and MetaAnalyses (PRISMA) flowchart to summarise this process (Liberati 2009). A rapid and systematic review of the clinical and cost-effectiveness of debriding agents in treating surgical wounds healing by secondary intention. Comment: 19 participants (12 receiving standard treatment and 7 receiving aloe vera), 100 participants undergoing surgery for all hand abscesses, Group A: a 10% povidone iodine solution mixed with saline in a 1:1 ratio hand soak. Group A: Zinc oxide (3%) polyvinylpyrrolidone (povidone) bound to a 50 cmlong cotton mesh of 2 (0.5 g) or 5 (1.25 g) cm widths. Critical colonisation is defined as a point between colonisation and infection where the healthy balance of wound flora is no longer maintained by the host and the bacterial load or species present in the wound,or both shift away from a socalled safe level. The studies themselves had small sample sizes. There was a reduction in time to healing of open wounds following haemorrhoidectomy when treated with triclosan postoperatively compared with a standard sodium hypochlorite solution (mean difference 1.70 days, 95% CI 3.41 to 0.01) (Giannini 2014). official website and that any information you provide is encrypted Two published audits from cities in the north of England estimated that SWHSI comprise approximately 28% of all acute wounds receiving wound care provision (Srinivasaiah 2007; Vowden 2009). time to complete wound healing) as hazard ratios (HRs) where possible, in accordance with the methods described in the Cochrane Handbook for Systematic Reviews of Interventions (Deeks 2011). Two studies investigated the use of antibiotics one (Duong 2010) investigated trimethoprimsulfamethoxazole postoperatively for people following surgery on skin abscesses while one (Khan 2014) investigated the use of antibiotics prior to haemorrhoidectomy surgery. Infection in the surgical wound may prevent healing, causing the wound edges to separate, or it may cause an . Adverse events (Any serious or nonserious adverse events occurring until wound closure or day 90 were reported to the coordinating investigator. We did not analyse the data further. These patients, 100 participants undergoing Milligan Morgan haemorrhoidectomy, Group A: 500 mg I/V metronidazole and 1 g Ceftriaxone I/V before induction of anaesthesia (n = 50). Data from randomised controlled trials (RCTs) show median times to healing of between 54 and 68 days (ranges from 33 to 168 days) depending on aetiology, with pilonidal sinus excisions taking longer to heal than abdominal wounds (Berry 1996; Shackelford 2002; Viciano 2000). Wounds which become infected (develop a surgical site infection (SSI)) also incur increased cost previously estimated at between GBP 814 and GBP 6626 per patient (Coello 2005; Plowman 2001). A randomized, double-blind, placebo-controlled multicenter trial evaluating topical zinc oxide for acute open wounds following pilonidal disease excision. the contents by NLM or the National Institutes of Health. RCTs which reported one or more of the following were considered to provide the most relevant and rigorous measures of wound healing: We used authors definitions of complete wound healing; these were reported where possible. Wounds were packed twice daily (n = 23 wounds). We excluded studies evaluating antibiotic or antiseptic regimes that were part of pre, intra or postoperative surgical site infection (SSI) prevention practices. This comparison includes one study which had 90 days' followup (Duong 2010) and assessed treatment for wounds resulting from incision and drainage of a skin abscess. An earlier systematic review of antimicrobial agents used for the treatment of all types of chronic wounds (O'Meara 2001) included three small trials assessing topical agents for pilonidal sinus excision wounds (but that were closed rather then left open) and a further three small trials of systemic antibiotics in the same indication. Triple Antibiotic may also be used for other purposes not listed in this medication guide. Mean difference = 1.20, 95% CI 1.83 to 0.57 (Analysis 7.3). Gemma Owens: is a recipient of an MCRC Clinical Research Training Fellowship and previously received a Wellbeing of Women Entry Level Scholarship. We have presented all data in Table 1. In November 2015 we searched for as many studies as possible that both had a randomised controlled design and looked at the use of an antibiotic or antiseptic in participants with surgical wounds healing by secondary intention. Recommendations on dressing type are based primarily on the level of wound exudate which determines the dressing substrate as well as the antimicrobial agent (BNF 2014). Quote: The double blinding was ensured by not disclosing the treatment group to the patient and to the surgeon who examined the patients on each visit and filled the performa. After this initial assessment, we obtained fulltext copies of all studies considered to be potentially relevant. We acknowledge that such analysis assumes that dropouts are missing at random and there is no pattern of missingness. A Health Technology Assessment (HTA) review from the same year assessed debridement for SWHSI (Lewis 2001). Presented as mean (SD) for groups. remove jewelry and clothing from around the wound. Quote: The patient, parents, and clinician who assessed the clinical outcome were blinded to group assignment. The 105 bacterial growth guideline: reassessing its clinical relevance in wound healing. Low risk of bias:Participants and investigators enrolling participants could not foresee assignment because one of the following, or an equivalent method, was used to conceal allocation: central allocation (including telephone, webbased and pharmacycontrolled randomisation); sequentially numbered drug containers of identical appearance; sequentially numbered, opaque, sealed envelopes. 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. Protocol first published: Issue 6, 2015Review first published: Issue 3, 2016. There was also some evidence of a reduction in the mean length of hospital stay in the honey group. Wound infection Study authors presented wound infection 'manifest on presence of foul smell' with 1/33 (3%) of participants classed as having an infected wound in the zinc oxide mesh group compared with 8/31 (26%) in the placebo group: RR 0.12, 95% CIs 0.02 to 0.89. We have presented summary data but it is not clear from the report that all wounds healed and thus not clear that the mean is a valid measure of healing here. Eleven trials with a total of 886 participants were included. One reason for allowing a wound to heal by secondary intention after surgery is that the risk of infection in that wound is thought to be high. These analyses would have included only studies assessed as having low risk of bias in all key domains, namely, adequate generation of the randomisation sequence, adequate allocation concealment and blinding of outcome assessor for the estimates of treatment effect. Costs associated with resource use (mean cost per participant included nursing time for dressing changes and cost of dressing): The mean cost of the treatment in the iodine mesh group was EUR 287 compared with EUR 268 in the alginate mesh group. However, assessing risk of bias relies on good quality reporting of methods in study papers and this was limited in most of the eleven included studies. Sometimes, using an ointment to treat a skin . Povidone-iodine soaks for hand abscesses: a prospective randomized trial. Downgraded twice due to imprecision with 95% CIs for risk of wound infection in the iodine group ranging from a reduction in risk of 85% to an increase risk of 476% so crossing a RR of 1 and the estimate comes from a single small study with 71 participants (OIS = 2070). Participants lost to followup were censored at the date of last contact to the investigators. The search for this review returned 3928 citations 10 further citations were found from screening related systematic reviews and bibliographies. National Institute for Health and Care Excellence. Only two of the studies in our review were published before the Vermeulen review (Fernandez 2002; Schmidt 1991); Schmidt 1991 was included by the Vermeulen 2004 review but this did not identify Fernandez 2002. Where measures of variance were missing these were calculated (Higgins 2011a) or study authors contacted where possible. Time to wound healing Mean timetohealing data presented but not all wounds healed. Gupta PJ, Heda PS, Kalaskar S, Tamaskar VP. 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. It is common to have data missing from trial reports. In: Higgins JPT, Green S (editors). The quality of a body of evidence involves consideration of withintrial risk of bias (methodological quality), directness of evidence, heterogeneity, precision of effect estimates and risk of publication bias (Schnemann 2011b). Was the allocation sequence randomly generated? We did not downgrade for unclear risk of bias assessments. If studies had appeared appropriately similar in terms of wound type and location, intervention type and antibacterial agent, duration of treatment and outcome assessment, we would have considered clinical and methodological heterogeneity and undertaken pooling. Unclear:Insufficient information about the sequence generation process to permit judgement of low or high risk of bias. In: Higgins JPT, Green S (editors). Chapter 9: Analysing data and undertaking meta-analyses. Low risk of bias:The study appears to be free of other sources of bias. Cochrane Handbook for Systematic Reviews of Interventions. Analysis 7.1. Comparison 1: Polyvidone iodineimpregnated mesh compared with alginate mesh, Outcome 3: Mean number of dressing changes. (n = 50), Quote: when purulent fluid was confirmed at the time of debridement, patients were randomized via a computergenerated schedule. For continuous outcome data, plausible effect size (difference in means or standardised difference in means) among missing outcomes not enough to have a clinically relevant impact on observed effect size. It is thought that they may heal better if these populations are reduced by antibacterial agents. The prevalence of SSI was estimated at 5% of all surgeries in the UK and Ireland (Smyth 2008); this is likely to be conservative as many SSIs occur postdischarge from hospital (NICE 2008). Jo Dumville: conceived, designed and coordinated the review; extracted data; checked the quality of data extraction; analysed or interpreted data; undertook and checked quality assessment; performed statistical analysis; completed the first draft of the review; approved the final version prior to submission; secured funding; wrote to study authors / experts / companies; and is a guarantor of the review. Shackelford DP, Fackler E, Hoffman MK, Atkinson S. Use of topical recombinant human platelet-derived growth factor BB in abdominal wound separation, American Journal of Obstetrics and Gynecology. Topical applications broadly fall into two types: lotions used for wound irrigation or cleaning, or both, with a brief contact time (unless used as a pack/soak), and products which are in prolonged contact with the wound such as creams, ointments and impregnated dressings. Quote: Triclosan and the hypochlorite solution were made indistinguishable (colour, texture fragrance) and were stored in similar bottles with the randomisation code. Gill Norman: conceived and designed the review; checked the quality of data extraction; undertook and checked quality assessment; performed part of data analysis or interpretation; performed statistical analysis; completed the first draft of the review; approved the final version prior to submission. Comparison 6: Iodine compared with Dermacyn, Outcome 1: Proportion of wounds healed. Rocio RodriguezLopez: designed the search strategy. The main difference between these ointments is that they have different ingredients. After each soak wounds were redressed with sterile gauze and an orthosis. Chapter 12: Interpreting results and drawing conclusions. HowellJones 2005) (see Description of the condition). Antimicrobial stewardship is a coordinated program that promotes the optimal selection, dosage and duration of antimicrobials, resulting in improved patient outcomes, reduced microbial resistance, and decreased spread of infections caused by multidrug-resistant organisms (1). Coello R, Charlett A, Wilson J, Ward V, Pearson A, Borriello P. Adverse impact of surgical site infections in English hospitals, Defined and refined: criteria for identifying wound infection revisited, Aloe vera for treating acute and chronic wounds. The site is secure. Warnings Follow all directions on your medicine label and package. Pain scores were taken daily preferably after defecation. Risk of bias assessments are summarised in Figure 2 and Figure 3. In cluster randomised trials, particular biases to consider include: (i) recruitment bias; (ii) baseline imbalance; (iii) loss of clusters; (iv) incorrect analysis; and (v) comparability with individually randomised trials. 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