***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
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    ***EXAMPLES*** 
    Input: Honey is known , since antiquity , as an effective wound dressing . Emergence of resistant strains and the financial burden of modern dressings , have revived honey as cost-effective dressing particularly in developing countries . Its suitability for all stages of wound healing suggests its clinical effectiveness in diabetic foot wound infections . Thirty infected diabetic foot wounds were r and omly selected from patients presenting to Surgery Department , Suez Canal University Hospital , Ismailia , Egypt .  Honey dressing was applied to wounds for 3 months till healing , grafting or failure of treatment . Changes in grade and stage of wounds , using University of Texas Diabetic Wound Classification , as well as surface area were recorded weekly . Bacterial load was determined before and after honey dressing .  Complete healing was significantly achieved in 43.3 % of ulcers . Decrease in size and healthy granulation was significantly observed in another 43.3 % of patients . Bacterial load of all ulcers was significantly reduced after the first week of honey dressing .  Failure of treatment was observed in 6.7 % of ulcers . This study proves that commercial clover honey is a clinical and cost-effective dressing for diabetic wound in developing countries . It is omnipresence and concordance with cultural beliefs makes it a typical environmentally based method for treating these conditions Aims /hypothesisThe aim of the present study was to investigate re source utilisation and associated costs in patients with diabetic foot ulcers and to analyse differences in re source utilisation between individuals with or without peripheral arterial disease ( PAD ) and /or infection . Methods Data on re source utilisation were collected prospect ively in a European multicentre study . Data on 1,088 patients were available for the analysis of re source use , and data on 821 patients were included in the costing analysis . Costs were calculated for each patient by multiplying the country-specific direct and indirect unit costs by the number of re sources used from inclusion into the study up to a defined endpoint . Country-specific costs were converted into purchasing power st and ards . Results Re source use and costs varied between outcome groups and between disease severity groups . The highest costs per patient were for hospitalisation , antibiotics , amputations and other surgery . All types of re source utilisation and costs increased with the severity of disease . The total cost per patient was more than four times higher for patients with infection and PAD at inclusion than for patients in the least severe group , who had neither . Conclusions /interpretationImportant differences in re source use and costs were found between different patient groups . The costs are highest for individuals with both peripheral arterial disease and infection , and these are mainly related to substantial costs for hospitalisation . In view of the magnitude of the costs associated with in-hospital stay , reducing the number and duration of hospital admissions seems an attractive option to decrease costs in diabetic foot disease OBJECTIVE To compare the efficacy and tolerability of a new ionic silver alginate matrix ( Askina Calgitrol Ag ) with that of a st and ard silver-free alginate dressing ( Algosteril ) . METHOD Patients with locally infected chronic wounds ( pressure ulcers , venous or mixed aetiology leg ulcers , diabetic foot ulcers ) or acute wounds were eligible for this prospect i ve , open-label , controlled and r and omised trial . Patients were r and omised to receive one of the two dressings for a two-week period . Criteria of efficacy were based on the evolution , from day 1 to day 15 , of local signs of infection using a clinical score ranging from 0 to 18 , and the evolution of the bacteriological status for each wound . The latter was determined by ( blind ) bacteriological examinations of results obtained from two biopsies performed at days 1 and 15 . A three-point scale ( deterioration , unchanged , improvement ) was also used . Acceptability , usefulness and tolerance were also assessed . RESULTS Forty-two patients ( 20 women and 22 men , 68.9 + /- 18.8 and 66.5 + /- 15.7 years old respectively ) were r and omly assigned to receive either Askina Calgitrol Ag ( n=20 ) or Algosteril ( n=22 ) . Most had chronic wounds such as pressure ulcers ( 57 % ) or venous or mixed aetiology leg ulcers and diabetic foot ulcers ( 29 % ) ; few had acute wounds ( 14 % ) .  Clinical scores of infection were comparable in both groups at inclusion , 8.9 + /- 2.4 and 8.6 + /- 3.2 in the Askina Calgitrol Ag group and the Algosteril group respectively ( not significant ) , but decreased significantly in both groups at day 15 , 3.8 + /- 2.9 in the Askina Calgitrol Ag group ( p=0.001 ) and 3.8 + /- 3.4 in the Algosteril group ( p=0.007 ) . There was no significant difference between the two groups at day 15 . Although there was also no significant difference in bacteriological status between the treatment groups , a trend in favour of Askina Calgitrol Ag was found for the relative risk of improvement , especially in patients who were not treated with antibiotics either at the beginning of the study or during it . No differences between groups were observed regarding local tolerance , acceptability and usefulness of the dressings . CONCLUSION The regression of local signs of infection , local tolerance , acceptability and usefulness were similar for the two dressings . However , Askina Calgitrol Ag improved the bacteriological status of the wounds . Further trials are required to show that it has a positive impact on the healing process AIMS To investigate the accuracy of the sequential combination of the probe-to-bone test and plain X-rays for diagnosing osteomyelitis in the foot of patients with diabetes . METHODS We prospect ively compiled data on a series of 338 patients with diabetes with 356 episodes of foot infection who were hospitalized in the Diabetic Foot Unit of La Paloma Hospital from 1 October 2002 to 31 April 2010 . For each patient we did a probe-to-bone test at the time of the initial evaluation and then obtained plain X-rays of the involved foot . All patients with positive results on either the probe-to-bone test or plain X-ray underwent an appropriate surgical procedure , which included obtaining a bone specimen that was processed for histology and culture . We calculated the sensitivity , specificity , predictive values and likelihood ratios of the procedures , using the histopathological diagnosis of osteomyelitis as the criterion st and ard . RESULTS Overall , 72.4 % of patients had histologically proven osteomyelitis , 85.2 % of whom had positive bone culture . The performance characteristics of both the probe-to-bone test and plain X-rays were excellent . The sequential diagnostic approach had a sensitivity of 0.97 , specificity of 0.92 , positive predictive value of 0.97 , negative predictive value of 0.93 , positive likelihood ratio of 12.8 and negative likelihood ratio of 0.02 . Only 6.6 % of patients with negative results on both diagnostic studies had osteomyelitis . CONCLUSIONS Clinicians seeing patients in a setting similar to ours ( specialized diabetic foot unit with a high prevalence of osteomyelitis ) can confidently diagnose diabetic foot osteomyelitis when either the probe-to-bone test or a plain X-ray , or especially both , are positive OBJECTIVES To determine the comparative effectiveness and cost-effectiveness of three dressing products , N-A , Inadine and Aquacel , for patients with diabetic foot ulcers , as well as the feasibility and consequences of less frequent dressing changes by health-care professionals . DESIGN A multicentre , prospect i ve , observer-blinded , parallel group , r and omised controlled trial , with three arms . SETTING Established expert multidisciplinary clinics for the management of diabetic foot ulcers across the UK . PARTICIPANTS Patients over age 18 with type 1 or type 2 diabetes with a chronic ( present for at least 6 weeks ) full-thickness foot ulcer ( on or below the malleoli ) not penetrating to tendon , periosteum or bone , and with a cross-sectional area between 25 and 2500 mm(2 ) . INTERVENTIONS Participants were r and omised 1:1:1 to treatment with one of N-A ( a non-adherent , knitted , viscose filament gauze ) , Inadine ( an iodine-impregnated dressing ) , both traditional dressings , or Aquacel , a newer product . MAIN OUTCOME MEASURES The primary outcome measure was the number of ulcers healed in each group at week 24 . Secondary measures included time to healing , new ulcerations , major and minor amputations , and episodes of secondary infection . RESULTS A total of 317 patients were r and omised . After 88 withdrawals , 229 remained evaluable . A greater proportion of smaller ( 25 - 100 mm(2 ) ulcers healed within the specified time ( 48.3 % versus 37.3 % ; p = 0.048 ) . There was , however , no difference between the three dressings in terms of percentage healed by 24 weeks , or in the mean time to healing , whether analysed on the basis of intention to treat ( Inadine 44.4 % , N-A 38.7 % , Aquacel 44.7 % ; not significant ) or per protocol ( Inadine 55.2 % , N-A 59.4 % , Aquacel 63.0 % ; not significant ) . There was no difference in the quality of healing , as reflected in the incidence of recurrence within 12 weeks . Likewise , there was no difference in the incidence of adverse events , although a greater proportion of those r and omised to the non-adherent dressings were withdrawn from the study ( 34.9 % versus 29.1 % Aquacel and 19.4 % Inadine ; p = 0.038 ) . The only statistically significant difference found in the health economic analysis was the cost associated with the provision of dressings ( mean cost per patient : N-A 14.85 pounds , Inadine 17.48 pounds , Aquacel 43.60 pounds ) . The higher cost of Aquacel was not offset by the fewer dressings required . There was no difference in measures of either generic or condition-specific measures of quality of life . However , there was a significant difference in the change in pain associated with dressing changes between the first and second visits , with least pain reported by those receiving non-adherent dressings ( p = 0.012 ) . There was no difference in the costs of professional time , and this may relate to the number of dressing changes undertaken by non-professionals . Fifty-one per cent of all participants had at least one dressing change undertaken by themselves or a non-professional carer , although this ranged from 22 % to 82 % between the different centres . CONCLUSIONS As there was no difference in effectiveness , there is no reason why the least costly of the three dressings could not be used more widely across the UK National Health Service , thus generating potentially substantial savings . The option of involving patients and non-professional carers in changing dressings needs to be assessed more formally and could be associated with further significant reductions in health-care costs . TRIAL REGISTRATION Current Controlled Trials IS RCT N78366977 OBJECTIVE To evaluate the efficacy of manufactured shoes specially design ed for diabetic patients ( Podiabetes by Buratto Italy ) to prevent relapses of foot ulcerations . RESEARCH DESIGN AND METHODS A prospect i ve multicenter r and omized follow-up study of patients with previous foot ulcerations was conducted . Patients were alternatively assigned to wear either their own shoes ( control group , C ; n = 36 ) or therapeutic shoes ( Podiabetes group , P ; n = 33 ) . The number of ulcer relapses was recorded during 1-year follow-up . RESULTS Both C and P groups had similar risk factors for foot ulceration ( i.e. , previous foot ulceration , mean vibratory perception threshold > 25 mV ) . After 1 year , the foot ulcer relapses were significantly lower in P than in C ( 27.7 vs. 58.3 % ; P = 0.009 ; odds ratio 0.26 [ 0.2–1.54 ] ) . In a multiple regression analysis , the use of therapeutic shoes was negatively associated with foot ulcer relapses ( coefficient of variation = −0.315 ; 95 % confidence interval = −0.54 to −0.08 ; P = 0.009 ) . CONCLUSIONS The use of specially design ed shoes is effective in preventing relapses in diabetic patients with previous ulceration OBJECTIVE A limited number of clinical trials have shown that the total contact cast ( TCC ) is an effective treatment in neuropathic , noninfected , and nonischemic foot ulcers . In this prospect i ve data collection study , we assessed outcome and complications of  TCC treatment in neuropathic patients with and without peripheral arterial disease ( PAD ) or ( superficial ) infection . RESEARCH DESIGN AND METHODS Ninety-eight consecutive patients selected for casting were followed until healing ; all had polyneuropathy , 44 % had PAD , and 29 % had infection . Primary outcomes were percentage healed with a cast , time to heal , and number of complications . RESULTS Ninety percent of all nonischemic ulcers without infection and 87 % with infection healed in the cast ( NS ) . In patients with PAD but without critical limb ischemia , 69 % of the ulcers without infection and 36 % with infection healed ( P < 0.01 ) . In multivariate analyses , PAD , infection , and heel ulcers were associated with a lower percentage healed ( all P < 0.05 ) . Median duration of cast treatment was 34 
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CONCLUSIONS Whereas these guidelines have addressed five key areas in the care of DFUs , they do not cover all the aspects of this complex condition .