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PubMedDate not supplied

Catheter sepsis during parenteral nutrition: the safety of long-term OpSite dressings.

A prospective controlled study of the safety of various catheter dressing protocols was carried out in 168 patients receiving parenteral nutrition via an infraclavicular central venous catheter. Four protocols were compared: 36 patients received gauze dressings changed three times per week; 31 received OpSite dressings changed every 7th day (OpS-7), 32 received OpSite changed every 10th day (OpS-10), and 69 received OpSite changed twice weekly (OpS-ICU). Mean duration of parenteral nutrition was approximately 2 weeks and all groups were well matched except that OpS-ICU patients suffered more frequently from an acute illness. Catheter-related sepsis was identified by clinical signs of systemic sepsis, positive peripheral venous blood and catheter-tip cultures and/or defervescence of fever after catheter removal. Catheter-related sepsis rates were low in all groups: 1/36 for Gauze, 0/31 for OpS-7, 1/32 for OpS-10, and 2/69 for OpS-ICU. Septicemia attributable to causes apart from catheter sepsis occurred in two, two, three, and four patients, respectively. Bacterial colonization of skin beneath OpSite was no more common in the OpS-10 than in the other groups. Signs of inflammation at catheter insertion sites were common in all groups but did not relate closely to skin colonization. OpSite can be safely applied to central venous catheters inserted under strict aseptic conditions, even in patients with open septic drainage. Dressings can be left in place for 7 days with a margin of safety lasting to 10 days, thus saving on cost of materials and nursing time.

Adult↗
PubMed1994

Adaptive transparent film dressings.

Transparent film dressings have many of the attributes of the ideal wound dressing. However, currently available film dressings are deficient in their ability to handle varying levels of wound exudate. The permeability of polymeric films to water vapor is discussed and techniques are described to produce films in which the moisture vapor permeability is a function of the moisture in the environment. Illustrations are provided showing the variation of permeability with relative humidity and water contact. The unique properties of coextruded films are illustrated and the responsiveness of such a film dressing to varying conditions at the wound are discussed.

Adhesives↗
PubMedDate not supplied

Restoring dressing independence in persons with Alzheimer's disease: a pilot study.

PURPOSE: Well meaning nursing facility staff may compromise the independence of older adults with dementia by performing activities of daily living for residents. We assessed the impact of teaching certified nursing assistants (CNAs) to use a graduated prompting procedure to increase dressing independence of persons with dementia. DESIGN AND METHODS: This study was conducted in a seven-bed dementia care unit. Three residents and two CNAs participated in the study. We used a repeated-measures experimental design to evaluate the effect of a training workshop for CNAs on a strategy for increasing resident engagement in self-care activities. RESULTS: During a series of baseline observations, we found that CNAs typically dressed residents with minimal resident involvement. Results showed that, following the training workshop for CNAs, resident independence in dressing increased and range of motion improved. IMPLICATIONS: CNAs can provide restorative care that increases dressing independence and range of motion of older adults with dementia.

Activities of Daily Living↗
PubMed2005

Cost effectiveness of using carboxymethylcellulose dressing compared with gauze in the management of exuding venous leg ulcers in Germany and the USA.

OBJECTIVE: To assess the cost effectiveness of using carboxymethylcellulose dressing (CMCD; Aquacel Hydrofiber) compared to gauze in the management of exuding venous leg ulcers in Germany and the USA. DESIGN AND SETTING: This was a modelling study performed from the perspective of payers (i.e. the sickness funds in Germany and the community sector in the USA). METHODS: Clinical outcomes attributable to managing exuding venous leg ulcers were obtained from the published literature in the English language. These data were combined with resource utilisation estimates derived from a panel of clinicians enabling us to construct two decision models depicting the management of venous leg ulcers with CMCD or gauze over 18 weeks in Germany and the USA. The models were used to estimate the cost effectiveness of CMCD compared to gauze in the management of exuding venous leg ulcers in both countries. MAIN OUTCOME MEASURES AND RESULTS: Starting treatment with CMCD instead of gauze in both Germany and the USA is expected to heal 30% of ulcers within 18 weeks compared to 13% with gauze (p = 0.003). The healthcare cost of starting treatment with CMCD or gauze in Germany is expected to be Euro2020 and Euro 2654 respectively at 18 weeks. Additionally, the healthcare cost of starting treatment with CMCD or gauze in the USA is expected to be $3797 and $5288 respectively at 18 weeks. Hence, using CMCD instead of gauze is expected to increase the probability of healing within 18 weeks by 130% and reduce healthcare costs by at least 24%. The healthcare cost of managing CMCD-treated patients was less than that of gauze-treated patients in both countries due to decreased nursing and physician costs associated with a lower frequency of CMCD dressing changes compared to gauze dressing changes. If it were assumed that treatment with gauze in both countries heals 30% of ulcers within 18 weeks (i.e. is identical to CMCD), then the expected healthcare cost of using gauze would be reduced by only 3% (from Euro2654 to Euro2562 in Germany and from $5288 to $5148 in the USA). CONCLUSION: Within the limitations of our model, starting management of an exuding venous leg ulcer with CMCD instead of gauze is the cost effective strategy in both Germany and the USA. Moreover, the purchase price of a leg ulcer dressing should not be used as an indication of the cost effectiveness of a given method of care.

Bandages↗
PubMed2002

Achieving value for money? Evaluation of two wound dressings.

During the past three decades there has been dramatic increase in spending on wound dressing products in the UK. While the rise in costs in many ways reflects a rise in the performance of the products purchased, it remains vital that nurses charged with prescribing such products achieve value for money. This article describes a small study of the use of a primary dressing and a secondary wound dressing in 12 patients, representing a range of wounds. In each case a more expensive alternative would normally have been used. In each case observed, involving both primary and secondary dressings, no deficit in clinical performance was noted but potential cost benefits were identified. The authors conclude that these initial findings are encouraging and further studies are required to address this important area of wound management.

Acute Disease↗
PubMedDate not supplied

Comparing hydrocolloid dressings in management of exuding wounds.

Hydrocolloid dressings have been widely used since the late 1970s. This article compares two hydrocolloid dressings--3M Tegasorb dressing and ConvaTec's Granuflex (E)--and highlights their similarities and differences when used in the clinical situation. Both hydrocolloids were reported to perform favourably by users in most situations. 3M Tegasorb dressing becomes transparent in use and this function was rated highly by users compared to the opaque Granuflex (E). In addition, 3M Tegasorb showed better adherence. One limitation of the study was the small number of patients studied. Weekly assessments yielded 90 data sets in total.

Adult↗
PubMedDate not supplied

A practical approach to dressing wounds in difficult positions.

Despite the availability of an increasing number of innovative dressing products, many patients' wounds remain a challenge to dress in practice. However, the creative use of widely available products and other resources can help to address some of the difficulties that are regularly encountered. If different sizes of dressing (to allow for cutting and shaping) or more innovatively shaped products (which may be more expensive per item) are used, this can result in a better dressing fit and therefore increase product wear time which is both clinically effective and cost-effective. When a good solution is found for dealing with certain wound types then great benefit can be gained from publishing the information to prevent others from struggling to overcome the same difficulties.

Bandages↗
PubMedDate not supplied

Peripheral i.v. cannula dressings: advantages and disadvantages.

There are many peripheral intravenous cannula dressings being used throughout the country. This article is a review of these dressings and looks at those used in the authors' trust as well as other products on the market. The article gives an overview of the advantages and disadvantages of the different dressings, including costs, that allow medical and nursing staff to make an informed choice about the type of dressing they use. The authors felt, given all the evidence, the traditional method of using gauze, tape or mefix was no longer acceptable practice.

Bandages↗
PubMedDate not supplied

Leg ulcers and the Urgocell Non-Adhesive wound dressing.

The objectives of this clinical trial were to evaluate the efficacy and tolerance of the Urgocell Non-Adhesive (NA) dressing in the local management of venous or mixed leg ulcers. The study was a non-comparative, prospective, multicentre (15 centres) phase III, clinical trial. The studied population was composed of non-immunodepressed adults presenting a venous or mixed leg ulcer, uninfected, non-cancerous, present for less than 18 months. Patients were followed up for 6 weeks with a weekly visit, including a clinical examination, area tracings and photographs. Evaluation by nursing staff and patients was performed at each dressing changed. Forty-three patients were included, presenting a leg ulcer with a mean surface area of 10.7 cm2. The surface area was reduced by a mean of 38% after 6 weeks of treatment. Four local adverse events were deemed to be related to the tested treatment and acceptability was noted very good for patients and nursing staff. The Urgocell NA dressing, combined with compression therapy, promoted the healing of the chronic wounds under study. The good tolerance and acceptability of the tested dressing were greatly appreciated.

Aged↗
PubMedDate not supplied

Evaluation of Biatain Soft-Hold foam dressing.

Foam dressing products were introduced in the 1970s and quickly became accepted in clinical practice due to a wide range of benefits. Today, various foam dressings are available on the market. They can appear rather similar, but may well have different performance characteristics. A well-established product is Biatain foam dressing, which was introduced in 1998 and quickly became popular due to its superior exudate management properties. The aim of this article is to describe a recent innovation in the Biatain dressing range, Biatain Soft-Hold (Coloplast A/S), and summarize some of the evidence that supports it. The new product feature consists of a soft and skin-friendly adherent layer covering less than 50% of the foam surface, thus providing a third hand in application and atraumatic removal while maintaining superior exudate management.

Bandages↗
PubMed1998

A povidone-iodine medicated dressing.

The iodine content of a tulle gras-type dressing medicated with povidone-iodine (Poviderm) has been measured and its potential efficacy in wound care explored by means of laboratory models. Simple tests demonstrated the ready diffusibility and antibacterial activity of povidone-iodine. Wound models clearly showed that the limiting factor for useful dressing life is extent of exudation. It seems likely that this dressing would provide good topical antibacterial prophylaxis and may reduce the bacterial burden of colonised wounds. The dressing should help contain wound bacteria and thus assist infection control.

Anti-Bacterial Agents↗
PubMed1999

A non-comparative multi-centre clinical evaluation of a new hydropolymer adhesive dressing.

This study evaluates the performance of a new hydropolymer adhesive dressing in the treatment of chronic or acute wounds, in the presence of blood and/or low levels of exudate, in 74 patients, in a five-site multi-centre non-comparative clinical trial of four weeks' duration. The primary efficacy variable was defined as the incidence of central island dressing adherence to the wound bed in the final stages of healing. The hydropolymer dressing performed extremely well with 98.4% (240 out of 244) of the dressings not adhering to the wound bed.

Acute Disease↗
PubMed2000

Investigating the bacterial barrier properties of four contemporary wound dressings.

The ability of four wound dressings (CombiDERM, Allevyn Hydrocellular, Tegaderm and Tielle) to resist penetration of methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus faecalis and Pseudomonas aeruginosa was investigated in vitro using a dedicated test apparatus. With the exception of Tielle, each dressing prevented bacterial transmission over an 11-day challenge period. When both the wound contact surface and the external surface of Tielle were directly challenged with a bacterial suspension, penetration of the dressing was observed within three to five days. The breakdown of its outer membrane could explain the inability of Tielle to maintain a barrier to the passage of the test bacteria used in this wound model. On the basis of these data, CombiDERM, Allevyn Hydrocellular and Tegaderm dressings may facilitate infection control by acting as a physical barrier to the transmission of potentially pathogenic and antibiotic-resistant wound bacteria. However, further research is urgently required to determine whether or not the same results are observed in clinical practice.

Bacterial Infections↗
PubMed2001

The influence of four wound dressings on the kinetics of human walking.

OBJECTIVES: This in vivo study (the second phase of a research project first described in the February issue of Journal of Wound Care) reports on the influence of various wound dressings on the dynamics of human walking. Allevyn (Smith and Nephew), Biatain (Coloplast), Lyofoam (Seton Scholl) and Tielle (Johnson and Johnson) were used in this study. The investigation aimed to assess the ground reaction forces in the foot while the dressings were applied to the plantar surface of the foot. METHOD: A strain gauge force plate system was used. Six subjects with 'normal' gait patterns and no foot pathology were recruited into the study. Eight trials were recorded for each subject. The peak push-off force, in the vertical component of the ground reaction force, and the maximum braking and propulsive forces in the medial-lateral component of the ground reaction force were estimated and reported. RESULTS: Among the various dressings tested, Allevyn performed closest to barefoot in the peak push-off force and demonstrated an increased braking force at the deceleration point in the gait cycle. CONCLUSION: These findings may have implications for clinicians selecting wound dressings for the treatment of certain foot ulcerations. However, further clinical research is warranted in this area.

Bandages↗
PubMed2003

The link between the peel force of adhesive dressings and subjective discomfort in volunteer subjects.

OBJECTIVE: The study compared the level of discomfort experienced by healthy volunteers on the removal of a range of adhesive wounds. METHOD: This was an open, within subject comparative study of six adhesive dressings in 24 volunteers. The test site was the lower back. Allocation of test materials to the test sites was randomised. The peel force of removal was recorded after 24 hours of application using a device that removed the dressing at a constant speed and angle to the skin surface. The discomfort experienced at each removal was assessed by the subjects themselves using an electronic visual analogue scale. RESULTS: Overall, Mepilex Border was given a significantly lower discomfort score (p < or = 0.01) by the subjects than the other dressings. There were no clear differences between the five other products tested. Tielle and Allevyn Adhesive had significantly higher (p < or = 0.05) peel force than the other products. Mepilex Border caused less discomfort on removal than Duoderm Extra Thin, Biatain and Versiva, even though the peel force was similar. Tielle and Allevyn had higher peel force, but the levels of discomfort were not significantly higher for these products. CONCLUSION: It may be that the level of discomfort experienced by subjects on removal of an adhesive dressing is not entirely dependent on the peel force and that other aspects of the interaction of the skin surface and adhesive play a role.

Adhesives↗
PubMed2003

Clinical performance of a new silver dressing, Contreet Foam, for chronic exuding venous leg ulcers.

OBJECTIVE: This study aimed to evaluate the safety and performance of a new sustained silver-releasing dressing, Contreet Foam (Coloplast A/S), in the treatment of moderately to highly exuding chronic venous leg ulcers in which healing is delayed due to the presence of bacteria. METHOD: The clinical performance of Contreet Foam was studied for four weeks in 25 patients with moderately to highly exuding delayed-healing venous leg ulcers. Healing was assessed on a weekly basis with reference to the wound-bed tissue composition, degree of odour and pain, dressing performance and the dressing's effect on the peri-ulcer area. Blood samples were analysed for silver content. RESULTS: Twenty-three out of 25 patients completed the study. One ulcer healed and no wound infections occurred during the study period. A mean 56% reduction in ulcer area (from 15.6 to 6.9 cm2) was recorded during the four weeks, and there was a mean 25% reduction in granulation tissue from dull to healthy after one week. Wound odour reduced significantly after one week. Mean dressing wear time was 3.1 days, and there were only minimal incidences of leakage. Serum silver levels did not exceed reference values. CONCLUSION: Contreet Foam was found to be safe and performed well when used in the treatment of delayed-healing chronic venous leg ulcers, combining effective antibacterial properties with excellent exudate management. DECLARATION OF INTEREST: This study was supported by Coloplast A/S, Humlebaek, Denmark.

Aged↗
PubMed2004

Safety and performance of a new non-adhesive foam dressing for the treatment of diabetic foot ulcers.

OBJECTIVE: This study aimed to document the safety and performance of a new non-adhesive foam dressing (Biatain Non-adhesive Dressing, Coloplast A/S) in the treatment of established foot ulcers in patients with diabetes. METHOD: This was an open non-comparative prospective study. Participants had an ankle brachial pressure index score of over 0.4 (neuro-ischaemic) and an ulcer bigger than 1 cm2 and less than 8 cm2 in any direction. The treatment period was six weeks. RESULTS: Thirty-five out of 37 patients completed the study. The mean wound area reduced from 5.4 cm2 to 2.5 cm2. Relative wound area reduced from 100% at baseline to 40% at week 6. 'Wearing comfort' improved throughout the study (p = 0.039). Maceration remained stable or improved. None of the four reported adverse events were device related. CONCLUSION: This study demonstrates that treatment of diabetic foot ulcers with Biatain Non-adhesive Dressing results in considerable wound area reduction and prevents any deterioration in maceration. The dressing is safe and effective in the management of these ulcers.

Activities of Daily Living↗
PubMed2004

The release of zinc ions from and cytocompatibility of two zinc oxide dressings.

OBJECTIVE: These in vitro studies examined the release of zinc ions from and the response of human dermal fibroblasts to two zinc oxide-medicated dressings: one with zinc oxide in an ointment base and one using polyvinylpyrrolidone (PVP), a hydrophilic polymer for the binding of zinc oxide particles. METHOD: Zinc release from the dressings in buffered-saline (pH 7.4) was studied through a high-pore-density membrane (pore size, 0.40 microm) in a two-compartment model at 37 degrees C for three hours. Cytocompatibility of the dressings and 500 micromol/l of zinc ions was assessed using the MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) assay after exposure to monolayers of confluent normal human dermal fibroblasts to the dressing extracts for four hours. RESULTS: The zinc release rate from PVP-bound zinc oxide was more than two-fold higher than from zinc oxide in the ointment. Extract of the zinc oxide ointment, containing 150 micromol/l solubilised zinc, elicited a cytotoxic reaction, while the zinc oxide-PVP extract, containing 410 micromol/l solubilised zinc, and 500 micromol/l zinc chloride were non-cytotoxic to the fibroblasts. CONCLUSION: Zinc release in a simulated wound milieu appears to be inhibited when zinc oxide is incorporated in a lipophilic vehicle. It is hypothesised that the ointment vehicle induced cytotoxicity rather then the solubilised zinc oxide. DECLARATION OF INTEREST: None.

Administration, Cutaneous↗