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Interactive wound dressings. A practical guide to their use in older patients.

The properties of an ideal wound dressing do not change with the introduction of new types of wound dressing, but the range of effects on wound healing increases. The number of dressings available is enormous, and the choice between them is often bewildering. Because there is still no ideal dressing for all wound types, it is necessary to get to know a few well, and to avoid switching to new therapies solely on the basis of anecdotal reports. The adoption of novel dressings should be based on scientific evidence. At present, dressings are still chosen on the basis of local traditions and personal empirical experience, together with evidence from the few double-blind, placebo-controlled trials that have been performed. In the management of ulcers, a particular wound management plan should not be changed if the ulcer being treated is decreasing in size and the patient is comfortable. The dressing should be chosen with care. The type of chronic ulcer and its appearance, the amount of exudate and the presence or absence of pain all assist in the selection of an appropriate wound dressing product. Quality-of-life aspects are important. In the elderly, good quality of life may not necessarily require complete ulcer healing, although this is naturally desirable. Dressing changes should be minimised and the ulcer should be kept moist and the surrounding skin dry. The high cost of interactive dressings is a potential disadvantage of their use. However, if the wound can be re-dressed at longer intervals and if healing occurs more quickly, their use may be cost effective and associated with less pain and a better quality of life.

Aged↗

Effects of a silicone-coated polyamide net dressing and calcium alginate on the healing of split skin graft donor sites: a prospective randomised trial.

An open randomised prospectively controlled trial was performed to assess the healing efficacy, slippage rate and degree of discomfort on removal of calcium alginate and a silicone-coated polyamide net dressing on split skin graft donor sites. Sixteen patients were randomised to the calcium alginate group and 14 to the silicone-coated group. The donor sites were assessed at days 7, 10, 14 and up to day 21. The mean time to healing in the calcium alginate group was 8.75 +/- 0.78 days (range 7 to 14 days) compared to 12 +/- 0.62 days (range 7 to 16 days) for the silicone-coated group (p < 0.01). Although more silicone-coated dressings slipped (5 versus 1), the difference was not statistically significant. Pain during the first dressing change was assessed using a visual analogue pain scale. Although no significant differences were found between the groups, it was necessary to change the dressing protocol in the silicone-coated arm of the trial after entering the first two patients. Overlaid absorbent gauze adhered to the donor site through the fenestrations in the dressing necessitating the placement of paraffin gauze between the experimental dressing and the overlying cotton gauze. There was one infection in the study, occurring in the alginate group. Based on these results we recommend calcium alginate as the dressing of choice for split skin graft donor sites.

Adult↗

Effects of a normothermic dressing on pressure ulcer healing.

OBJECTIVE: To determine the effects of radiant heat applied through a semiocclusive dressing on periwound skin temperature and wound healing. DESIGN: Before-after trial. SETTING: Spinal cord injury and geriatric units of a VA medical center. PATIENTS: Twenty inpatients with 21 Stage III and IV pressure ulcers. INTERVENTIONS: A semiocclusive, heated dressing was applied to 15 Stage III and IV pressure ulcers for 4.5 hours, Monday through Friday, for 4 consecutive weeks. The dressing emitted heat at 38.0 degrees C for 2 60-minute periods daily. At all other times, the wounds received only standard wound care. Six wounds in a separate control group received only standard wound care during the same 4-week period. MAIN OUTCOME MEASURES: Periwound skin temperature within and adjacent to the dressing and measurements of wound surface area. MAIN RESULTS: Mean skin temperatures inside and outside the heated dressing increased by 0.97 degree C and 1.08 degrees C (P < .05), respectively, from baseline values. Wounds treated with standard care plus the heated dressing underwent a statistically significant reduction in mean surface area of 60.73%. Wounds in the control group underwent a statistically insignificant reduction in mean surface area of 19.24%. CONCLUSION: Wounds treated with a radiant heat dressing healed significantly faster than wounds that received only standard care. There were no adverse effects from the radiant heat dressing.

Adult↗

Control of experimental burn wound infections: comparative delivery of the antimicrobial agent (silver sulfadiazine) either from a cream base or from a solid synthetic dressing.

This report demonstrates prolonged effective release of silver sulfadiazine (AgSD) to experimental burns in rats from a solid dressing by mixtures of polyethylene glycol-400 and poly-2-hydroxyethyl methacrylate. The synthetic dressing, incorporating the antimicrobial drug, may be formed either directly on the burn wound or prepared as a preformed sheet and applied to the wound after it was contaminated with bacteria. The level of silver in the blood following treatment of the burn wound with topical AgSD (Silvadene, Marion Labs) is significantly less when the drug is presented in the dressing than when the drug is applied in a cream base; the concentration of the sulfadiazine moiety in the blood is similar for the two drug preparations. Improved survival of the burned and contaminated rats and reduced nursing care were observed in the burned animals when the synthetic dressing was used to deliver the drug relative to the results when the AgSD was applied in a cream base by standard procedures.

Animals↗

[Experimental and clinical rationale for the use of atraumatic activated carbonic dressing in the treatment of burns].

Tests for functional properties of dressing material showed that in the degree of its atraumatic effect activated carbonated cloth takes an intermediate place between hydrophilic and hydrophobic materials. Atraumatic carbonated cloth is easily wettable with blood and drug solutions but absorbs them poorly. However, it exceeds medical gauze in the amount and fine mechanism of nitrafurazone adsorption whose molecules are chemically bound on the carbon fibre. In experiments on animals with deep burn wounds covered with carbonated dressings stimulation of regeneration processes was revealed morphologically. Clinical use of carbonated dressings for burn wounds is particularly effective in the early stages of the burn disease.

Absorption↗

A comparison of the use of polythene sheet and Jelonet as temporary dressings for excised wounds.

This paper reports our experience of the use of polythene sheet as a temporary dressing for excised wounds. A prospective randomised double-blind trial was conducted to see whether or not polythene dressing was less painful to remove than our traditional dressing of Jelonet. Polythene was found to be less painful (p less than 0.01). Other advantages of the use of polythene are presented.

Adolescent↗

Immediate dressing of the burn wound--will it change its natural history?

Thirty deep dermal burns were inflicted on six domestic pigs. On the treated animals, the epidermis was removed and immediately replaced with Omiderm, Xeroform or Mettalin dressings. Burns in which the blister was left intact or not dressed after epidermis removal, served as controls. Macroscopic and microscopic assessment of the healing process was then carried out. Surprisingly, the no-epidermis controls healed somewhat faster than did the untreated controls (those with blister intact). On day 7, 83 per cent of the treated lesions showed initiation of epidermal regeneration, compared with 58 per cent in the no-treatment and no-epidermis controls. All dressing materials were found equal in this model, and differences between control and treatment groups were not significant after 12 days.

Animals↗

[Non pharmacological treatment of severe cutaneous infections: hyperbaric oxygen therapy, dressings and local treatments].

Beside conventional therapy, the management of necrotizing cellulitis and fasciitis is based on non-pharmacological treatments. Hyperbaric oxygen therapy and dressings are the most frequently used techniques. The usefulness of hyperbaric oxygen therapy is clearly demonstrated in experimental studies while the efficacy of this technique is poorly assessed in clinical practice. The French consensus conference has concluded to an adjuvant role of hyperbaric oxygen therapy combined to intensive care management, surgery and antibiotic therapy. Occlusive conventional dressings using humid or vaseline gauze dressings are largely used. Calcium alginate or silver coated dressings might be useful. In addition, vacuum-assisted closure therapy could be proposed in replacement of conventional dressings.

Bandages↗

Wound management with vacuum-assisted closure: experience in 51 pediatric patients.

BACKGROUND/PURPOSE: Soft tissue loss from infectious, vascular, and traumatic disorders often results in poor healing, painful wound care, and the need for repeated operations. This retrospective study evaluates a single-institutional experience with negative pressure therapy (NPT), using the vacuum-assisted closure (VAC) device in a group of children with diverse soft tissue problems. METHODS: The medical records of 51 patients treated with NPT from January 2000 to July 2003 were reviewed for demographics, diagnosis, duration of VAC therapy, wound closure, recurrent disease, and complications. RESULTS: Patients were classified by diagnosis: group 1: pilonidal disease (n = 21, primary = 6 and recurrent = 15); group 2: sacral and extremity ulcers (n = 9); group 3: traumatic soft tissue wounds (n = 9); and group 4: extensive tissue loss (n = 12) from the abdominal wall (n = 7), perineum (n = 2), thigh (n = 2), and axilla (n = 1). Group 1 had an average age of 16 years (range, 10-20 years), 67% were obese, and had an average length of follow-up of 13 months (range, 8-36 months). VAC was placed in the operating room in 95% with subsequent outpatient care that included dressing change 3 times weekly. Healing occurred in all patients with primary disease at an average of 37 days. For patients with recurrent disease, 12 healed at an average of 48 days and 3 developed recurrent sinuses. Group 2 was treated with VAC as a bridge to skin grafting or flap closure. All children in group 3 achieved healing without skin grafting at an average of 10 days and with acceptable cosmesis. Negative pressure therapy in group 4 was the only wound treatment in 10 patients and adjunctive to operative closure in 2. Complications from VAC occurred in 5 patients: retained sponge in 2 and device malfunction in 3. CONCLUSIONS: Negative pressure therapy offers a safe, cost-effective alternative to traditional complex wound care in children. Its advantages are less frequent dressing changes, outpatient management, resumption of daily activities including return to school, and a high degree of patient tolerance.

Adolescent↗

Biobrane--a useful adjunct in the therapy of outpatient burns.

Fifty-five patients with partial thickness burns ranging from 1% to 10% of their body surfaces have been treated with Biobrane (Woodroof Laboratories, Santa Ana, CA) dressings on an outpatient basis. This material is a biosynthetic skin prosthesis that was introduced commercially in 1979. Advantages of Biobrane over other conventional dressings in outpatient burn care have been the significant pain relief, reduced number of dressing changes, decreased patient visits, and satisfactory epithelization in 7 to 14 days, ease of application and removal, and cost effectiveness. The dressing must be placed on clean wounds judged to be partial thickness in depth. Topical antibiotics are unnecessary in the care of these patients.

Burns↗

Application of an in vitro model to evaluate bioadhesion of fibroblasts and epithelial cells to two different dressings.

The cellular component of a healing wound consists of many cell types and the environment in which these cells grow is important to the rate and quality of healing which can be influenced by the type of dressing used. The most commonly used dressings are traditional gauze-type dressings. In many cases these dressings may adhere to the wound surface, and subsequent removal is often traumatic, causing pain and tissue reinjury. Some modern gelling dressings have been developed to overcome this adherence problem. In order to evaluate in more detail cell-dressing interactions, an in vitro model has been developed utilising wound fibroblasts and epithelial cells. Quantitative evaluation of adherence of cells cultured with a traditional gauze or a new gelling dressing has been undertaken using radiolabel and manual counting techniques. Scanning electron microscopy has been used to visualise the cells adherent to dressings allowing evaluation of their adhesion-morphology. The results show differential attachment of cells to viscose and gelling fibres of the dressings; considerably reduced cell adhesion to the gelling fibre was evident, and it was apparent that cells adhered predominantly to the viscose component of the dressing. This model can be used to investigate and compare the adhesion of cells to different dressings and their components.

Animals↗

Evaluation of a synthetic wound dressing capable of releasing silver sulfadiazine.

A silver sulfadiazine-impregnated poly-L-leucine wound dressing, AgSD-medicated wound dressing, was evaluated for antibacterial capacity against Pseudomonas aeruginosa and cytotoxicity to human fibroblasts and human epidermal keratinocytes. This wound dressing contained 0.4 mg AgSD/cm2. Antibacterial capacity was examined on experimentally infected wound surfaces (3.4 x 10(4) P. aeruginosa organisms/gm) on the dorsum of mice. The AgSD-medicated wound dressing showed effective bacterial control. Cytotoxicity was examined on a monolayer of cells formed in culture dishes. Cellular damage was reduced by the controlled release of AgSD from the hydrophobic poly-L-leucine sponge matrix of the AgSD-medicated wound dressing. Cytotoxicity of the AgSD-medicated wound dressing was much lower than that of 1% AgSD cream.

Animals↗

Effect of 3M Coban Self-Adherent Wraps on edema and function of the burned hand: a case study.

Edema and limited function are common acute problems associated with hand burns. This case study examined the effects of 3M Coban Self-Adherent Wraps on edema and function in a 59-year-old male (46% TBSA flame injury) with newly skin grafted dorsally burned hands. At the time of each dressing change, circumferential measurements were taken of both hands and weekly active range of motion and grip strength measurements were recorded. The nine-hole peg test was used to appraise dexterity. During the 4-week study period, there was less edema, greater active range of motion and grip strength, and greater dexterity in the hand with 3M Coban Self-Adherent Wraps as compared with the control hand. This case study suggests that 3M Coban Self-Adherent Wraps were effective in reducing edema in the skin-grafted hand after skin grafting. It further appeared that the reduced edema may have contributed to improved hand function and that 3M Coban Self-Adherent Wraps as a compressive dressing do not impede hand function

Burns↗

Comparing the use of hydrogel dressings to lanolin ointment with lactating mothers.

OBJECTIVE: To evaluate the use of hydrogel dressings for the prevention and treatment of nipple soreness in lactating women as compared with the common intervention of lanolin ointment. The hypothesis was as follows: Participants using hydrogel dressings as a preventive measure for nipple soreness will experience greater pain relief and a lower rate of nipple wounds as compared with the control group. The secondary hypothesis was that the reduction of nipple soreness in the treatment group would produce a longer duration of breastfeeding as compared with the control group. DESIGN: A multicentered, prospective, randomized controlled clinical trial evaluating a sample of 106 lactating mothers. SETTING: Study sites were the University of Alabama Medical Center at Birmingham (an inner-city teaching hospital) and Northeast Health System (a community hospital in Beverly, Massachusetts). PARTICIPANTS: Participants were older than age 18, fluent in English, and had an operational telephone in the residence. Other inclusion criteria were singleton, vaginal deliveries; no prior breastfeeding experience; and written informed consent. INTERVENTIONS: Participants were randomized to either the lanolin ointment or the hydrogel dressings group and received instructions specific to their assignment. All participants received breastfeeding education provided by a board-certified lactation consultant. MAIN OUTCOME MEASURES: During the initial 12 study days, participants identified pain intensity using a numeric pain intensity scale and verbal descriptor scale. Subjective data were collected via self-reported skin assessments of the bilateral breasts, nipples, and areolae. Breastfeeding duration was established by a follow-up telephone call at 2 months. RESULTS: The hydrogel dressings group had significantly greater reduction in pain score mean values at baseline, on study Day 10, and on study Day 12 in comparison to the control group. Participants using the hydrogel dressings discontinued treatment sooner than participants in the lanolin ointment group. The lanolin ointment group had eight breast infections, whereas the hydrogel dressings group had none. CONCLUSION: Hydrogel dressings are a safe, available treatment that provided more effective pain management for nipple soreness than the common intervention of lanolin ointment.

Breast Feeding↗

The use of silver-based dressings in wound care.

Chronic wounds such as leg ulcers and pressure ulcers are often slow to heal. One of the causes of delayed wound healing is the presence of micro-organisms in the wound. A strategy for the prevention and treatment of wound colonisation or infection, which is receiving renewed attention, is the use of silver-based dressings. Silver has been used as an antimicrobial agent for centuries. It is effective against a broad range of bacteria (including methicillin and vancomycin-resistant strains), yeast, fungi and viruses. A number of new silver-based dressings, some of which act by the sustained release of silver ions to the wound bed, have recently become available, but there are wide variations in the amount of data supporting the use of individual products. This article reviews the evidence base for silver-containing dressings to help practitioners select the most appropriate product for the type of wound being treated.

Aged↗

Wound dressings. Past, present, and future.

The discovery that "moist" dressings can promote faster healing has led to a number of innovations in wound care. Modern dressings are playing an active part in the healing process and, in the future, will be condition-specific rather than offering off-the-shelf solutions. Focusing on hydrocolloids and alginates, which are used in bioactive dressings, this article reviews the developments that have been made to date, and includes discussion of the demands being made on the manufacturing process.

Alginates↗

[Algimaf treatment of burns].

Application of algimaf, a new polymeric dressing, in local therapy of burn wounds is conducive to spontaneous epithelization of surface burns and favors effective autodermoplasty in thermal burns. Cytologic studies of the wound discharge and examination of the burn wound microflora qualitative and quantitative composition indicate a high therapeutic efficacy of the dressing.

Anti-Infective Agents, Local↗