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[Allergic contact dermatitis from a hydrocolloid dressing due to colophony sensitization].

A 62-year-old female patient with a venous leg ulcer developed massive eczema during wound bed preparation with the hydrocolloid dressing Varihesive. The patch testing confirmed a pronounced sensitization to the hydrocolloid dressing apart from the sensitization to colophony. After review of the current literature we found several case reports from the last 10 years about sensitization to hydrocolloids which were identical but distributed under different brand names in different countries. These dressings contain the pentaerythritol ester of hydrogenated rosin as the tackifying agent which is the substance retaining the sensitizing potential of colophony. Especially patients with chronic wounds frequently tend to contact sensitizations, and colophony currently represents the 4th most frequent allergen in Germany. Therefore, highly potent allergens such as colophony should be strictly avoided as a content material of modern wound dressings.

Allergens↗

[Modern wound dressings for the therapy of chronic wounds].

The incidence of chronic wounds is increasing in developed Western countries. There are many causes for chronic or non-healing wounds. A multidisciplinary diagnostic approach and attention to underlying disorders are essential. A modern, moist, and phase adapted wound therapy is also essential. Modern wound dressings include activated charcoal, alginates, hyaluronic acid, hydrofibers, hydrogels, hydrocolloids, impregnated gauze, collagen, moist methods, proteolytic enzymes, foams, semipermeable membranes and silver dressings. Because of the lack of comparative investigations the phase-adapted use of wound dressings is still empiric. Application of modern wound dressings may help to create an optimized wound milieu and accelerate healing. Treatment of the underlying causes is an absolute requirement for long-term complete healing.

Bandages↗

The bolus tie-over "pressure" dressing in the management of full thickness skin grafts. Is it necessary?

It has been taught that the bolus tie-over "pressure" dressing is essential for the successful "take" of full thickness skin grafts. This was tested in a prospective randomised trial in which 40 full thickness grafts were either managed with the conventional bolus dressing, or alternatively with quilting sutures and no dressing. Whether under local or general anaesthesia there was only one total graft failure from haematoma (tie-over bolus group) and one partial graft failure from haematoma (quilted group). Sixty-five per cent. of all grafts were performed by junior surgical trainees. The bolus tie-over "pressure" dressing does not appear essential for full thickness skin graft survival in the areas of the head and neck studied.

Aged↗

Calcium alginate dressing accelerates split skin graft donor site healing.

A prospective controlled trial of calcium alginate compared with traditional dressing of paraffin gauze on split skin graft (SSG) donor sites had to be abandoned after 15 patients as there was consistently better healing under the calcium alginate. The study was continued, on every patient requiring split skin grafting, to assess calcium alginate from the point of view of patient comfort, ease of dressing and quality of regenerated skin. In 107 patients with 130 SSG donor operations, there was a statistically highly significant decrease in average time to complete healing (from 10 down to 7 days), and also significantly better patient comfort. The alginate dressings were easy to use and the quality of the new skin significantly better than that seen under paraffin gauze dressings.

Adolescent↗

A comparison of calcium alginate and scarlet red dressings in the healing of split thickness skin graft donor sites.

Forty-six patients had split thickness skin grafts harvested from the upper inner thigh. Calcium alginate (Kaltostat) and scarlet red dressings were applied to each half of the wound. Dressings were changed after 10 days and healing of the donor site was assessed. Seventy-two per cent of wounds dressed with calcium alginate and 84% of wounds dressed with scarlet red were healed at 10 days. Scarlet red was shown to be significantly better than Kaltostat in the healing of split thickness skin graft donor sites when assessed at 10 days (p less than 0.04).

Adolescent↗

Effects of the menstrual cycle on dressing behavior in the cold.

The purpose of the present study was to determine the effect of the menstrual cycle on dressing behavior in cold exposure. Rectal and skin temperatures, temperature sensation and metabolic rate were measured in seven women during the luteal (L) and the follicular (F) phases of the menstrual cycle, as was their dressing behavior in these two phases. The subjects were instructed to dress so as to feel comfortable when the ambient temperature was decreased from 30 degrees C to 15 degrees C (07:00-09:00). Most subjects dressed more quickly and with thicker clothing in the L phase. They felt cooler in the L phase during the last 30 min of the temperature fall. Rectal and skin temperatures showed significant differences between L and F phases and metabolic rate was significantly higher in the L phase. The results can be interpreted in terms of the establishment of a higher set-point in core temperature during the L phase.

Adult↗

Increase of surface dose using wound dressings during percutaneous radiotherapy with photons and electrons.

Different wound dressings are used for the supportive treatment of patients with radiation-induced skin lesions. Depending on beam quality and energy, an increase of the dose administered to the skin and thus an aggravated skin reaction is to be expected during percutaneous irradiation. The increase of the skin dose during irradiation with photons (Co60, 6 MV, 42 MV) and electrons (7 MeV, 20 MeV, 42 MeV) was determined using thermoluminescence dosimetry. The use of wound dressings during electron irradiation and during soft irradiation therapy does not significantly increase the dose administered to the skin and does not therefore cause any problems. During irradiation with high energy photons only extremely thin dressings should be used; if there is an aggravated skin reaction, the dressing should be taken off before irradiation commences.

Bandages↗

A comparative study of 'Op-site' and 'Nobecutan gauze' dressings for central venous line care.

A comparative study of 'Op-site' and 'Nobecutan-gauze' dressings for central venous lines was performed. Seventy-seven long antebrachial and 68 infraclavicular subclavian catheters were studied. A statistically significant reduction in the incidence of positive cultures from the catheter tip and from the skin puncture site was found with the 'Nobecutan-gauze' dressing. No difference in the incidence of catheter-related septicaemia was found. The theoretical advantage of being able to observe signs of inflammation when 'Op-site' was used did not reduce the incidence of local infection at the skin puncture site. In conclusion we found that a 'Nobecutan-gauze' dressing was a satisfactory alternative to an 'Op-site' dressing.

Aged↗

Bacterial colonization and phlebitis-associated risk with transparent polyurethane film for peripheral intravenous site dressings.

Previous studies of various brands of polyurethane dressings have noted differences in the rates of catheter colonization. We compared Bioclusive transparent polyurethane (TP) dressing with a cotton gauze (CG) dressing on peripheral intravenous (IV) access sites for the incidence of phlebitis, catheter tip colonization, skin colonization, and catheter-related bacteremia. The study, involving 598 ward patients, was case controlled, prospective, and randomized for a period of 4 months. Each patient was entered into the study only once, and all dressings were applied by a member of the IV therapy team. No significant difference was seen for phlebitis rate (TP: 9.8% vs. CG: 7.6%) or catheter tip colonization, defined as greater than 15 colony forming units (CFU) (5.7% vs. 4.4%) by a semiquantitative technique. Cultures of specimens from the skin and catheter tips of the majority of patients (91%) showed no growth. An association was found between those patients with greater than 15 CFU isolated from catheter tips and those with phlebitis (p = 0.022). No documented catheter-related bacteremia occurred in either study group.

Adult↗

Skin bacteria and Op Site chest dressings.

Growth of skin bacteria on the infraclavicular region was studied in two series of male volunteers. In the first, Op Site, a polyurethane adhesive film dressing, was compared with an occlusive polyvinyl chloride (PVC) dressing, on povidone iodine (PVI) prepared skin in 10 volunteers. Bacteria were sampled, using perspex cylinders and buffered Triton X-100 detergent, at 2, 4, 7 and 14 days, cultured aerobically and anaerobically, and colonies counted at 24 and 48 h respectively. Colony counts under Op Site were less than for undressed (control) skin and under PVC, at all days sampled, the difference being statistically significant at 2 and 14 days for controls and 4 days for PVC. In the second, four regimens of skin preparation, with Op Site dressings were compared in 12 volunteers, skin being sampled 4, 7 and 14 days. Chlorhexidine (CHD) and PVI were compared with and without defatting. Defatting significantly reduced colony counts at 4 and 7 days, whereas no differences were demonstrated between CHD and PVI. The combination of defatting and CHD resulted in colony counts consistently less than 10(3) organisms at 4 and 7 days. Op Site does not potentiate the growth of skin bacteria and is preferable to an occlusive PVC adhesive dressing. Op Site may be left intact on the chest for up to 7 days, colony counts remaining within acceptable limits.

Journal Article↗

Evaluation of gaseous transmission (O2 and CO2) through burn wound dressings.

The rates of transmission of oxygen and carbon dioxide through various burn wound dressing materials were determined. The British Standard Vacuum technique was used to determine the Gas Transmission Rate (GTR) of hydrophobic dressings. A Gas to Liquid technique was used to determine the GTR of hydrophilic (water containing) dressings. All the materials tested showed greater GTR values for carbon dioxide than for oxygen. The role of the transmission characteristics of the dressings to influence the wound healing environment is discussed.

Bandages↗

Design of a burn dressing.

One of the more important properties of a burn dressing is its ability to control fluid balance. This can be achieved by absorption and/or water vapour transmission. Unfortunately, the rate of fluid loss from a burn wound has not been thoroughly investigated, therefore 'ideal' quantitative values for dressing absorption and water vapour transmission have not been defined. However, when the data that is available regarding fluid loss from burn wounds is analysed, valuable information about dressings can be obtained which should benefit dressing design.

Absorption↗

Topical phenytoin in the treatment of split-thickness skin autograft donor sites: a comparative study with polyurethane membrane drape and conventional dressing.

The effectiveness of topical phenytoin as a wound healing agent was compared with that of OpSite (Smith & Nephew) and a conventional topical antibiotic dressing (Soframycin, Roussel) in a controlled study of 60 patients with partial-thickness skin autograft donor sites on the lower extremities. Mean time to complete healing (complete epithelialization) was 6.2 +/- 1.6 days in the phenytoin-treated group (30 patients), compared to 8.6 +/- 2.2 days with OpSite (15 patients), and 12.6 +/- 3.4 days in the 15 Soframycin-treated patients. The differences between the treatment groups were significant at P < 0.001. Mean pain scores were also lower in the phenytoin-treated group, 0.40 +/- 0.55 vs. 0.66 +/- 0.60 with OpSite (P < 0.05) and 1.4 +/- 0.50 with the conventional dressing (P < 0.001). Both phenytoin and OpSite were superior to the Soframycin dressing with respect to bacterial contamination and wound infection as measured by Gram stains of wound smears, swab and aspirate (OpSite) cultures, and clinical assessments (P < 0.001) carried out on the fifth day of treatment. No local or systemic adverse effects of the three agents used were noted. Phenytoin appears to be an effective, low-cost and safe method for the treatment of partial-thickness skin graft donor sites, comparing very favourably with, and in some aspects superior to, occlusive dressings. Further clinical use and evaluation of topical phenytoin are merited.

Administration, Topical↗

Cytotoxicity of wound dressing materials assessed using cultured skin equivalents.

An in vitro system, based on the Bell model of cultured composite skin equivalents, was used to assess the effect of a number of wound dressing materials on DNA synthesis. DNA synthesis was quantified using immunocytohistochemical identification of incorporated bromodeoxy-uridine and the percentage of labelled cells measured, following 7 days' exposure to the dressing material. Differences in labelling index were observed from replica gels covered by different dressing materials and between dressings of the same type of material, but made by different manufacturers.

Animals↗

Honey dressing versus boiled potato peel in the treatment of burns: a prospective randomized study.

Honey dressing was compared with boiled potato peel dressings as a cover for fresh partial-thickness burns in two groups of 50 randomly allocated patients. In the 50 patients treated with honey, 90 per cent of wounds were rendered sterile within 7 days. In the 50 patients treated with boiled potato peel dressings, persistent infection was noted within 7 days. Of the wounds treated with honey, 100 per cent healed within 15 days as against 50 per cent in the wounds treated with boiled potato peel dressings (mean 10.4 vs. 16.2 days).

Adolescent↗

Preventing tourniquet effect when dressing finger wounds in children.

Hand and finger injuries are common injuries in children seen in emergency departments. Many of these are soft tissue injuries, which are often caused by household items, such as doors and exercise equipment. Once these injuries are repaired, usually they are covered with a simple dressing using a material such as Coban (3M, Minneapolis, MN). This dressing often is applied by winding it circumferentially around the digit. However, with very little manipulation, this dressing can be lifted and rolled up the digit in a distal direction, creating a tourniquet effect, which can cause hypoxia and tissue necrosis. To prevent the tourniquet effect, the dressing must include the hand and wrist.

Bandages↗

Intranasal fentanyl is an equivalent analgesic to oral morphine in paediatric burns patients for dressing changes: a randomised double blind crossover study.

INTRODUCTION: The ideal analgesic agent for burns wound dressings in paediatric patients would be one that is easy to administer, well tolerated, and produces rapid onset of analgesia with a short duration of action and minimal side-effects to allow rapid resumption of activities and oral intake. We compared our current treatment of oral morphine to intranasal fentanyl in an attempt to find an agent closer to the ideal. METHODS: A randomised double blind two-treatment crossover study comparing intranasal administration of fentanyl (INF) to orally administered morphine (OM). Children with burn injury aged up to 15 years and weighing 10-75 kg were included. Primary end-point was pain scores. Secondary end-points were time to resumption of age-appropriate activities, time to resumption of fluid intake, sedation and cooperation. Routine observations and vital signs were also recorded. RESULTS: Twenty-four patients were studied with a median age of 4.5 years (interquartile range 1.8-9.0 years) and a median weight of 18.4 kg (interquartile range 12.9-33.2kg). Mean pain difference scores (OM-INF) ranged from -0.500 (95% CI=-1.653 to 0.653) at baseline to -0.625 (05% CI=-1.863 to 0.613) for a retrospective rating of worst pain experienced during the dressing procedure. All measurements were within a pre-defined range of equivalent efficacy. The median time to resumption of fluid intake was 108 min (range 44-175 min) with OM and 140 min (range 60-210 min) with INF. These differences were not statistically significant. Fewer patients experienced mild side-effects with INF compared to OM (n=5 versus n=10). No patients experienced depressed respirations or oxygen saturations. SUMMARY: Intranasal fentanyl was shown to be equivalent to oral morphine in the provision of analgesia for burn wound dressing changes in this cohort of paediatric patients. It was concluded that intranasal fentanyl is a suitable analgesic agent for use in paediatric burns dressing changes either by itself or in combination with oral morphine as a top up titratable agent.

Administration, Intranasal↗

The Acticoat glove-an effective dressing for the completely burnt hand: how we do it.

The choice of the silver impregnated Acticoat dressing (Smith & Nephew, UK) for burns is well documented due to its recognised sustained bactericidal activity, reduction of inflammation and ability to promote healing. Its use in the burnt hand, however, is a compromise between adequate dressing cover of this injury and the ability to splint and perform hand therapy on the injured limb. Trying to wrap individual fingers, maintaining web spaces and keep a relatively light dressing for the hand therapists is often difficult and time consuming. We introduce a simple, effective method of creating a custom made Acticoat glove which provides a thin, light dressing covering the hands allowing full mobilisation of the wrist and finger joints.

Bandages↗