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Results for “OCCLUSIVE DRESSINGS”

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At least 1,423 records · Page 79Linked to original sources
PubMedDate not supplied

A comparison of transparent adherent and dry sterile gauze dressings for long-term central catheters in patients undergoing bone marrow transplant.

Patients undergoing bone marrow transplant (BMT) are at great risk of infection and sepsis. Long-term central catheters (LTCCs), required for IV therapy, can be a portal of entry for infectious agents. This randomized, prospective study compared two types of catheter dressings in 98 patients undergoing BMT: a dry sterile gauze dressing (DSGD) changed daily and a transparent adherent dressing (TAD) changed every four days. Study outcomes included incidence and severity of local and systemic complications, patient assessment of comfort, and calculation of nursing time. One case of catheter-related infection occurred during the study. No significant differences existed between the two dressings in the incidence of positive skin cultures or local complications with the exception of skin irritation. The TAD caused less skin irritation, was preferred by patients, cost less, and required less nursing time. The findings indicate that TADs provide a safe, comfortable, and cost-effective alternative to DSGDs for patients undergoing BMT and receiving antibiotic support during aplasia.

Adolescent↗
PubMed1998

[Testing the osmotic-diffusion properties for the membranous dressing Bioprocess].

In order to determine of the osmotic-diffusive properties of membranous dressing Bioprocess, which is a microfibrous network of homogeneous cellulose produced in biosynthesis by Acetobacter, the hydraulic permeability (Lp), reflection (sigma) and diffusive permeability (omega) coefficients were measured. The values of these coefficients showed that this membrane possess a low selectivity. This amount it easy permeable for solvent (water) as well as for solutions (aqueous solutions of glucose, sucrose, ethanol, NaCl or KCl). Thus, it attend a demands make for polymeric materials used in therapy of scald and ulceration.

Acetobacter↗
PubMed1988

The toxic shock syndrome in a burn victim.

A case of toxic shock syndrome (TSS) in a 6-year-old boy with a 5 per cent body surface area partial thickness scald burn is reported. Biobrane was the wound dressing used initially. The clinical and laboratory characteristics of the syndrome are listed. The syndrome is caused by an exotoxin of Staph. aureus and can occur in the absence of invasive infection. The syndrome, first described in menstruating women who used tampons, has occurred in patients with a variety of wounds. Reports of the TSS syndrome in burn victims are limited to children whose wounds were covered. Children are most vulnerable to the development of TSS because of their limited prior exposure to the toxin.

Biocompatible Materials↗
PubMedDate not supplied

Healing characteristics of expanded autografts on wounds covered with homograft and Biobrane temporary wound dressing.

This study compared the healing characteristics of expanded autografts on wounds with interstices that were closed with cryopreserved cadaver homograft split-thickness skin and wounds with interstices that were closed with the synthetic skin substitute, Biobrane temporary wound dressing. Nine paired wounds in four patients with large burns were used in this study. When Biobrane temporary wound dressing adhered to a wound, epithelial migration did not proceed until it was removed. Although wounds covered with homograft immediately had the appearance of healed wounds, biopsy specimens showed evidence of a delay in epithelial migration. Although these results indicate impaired epithelial migration with the use of both materials, we concluded that homograft offered an advantage because the wounds that were covered with it remained closed during the entire reepithelialization process.

Adult↗
PubMed2003

Concerning the wound-healing properties of Sphagnum holocellulose: the Maillard reaction in pharmacology.

Sphagnum wound dressings can be 3-4 times as absorbent as cotton equivalents, but they also react chemically with proteins of all kinds. This reactivity gives them the potential of immobilizing whole bacterial cells as well as the enzymes, exotoxins, and lysins secreted by the most invasive pathogens. Once immobilized, enzymes and (by inference) exotoxins and lysins are rapidly inactivated by a Maillard reaction. The complex pectin in Sphagnum is structurally similar to known, immunostimulatory pectins from other plants, including some that are traditionally used for wound healing.

Animals↗
PubMed1998

Negative-pressure dressings as a bolster for skin grafts.

Contoured wounds needing closure with skin grafts are often located in complex anatomic regions or are in unusual positions, which make conventional skin graft stabilization techniques cumbersome and ineffective. Often after 72 hours, a skin graft covered with a bolstered dressing has poor take secondary to shear stresses, as well as hematoma formation or serum collection, negating the effectiveness of the stabilizing dressing. The Food and Drug Administration has recently approved vacuum-assisted closure (V.A.C.), an innovative technique using negative pressure, for closure of chronic wounds. This reportedly leads to enhanced granulation tissue formation and consequently more rapid reepithelialization of wounds compared with conventional packing with saline-moistened gauze. Experimental studies have demonstrated increased oxygen tension, decreased bacterial counts, and increased granulation formation occurring under negative-pressure systems. Extending the use of this concept, we have coupled skin grafting with negative-pressure dressings for closure of large, complex open wounds. Our results indicate greater than 95% graft take in all patients in this study. This technique is extremely efficacious, with increased graft take due to total immobilization of the graft, thereby limiting shear forces, elimination of fluid collections, bridging of the graft, and decreased bacterial contamination. Moreover we have noted decreased edema in rotated muscle flaps, improved contour conformity, and shortened hospitalizations.

Aged↗
PubMedDate not supplied

Evaluation of Acti-Wrap: a new cohesive retention bandage.

Retention bandages are designed to keep dressings, devices and creams in place without causing discomfort to the patient. They should be lightweight, soft and comfortable and should not cause unwanted compression. Acti-Wrap retention bandage (Activa Healthcare) is a new, conforming bandage which is easy to apply and because of its cohesive nature stays in place. This product focus looks at the ways in which the bandage can be used effectively and the cost-effectiveness of using this type of bandage. The simple evaluation described in this article compares Acti-Wrap with two other frequently used retention bandages.

Evaluation Studies as Topic↗
PubMed1995

[Propofol and ketamine for dressing in burnt patients].

General anaesthesia is often required for burns dressing. Ketamine was the most common agent for carrying out removal of adherent dressings. Disadvantages are delirium on emergence from anaesthesia and prolonged recovery. We have studied an intravenous combination of propofol and ketamine in 29 burned patients for 39 dressings. After induction with 1 mg.kg-1 of propofol and 0.75 mg.kg-1 of ketamine, the maintenance rate was 2.5 mg.kg-1.h-1 of each agent. Satisfactory intraoperative conditions were obtained in all cases. Mean time of recovery was less than 15 min. Unpleasant dreaming occurred in 3 patients only, without agitation. The technique proved to be simple, effective and should revive interest for ketamine in the management of burned patients.

Adolescent↗
PubMed1993

A retrospective view of factors that affect catheter healing: four years of experience.

To determine factors that lead to successful healing, the results of catheter placement were collected by retrospective chart review in 103 peritoneal dialysis patients between January 1988 and March 1992. There were a total of 112 catheter insertions. A healing time of less than 2 weeks was defined as an optimal outcome. Data were analyzed using contingency tables. Strong predictors of early and effective healing were the following: exit site size less than 0.7 cm, the use of a tunneler to create the exit site, the use of Swan neck catheters, immobilization using Viasorb dressings, and postoperative prophylaxis with intravenous vancomycin. Dialysate leak and the development of hematomas significantly delayed healing. Leaking was associated with early use of the catheter for peritoneal dialysis. Hematoma formation was associated with the use of a tunneler. Uremic or nutritional status, diabetes, immunosuppressive agents, or HIV-positive did not affect catheter healing. Careful attention to intraoperative and postoperative factors optimizes healing independent of complications of primary disease processes in peritoneal dialysis patients.

Adolescent↗
PubMed2003

[Hydrocolloids and lubricating materials in the treatment of acute and chronic wounds].

The authors carry out a study on a dressing which associates hydrocolloids and a lubricating material, Vaseline, used on 28 patients who suffer from acute or chronic wounds having diverse etiologies. The authors evaluate the biological process through which each wound builds scar tissue, its tolerance, efficiency and degree of acceptance with results which are frankly positive. The data in this study for these parameters coincide with those of other research projects which have been carried out in France, Germany and the United Kingdom.

Acute Disease↗
PubMed1986

Chemical and physical properties of a hydrogel wound dressing.

Geliperm hydrogel provides optimal physiological conditions for wound healing. The material is composed of two interlaced networks, one of polyacrylamide and one of agar, and contains about 96% firmly bound water. It is supplied in smooth, elastic, transparent sheets which are impermeable to bacteria but permeable to gases, salts, metabolites and proteins. Geliperm is nontoxic and has no irritative properties. Mechanical properties, water retention and diffusion of dyes and proteins are reported. Bacterial size should preclude penetration of the gel. The hydrogel in granular form represents a coherent material which could be used in deep fissured wounds and for the treatment of injuries with a large amount of exudation and contamination.

Acrylamides↗
PubMed1990

[The therapy of acute radiogenic epitheliolysis with a dressing of hydrocolloids and polymers (Biofilm). A report on clinical experience].

Acute skin lesions following radiotherapy are uncomfortable and unacceptable side effects. They are observed predominantly after high surface doses as in conventional roentgen or electron beam therapy. To accelerate the wound healing we tested a bandage consisting of hydrocolloids and polymers, which is permeable for gas and water. Handling, compatibility and effectiveness of this plaster were tested in this study. According to the RTOG scoring system 19 irradiated fields with grade II to IV lesions were treated. Densitometric measurements of verification films with and without Biofilm showed no energy absorption. The bandage was comfortable for the patients and easy to handle.

Acute Disease↗
PubMedDate not supplied

Treatment of a heel blister caused by pressure and friction.

The treatment of heel blisters caused by pressure, friction, and shear is a complex subject. Issues such as whether to aspirate the blister, how to protect it from further pressure, friction, and shear, and which dressing to choose, need to be considered. As nurses are increasingly aware of the emphasis that has been placed on the importance of ensuring that clinical practice is based on evidence, this article attempts to shed some light on these areas of debate. It is important to highlight that during the literature search very little research was found to exist on blister care and it became clear that further research into the nursing care of a blister caused by pressure would be useful to aid nursing care and patient comfort.

Aged↗
PubMed1990

[Experimental study of new polymer dressings in the treatment of burn wounds].

Data on the experimental study of a new polymer coverage for treatment of burn wounds are presented in the article. Application of this coverage, which has a tanning and absorbing affect promotes formation of a dry eschar over a burn wound within the first two days after the accident. This allows to perform early chemical necrectomy on the 6-7th day after the accident. Microbiological investigations show that wound dissemination after application of the coverage remains low and is 3.5 +/- 0.1 per. 1.0 g of the tissue.

Administration, Cutaneous↗
PubMed1986

Collagen-based wound dressing: effects of hyaluronic acid and fibronectin on wound healing.

Our previous studies have shown that a collagen-based wound dressing induces the spatial deposition of wound tissue. This study was conducted to determine the effects of hyaluronic acid and fibronectin on wound healing. These macromolecules play an important role in wound healing, embryonic development and cellular migration in vitro. The effects of the addition of varying levels of fibronectin and hyaluronate to a collagen sponge were studied. Low levels of both hyaluronate and fibronectin modified the structure of the implant, and resulted in increased chemoattraction, replication and collagen deposition in an in vivo wound healing model.

Animals↗
PubMedDate not supplied

The Biobrane stent.

For a successful take, skin grafts must be immobilized when applying dressings. Surgical beds requiring a stent to maintain contact between the graft and wound bed can be treated with Biobrane (Dow B. Hickam, Inc., Sugarland, Texas), which is held in place with skin staples at the periphery. Moistened gauze is placed over the grafted area, the redundant Biobrane stretched over the gauze, and this top layer again stapled at the periphery. When the stent is no longer needed, the top layer of Biobrane and gauze are removed, leaving a graft adherent to the bed and covered with Biobrane. This allows the surgeon to quickly construct an effective stent.

Biocompatible Materials↗
PubMed2006

Silver as biocides in burn and wound dressings and bacterial resistance to silver compounds.

Silver products have been used for thousands of years for their beneficial effects, often for hygiene and in more recent years as antimicrobials on wounds from burns, trauma, and diabetic ulcers. Silver sulfadiazine creams (Silvazine and Flamazine) are topical ointments that are marketed globally. In recent years, a range of wound dressings with slow-release Ag compounds have been introduced, including Acticoat, Actisorb Silver, Silverlon, and others. While these are generally accepted as useful for control of bacterial infections (and also against fungi and viruses), key issues remain, including importantly the relative efficacy of different silver products for wound and burn uses and the existence of microbes that are resistant to Ag+. These are beneficial products needing further study, although each has drawbacks. The genes (and proteins) involved in bacterial resistance to Ag have been defined and studied in recent years.

Bacteria↗
PubMed2004

Vacuum-assisted closure in the treatment of gynecologic oncology wound failures.

OBJECTIVE: Negative pressure wound vacuum therapy can expedite the healing of complex wound failures. Our aim was to evaluate the use of a vacuum-assisted closure (VAC) device to treat complex wound failures in gynecologic oncology patients. METHODS: We retrospectively identified 27 patients with gynecologic malignancies in whom the device was used to treat complex wound failures from January 2001 to May 2002 at our institution. We analyzed operative data and information regarding the diagnosis and management of these complex wound failures and the length of time the device was used. RESULTS: The procedures performed before wound VAC placement were total abdominal hysterectomy with bilateral salpingo-oopherectomy with or without tumor reductive surgery in 14 patients, vulvectomy with or without inguinal lymph node dissection in five patients, skin or myocutaneous grafting in three patients, parastomal herniorrhaphy in two patients, retroperitoneal lymph node dissection in two patients, and incision and drainage of a gluteal abscess after radiation therapy in one patient. Four of the 27 patients had the VAC device placed at the time of a reoperation, while the remaining 23 patients had the VAC device placed postoperatively for wound failures. Wound breakdown occurred at a median of 9 days (range: 0-88 days) postoperatively. Overall, there was a 96% reduction (range: 0-100%) in the median size of wound defects from 330 to 14.0 cm(3) with use of the VAC device. The median number of days of VAC therapy was 32 days (range: 3-88 days). Twenty patients used this device as outpatients, and the charge per day was approximately US$150.00. One patient experienced bleeding, and 26 patients experienced no complications. The only complaint was pain during dressing changes (67% of patients). The mean follow-up was 52 days (range: 0-270 days). At the time of last contact, 26 (96%) of 27 patients had complete wound healing. CONCLUSIONS: VAC therapy is a novel treatment using controlled negative pressure to evacuate wound fluid, stimulate granulation tissue, and to decrease bacterial colonization of the wound. Our experience indicates that this is a safe method to treat complex wound failures in gynecologic oncology patients.

Adult↗