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PubMedDate not supplied

Hospital-acquired gangrenous mucormycosis.

A post-operative diabetic patient who had been treated for Serratia marcescens bacterial sepsis developed recurrent thrombosis of the left femoral artery following intra-arterial instrumentation. Pathological examination of arterial thrombus ultimately demonstrated invasive mucormycosis of the femoral artery and cultures of this material grew Rhizopus oryzae. The occurrence of cutaneous and subcutaneous mucormycosis is reviewed, as well as recently recognized nosocomial risk factors for mucormycosis, such as elasticized bandages and wound dressings.

Bandages↗
PubMed1987

[Increased risk of bacterial colonization of intravenous catheters covered with transparent adhesive polyurethane bandages, compared to classical gauze bandages].

While transparent polyurethane dressings are increasingly used for the care of intravenous catheters, concern has recently been expressed regarding their microbiological safety. We have therefore compared the rate of intravenous catheter bacterial colonization after randomly assigning intensive care patients to transparent polyurethane (n = 21) or dry gauze (n = 20) dressings. Polyvinyl chloride catheters were inserted and maintained by the nurses. No antiseptic or antibiotic ointment was used. The two groups of patients were similar regarding risk factors for catheter colonization. Colonization rate was 48% (10/21) among patients with transparent dressings versus 10% (2/20) among patients with dry gauze dressings (p = 0.008). Colonizing bacterial species were Staphylococcus epidermidis (11 strains) and S. aureus (1 strain). No catheter-related bacteremia was observed. These data suggest that the colonization rate of intravenous catheters is increased by the use of polyurethane dressings, possibly increasing the risk of septic phlebitis and bacteremia.

Adult↗
PubMed2005

Skin grafting for venous leg ulcers.

BACKGROUND: Venous leg ulceration is a common and disabling condition which often recurs. It affects up to one in 100 adults at some time. The usual treatments are simple dressings and compression bandages or stockings. Unfortunately, in some cases this treatment is unsuccessful, with ulcers remaining open for months or years. Sometimes skin grafts are used to stimulate healing. These skin grafts may be taken from the patient's own uninjured skin, may be grown from the patient's skin cells into a dressing (autografts), or applied as a sheet of bioengineered skin grown from donor cells (allograft). Preserved skin from other animals, such as pigs, has also been used; these grafts are known as xerografts. OBJECTIVES: To assess the effect of skin grafts for treating venous leg ulcers. SEARCH STRATEGY: We searched the Cochrane Wounds Group Specialised Register (June 2004) and the Cochrane Central Register of Controlled Trials (The Cochrane Library, Issue 2, 2004). SELECTION CRITERIA: Randomised controlled trials (RCTs) of skin grafts in the treatment of venous leg ulcers. DATA COLLECTION AND ANALYSIS: Two reviewers independently undertook data extraction and assessment of study quality. MAIN RESULTS: Nine trials of skin grafts for venous leg ulcers were identified, involving 579 participants. The trials were generally of poor methodological quality. In eight trials participants also received compression bandaging. Two trials (98 participants) evaluated split thickness autografts (one against a dressing and one against a xerograft), four trials (119 participants) evaluated cultured keratinocyte grafts (3 allografts and 1 autograft) , two compared tissue engineered skin (bilayer artificial skin) with a dressing (345 participants), and one compared it with a split thickness skin graft (7 participants, 13 ulcers). The trials comparing bilayer artificial skin with a dressing reported a significantly higher proportion of ulcers healing with artificial skin. There was not enough evidence from the other trials to determine whether other types of skin grafting increased the healing of venous ulcers. AUTHORS' CONCLUSIONS: There is evidence that a bilayer artificial skin, used in conjunction with compression bandaging, increases the chance of healing a venous ulcer compared with compression and a simple dressing. Further research is needed to assess whether other forms of skin grafts increase ulcer healing.

Adult↗
PubMed1997

The influence of dressings on venous ulcer healing--a randomised trial.

OBJECTIVE: To assess the effect of different dressings on venous ulcer healing. DESIGN: A randomised clinical trial. MATERIALS: Patients were randomised to treatment with one of three dressings: a zinc oxide impregnated bandage, a zinc oxide impregnated stockingette, or an alginate dressing. All patients were treated as outpatients and had compression bandaging with two minimal stretch bandages (Elastocrepe) and a stockingette (Tubigrip) to keep the bandages in place. METHODS: One hundred and thirteen patients (133 ulcerated limbs) with chronic ulceration of the leg due to venous disease alone, and attending Fremantle Hospital Leg Ulcer Clinic, Western Australia were entered into the study. Healing was measured as complete healing of the ulcerated limb or failure of the limb to heal within 9 months. RESULTS: There was no significant difference between the three groups in ulcer size, duration, and other parameters compared. Healing was affected significantly by ulcer size and which leg was ulcerated. There was significantly faster healing with the paste bandage. CONCLUSION: The use of a paste bandage significantly improved the healing of chronic venous ulcers when used in combination with compression bandaging, and compared to an alginate dressing and a zinc oxide impregnated stockingette.

Adult↗