[Wound care in companion animals].
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The wide variety of dermatologic surgical procedures has resulted in a corresponding choice of wound dressings. Considering the chemical and physical properties as well as the function of the dressings, standardized dressing techniques can be performed with relatively few materials. This saves both time and money.
BACKGROUND: Various therapeutic approaches have been developed to manage venous ulcers. In this study the effectiveness of a hydrocolloid dressing (Comfeel Ulcer Dressing) in comparison to the Unna boot, the prototype of rigid bandages, was evaluated. METHODS DESIGN: Prospective, comparative study. SETTING: University hospital. PATIENTS: Sixty patients diagnosed with post-thrombotic chronic venous insufficiency with venous ulcers were randomly assigned to two groups of 30 patients. INTERVENTIONS: In group A, the Unna boot, and in group B, hydrocolloid dressing in addition to the elastic compression were used. MEASURES: The two groups were compared in terms of 1) complete healing, 2) weekly wound surface reduction, 3) time to complete healing, 4) performance characteristics (ease-of-use score), 5) pain during application and at home, 6) application time. RESULTS: The duration of the ulcers was 16.6 +/- 5.8 weeks in group A and 16.9 +/- 6.2 in group B (p >0.05). Previous ulcer recurrence was 74% (20/27 patients) in group A and 73% (19/26 patients) in group B (p >0.05). The initial ulcer size was 6.38 +/- 1.2 cm2 in group A and 6.19 +/- 0.8 cm2 in group B (p >0.05). The complete healing rates were 74.07% (20/27) in group A and 80. 76% (21/26) in group B (p >0.05). The weekly wound surface reductions were 1.28 +/- 0.72 cm2/week and 1.16 +/- 0.38 cm2/week in groups A and B, respectively (p >0.05). The ulcer healing time was 6.85 +/- 3.60 weeks in group A, whereas it was 6.65 +/- 3.31 weeks in group B (p >0.05). Ease-of-use score was 9.04 +/- 2.38 in group A and 17.27 +/- 3.27 in group B and the difference was significant (p <0.0001). A higher degree of pain was reported by the patients who were treated with the Unna boot, both during application (group A 3.69 +/- 1.35, group B 1.88 +/- 1.48, p <0.0001) and at home (group A, 3.27 +/- 1.08, group B, 1.88 +/- 1.11, p <0.0001). The average time spent on Unna boot changes was 150.59 +/- 34.73 min, compared to 134.54 +/- 43.39 min in group B (p >0.05). CONCLUSIONS: These results demonstrate the superiority of hydrocolloid dressing plus elastic compression treatment in terms of patient convenience.
A randomized trial of three treatment methods for the ambulatory management of minor burns in children has shown Op-site to be superior. The dressing is cost-effective and well tolerated, with the advantage that children can return to their normal activities without jeopardizing the healing process.
During an eight-year period, the author used a semiocclusive, transparent film surgical dressing as a protective cover for 3637 surgical incisions. The wet environment facilitated healing, and no patient exhibited any symptoms of wound infection. Compared with traditional methods, the semiocclusive dressing resulted in faster wound healing, decreased pain, and less scarring. It also permitted visual assessment of wound healing, as well as promoting patient mobility and hygiene.
The results of a study on the use of DuoDerm Hydroactive sterile occlusive dressing on the operative wound after simple excision of pilonidal fistula are reported. Two groups of 20 patients were studied: in the first group the wound was treated with traditional medications, in the second group with DuoDerm. Comparing the results obtained from these two groups, the Authors conclude underlining the therapeutic efficacy of the dressing which stimulates granulation and accelerates re-epithelialization with complete healing in 6 weeks on average compared with the 10 needed with traditional medications.
Two occlusive, adhesive dressings--one hydrocolloid (absorptive) and one zinc-medicated (non-absorptive)--were studied regarding their occlusivity and effects when applied to normal human skin for 48 h. Both dressings reduced normal transepidermal water loss by about 70%. As documented by a 7-fold increase in the water loss beneath the dressings compared to untreated skin, water was retained in the stratum corneum by both dressings. No appreciable influence of either dressing on skin temperature was found. The skin surface pH decreased beneath the hydrocolloid while it increased beneath the zinc dressing.
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.
The perceived benefits of bandaging for 10 days following pinnaplasty have been questioned by previous studies. The problems arising from these dressings are many [Powell BWEM. The value of head dressings in the postoperative management of the prominent ear. Br J Plast Surg 1989;42:692-4. Bartley J. How long should ears be bandaged after otoplasty? J Laryngol Otol 1998;112:531-2. Wong MC, Sylaidis P. Head dressings for pinnaplasty: a tradition not supported by evidence. Br J Plast Surg 2001;54:81-2], including their slippage [Powell BWEM. The value of head dressings in the postoperative management of the prominent ear. Br J Plast Surg 1989;42:692-4. Bradbury ET, Hewison J, Timmons MJ. Psychological and social outcome of prominent ear correction in children. Br J Plast Surg 1992;45:97-100. Jeffery SLA. Complications following correction of prominent ears: an audit review of 122 cases. Br J Plast Surg 1999;52:588-90]. Eighty children were recruited into a prospective randomised controlled trial comparing the use of a head bandage for only 24 h with a standard practise of a 10-day head bandage. A preoperative measurement of the lateral ear projection (LEP) was made. The outcome measures recorded during the two planned postoperative visits at 10 days (visit 1) and 2 months (visit 2) were: patient satisfaction score, LEP, complications and any unscheduled hospital visits associated with the surgery. There was no significant difference in LEP and patient satisfaction between the two groups at both the scheduled postoperative visits. Differences between the groups in the number of unscheduled visits (p=0.21) did not reach statistical significance. The findings indicate that it is safe and effective to use head bandage for only 24 h following surgical correction of prominent ears. This study shows no benefit from the application of a formal head bandage for any longer than 1 day.
Twenty-two patients with 31 leg ulcers of various causes received local wound management consisting of the application of an adhesive hydrocolloid (HC) occlusive dressing (DuoDerm). Group 1 comprised 15 patients (11 outpatients) with 19 ulcers. Approximately two thirds (12/19) of the ulcers healed when treated solely with the HC dressing; mean treatment time was 57 days. Group 2 comprised seven hospitalized patients with at least two leg ulcers of similar size and distribution. The 20 ulcers in the seven patients were treated with either mild topical antimicrobial wet dressings (Sweitzer's 1:32 solution) or HC dressings, with each patient serving as his own "control." All 20 ulcers healed; the average time to healing was 44 days with HC dressing and 42 days with wet dressing management. Most of the patients reported convenience in management and substantial relief of pain with the use of HC dressings.
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