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Local treatment of venous leg ulcers.

At present the following guidelines for treatment of venous leg ulcers from our department are: Check the patients' general health--special attention to heart incompensation with oedema of the legs and the peripheral circulation. The most relevant laboratory tests are haemoglobin and urine-glucose. Routine bacterial cultivation is not necessary in non-diabetic patients as the result will generally not influence diagnosis, treatment or prognosis. Furthermore, treatment with topical antibiotics should be avoided. It is not only unnecessary, wasteful and sensitizing, but it also involves a risk of causing antibiotic resistance. Systematic antibiotic therapy is indicated only when obvious inflammatory signs in the tissues surrounding the ulcer are present, e.g. erysipelas or cellulitis. Non-sensitizing topical remedies should be applied. Avoid wool, alcohols, parabens, topical antibiotics and oxiquinolines. When eczema occurs use a hydrocortisone preparation in an inert base. Epicutaneous testing might be indicated. Bandages to be recommended are double-layer bandages consisting of an inner zinc oxide impregnated stocking and an outer elastic bandage and hydrocolloid dressing plus compression bandage.

Anti-Bacterial Agents↗

New aspects of contact lenses in ophthalmology.

The introduction of the hydrophilic contact lens has been a significant advance in ophthalmology for the correction of ametropia, as well as for the therapy of corneal disease. The number of potential contact lens candidates has been greatly expanded by the introduction of both spin-cast and lathe-cut lenses composed of a variety of individual hydrophilic polymers. Myopia, hyperopia, presbyopia, aphakia and moderate astigmatism can be corrected with a reasonable degree of success with the present lenses. Even in keratoconus hydrophilic lenses offer a nonsurgical alternative, especially when combined with spectacle overcorrection. The introduction of hydrophilic bandages in the treatment of corneal disease has been an important addition to the therapeutic armamentarium of the ophthalmologist. When properly applied, these lenses can provide subjective relief of pain while serving to protect the damaged cornea from the traumatic action of the lids and desiccating effects of the atmosphere. The hydrophilic material is permeable to many topically instilled medications and tends to prolong the contact time of the drugs with the corneal surface. Proper fitting of the bandage lenses can eliminate superficial corneal irregularities and, thus, improve the visual acuity while treatment progresses. Medical indications for the use of this therapy include bullous keratopathy, dry eye syndromes, chemical burns, exposure keratitis, and neurotropic keratitis. A number of recurrent erosions and ulcerations have also responded to this form of therapy. Surgical indications include lacerations, postoperative lamellar and penetrating keratoplasty, and keratectomies. One of the most promising applications concerns their use in the postoperative management of alkaline burns. Best results have been obtained by constant wear of the bandage lens, with topical administration of steroids, antibiotics, and saline solution (hypotonic or hypertonic) as indicated. The possible deleterious effects of standard ocular medication containing preservatives has been overstated. Patients receiving medications without preservatives must be placed on prophylactic antibiotics to avoid secondary infection. In many cases, the therapeutic efficacy is closely related to the diameter and curvature of the bandage lens as well as the inherent physical properties of the polymers. With meticulous fitting and close observation complications have been minimal. In many instances the results have been dramatic, but even if unsuccessful the method provides a safe and relatively simple nonsurgical alternative in the treatment of severe corneal disease. Just as with older modalities, the ultimate success or failure depends upon the intrinsic nature of the disease process as well as reasonable therapeutic application based on a knowledge of the mechanics involved.

Chemical Phenomena↗

[Proprioceptive capacity of the knee joint area in patients after rupture of the anterior cruciate ligament].

In 30 healthy volunteers with clinically inconspicuous knee joints the proprioception of the knee joint was evaluated by an angle reproduction test. With the same set-up we documented the effect of an elastic knee bandage. We could not document any differences between the left and the right knee joint or between men and women, but at the mid-range of motion, proprioception was worse compared to the end range of motion. The applied elastic knee bandage significantly improved the position sense. Additionally 25 patients with an isolated rupture of the anterior cruciate ligament were evaluated. Fourteen patients were examined preoperatively 11 after operative ACL reconstruction. Preoperatively proprioception was significantly poorer than in the control group. We were able to show a positive influence of a knee bandage on the proprioception of the injured knee as well. Patients after ACL reconstruction showed no significantly better proprioception than the preoperative group.

Adult↗

Long-term management of breast cancer-related lymphedema after intensive decongestive physiotherapy.

BACKGROUND: Treatment of lymphedema is based on intensive decongestive physiotherapy followed by a long-term maintenance treatment. We analyzed the factors influencing lymphedema volume during maintenance treatment. METHOD: Prospective cohort of 537 patients with secondary arm lymphedema were recruited in a single lymphology unit and followed for 12 months. Lymphedema volume was recorded prior to and at the end of intensive treatment, and at month 6 and month 12 follow-up visits. Multivariate models were fitted to analyze the respective role of the three components of complete decongestive therapy, i.e. manual lymph drainage, low stretch bandage, and elastic sleeve, on lymphedema volume during the 1-year maintenance phase therapy. RESULTS: Mean volume of lymphedema was 1,054 +/- 633 ml prior and 647 +/- 351 ml after intensive decongestive physiotherapy. During the 1-year maintenance phase therapy, the mean lymphedema volume slightly increased (84 ml-95% confidence interval [CI]: 56-113). Fifty-two percent of patients had their lymphedema volume increased above 10% from their value at the end of the intensive decongestive physiotherapy treatment phase. Non-compliance to low stretch bandage and elastic sleeve were risk factors for an increased lymphedema after 1-year of maintenance treatment (RR: 1.55 [95% CI: 1.3-1.76]; P < 0.0001 and RR: 1.61 (95% CI: 1.25-1.82); P = 0.002, respectively). Non-compliance to MLD was not a risk factor (RR: 0.99 [95% CI: 0.77-1.2]; P = 0.91). CONCLUSION: During maintenance phase after intensive decongestive physiotherapy, compliance to the use of elastic sleeve and low stretch bandage should be required to stabilize lymphedema volume.

Adult↗

A comparison of Lyoband with cotton wool as a lining for plaster casts.

Polyurethane foam bandage (Lyoband) was compared with conventional cotton wool bandage of similar dimensions as a lining in below-knee walking plasters used for the immobilization of fractures of one malleolus. A device was designed to measure the potential space between the limb and the plaster and therefore the loosening of the cast. By virtue of its expansile nature, the Lyoband lining proved a considerably more satisfactory material than cotton wool bandage.

Bandages↗

The effect of post-operative bleeding on compartment pressure.

The effect of post-operative haemorrhage on intra-compartmental pressure has been studied in a primate model. The common practice of closing a wound and applying a compression bandage before deflating the tourniquet is shown to raise intra-compartmental pressure. Subsequent tourniquet release causes a further rise in pressure. Post-operative intra-compartmental pressure remains significantly higher during the first 3 hours of reperfusion in limbs bandaged prior to tourniquet release than in limbs in which the tourniquet is released and haemostasis gained before compression bandaging is applied.

Animals↗

Frequency of vaccinia virus isolation on semipermeable versus nonocclusive dressings covering smallpox vaccination sites in hospital personnel.

BACKGROUND: The Centers for Disease Control and Prevention recommends a semipermeable occlusive dressing for hospital workers who receive smallpox vaccination. OBJECTIVE: The study was designed to determine the frequency of vaccinia virus isolation from the outer surface of semipermeable dressings and to compare the prevalence of vaccinia virus on the outer surface of semipermeable dressings with its prevalence on the outer surface of nonocclusive dressings. METHODS: A prospective, observational study was conducted on hospital employees who received smallpox vaccination at a military academic medical center. Subjects were instructed to wear a semipermeable dressing if they had direct patient contact. Employees without direct patient care had the option of wearing a semipermeable dressing or a nonocclusive dressing. Prior to a programmed dressing change, the outer surface of the bandage site was swabbed and cultured for virus. Samples were considered positive when cytopathic effects were observed, with results confirmed as vaccinia by polymerase chain reaction. RESULTS: A total of 212 cultures were obtained from 93 subjects. All cultures directly obtained from active lesions were positive (13/13). Positive cultures were obtained from 7% (10/135) of the semipermeable dressings and 23% (15/64) of the nonocclusive dressings (P <.05). Ten percent (8/79) of the semipermeable dressings with purulent exudate observed underneath the bandage were culture positive, compared with 4% (2/56) of semipermeable dressings with no purulent exudate observed underneath the bandage (P=.19). CONCLUSIONS: Compared with nonocclusive dressings, the semipermeable dressing reduced, but did not eliminate, the frequency with which vaccinia virus was cultured from the surface of the dressing. Virus was present, but only rarely, on the dressing surface in the absence of purulent exudate under the semipermeable dressings.

Bandages↗

Comparison of elastic versus nonelastic compression in bilateral venous ulcers: a randomized trial.

BACKGROUND: There is controversy regarding the effectiveness of elastic vs nonelastic compression in the healing of venous leg ulcers. To gain insight into this controversy, we randomly compared a four-layer elastic bandage with a nonelastic garment (CircAid) in patients with venous leg ulcers. METHODS: Twenty-four extremities of 12 patients with bilateral leg ulcers were randomized to have a four-layer elastic bandage in 1 extremity and a nonelastic compression garment CircAid in the contralateral limb. The CEAP classification in 22 extremities was C(6 S); ES; A(D6,14,15,P18); PR; 1 extremity in 2 patients was C(6 S); E(S); A(D 6,14,15,P18); PRO. There were seven men and five women. Age ranged from 45 to 82 years, with a mean of 61 years. All patients had postthrombotic leg ulcers diagnosed clinically by duplex ultrasonography (n = 8) or by phlebography (n = 4). Every 4 weeks, patients had the ulcer area measured in square centimeters by a computerized scanning method and had the limb girth measured in centimeters at the foot, ankle, and calf. The ankle-brachial index was determined in all cases. Color photographs of the ulcer areas were taken monthly to assess healing progress. All patients were compliant. Results were assessed at 12 weeks. A patient satisfaction sheet was filled out by the patient, who circled one of the following scores: 3, very satisfied; 2, moderately satisfied; and 1, not satisfied. Cox proportional hazards models or paired t tests were used for comparison. RESULTS: The 24 limbs were randomized and divided into 2 groups of 12 each. Group A received CircAid, and group B, a four-layer elastic bandage. Duplex scanning showed a pattern of reflux in 11 limbs of each group. One limb in each group had a pattern of obstruction documented by air plethysmography (n = 2). Phlebography demonstrated the anatomic site in both limbs. The initial ulcer area in group A was 48.98 +/- 14.13 cm2 and was 50.08 +/- 18.30 cm2 in group B (P = .9285). The ulcer healing rate was significantly faster in group A compared with group B (hazard ratio, 0.56; 95% confidence interval, 0.33-0.96; P = .0173). Ulcers with hemodynamic obstruction had a protracted course when compared with the contralateral limbs with reflux. There was no significant difference in girth reduction between groups A and B (hazard ratio, 2.36; 95% confidence interval, 0.30-18.52; P = .3580). The ankle-brachial index was normal (> or = 1.0) in all patients. CONCLUSIONS: In compliant patients, venous leg ulcers randomized to nonelastic compression had a significantly faster healing rate per week than ulcers treated by the conventional four-layer compression system.

Aged↗

Effect of preload and afterload on ventricular arrhythmogenesis.

To examine whether it is an increase in preload or afterload that may cause ventricular arrhythmias, the ventricles of 13 anesthetized open-chest dogs were bandaged. Next, metaraminol, an almost pure alpha stimulator, was given, followed by removal of the bandage. The ventricles were then sucked in a plastic cup, which was finally removed. The systolic and diastolic ventricular pressures were measured, and the presence of arrhythmias (ventricular ectopic beats or ventricular tachycardia) was observed. Banding the ventricles caused a significant diminution of systolic pressure (-42 +/- 38.0 mmHg; mean +/- SD) and a rise in diastolic pressure (+3.5 +/- 3.7), starting from control values of 126 +/- 36/6.5 +/- 3.0, but no arrhythmia. Metaraminol raised both pressures (+122 +/- 58 and +9.0 +/- 10.3) and caused ventricular arrhythmias in 6 of 13 experiments. Removing the bandage further increased the systolic pressure (+45 +/- 42) and reduced the diastolic pressure (-7.2 +/- 10.3), but made the arrhythmia worse in 10 of 13 experiments. Suction reduced both pressures (-166 +/- 96 and -5.4 +/- 14) and stopped all arrhythmias. Removing the cup increased both pressures (+133 +/- 68 and +15.5 +/- 15.3, respectively) and worsened the arrhythmia in seven of eight experiments. In general, deterioration of ventricular arrhythmias was observed in 23 of 25 maneuvers with either an increase or no change in systolic pressure, but in none of the maneuvers was there a decrease (P < .0001) in systolic pressure.(ABSTRACT TRUNCATED AT 250 WORDS)

Animals↗

The treatment of fractures of the ring and little metacarpal necks. A prospective randomized study of three different types of treatment.

A total of 105 patients with fracture of the neck of the ring or little metacarpal bone were randomized to receive three different types of treatment: dorso-ulnar plaster-of-Paris from the proximal interphalangeal joint to elbow; functional brace around the wrist; or elastic bandage. Twenty patients (19%) had to be excluded for different reasons leaving 85 patients in the study. The remaining patients were examined after 4 weeks and 3 months. There was no difference in patient satisfaction between the three different types of treatment. The functional brace was in our opinion superior to the two other types of treatment: the patients had as little pain as the patients treated with plaster-of-Paris and less pain than patients treated with elastic bandage. Patients treated with a functional brace mobilized as fast as patients treated with elastic bandage and faster than patients treated with plaster-of-Paris. Based on these findings, we recommend the functional brace for treatment of fractures of the neck of the ring and little metacarpals.

Bandages↗

[Compressive therapy after varicose vein surgery: results of a French national inquiry].

OBJECTIVES: A survey on postoperative compression after varicose vein surgery was undertaken in 2001 among surgeons of the French-speaking Vascular Surgery Society as well as non-members with a heavy caseload in varicose vein surgery. The aims of the study were to 1) identify the various medical devices and protocols used postoperatively, 2) estimate the frequency and duration of use, and 3) identify the surgeon's rationale for prescribing postoperative compression. The first part of the inquiry was devoted to surgical procedures and has been previously published (J Mal Vasc 2003; 28: 277-86). MATERIAL AND METHODS: A questionnaire with 11 items for postoperative treatments and a patient form was mailed to 675 surgeons. RESULTS: The response rate was 41.5% (280 surgeons). Results were assessed by a scientific committee. Surgeons were classified into different groups according to their membership in the French-speaking Vascular Surgery Society or not, the type of practice (private, public hospital, mixed), and caseload. Compression was widely used (97.1%). It was the only postoperative treatment for 25.2% of the surgeons, was associated with anticoagulant treatment for 38.8% or non-steroidal antiinflammatory drugs for 11.2%. Prescription was evidence-based for only 11.6%. Compression therapy was mainly started postoperatively (93.2%). Elastic bandages (long stretch) were used by 87%. Duration of bandage therapy was variable (less than 8 days for 38.8%, 8-15 days for 24.5%). After bandage therapy, medical compression stockings (above knee 74.7%) or French class II (77.9%) were used. Compression stockings were prescribed for 8-15 days or 15-30 days by 12.7% and 84.6% of the surgeons respectively. Prolonged postoperative treatment was not common (28%) and was prescribed for patients with trophic changes.

Bandages↗

Compression hosiery in the prevention and treatment of venous leg ulcers.

Graduated compression therapy is the recognised gold standard for the treatment of venous ulcers, usually in the form of four-layer bandaging. Unfortunately with some patients the bulkiness of the bandages leads to non-compliance. An alternative to bandaging could be the use of below-knee graduated compression hosiery. This article will review the purpose and function of compression hosiery including details of patient assessment, measurement and compliance issues. It will provide the basic principles that should enable nurses to successfully treat patients with venous ulceration using compression hosiery.

Anthropometry↗

Instruction of compression therapy by means of interface pressure measurement.

BACKGROUND: Compression therapy of the leg is the cornerstone in the conservative treatment of venous ulcers. The application of compression bandages, however, is largely a matter of personal experience. OBJECTIVE: To evaluate the interface pressure under compression bandages and to improve the technique. METHODS: Six courses on wound healing with 24-28 participants as well as individual training at our hospital were provided. Interface pressure at the distal medial calf was measured using a simple, but accurate pressure sensor that was built for this purpose (accuracy: +/-3 mm Hg). RESULTS: During the wound healing courses, the absolute difference from the target pressure of 35-45 mmHg improved from 8.4 mm Hg (95% CI 0.0-34.1) to 3.5 mm Hg (95% CI 0.0-14.0) (P = .0001). After four sessions, interface pressures greater than 60 mmHg were avoided. During individual training, even nurses with everyday experience in compression therapy improved their accuracy. CONCLUSION: There is a need for objective measurement of interface pressure in the teaching of compression therapy with bandages. The principles can be taught during a few exercises. However, repeated practice over a longer period of time is necessary to reach a certain accuracy.

Bandages↗

Perceived health in a randomised trial of treatment for chronic venous ulceration.

STUDY OBJECTIVE: To observe changes in perceived health in patients during a clinical trial of treatments for venous leg ulceration. DESIGN: Randomised prospective factorial trial in patients with venous ulceration. Each patient randomised to a bandage, dressing and a drug. Perceived health assessed at entry and after 24 weeks. SETTING: Outpatient departments and patient's home. PATIENTS: Two hundred patients presenting to two vascular services in Falkirk and Edinburgh with chronic (duration > 2 months) non-healing venous ulceration. STATISTICAL ANALYSIS AND MAIN RESULTS: Analysis using the Nottingham Health Profile revealed that after 24 weeks there were significant improvements in all subscores (p < 0.01) with the exception of social isolation (p = 0.081). Patients with healed ulceration had improved in energy, pain, emotion, sleep and mobility compared with those whose ulceration failed to heal (p < 0.05). Patients randomised to four layer bandaging had significantly better energy (diff = 7.9, 95% CI 0.2, 15.6, p = 0.04) and mobility (diff = 4.5, 95% CI 0.0, 9.0, p = 0.046). This difference could be explained largely by the improved healing of patients randomised to this bandage system (67/97 vs. 50/103, OR = 2.37, 95% CI 1.31, 4.27). CONCLUSIONS: Improvements in perceived health were significantly greater in patients whose ulcers had completely healed. Methods of treatment which offer improved healing for patients with venous leg ulceration are likely to improve patients' perceived health status.

Adult↗

Successful control of an Acinetobacter baumannii outbreak in a neonatal intensive care unit.

We describe an outbreak of Acinetobacter baumannii in a neonatal intensive care unit (NICU), and our investigation to determine the source and mode of transmission and identify the population at risk. A case (infected infant) was defined as a patient hospitalized in the NICU during the outbreak period, with clinical signs of sepsis and isolation of A. baumannii. In colonized infants, A. baumannii was isolated from body surfaces without signs of infection. Infected infants were separated and treated by a different medical team. Cultures were taken from working surfaces and along the infant's admission passage from the delivery room to the NICU. The outbreak strain was identified by pulsed-field gel electrophoresis (PFGE). Nine cases and eight colonized infants met the definition criteria. Cases were younger than colonized infants with regard to gestational age and age of diagnosis and had lower birthweights (P<0.01). The outbreak strain was only isolated from hygroscopic bandages used on skin under the ventilation tube and umbilical catheters. Discontinuing the use of the bandages put an end to the outbreak. We conclude that a rapid and thorough investigation of the environment during an outbreak of A. baumannii is essential to finding the source of the infection, and that hygroscopic bandages may be a source of such outbreaks.

Acinetobacter Infections↗

Preliminary observations on expression of transforming growth factors beta1 and beta3 in equine full-thickness skin wounds healing normally or with exuberant granulation tissue.

OBJECTIVE: To determine whether transforming growth factor (TGF)-beta1 and -beta3 expression differs between equine limb wounds healing normally and those healing with experimentally induced exuberant granulation tissue (EGT). STUDY DESIGN: Six wounds were created on the lateral aspect of both metacarpi of each horse; one forelimb was untreated, and the other was bandaged to stimulate the development of EGT. Sequential wound biopsies allowed comparison of growth factor expression between the two types of wound. ANIMALS: Four horses (2 to 4 years of age; 350 to 420 kg). METHODS: Wounds were assessed grossly, histologically, and by enzyme-linked immunosorbent assay (ELISA) for TGF-beta1 and -beta3 expression at 12 and 24 hours and 2, 5, 10, and 14 days postoperatively. RESULTS: Bandaged wounds developed EGT. In all wounds, TGF-beta1 peaked early and remained elevated at 14 days. Peak TGF-beta1 concentration was higher in wounds with EGT, but not significantly so. Expression of TGF-beta3 differed from TGF-beta1, with peak TGF-beta3 concentrations being delayed. Concentrations of TGF-beta3 were higher in wounds healing normally, but this difference was not significant. CONCLUSIONS: During both normal and exuberant wound repair, the expression of TGF-beta1 occurred earlier than TGF-beta3 expression. Wounds healing with EGT tended to have higher concentrations of fibrogenic TGF-beta1 and lower concentrations of antifibrotic TGF-beta3 than wounds healing normally, although these differences were not statistically significant. CLINICAL RELEVANCE: This study suggests that the production of EGT in bandaged wounds may be related to increased expression of fibrogenic TGF-beta1 and decreased expression of antifibrotic TGF-beta3. Further investigation of the roles of TGF-beta1 and -beta3 may be important in understanding the molecular control of EGT in horses.

Animals↗

Effects of 25% propylene glycol hydrogel (Solugel) on second intention wound healing in horses.

OBJECTIVE: To evaluate the effect of a commercially available 25% propylene glycol hydrogel preparation (Solugel; Johnson and Johnson Medical, North Ryde, Australia) on healing of full-thickness skin wounds on the distal aspect of the limb in horses. STUDY DESIGN: Experimental. ANIMALS: Eight Standardbred horses. METHODS: Standardized (2.5 x 2.5 cm) full-thickness skin wounds were created over the mid-dorsomedial aspect of both metacarpi in 8 horses. One wound in each horse was dressed with saline solution (0.9% NaCl) soaked gauze, and one was treated with Solugel under dry regular gauze; wounds were then bandaged with gauze-coated cotton wool and elastic adhesive bandages. Wounds were videorecorded and rebandaged twice weekly until healed. Wound healing variables were measured from the videorecordings using a computer software package and analyzed as a randomized complete block design with repeated measures. Where necessary variables were made positive for analysis; significance was set at P <.05. RESULTS: The area of the wound at the first bandage change did not vary between treated and untreated wounds. Treatment had no effect on the total rate of healing, rate of healing during the retraction phase of healing, rate of healing after the retraction phase was complete, or the amount the wounds retracted. CONCLUSIONS: Using this model of wound healing, Solugel had no effect on second intention healing of distal limb wounds in horses. CLINICAL RELEVANCE: Solugel does not appear to have any beneficial effect on healing of small full-thickness skin wounds to the distal limb of horses.

Administration, Cutaneous↗

Supermicrosurgical lymphaticovenular anastomosis for the treatment of lymphedema in the upper extremities.

Over the last eight years, the authors analyzed obstructive lymphedema of a unilateral upper extremity in a total of 27 females, comparing the use of supramicrosurgical lymphaticovenule anastomoses and/or conservative treatment. The most common cause of edema was mastectomy, with or without subsequent radiation therapy for breast cancer. As an objective assessment of the extent of edema, the circumferences of the affected and opposite normal forearms were measured at 10 cm below the olecranon of the arm. Twelve of these patients received continual bandaging. In these patients, the average excess circumference of the affected arm was 6.4 cm over that of the normal forearm; the average duration of edema before treatment was 3.5 years; the average period for conservative treatment was 10.6 months; and the average decrease in circumference was 0.8 cm (11.7 percent of the preoperative excess). Twelve patients underwent surgery and postoperative continual bandaging. In these patients, the average excess circumference was 8.9 cm; the average duration of edema before surgery was 8.2 years; the average follow-up after surgery was 2.2 years; and the average decrease in circumference was 4.1 cm (47.3 percent of the preoperative excess). These results indicated that supermicrolymphaticovenular anastomoses with postoperative bandaging have a valuable place in the treatment of obstructive lymphedema.

Adult↗