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Objective: The aim of the study was to compare the efficacy of a microorganism-binding (MB) dressing with a silver-containing hydrofiber (SCH) dressing in controlling the bacterial loads of heavily colonised or locally infected chronic venous leg ulcers, before surgical management with homologous skin grafts. Method: A randomised, comparative, single centre study recruited patients presenting with hard-to-heal critically colonised or locally infected leg ulcers, who could be treated with skin grafting. Inclusion criteria included; ulcers of vascular aetiology, over 18 years old, a wound duration ≥ 6 months and ankle brachial index (ABPI) > 0.6. Patients were randomly assigned to treatment with SCH dressings (Aquacel Ag) or MB dressing (Cutimed Sorbact). Dressings were changed daily over a four-day observation period, after which they were taken for a skin grafting procedure. Swab samples from ulcer beds were taken in order to quantify the bacterial load at inclusion (D0) and at the end of the observation period day 4 (D4). No antibiotics were administered before or during the evaluation period. Results: Both groups (n = 20 SCH, n = 20 MB) were similar in gender, age, pathophysiology (both had 15 patients with venous leg ulcers and five with arterial leg ulcers), ulcer surface, ulcer duration, treatment-related pain and initial bacterial load. Analysing bacterial load variation showed a significant reduction of bacterial burden at D4 in both groups. In the SCH group, we found an average bacterial load reduction of 41.6%, with an average reduction of 73.1% in the MB group (p < 0.00001). No serious adverse events were reported. Conclusion: Our evaluation confirmed that MB and SCH dressings are effective in reducing the bacterial burden in critically colonised or locally infected chronic leg ulcers, without inducing adverse events, with MB dressings significantly more effective. [ABSTRACT FROM AUTHOR]

Background: Compression treatments used the following intervention for varicose veins range from no compression, to elastic stockings and compression bandaging. There is no consensus on the strength or duration of compression which should be applied following a particular treatment. The author reviews the evidence that has led him to reach his own viewpoint on this subject. Summary: Compression stockings are often prescribed after treatment of varicose veins, but these in general exert a much lower pressure in the thigh compared with firm inelastic compression bandages. It has been shown by objective investigation that it takes a pressure of 10-15 mmHg in the supine position and 40-50 mmHg in the standing position to occlude a superficial vein in the thigh. The author has published a study in which three groups of patients were studied following varicose vein surgery. One group received a strong medical compression stocking, the second group an inelastic bandaging system which achieved 63 mmHg compression in the standing position and an eccentric compression system which achieved 98 mmHg in the standing position. Adverse events after surgery were most frequent in the stocking group with fewer in the inelastic compression bandage group and fewest in the eccentric compression group. A further study has been published by another author in which elastic compression has been compared with eccentric compression following endovenous laser ablation of the saphenous vein. Eccentric compression reduced postoperative pain. Unfortunately, very little data are available to indicate the period for which compression should be applied following varicose vein treatment. Conclusions: In comparison to compression treatments following varicose vein surgery where the actual level of compression has been measured, higher levels of compression are more effective than lower levels in moderating postoperative pain and complications. Strong compression can be achieved by inelastic bandaging or by eccentric compression systems. Far fewer data are available to indicate the duration for which postoperative compression is required. [ABSTRACT FROM AUTHOR]

Wound dressings: ulcer dressings should create and maintain a moist environment on the ulcer surface. It has been shown that in an ulcer with a hard crust and desiccated bed, the healing process is significantly slowed and sometimes completely blocked so favouring infection, inflammation and pain. In contrast a moist environment promotes autolytic debridement, angiogenesis and the more rapid formation of granulation tissue, favours keratinocytes migration and accelerates healing of wounds. Apart from these common characteristics, wound dressings are completely different in other aspects and must be used according to the ulcer stage. In necrotic ulcers, autolytic debridement by means of hydrogel and hydrocolloids or with enzymatic paste is preferred. In case of largely exuding wounds alginate or hydrofibre are indicated. When bleeding occurs alginate is indicated due to its haemostatic power. Where ulcers are covered by granulation tissue, polyurethane foams are preferred. When infection coexists antiseptics are necessary: dressing containing silver or iodine with large antibacterial spectrum have proved to be very effective. In the epithelization stage polyurethane films or membranes, thin hydrocolloids or collagen based dressings are very useful to favour advancement of the healing wound edge. Despite these considerations, a Cochrane review failed to find advantages for any dressing type compared with low-adherent dressings applied beneath compression. Surgical debridement and grafting of wounds, negative wound pressure treatment: surgical and hydrosurgical debridement are indicated in large, necrotic and infected wounds as these treatments are able to get rid of necrotic, infected tissue very quickly in a single surgical session, thereby significantly accelerating wound bed preparation and healing time. Negative wound pressure treatment creating a negative pressure on ulcer bed is able to favour granulation tissue and shorten healing time. In case of hard-to-heal leg ulcers such as large, deep, infected and long-lasting venous ulcers, sharp debridement and skin grafting may favour and shorten ulcer healing. [ABSTRACT FROM AUTHOR]

Aim: To compare the efficacy of compression stockings and inelastic, high-pressure bandages concerning leg volume reduction in patients with chronic leg oedema. Material and methods: Forty-two legs of 30 patients with chronic leg oedema caused by venous stasis were randomized to receive a strong inelastic bandage (IB) or an elastic stocking (ES) exerting a pressure of 23-32 mmHg. Changes in leg oedema were assessed after two and seven days by water displacement volumetry, measurements of leg circumferences and of skin thickness by using Duplex ultrasound. Interface pressure was registered under the compression devices for seven days. Results: There was no significant difference between stockings and bandages, which both produced a significant reduction in leg volume after two days (29.6% [95% CI 7.5-11.8] by ES and 211.5% [95% CI 9.9-13.2%] by IB) and after seven days (213.2% [95% CI 10.4-16.2] by ES and 215.6% [95% CI 12.8-18.4] by IB). Bandages showed a more pronounced reduction in leg circumference and in skin thickness in the calf region. The pressure of IB in the lying position fell from initially 63 to 22 mmHg after two days, but only from 33 to 26 mmHg under ES (median values). The optimal pressure range concerning oedema reduction was found between 40 and 60 mmHg, while higher pressures produced by bandages showed a negative correlation with volume reduction. Conclusions: Compression stockings exerting a pressure of around 30 mmHg are nearly as effective as high-pressure bandages with an initial pressure over 60 mmHg in reducing chronic leg oedema. [ABSTRACT FROM AUTHOR]

The author reflects on research which has compared the effectiveness of elastic compression stockings with inelastic bandages in the treatment of ulcers and has found that elastic stockings are more effective. He suggests that if pressure is not measured no reliable conclusion can be drawn on different outcomes of the two treatments. He argues that additional research needs to be conducted to prove whether elastic stockings are better than properly applied nonelastic bandages.

Background: A too high resting pressure of compression devices is poorly tolerated and may cause skin defects, especially in patients with concomitant arterial occlusive disease. Aim: To investigate whether low compression pressure will improve venous pumping function in patients with venous incompetence. Material and methods: Venous pumping function was assessed in 20 patients with severe reflux in the great saphenous vein by measuring ejection fraction (EF) using strain-gauge plethysmography. Measurements were repeated after application of knee-high medical compression stockings and of inelastic bandages applied with a pressure of 20, 40 and 60 mmHg in the supine position. Results: EF was significantly reduced compared with healthy controls. Compression stockings exerting a median pressure of 27 mmHg (interquartile range [IQR] 25-29) in the supine and 30.5 mmHg (IQR 28.25-34.25) in the standing position produced a moderate, non-significant improvement of EF of 17%. Inelastic bandages with a resting pressure of 20.5 mmHg (IQR 20-22) in the supine position resulting in a standing pressure of 36 mmHg (IQR 33-40.75) led to a significant increase of EF of 61.5% (P < 0.01). A further increase of the resting pressure to 40 and 60 mmHg achieved an increase of the EF of 91% and 98%, respectively (P , 0.001). Conclusions: In patients with venous pumping failure, inelastic bandages produce a significant pressure-dependent increase of EF. A significant improvement in venous pumping function was achieved with inelastic bandages even at a resting pressure of 20 mmHg. [ABSTRACT FROM AUTHOR]

Aim: To investigate the influence of compression bandages, manufactured using materials with different elastic properties, on the impaired venous pumping function in patients with venous insufficiency. Methods: Ejection volume (EV) and ejection fraction (EF) were measured using strain gauge plethysmography distal from the patella without and with elastic and inelastic compression bandages in a total of 30 patients with major venous reflux in the great saphenous vein. The interface pressure of the bandages was measured simultaneously in the medial gaiter area. Normal values of EV and EF were obtained from 15 healthy controls. Results: Patients with venous insufficiency showed a statistically significant reduction of EV and EF compared to controls. Elastic bandages with an average pressure of 42mmHg in the supine position achieved a moderate increase of EV and a significant improvement of EF (p < .01), while inelastic bandages applied with comparable resting pressure (41mmHg) raised EV and EF into a normal range (p < .001). The improvement of the ejection fraction correlates well with the pressure differences between standing and lying (Static Stiffness Index) and between muscle systole and diastole during exercise (Pearson r = 0.69 and 0.74 respectively, p < .001). Elastic bandages applied with high stretch in order to achieve standing pressures comparable to those of inelastic bandages (>60mmHg) led only to a minor improvement of the venous pumping function. Conclusions: Ejected volume and ejection fraction, which are severely reduced in venous insufficiency, can be increased by compression therapy. Inelastic compression is much more effective than elastic bandages, and is able to normalize venous pumping function. With elastic bandages EV and EF always remain below the normal range even when applied with high stretch producing a resting pressure that is barely tolerable. [ABSTRACT FROM AUTHOR]

The aim of this overview is to discuss the role of thigh compression for the management of venous and lymphatic diseases. The most important indications for thigh compression are prevention and treatment of sequelae of superficial vein procedures (surgery or endovenous procedures), prevention and therapy of deep vein thrombosis (DVT), postthrombotic syndrome and lymphoedema. The intended effects depend mainly on narrowing/occlusion of deep and superficial veins on which the body position and the applied pressure play a crucial role. While in the horizontal position thigh veins can be narrowed by the light pressure of a thromboprophylactic stocking, much higher pressure is needed to compress thigh veins effectively during standing and walking. This is shown by magnetic resonance imaging (MRI) performed in the supine and upright position. Using pads, rolls or specially designed devices, the local pressure under conventional compression garments or bandages over a treated vein can be increased considerably. In patients with deep valve incompetence, beneficial haemodynamic effects of strong thigh compression have been demonstrated, but clinical studies in this field are still lacking. Thigh compression reduces oedema in patients with DVT and lymphoedema. [ABSTRACT FROM AUTHOR]

Introduction The adequate use of compression in venous leg ulcer treatment is equally important to patients as well as clinicians. Currently, there is a lack of clarity on contraindications, risk factors, adverse events and complications, when applying compression therapy for venous leg ulcer patients. Methods The project aimed to optimize prevention, treatment and maintenance approaches by recognizing contraindications, risk factors, adverse events and complications, when applying compression therapy for venous leg ulcer patients. A literature review was conducted of current guidelines on venous leg ulcer prevention, management and maintenance. Results Searches took place from 29th February 2016 to 30th April 2016 and were prospectively limited to publications in the English and German languages and publication dates were between January 2009 and April 2016. Twenty Guidelines, clinical pathways and consensus papers on compression therapy for venous leg ulcer treatment and for venous disease, were included. Guidelines agreed on the following absolute contraindications: Arterial occlusive disease, heart failure and ankle brachial pressure index ( ABPI) <0.5, but gave conflicting recommendations on relative contraindications, risks and adverse events. Moreover definitions were unclear and not consistent. Conclusions Evidence-based guidance is needed to inform clinicians on risk factor, adverse effects, complications and contraindications. ABPI values need to be specified and details should be given on the type of compression that is safe to use. Ongoing research challenges the present recommendations, shifting some contraindications into a list of potential indications. Complications of compression can be prevented when adequate assessment is performed and clinicians are skilled in applying compression. [ABSTRACT FROM AUTHOR]

Currently, there are no generally accepted definitions for wounds at risk of infection. In clinical practice, too many chronic wounds are regarded as being at risk of infection, and therefore many topical antimicrobials - in terms of frequency and duration of use - are applied to wounds. Based on expert discussion and current knowledge, a clinical assessment score was developed. The objective of this wounds at risk (W.A.R.) score is to allow decision-making on the indication for the use of antiseptics on the basis of polihexanide. The proposed clinical classification of W.A.R. shall facilitate the decision for wound antisepsis and allow an appropriate general treatment regimen with the focus on the prevention of wound infection. The W.A.R. score is based on a clinically oriented risk assessment using concrete patient circumstances. The indication for the use of antiseptics results from the addition of differently weighted risk causes, for which points are assigned. Antimicrobial treatment is justified in the case of 3 or more points. Copyright © 2011 S. Karger AG, Basel [ABSTRACT FROM AUTHOR]