Our research and development teams operate at a global level and generate synergies from our collective expertise and by drawing on related disciplines. We are also constantly exchanging information at an international level with independent technical institutions, key opinion leaders and multipliers in order to be able to ensure cooperation and knowledge management of the highest order. As part of this process, we also conduct extensive research, the results of which we continually present in workshops, at conferences and symposiums - either in documentation or talks given by our cooperation partners - and also publish in renowned scientific journals. This database contains a large number of these evidence-based scientific articles, most of which have been evaluated by independent assessors:
Achieving healing in a young adult with a venous leg ulcer using a biofilm pathway and short stretch bandagingPoster presented at Wound Care Today 2019 27.02.2019 Milton Keynes, UK
Liam is a 26 year old man who suffered a post trauma DVT when just 18 years old. He has Warfarin therapy and has a history of venous leg ulceration for 8 years. Because of the damage to his primary, deep veins he had developed a collateral venous circulation.
Liam describes having a leg ulcer at a young age as “life changing”. It stopped him playing sport and swimming and it changed how he interacting with friends. Because of his damaged circulation and medication he lived with the constant fear that his leg was going to deteriorate or bleed. Despite this, Liam continued to work full time and support his family.
In the summer of 2018, Liam’s nurse changes his treatment from a combination long-stretch cohesive bandage system, to a cohesive short stretch bandage system. She also implemented a Monofilament fibre biofilm based treatment regime to expedite wound bed preparation and disruption of the biofilm (Morris et al, 2016).
There was a dramatic reduction in leg oedema and improvement in leg shape almost immediately the new bandage system was started. Things continued to improve over the following months. Liam reported that the cohesive short stretch bandage system made “his leg feels much more comfortable with less ridging and less slippage”. His leg shape was much better, and it was easier to wear socks and shoes. Liam said that nobody noticed he had a bandage on.
In December 2018, after 8 years of ulceration, Liam’s venous leg ulcer healed.
This case study demonstrates how learning and implementing new knowledge, technology and skills can translate into improved patient outcomes. By sharing Liam’s story we can really understand the devastating effect a leg ulcer can have, especially on a teenager and young adult.
Liam now has a bespoke plan for the prevention of future venous leg ulcers which will include higher compression during working periods when he will be on his feet for long periods. This is achieved by using short stretch wrap systems to encourage continued self-care and ownership of his long term condition.Products Debrisoft Pad
Assessing the performance of an improved superabsorbent wound dressing:a multi-centre clinical evaluationPoster presented at CICA 2019 20.01.2019 Paris, France
This national, multicentre patient evaluation examines the enhancements that have recently been made to a superabsorbent dressing* and how this product improvement** has led to enhanced performance and improved patient related outcomes. The enhancements are a wider border and more ergonomic shape and a new structure to the superabsorbent polymer which increases absorbency.
The recently developed and improved superabsorbent wound dressing was evaluated in six clinical sites on 27 patients with wounds requiring management of exudate of varying levels.
The mean age of the patients who participated was 70 years and the main wound type was leg ulcer. At the start of the evaluation the surrounding skin was mostly reported to be macerated and/or red and excoriated. Exudate levels were light in 4 cases, moderate in 12 cases and heavy in 11 cases. The improved superabsorbent was used on its own as a primary dressing in only 5 cases and in combination with another primary dressing in 15 cases (7 did not answer the question). A topical antimicrobial was combined with the new superabsorbent in 60% of cases and a contact layer in 20% of cases. It was used under full or reduced compression in 21 cases. In most cases the improved superabsorbent replaced either another superabsorbent or absorbent dressing. The frequency of dressing changes varied from daily to weekly prior to the evaluation with 7 clinicians stating that the new and improved superabsorbent had reduced the frequency of dressing changes. The others either did not comment on this, or did not see a change. Other parameters were rated as good and very good and are outlined in Table 1.
Although the improved superabsorbent dressing includes a very effective wound contact layer, 20% of cases used the product in combination with another contact layer. Use with another contact layer would not be recommended as this is not necessary and increases costs. Superabsorbent dressings are designed for the management of medium to high levels of exudate and should not be considered in low exudate.
The new and improved superabsorbent wound dressing demonstrated clear advantages for clinicians managing exudate. The patient shown in Figure 1 - 3 is still being managed with the improved product as this is the only dressing he doesn’t react to.Further versionsFurther languages
Bedeutung des adäquaten Drucks in der Kompressionstherapie:Basis der erfolgreichen BehandlungDer Hautarzt; Zeitschrift fur Dermatologie, Venerologie, und verwandte Gebiete 2019 70(9) 707714
The pressure exerted by a compression device on a part of the body corresponds to the dosage of the compression therapy. Therefore, the pressure course under compression materials should be investigated in different clinical situations.
MATERIAL AND METHODS
Pressure measurements were carried out under different compression materials in lying, standing and walking positions within the framework of training, self-experimentation and in patients with venous leg ulcers.
The results showed that the pressure varied considerably depending on the material used, the firmness of application, the local configuration (body position) and the time interval between applications. A loss of pressure occurred under each compression therapy, especially under inelastic short-stretch material, mainly due to movement and edema reduction. This pressure loss is decisive for the timing of dressing changes and a reason for the good tolerance of high-pressure levels in mobile patients.
Low pressures are particularly suitable for edema reduction. Hemodynamic effects require higher pressures (60-80 mmHg). For this purpose, inelastic materials are preferred which enable lower pressures when lying down (40-60 mmHg). As compression bandages are too loosely applied by many users, pressure indicators on bandages or adaptive bandages with templates are helpful to apply the material with the correct pressure. As a consequence of these findings it is postulated that, at least in studies comparing different compression media, pressure measurements should be carried out in the future, whereby the measuring point and body position should be documented.PMID 31165190
Biofilm management using monofilament fibre debridement technology: outcomes and clinician and patient satisfactionJournal of Wound Care 2019 28(9) 608622
Best practice in wound bed preparation and biofilm-based wound management includes debridement to create a clean wound bed and to assist in minimising the redevelopment of biofilm. Biofilm that is not removed inhibits healing and redevelops if not prevented from doing so with topical antimicrobial agents. Monofilament fibre debriding technology (MFDT) is used for effective and rapid mechanical debridement of loose material, slough and biofilm. The objective of this evaluation was to determine the clinical effect and consequential levels of health professional and patient satisfaction with the results of a biofilm pathway that included MFDT to achieve debridement.
This non-comparative, open label evaluation was conducted in static and non-static wounds that required debridement. MFDT was used to debride in a two-week evaluation of a biofilm pathway. Wounds were debrided three times in week one and twice in week two. Each debridement was followed by treatment with an antimicrobial dressing. Other care included secondary dressings and compression delivered according to local practice, guidelines and formularies. After the clinical evaluation, health professionals were invited to complete an online survey of the clinical outcomes and their satisfaction with the biofilm pathway.
There were 706 health professionals who provided answers to the survey questions. Wound types evaluated were leg ulcers (67.4%), pressure ulcers (10%), dehisced surgical wounds (1.7%), diabetic foot ulcers (7.4%) and other wounds (13.4%). Of the wounds, 9% were reported as non-static despite the eligibility criteria. Not all wounds followed the pathway. The most frequently-used antimicrobial was silver. Non-antimicrobial products used included all-in-one dressings, other secondary dressings and compression. There was a change in 77% of wounds overall after two weeks. Change was reported almost equally for both static and non-static wounds. Health professionals who did or did not follow the pathway were ‘completely satisfied’ or ‘satisfied’ with the overall clinical outcome 96% and 95%, respectively. Of the patients, 77% were ‘completely satisfied’ or ‘satisfied’ with healing after following the pathway, as reported by the treating health professional.
The biofilm pathway that includes MFDT appears effective. Wounds managed on the pathway were debrided effectively and healing progressed to the satisfaction of both health professionals and patients.Products Debrisoft PadPMID 31513491Further versionsFurther languages
Endoscopic negative pressure therapy (ENPT) for duodenal leakage – novel repair technique using open-pore film (OFD) and polyurethane-foam drainages (OPD)Endoscopy International Open 2019 07(11) 14241431
Background and study aims
Endoscopic negative pressure therapy (ENPT) is used to close transmural defects in the rectum and esophagus. Very few reports have described
ENPT to manage duodenal defects. This study was designed to demonstrate ENPT in a population of 11 patients with transmural duodenal leakages.
Patients and methods
The method of ENPT was adapted for duodenal use. Open-pore polyurethane-foam or a thin, open-pore double-layered film was wrapped around the distal end of a gastroduodenal tube. First, this open-pore element was placed on the inner wound in the duodenum with endoscopy. Second, continuous negative pressure of –125mmHg was applied with an electronic pump. Drains were changed after 2 to 7 days.
Eleven patients were treated with duodenal leaks. Eight defects occurred after operative closure of perforated duodenal ulcers, papillectomy or stricturoplasty, one anastomotic leakage after Billroth – 1 distal gastric resection, one iatrogenic perforation in endoscopic retrograde cholangiopancreatography, and one by a surgical drain. Median duration of therapy was 11 days (range 7 – 24 days). Complete healing of defects was achieved in all patients.
ENPT is an innovative endoscopic alternative for treatment of transmural duodenal defects.
Was gibt es neues bei der endoskopischen Therapie der AnastomoseninsuffizienzWas gibt es Neues in der Chirurgie? 2019 Jahresband 2019 95107
Anastomoseninsuffizienz (AI) des Gastrointestinaltraktes sind schwerwiegende chirurgische Komplikationen in der Visceralchirurgie, die den Patienten durch eine deutlich erhöhte Morbidität und Mortalität gefärden. Der Erfolg des operativen Eingriffes ist eingeschränkt.
Hemostatic wound dressings:Predicting their effects by in vitro testsJournal of biomaterials applications 2019 33(9) 12851297
Application of controlled in vitro techniques can be used as a screening tool for the development of new hemostatic agents allowing quantitative assessment of overall hemostatic potential.
MATERIALS AND METHODS
Several tests were selected to evaluate the efficacy of cotton gauze, collagen, and oxidized regenerated cellulose for enhancing blood clotting, coagulation, and platelet activation.
Visual inspection of dressings after blood contact proved the formation of blood clots. Scanning electron microscopy demonstrated the adsorption of blood cells and plasma proteins. Significantly enhanced blood clot formation was observed for collagen together with β-thromboglobulin increase and platelet count reduction. Oxidized regenerated cellulose demonstrated slower clotting rates not yielding any thrombin generation; yet, led to significantly increased thrombin-anti-thrombin-III complex levels compared to the other dressings. As hemostyptica ought to function without triggering any adverse events, induction of hemolysis, instigation of inflammatory reactions, and initiation of the innate complement system were also tested. Here, cotton gauze provoked high PMN elastase and elevated SC5b-9 concentrations.
A range of tests for desired and undesired effects of materials need to be combined to gain some degree of predictability of the in vivo situation. Collagen-based dressings demonstrated the highest hemostyptic properties with lowest adverse reactions whereas gauze did not induce high coagulation activation but rather activated leukocytes and complement.Products Suprasorb CPMID 30791851
Role of endoscopic vacuum therapy in the management of gastrointestinal transmural defectsWorld journal of gastrointestinal endoscopy 2019 11(5) 329344
A gastrointestinal (GI) transmural defect is defined as total rupture of the GI wall, and these defects can be divided into three categories: perforations, leaks, and fistulas. Surgical management of these defects is usually challenging and may be associated with high morbidity and mortality rates. Recently, several novel endoscopic techniques have been developed, and endoscopy has become a first-line approach for therapy of these conditions. The use of endoscopic vacuum therapy (EVT) is increasing with favorable results. This technique involves endoscopic placement of a sponge connected to a nasogastric tube into the defect cavity or lumen. This promotes healing via five mechanisms, including macrodeformation, microdeformation, changes in perfusion, exudate control, and bacterial clearance, which is similar to the mechanisms in which skin wounds are treated with commonly employed wound vacuums. EVT can be used in the upper GI tract, small bowel, biliopancreatic regions, and lower GI tract, with variable success rates and a satisfactory safety profile. In this article, we review and discuss the mechanism of action, materials, techniques, efficacy, and safety of EVT in the management of patients with GI transmural defects.PMID 31205594