Våra forsknings- och utvecklingsteam arbetar över hela världen och skapar synergier genom vår expertkunskap och berörda fackområden. Vi har ett internationellt utbyte med oberoende fackinstitut, ledande opinionsbildare och multiplikatorer för att kunna garantera samarbetsledning och kunskapsledning på högsta nivå. Inom ramen för detta genomför vi omfattande forskning som kontinuerligt presenteras av våra samarbetspartners i form av posters eller föredrag på kongresser samt på symposier och i workshops, och publiceras i erkända vetenskapliga tidskrifter. Den största delen av de evidensbaserade fackpublikationerna som bedömts av oberoende experter ställer vi till förfogande i den här databasen:
Wound bed preparation of a sacral pressure injury for dermal template using autolytic debridementPoster presented at Wounds Australia 2022 Conference 14.09.2022 Sydney
A 65-year-old male bed bound patient with a BMI of 16 kg/m², a schizoid personality disorder, former strong alcoholism and an MCA stroke in 2019 with low rehabilitation potential, was presented with a sacral pressure injury to the District Nursing Service.
Action(s) taken/ treatment provided
The pressure injury was subjected to sharp debridement to remove the hard necrotic tissue. For further autolytic debridement, the wound was treated with a hydrogel wound dressing*. For exudate management, a superabsorbent wound dressing** was used as a secondary association. In the first week, the wound was additionally debrided mechanically. However, since this resulted in more arterial bleeding, treatment completely switched to autolytic debridement. Dressing changes were completed daily by Rest Home staff with weekly input from the District Nurse.
After 5 days of autolytic debridement, dark eschar started to soften. Further maceration of the peri wound skin was prevented by the superabsorbent dressing via absorbing high quantities of exudate. After 15 days, the necrotic areas were starting to lift up. Granulation on some areas of the wound bed developed. After 28 days, some edges of the wound bed had partially healed. After 43 days the wound had healed to such an extent that autolytic debridement was no longer indicated and application of a dermal template commenced.
The hydrogel wound dressing in combination with the superabsorbent dressing were able to debride and prepare the wound bed for the next step of application with a dermal template.
The difficult case: NPWT for extensive soft tissue defects of the lower extremityPoster presented at EWMA 2022 23.05.2022 Paris, France
We report on the case of a 14-year-old girl with extensive soft tissue defects on the right lower extremity up to the right hip following a traffic accident. The patient suffered a subtotal amputation of the right lower extremity with a rupture of the external iliac artery and the iliac vein.
After CTA, the pulseless, ischemic leg was treated with autologous arterial und venous vascular graft. Perfusion resumed 4 hours post-accident. Osteosynthesis was carried out using an external fixator. Despite fasciotomy, extensive soft tissue necrosis occurred on the right lower extremity. Due to pre-terminal multiple organ failure caused by SIRS, a large-area necrosectomy was performed and NPWT started. The occlusive dressing was applied to the entire right lower extremity including the anogenital area up to the iliac crest using a tubular bandage*.
Results / Discussion:
This method allowed for sufficient negative pressure on the entire hip area and the entire right lower extremity. Septic condition improved immediately. After stimulating wound granulation, the secondary, serial split skin coverage of the defects was possible.
In the case of extensive soft tissue defects on the lower extremity with deep substance defects in the area of the hip and simultaneous external fixation on the pelvic ring as well as cystofix and colostoma creation, the establishment of an NPWT system typically is difficult and time-consuming. With the tubular bandage it was possible to use a reliable, reproducible, time-saving occlusive and elastic system for the NPWT.
Multinational observational study on the performance, handling and safety of a new alginate wound dressingPoster presented at EWMA 2022 23.05.2022 Paris, France
Alginate dressings play an important role in modern wound care. Areas of application include exudate management, autolytic debridement and hemostasis. Users of the alginate dressings have high demands on performance, handling and safety. In order to meet these requirements, a new alginate wound dressing* was developed from a mixture of 80% alginate and 20% viscose. In the study presented, the wound dressing was tested for the properties described.
An observational study was carried out in clinical as well as outpatient settings at study centers in Germany, Austria and Poland. The users were asked to treat up to 8 patients with the new alginate according to the instructions for use. All patients were adults and suffered from highly exuding wounds which were either pressure injuries, arterial/venous ulcers, diabetic ulcers or postoperative wounds.
Results / Discussion:
The performance, measured in the parameters of time required for application and adaptation to the wound bed in dry and gelled conditions, was rated on average by users as good or very good/excellent on a 6-point Likert scale. More than 90% of the users stated that they could achieve their treatment goals, in particular exudate management, autolytic debridement and hemostasis. All handling parameters were also rated as good or very good on average. The alginate caused almost no maceration of the wound edge and was usually removed very easily in one piece.
The alginate dressing met the performance, handling and safety requirements and was very positively received by users.Further versionsFurther languages
Management of esophageal perforations in infants by endoscopic vacuum therapy: A single center case seriesBMC gastroenterology 2022 22(1) 282
Endoscopic vacuum therapy (EVT) has become a standard treatment method for esophageal perforations in adults. However, experience with EVT in infants is scarce. In this retrospective case series, we report on four very young infants who were successfully treated with EVT for esophageal perforations of different etiology.
Four infants were diagnosed with esophageal perforations on day 7, 32, 35 and 159 of life, respectively. The youngest one was prematurely born in the 31st week of pregnancy weighing 980 g only. Three infants had perforations due to foreign body insertion (nasogastric tube or pulling through of percutaneous endoscopic gastrostomy (PEG) tube through the esophagus). One child had an anastomotic dehiscence after Foker's surgery for atresia. In three children EVT was applied as first-line therapy for perforation, in one child EVT was a rescue therapy due to persisting leakage after surgical closure involving thoracotomy. Depending on the esophageal diameter, either an open-pore drainage film or polyurethane sponge was attached to a single-lumen 8 Fr suction catheter, endoscopically (or fluoroscopically by wire-guidance) placed into the esophagus (intraluminal EVT) and supplied with continuous negative pressure (ranging between 75 and 150 mmHg). The EVT system was exchanged twice per week.
Complete closure of the perforation/leakage could be achieved in all four infants (100%) after 22 days of continuous EVT (median value; range 7-39) and 4.5 EVT exchanges (median value; range 1-12). No serious adverse events occurred.
EVT is an effective and safe addition to our therapeutic armamentarium in the management of esophageal perforations irrespective of its etiology. Here we prove the feasibility of EVT even in very young infants. The use of an extra thin vacuum open-pore drainage film is helpful to cope with the small esophageal diameter. EVT settings and exchange rates similar to those known from adult treatment were used.PMID 35658914
Comparison of the efficacy of novel non-invasive mechanical debridement methods – sterile sponge, monofilament fibre cloth and non-woven cloth impregnated with sodium hyaluronate and phospholipids in relation to traditional sterile gauzeAdvances in Dermatology and Allergology 2022 39(5) 856864
Introduction: According to the European guidelines, the first step for local wound preparation is debridement, which stands for removing of devitalized tissue such as slough or necrosis. There are numerous types of debridement, but not all of them can be performed by non-specialists. Most of the research investigating efficiency of novel debridement products are carried out or funded by pharmaceutical companies.
Aim: To compare the efficacy of relative necrotic tissue removal after 30 days on patients subjected to debridement with sterile sponge, monofilament fibre cloth, non-woven cloth impregnated with sodium hyaluronate and phospholipids and traditional sterile gauze.
Material and methods: By use of photographic documentation at 7 days’ intervals and planimetry methods, the total wound surface area and sloughy tissue area was measured.
Results: Results have shown that monofilament cloth was the most effective, removing on average 63.44 ±32.91% of necrotic tissue after the first procedure and 74.65 ±30.95% within 30 days of application, in comparison to the sterile gauze group that had on average only 23.53 ±19.16% of necrotic tissue removed at day 0 and 44.95 ±31.47% removed at day 30. Moreover, patients using all 3 products tested reported higher satisfaction with that treatment than those treated with gauze.
Conclusions: Results imply that all those methods could be considered as they are well accepted by patients and cause less pain during the procedure, which is essential for good compliance and complete resolution of the lesions.
Clinical experience using a monofilament fiber cleansing and debriding technology for various skin conditions.Journal of Drugs in Dermatology 2022 21(11) 11731180
Background: Gentle skin cleansing and exfoliation and the use of moisturizers as an adjunct to medical treatment should be part of the prevention, treatment, and maintenance of cutaneous conditions such as acne vulgaris (acne) psoriasis, and xerosis. A monofilament fiber debriding technology (MFDT) is used for effective, safe, and rapid skin cleansing and exfoliation and debris, slough, and biofilm removal. The current review addresses the clinical experience using MFDT for various cutaneous conditions that require cleansing or exfoliation or both and how to combine it with medical treatment.
Methods: A literature review explored clinical insights into the role of skin cleansing and exfoliation for patients with various dermatological conditions.
The searches yielded 29 publications, 7 guidelines/algorithms, 13 reviews, 8 clinical studies, and one in vitro study.
Results: Mechanical cleansing using a device can be helpful; however, avoid injury of the skin as it may result in thickening of the epidermis leading to hyperkeratosis and disruption of the skin barrier. Clinical experience with MFDT for acne, psoriasis, atopic dermatitis, and xerosis is discussed. Additionally, MFDT was used to exfoliate hyperkeratosis, actinic keratosis, and traumatic skin tattoos.
Conclusions: Mechanical cleansing using MFDT was shown to be safe and beneficial for skin cleansing and exfoliation of various cutaneous conditions; however, only anecdotal evidence or small studies are available to support its use for these conditions.
Het verhaal van Amber: Complicaties na een Gastric bypassNederlands Tijdschrift Voor Huidzorg 2022 12(2)
Amber is 42 jaar en moeder van 3 prachtige kinderen. Van kleins af aan was ze al redelijk gezet en dat bleef zo ondanks veel pogingen om af te vallen. Haar vader is overleden vlak na haar geboorte, ook hij was veel te zwaar en had te hoge cholesterol waarden. Amber dacht: dit gaat mij niet gebeuren en ik ga hulp zoeken om af te vallen. Ze kwam in 2016 in het ziekenhuis in Almelo bij de internist terecht en kreeg daar allerlei onderzoeken inclusief een erfelijkheidsonderzoek in verband met haar vader. Tijdens de tweede afspraak bij de internist werd ze goed met haar neus op de feiten gedrukt. Amber: ‘Hij zei, er moet gauw iets gebeuren want anders wordt u geen 38 jaar oud. Hier schrok ik dus behoorlijk van. Mijn bloeddruk was te hoog, ik rookte, had diabetes en een super hoog cholesterol gehalte.’ Al snel kreeg Amber groen licht voor een gastric bypass. ‘Maar daarvoor moest ik wel een jaar lang een voorbereidend traject volgen’. De operatie vond uiteindelijk plaats in april 2017.
Endoscopic vacuum therapy in the upper gastrointestinal tract: When and how to use itLangenbeck's archives of surgery 2022
Endoscopic vacuum therapy (EVT) has emerged as a novel treatment option for upper gastrointestinal wall defects. The basic principle of action of EVT entails evacuation of secretions, removal of wound debris, and containment of the defect. Furthermore, there is increasing evidence that EVT reduces interstitial edema, increases oxygen saturation, and promotes tissue granulation and microcirculation. Various devices, such as macroporous polyurethane sponge systems or open-pore film drains, have been developed for specific indications. Depending on the individual situation, EVT devices can be placed in- or outside the intestinal lumen, as a stand-alone procedure, or in combination with surgical, radiological, and other endoscopic interventions.
The aim of this narrative review is to describe the current spectrum of EVT in the upper gastrointestinal tract and to assess and summarize the related scientific literature.
There is growing evidence that the efficacy of EVT for upper GI leakages exceeds that of other interventional treatment modalities such as self-expanding metal stents, clips, or simple drainages. Owing to the promising results and the excellent risk profile, EVT has become the therapy of choice for perforations and anastomotic leakages of the upper gastrointestinal tract in many centers of expertise. In addition, recent clinical research suggests that preemptive use of EVT after high-risk upper gastrointestinal resections may play an important role in reducing postoperative morbidity.PMID 35041047
Pre-emptive active drainage of reflux (PARD) in Ivor-Lewis oesophagectomy with negative pressure and simultaneous enteral nutrition using a double-lumen open-pore film drain (dOFD)Surgical endoscopy 2022
Postoperative reflux can compromise anastomotic healing after Ivor-Lewis oesophagectomy (ILE). We report on Pre-emptive Active Reflux Drainage (PARD) using a new double-lumen open-pore film drain (dOFD) with negative pressure to protect the anastomosis.
To prepare a dOFD, the gastric channel of a triluminal tube (Freka®Trelumina, Fresenius) is coated with a double-layered open-pore film (Suprasorb®CNP drainage film, Lohmann & Rauscher) over 25 cm. The ventilation channel is blocked. The filmcoated segment is placed in the stomach and the intestinal feeding tube in the duodenum. Negative pressure is applied with an electronic vacuum pump (- 125 mmHg, continuous suction) to the gastric channel. Depending on the findings in the endoscopic control, PARD will either be continued or terminated.
PARD was used in 24 patients with ILE and started intraoperatively. Healing was observed in all the anastomoses. The median duration of PARD was 8 days (range 4-21). In 10 of 24 patients (40%) there were issues with anastomotic healing which we defined as "at-risk anastomosis". No additional endoscopic procedures or surgical revisions to the anastomoses were required.
PARD with dOFD contributes to the protection of anastomosis after ILE. Negative pressure applied to the dOFD (a nasogastric tube) enables enteral nutrition to be delivered simultaneously with permanent evacuation and decompression.PMID 34973079