Als na afloop van een brandincident een stoffelijk overschot wordt aangetroffen, is het van belang dat de causaliteit tussen de brand en het overlijden wordt onderzocht. Brand is zeer destructief voor het menselijk lichaam. Dit bemoeilijkt de interpretatie van onderzoeksbevindingen aan een lichaam. Er zijn diverse verschijnselen die tot op zekere hoogte duiden op vitaliteit (de betrokkene was levend) ten tijde van de brand. In dit artikel worden deze verschijnselen tegen het licht gehouden. Op basis van de huidige wetenschappelijke theorieën bestaan er geen verschijnselen die leiden tot de eenduidige conclusie over al dan niet vitale blootstelling. Wel kunnen verschijnselen een vermoeden van vitale blootstelling tot op zekere hoogte ondersteunen. Ontbreken de verschijnselen, dan is het niet mogelijk om een conclusie te trekken; de afwezigheid is geen bewijs van overlijden vóór het ontstaan van de brand. Om in de rechtszaal een uitspraak te kunnen doen over de causaliteit tussen brand en overlijden, wordt het noodzakelijk geacht om de waarde voor de aannemelijkheid van vitale blootstelling per verschijnsel te motiveren.
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Background: Tangential excision of burned tissue followed by skin grafting is the cornerstone of burn surgery. Hydrosurgery has become popular for tangential excision, with the hypothesis that enhanced preservation of vital dermal tissue reduces scarring. The aim of this trial was to compare scar quality after hydrosurgical versus conventional debridement before split-skin grafting. Methods: A double-blind randomized within-patient multicentre controlled trial was conducted in patients with burns that required split-skin grafting. One wound area was randomized to hydrosurgical debridement and the other to Weck knife debridement. The primary outcome was scar quality at 12 months, assessed with the observer part of the Patient and Observer Scar Assessment Scale (POSAS). Secondary outcomes included complications, scar quality, colour, pliability, and histological dermal preservation. Results: Some 137 patients were randomized. At 12 months, scars of the hydrosurgical debrided wounds had a lower POSAS observer total item score (mean 2.42 (95 per cent c.i. 2.26 to 2.59) versus 2.54 (95 per cent c.i. 2.36 to 2.72; P = 0.023)) and overall opinion score (mean 3.08 (95 per cent c.i. 2.88 to 3.28) versus 3.30 (95 per cent c.i. 3.09-3.51); P = 0.006). Patient-reported scar quality and pliability measurements were significantly better for the hydrosurgically debrided wounds. Complication rates did not differ between both treatments. Histologically, significantly more dermis was preserved with hydrosurgery (P < 0.001). Conclusion: One year after surgery scar quality and pliability was better for hydrosurgically debrided burns, probably owing to enhanced histological preservation of dermis. Registration number: Trial NL6085 (NTR6232 (http://www.trialregister.nl)).
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The objective of this thesis is to make a first step towards prevention of the progression of chronic venous disease and the development of a first venous leg ulcer in chronic venous disease patients. The aim is to identify chronic venous disease patients at risk of developing more severe clinical stages, provide insight in the lifestyle related risk factors, and provide an overview of current chronic venous disease care in the Netherlands.
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This report presents the highlights of the 7th European Meeting on Molecular Diagnostics held in Scheveningen, The Hague, The Netherlands, 12-14 October 2011. The areas covered included molecular diagnostics applications in medical microbiology, virology, pathology, hemato-oncology,clinical genetics and forensics. Novel real-time amplification approaches, novel diagnostic applications and new technologies, such as next-generation sequencing, PCR lectrospray-ionization TOF mass spectrometry and techniques based on the detection of proteins or other molecules, were discussed. Furthermore, diagnostic companies presented their future visions for molecular diagnostics in human healthcare.
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RationaleBij bio-elektrische impedantieanalyse (BIA)-metingen wordt doorgaans een paar elektroden dorsaal op de rechterhand geplaatst (positie A) en een paar op de voet. Bij patiënten met kwetsbare huid, littekens of wonden is deze dorsale handplaatsing niet altijd mogelijk. Deze studie vergelijkt de overeenstemming van BIA-metingen bij zeven alternatieve plaatsingen met positie A.MethodeBIA-metingen werden uitgevoerd met de Bodystat-500 met behulp van acht combinaties van handelektroden: op de dorsale zijde van de hand (positie A) of dorsale zijde hand-onderarm (positie B en C); op de palmaire zijde van de hand (positie D) of palmaire zijde hand-onderarm (positie E en F) of gemengd palmair-dorsale zijde van de hand (positie G en H). ICC's werden gebruikt om alle uitkomsten te vergelijken met positie A. Veranderingen in vetmassa ∆FM, vetvrije massa ∆FFM en appendiculaire skeletspiermassa ∆ASMM werden berekend met behulp van de formule van Kyle.ResultatenZeventig gezonde Kaukasische deelnemers werden gemeten: mediane leeftijd 22 jaar, IQR 21-23; gemiddelde BMI 22,8 ± 2,5 kg/m². Elektrodeposities D, G en H toonden een ICC van 0,99-1,00 voor ∆FM, ∆FFM en ∆ASMM, met minimale veranderingen in ∆FFM en ∆FM: 0,1–0,4 kg ± 0,3 kg en ∆ASMM: 0,0–0,2 kg ± 0,2 kg. Metingen op positie B, C, E en F toonden significante en klinisch relevante verschillen met ∆FM en ∆FFM: 3,8–4,0 kg ± 1,1 kg en ∆ASMM: 2,0–2,1 kg ± 0,6 kg, met ICC's van 0,96-0,97.ConclusieAls alternatief voor de typische elektrodeplaatsing op de dorsale zijde van de hand toont deze studie aan dat drie alternatieve plaatsingen uitstekende overeenstemming geven met slechts minimale veranderingen in FFM, FM en ASMM. In de praktijk dient het plaatsen van elektroden op meer proximale posities op de onderarm te worden vermeden. Alternatief bevelen we een gemengde of palmaire elektrodeplaatsing op de hand aan.
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Standard treatment for large burns is transplantation with meshed split skin autografts (SSGs). A disadvantage of this treatment is that healing is accompanied by scar formation. Application of autologous epidermal cells (keratinocytes and melanocytes) may be a suitable therapeutic alternative, since this may enhance wound closure and improve scar quality. A prospective, multicenter randomized clinical trial was performed in 40 adult patients with acute full thickness burns. On two comparable wound areas, conventional treatment with SSGs was compared to an experimental treatment consisting of SSGs in combination with cultured autologous epidermal cells (ECs) seeded in a collagen carrier. The primary outcome measure was wound closure after 5-7 days. Secondary outcomes were safety aspects and scar quality measured by graft take, scar score (POSAS), skin colorimeter (DermaSpectrometer) and elasticity (Cutometer). Wound epithelialization after 5-7 days was significantly better for the experimental treatment (71%) compared to the standard treatment (67%) (p = 0.034, Wilcoxon), whereas the take rates of the grafts were similar. No related adverse events were recorded. Scar quality was evaluated at 3 (n = 33) and 12 (n = 28) months. The POSAS of the observer after 3 and 12 months and of the patient after 12 months were significantly better for the experimental area. Improvements between 12% and 23% (p ≤ 0.010, Wilcoxon) were detected for redness, pigmentation, thickness, relief, and pliability. Melanin index at 3 and 12 months and erythema index at 12 months were closer to normal skin for the experimental treatment than for conventional treatment (p ≤ 0.025 paired samples t-test). Skin elasticity showed significantly higher elasticity (p = 0.030) in the experimental area at 3 months follow-up. We showed a safe application and significant improvements of wound healing and scar quality in burn patients after treatment with ECs versus SSGs only. The relevance of cultured autologous cells in treatment of extensive burns is supported by our current findings.
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Goed om te zien dat je geïnteresseerd bent in onze content. Onafhankelijke informatie is alleen niet gratis. Je mag onze artikelen uitsluitend kopiëren voor persoonlijk gebruik. Zo zal je geen inbreuk maken op onze Algemene Voorwaarden. Vragen? Stuur een e-mail naar: marketing@ntvg.nl.Voor het instellen van de optimale therapie van brandwonden is een vroege, accurate bepaling van brandwondendiepte belangrijk. De meest gebruikte techniek om brandwondendiepte te bepalen is de klinische inschatting. Dit is een goedkope techniek, maar niet de meest accurate. ‘Laser-doppler-imaging’ is een techniek waarmee, door van het meten van de dermale perfusie, een accuratere (> 95%) inschatting van brandwondendiepte kan worden gemaakt. De hypothese is dat de introductie van laser-doppler-imaging zal leiden tot een snellere keuze voor het wel of niet verrichten van een operatie, met mogelijk een kortere ligduur en lagere kosten tot het gevolg. Om deze hypothese te testen, loopt er momenteel een gerandomiseerd gecontroleerd onderzoek in de Nederlandse brandwondencentra.
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Objective: The aim of this study was to obtain insight in specific elements influencing the use, non-use, satisfaction, and dissatisfaction of ankle foot orthoses (AFOs) and the presence of underexposed problems with respect to AFOs. Methods: A questionnaire was composed to obtain information from AFO users to investigate the variables associated with satisfaction and the relation between these variables. A specific feature of this study was the systematic analysis of the remarks made by the respondents about their AFO. Quantitative data analyses were used for analysing the satisfaction and qualitative analyses were used analysing the remarks of the respondents. A total of 211 users completed the questionnaire. Results: Our survey showed that 1 out of 15 AFOs were not used at all. About three quarters of the AFO users were satisfied and about one quarter was dissatisfied. Females and users living alone reported relatively high levels of dissatisfaction, especially in the field of dimensions, comfort, weight, safety and effectiveness. Dissatisfaction with respect to off-the-shelf AFOs for the item durability was higher than that for custom-made AFOs. In the delivery and maintenance process the items ‘maintenance’, ‘professionalism’ and ‘delivery follow-up’ were judged to be unsatisfactory. A large number of comments were made by the respondents to improve the device or process, mainly by the satisfied AFO users. These comments show that even satisfied users experience many problems and that a lot of problems of AFO users are ‘underexposed’. Conclusion: To improve user satisfaction, the user practice has to be identified as an important sub-process of the whole orthopaedic chain especially in the diagnosis and prescription, delivery tuning and maintenance, and evaluation phase.
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Echinoderm mass mortality events shape marine ecosystems by altering the dynamics among major benthic groups. The sea urchin Diadema antillarum, virtually extirpated in the Caribbean in the early 1980s by an unknown cause, recently experienced another mass mortality beginning in January 2022. We investigated the cause of this mass mortality event through combined molecular biological and veterinary pathologic approaches comparing grossly normal and abnormal animals collected from 23 sites, representing locations that were either affected or unaffected at the time of sampling. Here, we report that a scuticociliate most similar to Philaster apodigitiformis was consistently associated with abnormal urchins at affected sites but was absent from unaffected sites. Experimentally challenging naïve urchins with a Philaster culture isolated from an abnormal, field-collected specimen resulted in gross signs consistent with those of the mortality event. The same ciliate was recovered from treated specimens postmortem, thus fulfilling Koch’s postulates for this microorganism. We term this condition D. antillarum scuticociliatosis.
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At this moment, no method is available to objectively estimate the temperature to which skeletal remains have been exposed during a fire. Estimating this temperature can provide crucial information in a legal investigation. Exposure of bone to heat results in observable and measurable changes, including a change in colour. To determine the exposure temperature of experimental bone samples, heat related changes in colour were systemically studied by means of image analysis. In total 1138 samples of fresh human long bone diaphysis and epiphysis, varying in size, were subjected to heat ranging from room temperature to 900 °C for various durations and in different media. The samples were scanned with a calibrated flatbed scanner and photographed with a Digital Single Lens Reflex camera. Red, Green, Blue values and Lightness, A-, and B-coordinates were collected for statistical analysis. Cluster analysis showed that discriminating thresholds for Lightness and B-coordinate could be defined and used to construct a model of decision rules. This model enables the user to differentiate between seven different temperature clusters with relatively high precision and accuracy. The proposed decision model provides an objective, robust and non-destructive method for estimating the exposure temperature of heated bone samples.
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