BACKGROUND: In the last decades, autologous fat grafting has been used to treat adherent dermal scars. The observed regenerative and scar-reducing properties have been mainly ascribed to the tissue-derived stromal vascular fraction (tSVF) in adipose tissue. Adipose tissue's components augment local angiogenesis and mitosis in resident tissue cells. Moreover, it promotes collagen remodeling. We hypothesize that tSVF potentiates fat grafting-based treatment of adherent scars. Therefore, this study aims to investigate the effect of tSVF-enriched fat grafting on scar pliability over a 12-month period.METHODS AND DESIGN: A clinical multicenter non-randomized early phase trial will be conducted in two dedicated Dutch Burn Centers (Red Cross Hospital, Beverwijk, and Martini Hospital, Groningen). After informed consent, 46 patients (≥18 years) with adherent scars caused by burns, necrotic fasciitis, or degloving injury who have an indication for fat grafting will receive a sub-cicatricic tSVF-enriched fat graft. The primary outcome is the change in scar pliability measured by the Cutometer between pre- and 12 months post-grafting. Secondary outcomes are scar pliability (after 3 months), scar erythema, and melanin measured by the DSM II Colormeter; scar quality assessed by the patient and observer scales of the Patient and Observer Scar Assessment Scale (POSAS) 2.0; and histological analysis of scar biopsies (voluntary) and tSVF quality and composition. This study has been approved by the Dutch Central Committee for Clinical Research (CCMO), NL72094.000.20.CONCLUSION: This study will test the clinical efficacy of tSVF-enriched fat grafting to treat dermal scars while the underlying working mechanism will be probed into too.
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BACKGROUND: Burn survivors are frequently faced with disfiguring scars. Various techniques exist to improve scar appearance, such as laser treatment and dermabrasion. Next to that, surgical reconstruction, such as scar excision is an option. This randomized controlled trial investigates whether a larger burn scar can be excised using a skin-stretching device for wound closure, thereby optimizing use of adjacent healthy skin. This technique may allow scar excision in a one-step procedure instead of two or more steps, which is necessary for serial excision and tissue expansion.METHODS: Two arms were compared: scar excision and closure by skin stretch and scar excision without additional techniques. The primary outcome measure was scar surface area reduction. In addition, complications were registered.RESULTS: Fifteen patients were randomized for skin stretch and 15 patients were randomized for scar excision only. In the skin stretch group, 10 of 15 scars were completely excised compared with three of 15 in the scar excision-only group (p = 0.025). In the skin stretch group, a significantly larger reduction in scar area was achieved: 95 ± 11 percent of the scar was excised versus 78 ± 17 percent in the scar excision-only group (p = 0.003). One patient in the skin stretch group and three patients in the scar excision-only group experienced partial wound dehiscence (p = 0.598).CONCLUSIONS: In burn scar reconstructions, a significantly larger reduction in scar area can be achieved using a skin-stretching device compared with scar excision with no additional techniques, without an increased risk of complications. It was shown that skin stretching is of added value for scars that cannot be excised in a one-step procedure.
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OBJECTIVE: To examine the use of a submaximal exercise test in detecting change in fitness level after a physical training program, and to investigate the correlation of outcomes as measured submaximally or maximally.DESIGN: A prospective study in which exercise testing was performed before and after training intervention.SETTING: Academic and general hospital and rehabilitation center.PARTICIPANTS: Cancer survivors (N=147) (all cancer types, medical treatment completed > or =3 mo ago) attended a 12-week supervised exercise program.INTERVENTIONS: A 12-week training program including aerobic training, strength training, and group sport.MAIN OUTCOME MEASURES: Outcome measures were changes in peak oxygen uptake (Vo(2)peak) and peak power output (both determined during exhaustive exercise testing) and submaximal heart rate (determined during submaximal testing at a fixed workload).RESULTS: The Vo(2)peak and peak power output increased and the submaximal heart rate decreased significantly from baseline to postintervention (P<.001). Changes in submaximal heart rate were only weakly correlated with changes in Vo(2)peak and peak power output. Comparing the participants performing submaximal testing with a heart rate less than 140 beats per minute (bpm) versus the participants achieving a heart rate of 140 bpm or higher showed that changes in submaximal heart rate in the group cycling with moderate to high intensity (ie, heart rate > or =140 bpm) were clearly related to changes in VO(2)peak and peak power output.CONCLUSIONS: For the monitoring of training progress in daily clinical practice, changes in heart rate at a fixed submaximal workload that requires a heart rate greater than 140 bpm may serve as an alternative to an exhaustive exercise test.
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In this study, the outcome of treatment with Flammacerium in burn patients is studied. The retrospective study involved patients with acute burns admitted to the Burn Centre of Martini Hospital, Groningen, The Netherlands, between 2009 and 2014. The outcome parameters were mortality, complications (noninfectious and infectious), need of surgery, and length of stay. The group of patients consisted of 853 patients, of which 554 were male (64.9%). There were 23 patients with a total burn size of 40% TBSA or more (2.7%). In total, 13 of the 853 patients (1.5%) died, and none of them were children (<16 years). The overall mortality in the group of patient with burns >40% TBSA was 30.4%. In the elderly group (>70 years), the mortality rate was 6.3%. Treatment with Flammacerium is applicable in all thermal burn patients. Especially children, elderly patients, and patients with severe burns can benefit from a more conservative treatment with Flammacerium whereby the first operation can be postponed until the patient is stabilized and in which the wounds can be covered directly with skin transplants.
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BACKGROUND: The face is a very frequent site of burn injuries. This multicenter, randomized, controlled trial thus investigates the effectiveness of cerium nitrate-silver sulfadiazine in the treatment of facial burns compared with silver sulfadiazine.METHODS: Adult patients with acute facial burns admitted to Dutch burn centers were randomized to treatment with either cerium nitrate-silver sulfadiazine or silver sulfadiazine. Primary outcome was need for surgery and time to wound healing. Aesthetic and functional outcome was assessed at 3, 6, and 12 months after burn.RESULTS: From March of 2006 until January of 2009, 179 patients were randomized and 154 could be included. The two groups of patients (cerium nitrate-silver sulfadiazine group, n=78; silver sulfadiazine group, n=76), were comparable regarding sex, age, percentage total body surface area burned, and cause. During admission, four patients died, leaving 77 and 73 patients for primary analyses, respectively. Surgery was required in 13 (16.9 percent) compared with 15 patients (20.5 percent) (p=0.57; odds ratio, 0.8; 95 percent CI, 0.3 to 1.8), respectively. Median time to wound healing was 11.0 days in the cerium nitrate-silver sulfadiazine group (interquartile range, 7.0 to 15.0) and 9.0 days for silver sulfadiazine group (interquartile range, 5.0 to 15.75) (p=0.17). There were no significant differences in functional and aesthetic outcome.CONCLUSIONS: No differences were found in effectiveness of both treatments. The vast majority of facial burns do not require surgery, and treatment with cerium nitrate-silver sulfadiazine and silver sulfadiazine leads to satisfactory outcome, both aesthetically and functionally.
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Het doel van de klinische forensische zorg, of meer specifiek de tbs-maatregel, is het beveiligen van de maatschappij; op korte termijn door iemand uit de maatschappij te halen en op langere termijn door behandeling gericht op het verlagen van risicofactoren en het opbouwen of versterken van beschermende factoren. In de media verschijnen met enige regelmaat kritische verhalen over de forensische zorg, meestal naar aanleiding van een ernstig incident, zoals een delict gepleegd door een tbs-patiënt op verlof. De vraag die daarbij steeds wordt opgeworpen, is hoe effectief de tbs-maatregel en behandeling in de forensische zorg is. Het is logisch dat er maatschappelijke onrust ontstaat bij ernstige incidenten en de opgeworpen vragen vanuit de maatschappij zijn terecht. Toch is enige nuancering hier op zijn plaats, aangezien recidive tijdens forensische behandeling uitzonderlijk is. Zo werd in een recent onderzoek met gegevens van het Adviescollege Verloftoetsing tbs (AVT) gevonden dat slechts bij 0,15% van de 15.050 positief beoordeelde verlofaanvragen sprake was van een ongeoorloofde afwezigheid met recidive. Verder blijkt al jaren uit onderzoek van het Wetenschappelijk Onderzoek- en Datacentrum (WODC) dat ernstige recidive na ontslag uit de forensische zorg, met name de tbs, relatief laag is, in ieder geval aanzienlijk lager dan na een gevangenisstraf. Hierbij dient aangetekend te worden dat de cijfers lastig te vergelijken zijn vanwege belangrijke verschillen tussen de groepen. De recidivecijfers tijdens en na forensische zorg zijn dus relatief gunstig, maar een delict kan enorme impact hebben en het zo veel mogelijk voorkomen van recidive blijft het ultieme doel van de behandeling in de forensische zorg. Het is nog onduidelijk wat precies bijdraagt aan recidivereductie en hoe behandeleffectiviteit of behandelsucces gedefinieerd kan worden.
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In de afgelopen jaren zijn diverse cyberveiligheid informatiedeling-initiatieven opgericht. Dergelijke samenwerkingsverbanden zijn van groot belang om cyberdreigingen het hoofd te kunnen bieden. Maar welke factoren zorgen ervoor dat die initiatieven succesvol zijn?
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Het Genomisch kookboek is een boekje waarin moleculair biologische processen worden geïllustreerd met behulp van metaforen rondom koken.
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Dit artikel gaat in op het ontwikkelen van een beoordelingsprocedure voor het afstudeeronderzoek bij de hbo-opleiding Huidtherapie. Het team van deze opleiding heeft een beoordelingsprocedure en rubrics ontwikkeld die zowel voor summatieve als voor formatieve toetsing gebruikt kunnen worden. Alle docenten van het team die betrokken zijn bij de beoordeling van het afstudeerrapport, stemmen twee keer per jaar met elkaar af, door hetzelfde afstudeerrapport te beoordelen en te bespreken. Juist het bespreken lijkt goed te werken en te leiden tot meer overeenstemming tussen beoordelaars.
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In deze bijdrage wil ik ingaan op de relatie tussen de hogeschool en haar “eigen“ stad Den Haag. De hogeschool noemt zich De Haagse en wie binnenkomt in de hal ziet meteen dat hiermee niet bedoeld wordt het Haagse in de sjieke en welgestelde betekenis (Hagenaar) en ook niet in de meer volkse en minder welgestelde zin (Hagenees). Het nieuwe Den Haag is een bonte verzameling van culturen en kleuren en we hebben de term diversiteit nodig om aan te geven dat de tijd van alleen Hagenaar en Hagenees voorbij is. In dit essay wil ik eerst ingaan op de nieuwe vragen en ontwikkelingen die vanuit de stad en de samenleving op de hogeschool afkomen, daarna zal ik ingaan op de betekenis hiervan voor de kennis en kennisontwikkeling. Deze twee redeneringen hebben consequenties voor de hogeschool zelf en de kansen om in onderwijs en onderzoek bij te dragen aan de ontwikkeling van de stad en de samenleving.
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