33 research outputs found

    Inventarisatie en selectie van analysemethoden voor meststoffen

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    In dit rapport wordt een overzicht gegeven van parameters die in meststoffen dienen te worden bepaald en de beschikbare en beschreven analysemethoden. Op basis van een aantal selectiecriteria heeft RIKILT aan LNV een voorstel gedaan voor analysemethoden voor monsters die zijn genomen in het kader van controle en handhaving van de regelgeving voor het verhandelen van meststoffen. Dit alles in het kader van een verandering in regelgeving. Per 1 januari 2008 is het Meststoffenbesluit overgeheveld naar het Uitvoeringsbesluit Meststoffenwet en daarmee ok de overheveling van Beschikking analysemethoden meststoffe

    Effects and side effects of biological treatment for severe psoriasis in daily practice.

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    Contains fulltext : 82616.pdf (publisher's version ) (Open Access)Radboud Universiteit Nijmegen, 25 oktober 2010Promotor : Kerkhof, P.C.M. van de Co-promotor : Jong, E.M.G.J. de223 p

    Use of beta-blockers for rosacea-associated facial erythema and flushing: A systematic review and update on proposed mode of action

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    Contains fulltext : 225364.pdf (Publisher’s version ) (Open Access)BACKGROUND: Flushing and erythema are frequent skin symptoms in rosacea. Because their adequate treatment remains a clinical challenge, new treatment options are explored, such as oral β-blockers. OBJECTIVES: To evaluate the efficacy of oral β-blockers for rosacea-associated facial flushing and erythema. METHODS: PubMed, Embase, Web of Science, and Cochrane Library were systematically searched, including studies providing original data on the efficacy of oral β-blockers in rosacea patients with facial flushing and/or persistent erythema. Risk of bias was assessed using the Cochrane Risk of Bias tool, Newcastle-Ottawa scale, and Quality in Prognosis Studies tool. RESULTS: Nine studies evaluating the use of carvedilol, propranolol, nadolol, and β-blockers in general were included. Articles studying carvedilol and propranolol showed a large reduction of erythema and flushing during treatment with a rapid onset of symptom control. Bradycardia and hypotension were the most commonly described adverse events. LIMITATIONS: Most studies had a retrospective design with a small sample size, and outcome measurement was often subjective. CONCLUSIONS: Oral β-blockers could be an effective treatment option for patients with rosacea with facial erythema and flushing that does not respond to conventional therapy. Larger prospective trials with objective outcome assessment are needed to validate the promising results of these studies

    Rosacea and Use of Continuous Positive Airway Pressure Mask for Obstructive Sleep Apnea Syndrome: Report of Five Cases

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    Contains fulltext : 218990.pdf (publisher's version ) (Open Access

    Evaluation of a simple image-based tool to quantify facial erythema in rosacea during treatment

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    Contains fulltext : 227430.pdf (Publisher’s version ) (Open Access

    Vulvar cancer in hidradenitis suppurativa

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    BACKGROUND: Hidradenitis suppurativa (HS) is a debilitating disorder characterized by chronic inflammation in intertriginous areas. Malignant transformation to squamous cell carcinoma (SCC) is rare and is mostly diagnosed in the perianal area in men. The clinical behavior of SCC in HS can be aggressive, with local invasion and distant metastases.Case descriptions.We describe two cases of vulvar SCC in HS. The first demonstrates a 75 year old woman with a severe undertreated HS for over 30 years, who presented with a widespread vulvar cancer with lymphangitis carcinomatosa and inguinal and pelvic lymphadenopathy within several weeks after first suspicion of a malignancy. She died shortly after diagnosis. The second case describes a 61 year old woman diagnosed with HS 7 years ago, who presented with a rapidly progressive vulvar cancer with suspicion for ingrowth in the anal sphincter, vagina and levator ani muscle with inguinal and pelvic lymphadenopathy. She received radical chemoradiation with a complete response on imaging, but had a local recurrence within 2 months after finishing treatment. A posterior exenteration was performed but 5 months after surgery she had a second recurrence in the vulvar scar and pelvic floor muscles with possible bone metastases. She received palliative chemotherapy. CONCLUSION: Vulvar SCC in an area of HS is a rare condition which is difficult to diagnose. It can have an aggressive course with rapid progression and a high frequency of metastases at presentation. Early surgical excision of HS to diagnose occult malignant transformation, appropriate imaging to establish the extent of the disease and an aggressive treatment plan without any delays are recommended

    Cardiovascular risk factors in high-need psoriasis patients and its implications for biological therapies.

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    Item does not contain fulltextBACKGROUND: The associations between psoriasis and cardiovascular risk factors are reported to be stronger as psoriasis severity increases. This makes studying cardiovascular risk factors in high-need psoriasis patients, eligible for biological therapy, interesting. OBJECTIVE: To survey the prevalence of cardiovascular risk factors in high-need psoriasis patients and to compare these data to patients with other dermatological diseases. Furthermore, the implications of these findings for treatment with biologics were outlined. METHODS: The prevalence of cardiovascular risk factors was investigated in a high-need psoriatic patient cohort and compared to patients with other skin diseases who filled out a questionnaire about the presence of cardiovascular risk factors. RESULTS: A significantly higher prevalence of obesity, smoking, and hypertension was found for the high-need psoriatic patients' cohort compared with non-psoriatic controls. Striking differences were found with respect to body mass index and obesity, as 35.5% of all high-need psoriatic patients were obese. CONCLUSIONS: High-need psoriatic patients show a high prevalence of cardiovascular risk factors, and may consequently be predisposed to cardiovascular diseases. As this is relevant for therapy management in daily clinical practice, especially biologics, cardiovascular risk should be evaluated for each high-need psoriasis patient before and during systemic treatment

    Psoriasis treatment with etanercept and efalizumab: clinical strategies influencing treatment outcome.

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    BACKGROUND: Multiple trials have been conducted in which the safety and efficacy of different biological therapies for psoriasis have been studied. However, the treatment course in clinical practice is different from the setting in which trials are conducted. OBJECTIVES: The evaluation of the efficacy, safety and adverse events of etanercept and efalizumab treatment in daily practice and the investigation of interfering clinical strategies that could be of influence on treatment outcome. METHODS: A prospective cohort consisting of 101 patients with high-need psoriasis was followed for 2 years and analysed. Patients were treated with etanercept or efalizumab between February 2005 and May 2007. Efficacy, safety and adverse events were investigated. Furthermore, all accompanying factors of which an influence on treatment efficacy outcome was suspected were registered, including treatment interruptions, dosage adjustments and combinations of therapies. RESULTS: Etanercept and efalizumab treatment was effective and safe in most patients. However, in many cases the treatment course was characterized by unsatisfactory efficacy (83%), necessitating combination therapies or dosage adjustments. Treatment interruptions occurred in 56% (etanercept 2x50 mg group), 84% (etanercept 2x25 mg group) and 10% (efalizumab-treated patients). CONCLUSIONS: Treatment of high-need psoriasis patients in daily practice is highly different from treatment courses in clinical trials. Frequently applied clinical strategies such as treatment interruptions, dosage adjustments and combinations of treatments influence treatment outcome in routine treatment in comparison with randomized controlled trials. Information about treatment with these new drugs in daily clinical practice is important for adjusting treatment schedules and guidelines
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