1,310 research outputs found

    Dose bridging data for mometasone furoate in once-daily fixed-dose inhaled combinations of mometasone furoate/indacaterol and mometasone furoate/ indacaterol/glycopyrronium in patients with asthma

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    Once-daily (o.d.) fixed-dose combinations of mometasone furoate/indacaterol acetate and mometasone furoate/indacaterol acetate/glycopyrronium bromide, both delivered via the BreezhalerÂź device, are approved for the maintenance treatment of asthma. Across these fixed-dose combinations, while the doses of bronchodilators remain the same, the nominal doses of mometasone furoate in micrograms differ. This article presents the steps followed in bridging the mometasone furoate doses at the corresponding dose strengths in the mometasone furoate formulation delivered via the TwisthalerÂź and mometasone furoate/indacaterol acetate and mometasone furoate/indacaterol acetate/glycopyrronium bromide formulations delivered via the BreezhalerÂź. These were: (i) bridging the mometasone furoate doses in the TwisthalerÂź (previously approved) to mometasone furoate doses in the BreezhalerÂź; (ii) bridging the mometasone furoate doses in the BreezhalerÂź to mometasone furoate/indacaterol acetate and mometasone furoate/indacaterol acetate/glycopyrronium bromide formulation. Following this stepwise approach, it was determined that mometasone furoate 80 ÎŒg o.d. (medium dose strength) and 160 ÎŒg o.d. (high dose strength) in mometasone furoate/indacaterol acetate/glycopyrronium bromide formulation provided comparable inhaled corticosteroid efficacy to mometasone furoate 160 ÎŒg o.d. (medium dose strength) and 320 ÎŒg o.d. (high dose strength) in the mometasone furoate/indacaterol acetate formulation, respectively. These doses were used in the PLATINUM Phase III clinical program that investigated the efficacy and safety of mometasone furoate/indacaterol acetate and mometasone furoate/indacaterol acetate/glycopyrronium bromide combinations in patients with asthma

    Beleuchtung als Einflussfaktor fĂŒr eine tiergerechte Mastputenhaltung

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    Im Rahmen des Forschungsprojekts „Optimierung des Lichtmanagements in der Haltung von Mastputen“ (OptiLiMa) wird der Einfluss der Stallbeleuchtung auf das Verhalten von Mastputen untersucht. DafĂŒr wird eine LED-Vollspektrumbeleuchtung mit WellenlĂ€ngen vom UVA-Bereich bis zum sichtbaren Licht sowie ein automatisches Tierbeobachtungssystem mittels KI-videobasierter Objekterkennung entwickelt. Im Fokus der Untersuchungen steht dabei ein bislang wenig untersuchter möglicher Haltungsfaktor, der Einfluss der Beleuchtung auf das Verhalten von Mastputen. Getestet wurde einerseits die Auswirkung von Flimmerfrequenzen mit 165 Hz, 500 Hz und 16 kHz sowie andererseits unterschiedliche Lichtspektren im fĂŒr Menschen sichtbaren Bereich mit und ohne einen zusĂ€tzlichen UVA-Anteil. Die von den Puten bevorzugten Aufenthaltsbereiche im Maststall wurden analysiert. ZusĂ€tzlich wurde in Federproben die Konzentration von Corticosteron gemessen, um die Effekte der verschiedenen Flimmerfrequenzen auf die Langzeitsekretion dieses Stresshormons als Reaktion auf die Umgebungsbedingungen zu erfassen. Ziel der Studie ist es, Parameter fĂŒr eine den HaltungsansprĂŒchen von Mastputen gerecht werdende Stall-beleuchtung zu bestimmen, die ggf. zur Verbesserung des Tierwohls beitragen kann

    Design of the PROCON trial: a prospective, randomized multi – center study comparing cervical anterior discectomy without fusion, with fusion or with arthroplasty

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    BACKGROUND: PROCON was designed to assess the clinical outcome, development of adjacent disc disease and costs of cervical anterior discectomy without fusion, with fusion using a stand alone cage and implantation of a Bryan's disc prosthesis. Description of rationale and design of PROCON trial and discussion of its strengths and limitations. METHODS/DESIGN: Since proof justifying the use of implants or arthroplasty after cervical anterior discectomy is lacking, PROCON was designed. PROCON is a multicenter, randomized controlled trial comparing cervical anterior discectomy without fusion, with fusion with a stand alone cage or with implantation of a disc. The study population will be enrolled from patients with a single level cervical disc disease without myelopathic signs. Each treatment arm will need 90 patients. The patients will be followed for a minimum of five years, with visits scheduled at 6 weeks, 3 months, 12 months, and then yearly. At one year postoperatively, clinical outcome and self reported outcomes will be evaluated. At five years, the development of adjacent disc disease will be investigated. DISCUSSION: The results of this study will contribute to the discussion whether additional fusion or arthroplasty is needed and cost effective. TRIAL REGISTRATION: Current Controlled Trials ISRCTN4168184

    Automatic Coarse Graining of Polymers

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    Several recently proposed semi--automatic and fully--automatic coarse--graining schemes for polymer simulations are discussed. All these techniques derive effective potentials for multi--atom units or super--atoms from atomistic simulations. These include techniques relying on single chain simulations in vacuum and self--consistent optimizations from the melt like the simplex method and the inverted Boltzmann method. The focus is on matching the polymer structure on different scales. Several ways to obtain a time-scale for dynamic mapping are discussed additionally. Finally, similarities to other simulation areas where automatic optimization are applied as well are pointed out.Comment: 17 pages, 5 figure

    Interventionally implanted port catheter systems for hepatic arterial infusion of chemotherapy in patients with colorectal liver metastases: A phase II-study and historical comparison with the surgical approach

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    <p>Abstract</p> <p>Background</p> <p>The high complication rates of surgically implanted port catheter systems (SIPCS) represents a major drawback in the treatment of isolated liver neoplasms by hepatic arterial infusion (HAI) of chemotherapy. Interventionally implanted port catheter systems (IIPCS) have evolved into a promising alternative that enable initiation of HAI without laparatomy, but prospective data on this approach are still sparse. Aim of this study was to evaluate the most important technical endpoints associated with the use of IIPCS for the delivery of 5-fluorouracil-based HAI in patients with colorectal liver metastases in a phase 2-study, and to perform a non-randomised comparison with a historical group of patients in which HAI was administered via SIPCS.</p> <p>Methods</p> <p>41 patients with isolated liver metastases of colorectal cancer were enrolled into a phase II-study and provided with IIPCS between 2001 and 2004 (group A). The primary objective of the trial was defined as evaluation of device-related complications and port duration. Results were compared with those observed in a pre-defined historical collective of 40 patients treated with HAI via SIPCS at our institution between 1996 and 2000 (group B).</p> <p>Results</p> <p>Baseline characteristics were balanced between both groups, except for higher proportions of previous palliative pre-treatment and elevated serum alkaline phosphatase in patients of group A. Implantation of port catheters was successful in all patients of group A, whereas two primary failures were observed in group B. The frequency of device-related complications was similar between both groups, but the secondary failure rate was significantly higher with the use of surgical approach (17% vs. 50%, p < 0.01). Mean port duration was significantly longer in the interventional group (19 vs. 14 months, p = 0.01), with 77 vs. 50% of devices functioning at 12 months (p < 0.01). No unexpected complications were observed in both groups.</p> <p>Conclusion</p> <p>HAI via interventionally implanted port catheters can be safely provided to a collective of patients with colorectal liver metastases, including a relevant proportion of preatreated individuals. It appears to offer technical advantages over the surgical approach.</p

    Numerical approach to a model for quasistatic damage with spatial BV-regularization

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    We address a model for rate-independent, partial, isotropic damage in quasistatic small strain linear elasticity, featuring a damage variable with spatial BV-regularization. Discrete solutions are obtained using an alternate time-discrete scheme and the Variable-ADMM algorithm to solve the constrained nonsmooth optimization problem that determines the damage variable at each time step. We prove convergence of the method and show that discrete solutions approximate a semistable energetic solution of the rate-independent system. Moreover, we present our numerical results for two benchmark problems

    Methodik

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    Die vegetationskundliche und strukturelle Zuordnung der Lebensraumtypen erfolgt nach der vorrangig von Braun-Blanquet entwickelten Vegetationsklassifizierung, einer hierarchischen Gliederung der Vegetationstypen (Syntaxonomie), die die Ebenen der Assoziation, des Verbandes, der Ordnung und der Klasse umfasst. Hierbei ist die Assoziation die grundlegende Einheit, in der die Pflanzengesellschaften zusammengefasst werden, die sich durch gleiche charakteristische Arten(gruppen)kombinationen auszeichnen. Der Verband vereinigt Àhnliche Assoziationen. Das sind bereits umfassendere, jedoch standörtlich noch recht einheitliche Vegetationseinheiten. In Ordnungen werden Àhnliche VerbÀnde zusammengefasst. Die Klasse vereinigt Àhnliche Ordnungen

    Effectiveness of interspinous implant surgery in patients with intermittent neurogenic claudication: a systematic review and meta-analysis

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    Item does not contain fulltextINTRODUCTION: Despite an increasing implantation rate of interspinous process distraction (IPD) devices in the treatment of intermittent neurogenic claudication (INC), definitive evidence on the clinical effectiveness of implants is lacking. The main objective of this review was to perform a meta-analysis of all systematic reviews, randomized clinical trials and prospective cohort series to quantify the effectiveness of IPDs and to evaluate the potential side-effects. METHODS: Data from all studies prospectively describing clinical results based on validated outcome scales and reporting complications of treatment of patients with INC with IPD placement. We searched MEDLINE, EMBASE, Web of Science, Cochrane (CENTRAL), CINAHL, Academic Search Premier, Science Direct up to July 2010. Studies describing patients with INC caused by lumbar stenosis, reporting complication rate and reporting based on validated outcome scores, were eligible. Studies with only instrumented IPD results were excluded. RESULTS: Eleven studies eligible studies were identified. Two independently RCTs and eight prospective cohorts were available. In total 563 patients were treated with IPDs. All studies showed improvement in validated outcome scores after 6 weeks and 1 year. Pooled data based on the Zurich Claudication Questionnaire of the RCTs were more in favor of IPD treatment compared with conservative treatment (pooled estimate 23.2, SD 18.5-27.8). Statistical heterogeneity after pooled data was low (I-squared 0.0, p = 0.930). Overall complication rate was 7%. CONCLUSION: As the evidence is relatively low and the costs are high, more thorough (cost-) effectiveness studies should be performed before worldwide implementation is introduced

    The Felix-trial. Double-blind randomization of interspinous implant or bony decompression for treatment of spinal stenosis related intermittent neurogenic claudication

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    Abstract. Background. Decompressive laminotomy is the standard surgical procedure in the treatment of patients with canal stenosis related intermittent neurogenic claudication. New techniques, such as interspinous process implants, claim a shorter hospital stay, less post-operative pain and equal long-term functional outcome. A comparative (cost-) effectiveness study has not been performed yet. This protocol describes the design of a randomized controlled trial (RCT) on (cost-) effectiveness of the use of interspinous process implants versus conventi
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