61 research outputs found

    The long-term costs and effects of tubal flushing with oil-based versus water-based contrast during hysterosalpingography

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    Acknowledgements The authors would like to thank all the participating women, the hospitals and their staff, the research nurses and the staff of the Nationwide Consortium for Women's Health Research (NVOG Consortium; www.zorgevaluatienederland.nl ) for logistical support. Thanks also go to the H2Oil study group collaborators: Nan van Geloven, Jos W. R. Twisk, Peter M. van de Ven and Peter G. A. Hompes for their contributions to this study. The original H2Oil RCT was an investigator-initiated study that was funded by the two academic institutions (AMC and VUmc) of the Amsterdam UMC. The long-term follow-up study and economic analysis, both investigator-initiated studies, were funded by a research grant from Guerbet, France. The funders had no role in study design or collection, analysis or interpretation of the data. Declaration of interest: C.T.P. has received consultancy fees for external work from Guerbet, France. K.D. reports receiving travel and speakers fee from Guerbet. H.R.V. reports receiving consultancy fees from Ferring. M.G. works at the Department of Reproductive Medicine of the Amsterdam UMC (location AMC and location VUmc). Location VUmc has received several research and educational grants from Guerbet, Merck and Ferring. C.B.L. reports speakers fee from Ferring in the past, and his department receives research grants from Ferring, Merck and Guerbet. V.M. reports receiving travel and speakers fees as well as research grants from Guerbet. B.W.J.M. is supported by a NHMRC Investigator grant (GNT1176437). B.W.J.M. has received research grants from Merck and Guerbet. The other authors report no financial or commercial conflicts of interest.Peer reviewedPublisher PD

    Tubal flushing with oil-based or water-based contrast at hysterosalpingography for infertility:long-term reproductive outcomes of a randomized trial

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    Objective: To determine the impact of oil -based versus water -based contrast on pregnancy and live birth rates <5 years after hysterosalpingography (HSG) in infertile women. Design: A 5 -year follow-up study of a multicenter randomized trial. Setting: Hospitals. Patient(s): Infertile women with an ovulatory cycle, 18 - 39 years of age, and having a low risk of tubal pathology. Intervention(s): Use of oil -based versus water -based contrast during HSG. Main Outcome Measure(s): Ongoing pregnancy, live births, time to ongoing pregnancy, second ongoing pregnancy. Result(s): A total of 1,119 women were randomly assigned to HSG with oil -based contrast (n = 557) or water -based contrast (n = 562). After 5 years, 444 of 555 women in the oil group (80.0%) and 419 of 559 women in the water group (75.0%) had an ongoing pregnancy (relative risk [RR] 1.07; 95% con fi dence interval [CI] 1.00 - 1.14), and 415 of 555 women in the oil group (74.8%) and 376 of 559 women in the water group (67.3%) had live births (RR 1.11; 95% CI 1.03 - 1.20). In the oil group, 228 pregnancies (41.1%) were conceived naturally versus 194 (34.7%) pregnancies in the water group (RR 1.18; 95% CI 1.02 - 1.38). The time to ongoing pregnancy was signi fi cantly shorter in the oil group versus the water group (10.0 vs. 13.7 months; hazard ratio, 1.25; 95% CI 1.09 - 1.43). No difference was found in the occurrence of a second ongoing pregnancy. Conclusion(s): During a 5 -year time frame, ongoing pregnancy and live birth rates are higher after tubal fl ushing with oil -based contrast during HSG compared with water -based contrast. More pregnancies are naturally conceived and time to ongoing pregnancy is shorter after HSG with oil -based contrast. Clinical Trial Registration Number: Netherlands Trial Register (NTR) 3270 and NTR6577(www.trialregister.nl). (Fertil Steril (R) 2020;114:155-62. (C) 2020 by American Society for Reproductive Medicine.

    The OPTIMIST study: optimisation of cost effectiveness through individualised FSH stimulation dosages for IVF treatment. A randomised controlled trial

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    Contains fulltext : 109739.pdf (publisher's version ) (Open Access)ABSTRACT: BACKGROUND: Costs of in vitro fertilisation (IVF) are high, which is partly due to the use of follicle stimulating hormone (FSH). FSH is usually administered in a standard dose. However, due to differences in ovarian reserve between women, ovarian response also differs with potential negative consequences on pregnancy rates. A Markov decision-analytic model showed that FSH dose individualisation according to ovarian reserve is likely to be cost-effective in women who are eligible for IVF. However, this has never been confirmed in a large randomised controlled trial (RCT). The aim of the present study is to assess whether an individualised FSH dose regime based on an ovarian reserve test (ORT) is more cost-effective than a standard dose regime. METHODS/DESIGN: Multicentre RCT in subfertile women indicated for a first IVF or intracytoplasmic sperm injection cycle, who are aged < 44 years, have a regular menstrual cycle and no major abnormalities at transvaginal sonography. Women with polycystic ovary syndrome, endocrine or metabolic abnormalities and women undergoing IVF with oocyte donation, will not be included. Ovarian reserve will be assessed by measuring the antral follicle count. Women with a predicted poor response or hyperresponse will be randomised for a standard versus an individualised FSH regime (150 IU/day, 225-450 IU/day and 100 IU/day, respectively). Participants will undergo a maximum of three stimulation cycles during maximally 18 months. The primary study outcome is the cumulative ongoing pregnancy rate resulting in live birth achieved within 18 months after randomisation. Secondary outcomes are parameters for ovarian response, multiple pregnancies, number of cycles needed per live birth, total IU of FSH per stimulation cycle, and costs. All data will be analysed according to the intention-to-treat principle. Cost-effectiveness analysis will be performed to assess whether the health and associated economic benefits of individualised treatment of subfertile women outweigh the additional costs of an ORT. DISCUSSION: The results of this study will be integrated into a decision model that compares cost-effectiveness of the three dose-adjustment strategies to a standard dose strategy. The study outcomes will provide scientific foundation for national and international guidelines. TRIAL REGISTRATION: NTR2657

    To change or not to change? A study regarding the satisfaction of care workers and adolescents with the Motivational Interviewing based residential youth care training program Up2U

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    Long-term behavioral change in adolescents staying in residential youth care is often difficult to achieve. To enhance intrinsic motivation for change in adolescents, thereby achieving long-term behavioral change, we developed the Up2U training program. Based on motivational interviewing (MI) and solution-focused therapy (SFT), Up2U is designed for conducting one-on-one conversations with adolescents in residential youth care. The aim of this study is to evaluate the experiences that adolescents and care workers have had with this new program. To evaluate these experiences, we conducted semi-structured interviews with care workers and adolescents. We analyzed the interviews (N=23) with the program ATLAS.ti, using the 'open coding' method to code the interviews. The results show that, in general, the care workers were satisfied with Up2U. They identified the clarity, conciseness and sample questions as particularly positive elements of the Up2U manual. Moreover, the majority indicated the intent to continue using Up2U in the future. In contrast, the care workers regarded the extensiveness of the program as less positive. The adolescents also seemed to be positive about the use of Up2U during one-to-one conversations, particularly concerning the questions asked by the care workers. With regard to the implementation of Up2U, almost half of the care workers expressed dissatisfaction. In conclusion, although both care workers and adolescents were generally satisfied with Up2U, there is still room for improvement, especially with regard to the implementation of the training program. We therefore recommend devoting greater attention to implementation

    Resistin Is More Abundant in Liver Than Adipose Tissue and Is Not Up-Regulated by Lipopolysaccharide

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    Context: Resistin is an adipokine correlated with inflammatory markers and is predictive for cardiovascular diseases. There is evidence that serum resistin levels are elevated in obese patients; however, the role of resistin in insulin resistance and type 2 diabetes remains controversial. Objective: We addressed the question of whether inflammation may induce expression of resistin in organs involved in regulation of total body energy metabolism, such as liver and adipose tissue (AT). Methods: Human liver tissue, sc AT, and omentum were cultured in the absence/presence of lipopolysaccharide (LPS). The resistin and cytokine mRNA and protein expression levels were determined by real-time PCR, ELISA, and Multiplex Technology, respectively. The localization of resistin in human liver was analyzed by immunohistochemistry. Results: Resistin gene and protein expression was significantly higher in liver than in AT. Exposure of human AT and liver tissue in culture to LPS did not alter resistin concentration; however, concentrations of IL-1 beta, IL-6, and TNF alpha were significantly increased in these tissues. In liver, resistin colocalizes with markers for Kupffer cells, for a subset of endothelial and fibroblast-like cells. Conclusions: High level of resistin gene and protein expression in liver compared to AT implies that resistin should not be considered only as an adipokine in humans. LPS-induced inflammation does not affect resistin protein synthesis in human liver and AT. This suggests that elevated serum resistin levels are not indicative for inflammation of AT or liver in a manner similar to known inflammatory markers such as IL-1 beta, IL-6, or TNF alpha. (J Clin Endocrinol Metab 94: 3051-3057, 2009

    To change or not to change? An evaluation study of the Motivational Interviewing based residential youth care training program Up2U

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    Long-term behavioral change in adolescents staying in residential youth care is often difficult to achieve. To enhance intrinsic motivation for change in adolescents, thereby achieving long-term behavioral change, we developed the Up2U training program. Based on motivational interviewing (MI) and solution-focused therapy (SFT), Up2U is designed for conducting one-on-one conversations with adolescents in residential youth care. The aim of this study is to evaluate the experiences that adolescents and care workers have had with this new program. To evaluate these experiences, we conducted semi-structured interviews with care workers and adolescents. We analyzed the interviews (N=23) with the program ATLAS.ti, using the 'open coding' method to code the interviews. The results show that, in general, the care workers were satisfied with Up2U. They identified the clarity, conciseness and sample questions as particularly positive elements of the Up2U manual. Moreover, the majority indicated the intent to continue using Up2U in the future. In contrast, the care workers regarded the extensiveness of the program as less positive. The adolescents also seemed to be positive about the use of Up2U during one-to-one conversations, particularly concerning the questions asked by the care workers. With regard to the implementation of Up2U, almost half of the care workers expressed dissatisfaction. In conclusion, although both care workers and adolescents were generally satisfied with Up2U, there is still room for improvement, especially with regard to the implementation of the training program. We therefore recommend devoting greater attention to implementation

    Fractional factorial design for optimization of the SELDI protocol for human adipose tissue culture media

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    The early factors inducing insulin resistance are not known. Therefore, we are interested in studying the secretome of the human visceral adipose tissue as a potential source of unknown peptides and proteins inducing insulin resistance. Surface-enhanced laser desorption/ionization time-of-flight (SELDI-TOF) mass spectrometry is a high-throughput proteomics technology to generate peptide and protein profiles (MS spectra). To obtain good quality and reproducible data from SELDI-TOF, many factors in the sample pretreatment and SELDI protocol should be optimized. To identify the optimal combination of factors resulting in the best and the most reproducible spectra, we designed an experiment where factors were varied systematically according to a fractional factorial design. In this study, seven protein chip preparation protocol factors were tested in 32 experiments. The main effects of these factors and their interactions contributing to the best quality spectra were identified by ANOVA. To assess the reproducibility, in a subsequent experiment the eight protocols generating the highest quality spectra were applied to samples in quadruplicates on different chips. This approach resulted in the development of an improved chip protocol, yielding higher quality peaks and more reproducible spectra
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