35 resultados para Premature
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OBJECTIVES To evaluate possible differences in periodontal inflammatory, microbiological and clinical parameters between women with preterm premature rupture of membranes (PPROM) and controls with uncomplicated pregnancies. MATERIALS AND METHODS Fifty-six women (32 test (PPROM) and 24 controls (uncomplicated pregnancies)) were examined at three time-points (T1: gestational weeks 20-35, T2: within 48 h after parturition, T3: 4-6 weeks after parturition). The examinations included assessment of the Periodontal Screening Index, collection of gingival crevicular fluid (GCF) and subgingival as well as vaginal bacterial sampling. RESULTS Periodontal inflammation was found to be higher in the test compared with the control group (p < 0.05) and decreased over time in both groups (p < 0.05). Microbiological outcomes showed no intergroup differences (p > 0.05) in prevalence of bacteria, but a decrease in subgingival periodontopathogens from T1 to T2 in the test group (p < 0.05) was observed. Interleukin (IL)-1β levels in GCF at T2 were not different between groups (p > 0.05). In women with PPROM, GCF levels of IL-8 (p < 0.05) and C-reactive protein (p < 0.05) were lower and IL-10 levels higher (p < 0.05) compared with controls. CONCLUSIONS Periodontal inflammation is elevated during pregnancy and seems to be more pronounced in women with PPROM. CLINICAL RELEVANCE The findings of the present study revealed an association between periodontal inflammation and PPROM, thus emphasizing the importance of optimizing self-performed oral hygiene in pregnant women.
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Natural-cycle IVF has been suggested as an alternative IVF treatment. However, efficacy is limited due to high premature ovulation rates, resulting in low transfer rates. This study investigates whether low dosages of clomiphene citrate reduce premature ovulation rate and increase transfer rate. Of 112 women included (aged 35.2 ± 4.5 years) 108 underwent one natural-cycle IVF cycle with human chorionic gonadotrophin (HCG) to induce ovulation and 103 underwent one natural-cycle IVF cycle with 25 mg/day clomiphene from about day 7 until HCG administration. Before retrieval, 1.2 monitoring consultations per cycle were required. Clomiphene reduced premature ovulation rate, from 27.8% without to 6.8% with clomiphene (P < 0.001) and increased transfer rate from 39.8% to 54.4% (P = 0.039). Clinical pregnancy rates without and with clomiphene were 27.9% versus 25.0% per transfer and 11.1% versus 13.6% per initiated cycle. Use of clomiphene resulted in mild hot flushes and headache in 5% of patients. Nausea and persisting ovarian cyst formation was not observed. In conclusion, clomiphene citrate led to very few side effects, required 1.2 monitoring consultations, significantly reduced premature ovulation rate and significantly increased transfer rate per initiated cycle, an effect which was not age dependent.
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Gebiet: Chirurgie Abstract: Objectives This study reports a series of pitfalls, premature failures and explantations of the third generation Freedom SOLO bovine pericardial stentless valve. – – Methods 149 patients underwent aortic valve replacement (AVR) using the FS. Follow-up was 100% complete with an average observation time of 5.5±2.3 years (max. 8.7 years) and a total of 825 patient years. Following intraoperative documentation, all explanted valve prostheses underwent histological examination. – – Results Freedom from structural valve deterioration (SVD) at 5, 6, 7, 8 and 9 years was 92%, 88%, 80% and 70% and 62%, respectively. 14 prostheses required explantation due to valve-independent dysfunction (n=5, i.e. thrombus formation, oversizing, aortic dilatation, endocarditis and suture dehiscence) or valve-dependent failure (acute leaflet tears, n=4, severe stenosis, n=5). Thus freedom from explantation at 5, 6, 7, 8 and 9 years was 95%, 94%, 91% and 81% and 72%, respectively. An acute vertical tear along the non-coronary/right-coronary commissure to the base occurred at a mean of 6.0 years [range 4.3?7.3 years] and affected size 25 and 27 prostheses exclusively. Four FS required explantation after a mean of 7.5 years [range 7.0?8.3 years] due to severe functional stenosis and gross calcification that included the entire aortic root. – – Conclusions The Freedom SOLO stentless valve is safe to implant and shows satisfying mid-term results in our single institution experience. Freedom from SVD and explantation decreased markedly after only 6 ? 7 years, so that patients with FS require close observation and follow-up. Exact sizing, symmetric positioning and observing patient limitations are crucial for optimal outcome.
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OBJECTIVES Randomized clinical trials that enroll patients in critical or emergency care (acute care) setting are challenging because of narrow time windows for recruitment and the inability of many patients to provide informed consent. To assess the extent that recruitment challenges lead to randomized clinical trial discontinuation, we compared the discontinuation of acute care and nonacute care randomized clinical trials. DESIGN Retrospective cohort of 894 randomized clinical trials approved by six institutional review boards in Switzerland, Germany, and Canada between 2000 and 2003. SETTING Randomized clinical trials involving patients in an acute or nonacute care setting. SUBJECTS AND INTERVENTIONS We recorded trial characteristics, self-reported trial discontinuation, and self-reported reasons for discontinuation from protocols, corresponding publications, institutional review board files, and a survey of investigators. MEASUREMENTS AND MAIN RESULTS Of 894 randomized clinical trials, 64 (7%) were acute care randomized clinical trials (29 critical care and 35 emergency care). Compared with the 830 nonacute care randomized clinical trials, acute care randomized clinical trials were more frequently discontinued (28 of 64, 44% vs 221 of 830, 27%; p = 0.004). Slow recruitment was the most frequent reason for discontinuation, both in acute care (13 of 64, 20%) and in nonacute care randomized clinical trials (7 of 64, 11%). Logistic regression analyses suggested the acute care setting as an independent risk factor for randomized clinical trial discontinuation specifically as a result of slow recruitment (odds ratio, 4.00; 95% CI, 1.72-9.31) after adjusting for other established risk factors, including nonindustry sponsorship and small sample size. CONCLUSIONS Acute care randomized clinical trials are more vulnerable to premature discontinuation than nonacute care randomized clinical trials and have an approximately four-fold higher risk of discontinuation due to slow recruitment. These results highlight the need for strategies to reliably prevent and resolve slow patient recruitment in randomized clinical trials conducted in the critical and emergency care setting.
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A Review of Premature Termination in Psychotherapy: Strategies for Engaging Clients and Improving Outcomes by Joshua K. Swift and Roger P. Greenberg Washington, DC: American Psychological Association. 2015. 212 pp, ISBN 978-1-4338-1801- 1. $69.95 http://dx.doi.org/10.1037/a0038612 Premature Termination in Psychotherapy: Strategies for Engaging Clients and Improving Outcomes is one of the very best examples of the new generation of psychotherapy development. Based on rigorous research findings and a deep look into the preexisting literature, this book presents practical guidelines to understand premature termination and provides evidence-based strategies for how to engage patients in treatment. It will especially be a highlight for practitioners who are interested in a broad insight of the overall empirical literature. For graduate students in clinical and counseling psychology, this book might be an excellent prototype for how to bring rigorous quantitative research and convenient practice examples together.