180 results on '"B. Valentin"'
Search Results
2. Evaluation of secondary metabolites from mangrove associated fungi Meyerozyma guilliermondii
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Elsa Lycias Joel and B. Valentin Bhimba
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Medicine - Abstract
Background: Mangrove associated fungi are the second most diverse organisms that remain less explored. Cytotoxic and antibacterial activities of foliar fungus Meyerozyma guilliermondii were investigated. Methods: Foliar fungus was isolated from the leaves of Rhizophora mucronata collected from Pichavaram mangrove forest, Tamilnadu. Extracts from liquid state culture were tested for cytotoxicity against two cancer cell lines using the MTT assay. Antibacterial activity was determined using the well diffusion method. The DNA was isolated from the fungi, and the ITS region of 5.8s RNA was sequenced. The spectral properties (GC/MS) of the purified compounds were determined. Results: The ethyl acetate extracts showed potent cytotoxicity against Hep2 and human breast adenocarcinoma (MCF-7) cell lines with IC50 values of 1.25 and 0.625 μg/ml, respectively. Antibacterial activity of the fungal extract was demonstrated against five test organisms. The fungus was found to be a new strain based on ITS sequence and database in NCBI Blast tool. Conclusion: Results indicate the potential for production of bioactive agents from mangrove foliar fungi. KEYWORDS: Marine fungi, Meyerozyma guilliermondii, Anticancer, Antibacterial
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- 2013
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3. Landscape and challenges in economic evaluations of artificial intelligence in healthcare: a systematic review of methodology
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Nanna Kastrup, Annette W. Holst-Kristensen, and Jan B. Valentin
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Artificial intelligence ,Health economic evaluation ,Cost-effectiveness ,Cost-utility analysis ,Cost-effectiveness analysis ,Ssystematic review ,Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
Abstract Background The potential for artificial intelligence (AI) to transform healthcare cannot be ignored, and the development of AI technologies has increased significantly over the past decade. Furthermore, healthcare systems are under tremendous pressure, and efficient allocation of scarce healthcare resources is vital to ensure value for money. Health economic evaluations (HEEs) can be used to obtain information about cost-effectiveness. The literature acknowledges that the conduct of such evaluations differs between medical technologies (MedTechs) and pharmaceuticals, and poor quality evaluations can provide misleading results. This systematic review seeks to map the evidence on the general methodological quality of HEEs for AI technologies to identify potential areas which can be subject to quality improvements. We used the 35-item checklist by Drummond and Jefferson and four additional checklist domains proposed by Terricone et al. to assess the methodological quality of full HEEs of interventions that include AI. Results We identified 29 studies for analysis. The included studies had higher completion scores for items related to study design than for items related to data collection and analysis and interpretation of results. However, none of the studies addressed MedTech-specific items. Conclusions There was a concerningly low number of full HEEs relative to the number of AI publications, however the trend is that the number of studies per year is increasing. Mapping the evidence of the methodological quality of HEEs of AI shows a need to improve the quality in particular the use of proxy measures as outcome, reporting, and interpretation of the ICER.
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- 2024
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4. Patients with acute intracerebral hemorrhage and severe symptoms are highly sensitive to prehospital delay. A subgroup analysis from the RESIST and TRIAGE-STROKE trials
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Anne Behrndtz, Claus Z. Simonsen, Jan B. Valentin, Grethe Andersen, and Rolf A. Blauenfeldt
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stroke ,prehospital ,intracerebral hemorrhage ,delay ,triage ,Medicine - Abstract
BackgroundPatients with a positive prehospital stroke severity score and underlying intracerebral hemorrhage (ICH) may be harmed by longer onset-to-admission time. We aimed to investigate the interaction between ICH severity and time from onset to admission on functional outcome.MethodsThis is an individual patient data analysis with data from two randomized prehospital stroke trials using the same prehospital stroke scale. Patients were stratified according to the presence of a positive stroke severity score. They were grouped into early arrivers (admitted ≤ 90 min from onset) and late arrivers (admitted ≥90 min after onset). The primary outcome was a shift toward a better functional outcome on the modified Rankin Scale (mRS).ResultsA total of 212 patients had ICH. A positive stroke severity score was seen in 123 of these patients. Patients with ICH and a positive prehospital stroke severity score had a significantly worse outcome if they arrived 90 min or later at the hospital (adjusted odds ratio [aOR]: 2.02, 95% CI [1.01, 4.12]). This difference was not observed in patients without a positive severity score (aOR: 0.50, 95% CI [0.22, 1.14]). Patients with a positive score also had an increased risk of death or severe dependency (mRS of 5–6) of 9.1 percentage points (95% CI [−1.6%, 19.8%]) per hour if they were diagnosed with ICH.ConclusionLonger onset-to-admission time was harmful for patients with ICH and a positive prehospital stroke severity score.
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- 2024
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5. Three-dimensional quasi-quantized Hall insulator phase in SrSi2
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Manna, Kaustuv, Kumar, Nitesh, Chattopadhyay, Sumanta, Noky, Jonathan, Yao, Mengyu, Park, Joonbum, Förster, Tobias, Uhlarz, Marc, Chakraborty, Tirthankar, Schwarze, B. Valentin, Hornung, Jacob, Strocov, Vladimir N., Borrmann, Horst, Shekhar, Chandra, Sun, Yan, Wosnitza, Jochen, Felser, Claudia, and Gooth, Johannes
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Condensed Matter - Materials Science - Abstract
In insulators, the longitudinal resistivity becomes infinitely large at zero temperature. For classic insulators, the Hall conductivity becomes zero at the same time. However, there are special systems, such as two-dimensional quantum Hall isolators, in which a more complex scenario is observed at high magnetic fields. Here, we report experimental evidence for a quasi-quantized Hall insulator in the quantum limit of the three-dimensional semimetal SrSi2. Our measurements reveal a magnetic field-range, in which the longitudinal resistivity diverges with decreasing temperature, while the Hall conductivity approaches a quasi-quantized value that is given only by the conductance quantum and the Fermi wave vector in the field-direction. The quasi-quantized Hall insulator appears in a magnetic-field induced insulating ground state of three-dimensional materials and is deeply rooted in quantum Hall physics., Comment: 29 pages including SI, 3 main figures and 6 SI figures
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- 2021
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6. Observation of giant spin-split Fermi-arc with maximal Chern number in the chiral topological semimetal PtGa
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Yao, Mengyu, Manna, Kaustuv, Yang, Qun, Fedorov, Alexander, Voroshnin, Vladimir, Schwarze, B. Valentin, Hornung, Jacob, Chattopadhyay, S., Sun, Zhe, Guin, Satya N, Wosnitza, Jochen, Borrmann, Horst, Shekhar, Chandra, Kumar, Nitesh, Fink, Jörg, Sun, Yan, and Felser, Claudia
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Condensed Matter - Materials Science ,Condensed Matter - Strongly Correlated Electrons - Abstract
Non-symmorphic chiral topological crystals host exotic multifold fermions, and their associated Fermi arcs helically wrap around and expand throughout the Brillouin zone between the high-symmetry center and surface-corner momenta. However, Fermi-arc splitting and realization of the theoretically proposed maximal Chern number rely heavily on the spin-orbit coupling (SOC) strength. In the present work, we investigate the topological states of a new chiral crystal, PtGa, which has the strongest SOC among all chiral crystals reported to date. With a comprehensive investigation using high-resolution angle-resolved photoemission spectroscopy, quantum-oscillation measurements, and state-of-the-art ab initio calculations, we report a giant SOC-induced splitting of both Fermi arcs and bulk states. Consequently, this study experimentally confirms the realization of a maximal Chern number equal to |4| for the first time in multifold fermionic systems, thereby providing a platform to observe large-quantized photogalvanic currents in optical experiments., Comment: Accepted in Nature Communications
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- 2020
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7. In-pixel AI for lossy data compression at source for X-ray detectors
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B. Valentin, Manuel, Di Guglielmo, Giuseppe, Noonan, Danny, Dilip, Priyanka, Huang, Panpan, Quinn, Adam, Zimmerman, Thomas, Braga, Davide, Ogrenci, Seda, Jacobsen, Chris, Tran, Nhan, and Fahim, Farah
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- 2023
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8. Standard Versus Individualized Blood Pressure Targets During Thrombectomy: A Randomized Controlled Pilot Trial
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Ulrick S. Espelund, Jan B. Valentin, Christian F. Eriksen, Klaus U. Koch, Søren P. Johnsen, Rolf A. Blauenfeldt, Lasse Speiser, Claus Z. Simonsen, and Mads Rasmussen
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anesthesia ,blood pressure ,ischemic stroke ,thrombectomy ,Neurology. Diseases of the nervous system ,RC346-429 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background The optimal blood pressure management strategy in patients undergoing endovascular therapy for acute ischemic stroke is unknown. This pilot study aimed to assess the feasibility of a standard versus individualized blood pressure management strategy during endovascular therapy. Methods This randomized controlled pilot trial included adult patients with acute ischemic stroke with large‐vessel occlusion in the anterior circulation undergoing endovascular therapy. Patients were randomized to either standard (mean arterial blood pressure [MABP] targeted between 70 and 90 mm Hg) or individualized (MABP targeted ±10% of a baseline value measured in the neurointerventional suite) blood pressure targets until reperfusion or removal of groin sheath. The main outcome was the modified Rankin Scale score at 90 days. Secondary outcomes included feasibility outcomes, 90‐day dichotomized modified Rankin Scale score (0–2 versus 3–6), and reperfusion rates. Results Between April 2021 and February 2022, 60 patients (median [interquartile range] age, 76 [66–84] years) were randomly assigned to standard (n=30) or individualized (n=30) blood pressure targets. Median (interquartile range) National institutes of Health Stroke Scale score was 15 (10–18). Mean (SD) MABP, mean (SD) systolic blood pressure, and median (interquartile range) cardiac output were significantly higher in the individualized group compared with the standard group (MABP: 94 [9] versus 88 [9] mm Hg; P=0.012; systolic blood pressure: 149 [21] versus 139 [17] mm Hg; P=0.032; and cardiac output: 5.82 [4.22–7.23] versus 4.35 [3.73–5.1] L/min; P=0.02). The odds ratio for improved outcome in the individualized group was 1.37 (95% CI, 0.56–3.36). The relative risk for improved dichotomized outcome in the individualized group was 1.31 (95% CI, 0.87–1.98). Full reperfusion rates were comparable between the standard and individualized groups (90% versus 93%; P=0.64). The median percentage of time outside the MABP targets was 54.3% in the standard group versus 61.4% in the individual group (P=0.30) and did not meet the feasibility target. Recruitment rate, data completeness, and safety were within feasibility limits. Conclusions The feasibility criteria were not met in this study because of difficulties in achieving the desired blood pressure targets. These findings do not support continuing with a large trial using the current protocol.
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- 2023
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9. An AI-based patient-specific clinical decision support system for OA patients choosing surgery or not: study protocol for a single-centre, parallel-group, non-inferiority randomised controlled trial
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Nanna Kastrup, Helene H. Bjerregaard, Mogens Laursen, Jan B. Valentin, Søren P. Johnsen, and Cathrine E. Jensen
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Artificial intelligence ,Machine learning ,Randomised controlled trial ,Cost-effectiveness ,Clinical decision support system ,Total hip replacement ,Medicine (General) ,R5-920 - Abstract
Abstract Background Osteoarthritis (OA) affects 20% of the adult Danish population, and the financial burden to society amounts to DKK 4.6 billion annually. Research suggests that up to 75% of surgical patients could have postponed an operation and managed with physical training. ERVIN.2 is an artificial intelligence (AI)-based clinical support system that addresses this problem by enhancing patient involvement in decisions concerning surgical knee and hip replacement. However, the clinical outcomes and cost-effectiveness of using such a system are scantily documented. Objective The primary objective is to investigate whether the usual care is non-inferior to ERVIN.2 supported care. The second objective is to determine if ERVIN.2 enhances clinical decision support and whether ERVIN.2 supported care is cost-effective. Methods This study used a single-centre, non-inferiority, randomised controlled in a two-arm parallel-group design. The study will be reported in compliance with CONSORT guidelines. The control group receives the usual care. As an add-on, the intervention group have access to baseline scores and predicted Oxford hip/knee scores and HRQoL for both the surgical and the non-surgical trajectory. A cost-utility analysis will be conducted alongside the trial using a hospital perspective, a 1-year time horizon and effects estimated using EQ-5D-3L. Results will be presented as cost per QALY gain. Discussion This study will bring knowledge about whether ERVIN.2 enhances clinical decision support, clinical effects, and cost-effectiveness of the AI system. The study design will not allow for the blinding of surgeons. Trial registration ClinicalTrials.gov NCT04332055 . Registered on 2 April 2020.
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- 2023
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10. Diagnostic performance of Glial Fibrillary Acidic Protein and Prehospital Stroke Scale for identification of stroke and stroke subtypes in an unselected patient cohort with symptom onset
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Henriette S. Jæger, Ditte Tranberg, Karianne Larsen, Jan B. Valentin, Rolf A. Blauenfeldt, Sebastian Luger, Kristi G. Bache, and Martin F. Gude
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Stroke ,Diagnosis ,GFAP ,PreSS ,Prehospital ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Abstract
Abstract Introduction Rapid identification and treatment of stroke is crucial for the outcome of the patient. We aimed to determine the performance of glial fibrillary acidic protein (GFAP) independently and in combination with the Prehospital Stroke Score (PreSS) for identification and differentiation of acute stroke within 4.5 h after symptom onset. Patients and methods Clinical data and serum samples were collected from the Treat-Norwegian Acute Stroke Prehospital Project (Treat-NASPP). Patients with suspected stroke and symptoms lasting ≤ 4.5 h had blood samples collected and were evaluated with the National Institutes of Health Stroke Scale prospectively. In this sub study, NIHSS was retrospectively translated into PreSS and GFAP was measured using the sensitive single molecule array (SIMOA). Results A total of 299 patients with suspected stroke were recruited from Treat-NASPP and included in this study (44% acute ischemic stroke (AIS), 10% intracranial hemorrhage (ICrH), 7% transient ischemic attack (TIA), and 38% stroke mimics). ICrH was identified with a cross-fold validated area under the receiver-operating characteristic curve (AUC) of 0.73 (95% CI 0.62–0.84). A decision tree with PreSS and GFAP combined, first identified patients with a low probability of stroke. Subsequently, GFAP detected patients with ICrH with a 25.0% sensitivity (95% CI 11.5–43.4) and 100.0% specificity (95% CI 98.6–100.0). Lastly, patients with large-vessel occlusion (LVO) were detected with a 55.6% sensitivity (95% CI 35.3–74.5) and 82.4% specificity (95% CI 77.3–86.7). Conclusion In unselected patients with suspected stroke, GFAP alone identified ICrH. Combined in a decision tree, GFAP and PreSS identified subgroups with high proportions of stroke mimics, ICrH, LVO, and AIS (non-LVO strokes).
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- 2023
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11. The effect of music to improve sleep quality in depression related insomnia
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H. N. Lund, I. N. Pedersen, A. Heymann-Szlachcinska, M. Tuszewska, G. Bizik, J. I. Larsen, A. Drago, E. Kulhay, A. Larsen, H. Ø. Sørensen, B. Grønbech, L. R. Bertelsen, J. B. Valentin, J. Mainz, S. P. Johnsen, N. Hannibal, and R. MacDonald
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Psychiatry ,RC435-571 - Abstract
Introduction Insomnia in depression is common and difficult to resolve. Music is commonly used as a sleep aid, and clinical trials pointing to positive effects of music as a sleep aid are increasing adding to the evidence base. There is little knowledge on the effectiveness of music for depression related insomnia. Objectives A recent RCT study conducted in psychiatry at Aalborg University Hospital examined effects of a music intervention for insomnia in depression. The intervention group listened to music at bedtime for four weeks, controls were offered music intervention post-test. Primary outcome measure was Pittsburgh Sleep Quality Index (PSQI). Secondary outcomes included Actigraphy, The Hamilton depression Rating Scale (HAMD-17) and World Health Organisation well-being questionnaires (WHO-5, WHOQOL-BREF). Methods A two-armed randomized controlled trial (n=112) and a qualitative interview study (n=4) Results The RCT study showed signficant improvements for the music intervention group in sleep quality and quality of life at four weeks according to global PSQI scores (effect size= -2.1, 95%CI -3.3; -0.9) and WHO-5 scores (effect size 8.4, 95%CI 2.7; 14.0). Actigraphy measures showed no changes and changes in depression symptoms (HAMD-17) were not detected. The interview study unfolded examples of the influences of music on sleep and relaxation. Music distracted, affected mood and arousal positively and supported formation of sleep habits. Results from the trial are discussed and merged with findings from the interview study. The results from the trial suggested moderate effects of music listening for the population while findings from the interview study showed examples of individual and highly varying outcomes. Conclusions Music is suggested as a low-cost, side-effect free and safe intervention in supplement to existing treatments improving sleep in depression. Disclosure of Interest None Declared
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- 2023
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12. Endovascular Therapy of Tandem Occlusions: Baseline Characteristics and Outcomes Compared With Intracranial Occlusion
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Mads M. Sørensen, Thabele M. Leslie‐Mazwi, Jonas Jensen, Jan B. Valentin, and Claus Z. Simonsen
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acute ischemic stroke ,endovascular thrombectomy ,tandem occlusion ,Neurology. Diseases of the nervous system ,RC346-429 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background Endovascular therapy is highly effective in stroke caused by large vessel occlusion. Guidelines support treatment in case of occlusion of the intracranial internal carotid artery or the first segment of the middle cerebral artery. We aimed to examine baseline characteristics and outcome of patients who underwent endovascular therapy for tandem occlusions. Methods We conducted a retrospective study of patients who underwent endovascular therapy of tandem occlusion or occlusion of intracranial internal carotid artery/first segment of the middle cerebral artery between May 2015 and December 2019. Univariate comparisons of baseline characteristics and outcome (favorable functional outcome 90‐days after treatment and mortality) were performed. We used inverse‐probability‐of‐treatment‐weights to adjust for confounders. Results We compared 167 patients with tandem occlusion and 414 with intracranial occlusions. Patients with tandem occlusion were younger (69 years [interquartile range: 59.25–76] versus 74 [interquartile range: 64–81]; P = 0.0002), male (64.7% versus 51.4%; P = 0.004), more frequently active smokers (42.5% versus 25.6%; P = 0.0001), and less frequently subject to atrial fibrillation (18.6% versus 41.3%; P
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- 2023
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13. An outreach collaborative model for early identification and treatment of mental disorder in Danish workplaces
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Helle Østermark Sørensen, Jan B. Valentin, Malene Krogsgaard Bording, Jens Ivar Larsen, Anelia Larsen, and Øyvind Omland
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Early identification ,Outreach collaborative model ,Depression ,Anxiety ,Workplace ,Unmet treatment need ,Psychiatry ,RC435-571 - Abstract
Abstract Background Depression and anxiety are prevalent mental disorders among the working population with potentially high personal and financial cost. The overall aim of this study was to test the applicability of an outreach collaborative model for early identification and treatment of clinical and sub-clinical mental disorders among Danish employees. This applicability was examined by I) investigating the fractions of identified and treated clinical and subclinical cases, II) describing the distribution and characteristics of cases identified and III) investigating the effect of allocated treatment. Methods A longitudinal study design with four assessments (T0-T3) over 16 months was applied. Self-reporting questionnaires probing for psychopathology were distributed to all employees in six consecutively enrolled companies at the four time points. Employees meeting the screening criteria at T1 were assessed diagnostically. Subjects diagnosed with a clinical mental disorder were allocated to outpatient psychiatric treatment, and subjects with subclinical conditions were allocated to preventive cognitive behavioural therapy. Follow-up was conducted 6 and 12 months after initiation of treatment. We used chi-squared test and F-test to compare the different groups on baseline characteristics and mixed effects linear regression to analyse the treatment effects. Results Forty (6.8%) of the 586 responders at T1 were diagnosed with a clinical mental disorder and referred to outpatient psychiatric treatment. Thirty-three (5.6%) were affected by a subclinical condition and referred to preventive treatment. Nearly two-thirds (63%) of the employees diagnosed with a clinical condition had never received treatment before. Symptom severity decreased significantly for both treated groups until follow-up. When compared to a composed control group, subclinical cases displayed a more rapid initial significant symptomatic decrease on the global symptom scale (coefs = − 0.914, 95% CI [− 1.754, − 0,075]) and anxiety sub-scale (coefs = − 1.043, 95% CI [− 2.021, − 0.066]). This did not apply to the clinical cases as no significant difference in change were identified. Conclusions The outreach collaborative model demonstrated an applicability to identify both clinical and subclinical cases, among these a high number of employees with an unmet need for treatment. We found evidence of a positive initial effect on symptomatology from the allocated preventive treatment among the subclinical cases, but not for clinical cases. Trial registration Retrospectively registered at December 18, 2018 at clinicaltrials.gov, identifier: NCT03786328.
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- 2019
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14. Enregistrement informatique normalisé des actes de pharmacie clinique en établissement de santé : retour d’expérience et évaluation de la valorisation économique potentielle
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B. Valentin, C. Laueriere, C. Rousseliere, A. Bruandet, P. Odou, D. Theis, and B. Decaudin
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Pharmacology ,Pharmaceutical Science - Published
- 2023
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15. Percutaneous Radiofrequency Ablation for Trigeminal Neuralgia Management: A Randomized, Double-Blinded, Sham-Controlled Clinical Trial
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André Marques Mansano, Thiago Nouer Frederico, Raquel Elisa B Valentin, Maria Jose Carvalho Carmona, and Hazem Adel Ashmawi
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Anesthesiology and Pain Medicine ,Neurology (clinical) ,General Medicine - Abstract
Trigeminal neuralgia, considered by many the worst pain that humankind can experience, has been called “the suicide disease.” Neuroablative procedures are good options when conservative treatment fails to promote pain relief or in those whose side effects are unbearable. The objective was to compare the effectiveness and safety of trigeminal percutaneous radiofrequency ablation in classical refractory trigeminal neuralgia in a prospective, randomized, double-blind, sham-controlled clinical trial. We included 30 consecutive patients with classical trigeminal neuralgia who had failed to respond to drug treatment. The patients were randomly assigned into two groups: a thermal radiofrequency and a sham group. The thermal radiofrequency group were submitted to a 75°C lesion for 60 seconds after proper sensory and motor stimulation. All steps were carried out in the sham group except the thermal lesion. Patients were evaluated using the Numerical Rating Scale (NRS), the 36-Item Short-Form Health Survey questionnaire, and anticonvulsant dose. After 1 month, the mean NRS score decreased from 9.2 to 0.7 in the radiofrequency group and from 8.9 to 5.8 in the sham group. This significant reduction was measurable starting at day one after the procedure and remained significant throughout the first month. Changing groups was allowed after one month, after which the pain reduction was similar between the two groups. Percutaneous trigeminal radiofrequency ablation results in statistically and clinically significant greater pain relief than the sham procedure after 1 month of follow-up. These results support using radiofrequency nerve ablation as a treatment for refractory trigeminal neuralgia.
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- 2022
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16. Internet-based CBT for social phobia and panic disorder in a specialised anxiety clinic in routine care: Results of a pilot randomised controlled trial
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Kim Mathiasen, Heleen Riper, Lars Holger Ehlers, Jan B. Valentin, and Nicole K. Rosenberg
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Internet ,Computer ,Internet-based ,Cognitive behavioural therapy ,CBT ,iCBT ,cCBT ,RCT ,Randomised controlled trial ,Anxiety ,Social phobia ,Panic disorder ,Specialised care ,Secondary care ,Self-help ,Information technology ,T58.5-58.64 ,Psychology ,BF1-990 - Abstract
Ample studies have demonstrated that internet-based cognitive behavioural therapy (iCBT) for anxiety disorders is effective and acceptable in controlled settings. Studies assessing the clinical effectiveness of iCBT for anxiety disorders among routine care populations are, however, not as numerous. The purpose of this study was to assess the effectiveness of iCBT among anxiety patients, who were on a waiting list for intensive outpatient treatment, in a specialised routine care clinic.1 Clinic for OCD and Anxiety disorders, Aarhus University Hospital, DK. A randomised controlled pilot trial was conducted. Recruited patients were on a waiting list and had a primary diagnosis of either social phobia or panic disorder. Participants were randomised into either receiving iCBT with minimal therapist contact (received access to the programme FearFighter® (FF) and received support from a clinician via telephone) or no treatment (stayed on the waiting list). The primary outcome was self-reported symptomatic change of anxiety on Beck Anxiety Inventory (BAI). The secondary outcomes were comorbid depression measured on Beck Depression Inventory (BDI-II) and quality of life measured with the EuroQol one-item visual-analogue scale (EQ-vas). All results were analysed by intention-to-treat analyses using a mixed-effects approach. N = 158 patients were assessed for eligibility of which N = 67 met all eligibility inclusion criteria, signed informed consent forms, and were randomised. Post-treatment assessment was completed by N = 47 (70%). In the intervention group, N = 11 (31%) completed all modules of FF. No significant differences of change of symptomatic levels were found between the intervention and control group for anxiety (BAI: mean diff. = 2.42; 95% CI −1.03 to 5.86; p = 0.17; d = 0.06) or for depression (BDI-II: mean diff. 1.87; 95% CI −2.25 to 6.00; p = 0.37; d = 0.02). A large and significant effect was found in self-reported quality of life in favour of the experimental group (EQ-vas: mean diff. −20.88; 95% CI −30.64 to −11.11; p
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- 2016
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17. PROMM-AS Studie: MRT-gestützte aktive Überwachung ohne jährliche Re-Biopsie bei Patienten mit ISUP-1- oder ISUP-2-Prostatakarzinom
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B Valentin, C Arsov, T Ullrich, R Al-Monajjed, M Boschheidgen, M Giessing, C Lopez-Cotarelo, G Antoch, P Albers, J P Radtke, and L Schimmöller
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- 2023
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18. Acquired Brain Injury Among Adolescents and Young Adults:A Nationwide Study of Labor Market Attachment
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M. S. Worm, M. Kruse, J. B. Valentin, S. W. Svendsen, J. F. Nielsen, J. F. Thomsen, and S. P. Johnsen
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Employment ,Occupational Therapy ,Return to work ,Rehabilitation ,Education - Abstract
Purpose Young patients represent a particularly vulnerable group regarding vocational prognosis after an acquired brain injury (ABI). We aimed to investigate how sequelae and rehabilitation needs are associated with vocational prognosis up to 3 years after an ABI in 15–30-year-old patients. Methods An incidence cohort of 285 patients with ABI completed a questionnaire on sequelae and rehabilitation interventions and needs 3 months after the index hospital contact. They were followed-up for up to 3 years with respect to the primary outcome “stable return to education/work (sRTW)”, which was defined using a national register of public transfer payments. Data were analyzed using cumulative incidence curves and cause-specific hazard ratios. Results Young individuals reported a high frequency of mainly pain-related (52%) and cognitive sequelae (46%) at 3 months. Motor problems were less frequent (18%), but negatively associated with sRTW within 3 years (adjusted HR 0.57, 95% CI 0.39–0.84). Rehabilitation interventions were received by 28% while 21% reported unmet rehabilitation needs, and both factors were negatively associated with sRTW (adjusted HR 0.66, 95% CI 0.48–0.91 and adjusted HR 0.72, 95% CI 0.51–1.01). Conclusions Young patients frequently experienced sequelae and rehabilitation needs 3 months post ABI, which was negatively associated with long-term labor market attachment. The low rate of sRTW among patients with sequelae and unmet rehabilitation needs indicates an untapped potential for ameliorated vocational and rehabilitating initiatives targeted at young patients.
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- 2023
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19. High risk of cardiovascular disease in curatively treated patients with oesophageal cancer: a Danish cohort study
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M Soendergaard, M Nordsmark, K M Nielsen, J B Valentin, S P Johnsen, and S H Poulsen
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Cardiology and Cardiovascular Medicine - Abstract
Background The cardiovascular disease (CVD) burden among patients with oesophageal cancer (EC) treated with curative intent is unclear. Purpose To determine CVD incidence and all-cause mortality in patients with EC. Material and methods Danish national health registries were used to identify patients diagnosed with primary EC between 2008 and 2018. Each EC patient was matched with ten individuals from the general population. The primary endpoint was a CVD hospital contact (CVD-HC), either admission or outpatient contact. Secondary endpoints were all-cause mortality and five specific CVD endpoints evaluated separately: atrial fibrillation, ischemic heart disease, heart failure, perimyocarditis, and venous thromboembolism. Using registries, all endpoints were assessed up to ten years following the EC diagnosis. Results The study included 1,525 patients with EC matched to 15,250 individuals from the general population. Patients with EC had a post-diagnosis one-year adjusted hazard ratio (HR) of CVD-HCs of 6.1 (95% CI: 5.6 to 6.8) compared with the general population. During the next nine years, the risk of CVD-HC was comparable between the two cohorts with an adjusted HR of 1.0 (95% CI: 0.9 to 1.3) (Figure 1). Patients with EC, particularly those with prevalent CVD (29%) had a high risk of ischemic heart disease with a one-year HR of 6.2 (95% CI: 3.7 to 10.4). The risk of venous thromboembolism and atrial fibrillation was 14-fold and four-fold elevated within the first year after EC diagnosis compared to the general population. After EC diagnosis, all-cause mortality was, as expected, increased in patients with EC compared with the general population. However, prevalent CVD among patients with EC did not appear to be associated with higher all-cause mortality. Conclusion CVD morbidity was transiently increased in the first year following EC diagnosis compared with the general population. All-cause mortality risks were high but did not appear to be affected by prevalent CVD. The very high risk of CVD in curatively treated patients with EC calls for healthcare initiatives to advance preventive and post-treatment strategies. Funding Acknowledgement Type of funding sources: Foundation. Main funding source(s): The Danish Cancer SocietyCarpenter Jorgen Holm and Wife Elisa F. Hansen's Memorial Scholarship
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- 2022
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20. Verbesserung der Diagnostik myelomspezifischer Nierenveränderungen durch funktionelle MRT-Biomarker
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B Valentin, R Zukovs, L Prehm, T Thiel, J H Wittsack, A Boquoi, R Fenk, and A Ljimani
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- 2022
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21. Données préliminaires sur l'utilisation de la délafloxacine
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B. Cappeliez, B. Valentin, C. Loiez, N. Blondiaux, C. Couzigou, R. Lecompte, O. Robineau, and E. Senneville
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- 2023
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22. PHAISTOS: A framework for Markov chain Monte Carlo simulation and inference of protein structure.
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Wouter Boomsma, Jes Frellsen, Tim Harder, Sandro Bottaro, Kristoffer E. Johansson, Pengfei Tian, Kasper Stovgaard, Christian Andreetta, Simon Olsson, Jan B. Valentin, Lubomir D. Antonov, Anders S. Christensen, Mikael Borg, Jan H. Jensen, Kresten Lindorff-Larsen, Jesper Ferkinghoff-Borg, and Thomas Hamelryck
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- 2013
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23. Audit des pratiques sur les valves bidirectionnelles des montages de voies centrales en unité de soins critiques
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P. Brichart, S. Genay, B. Valentin, S. Neuville, G. Lebuffe, P. Odou, and B. Décaudin
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Pharmacology (medical) - Published
- 2022
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24. Que savent les patients atteints de goutte sur leur maladie, son traitement et le risque cardiovasculaire qui y est lié ?
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M. Cazin, C. Rousselière, B. Valentin, P. Odou, C. Cordonnier, R.M. Flipo, and B. Décaudin
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Pharmacology (medical) - Published
- 2022
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25. Silver nanoparticles: Antibacterial activity against wound isolates &invitro cytotoxic activity on Human Caucasian colon adenocarcinoma
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Devi, J. Saraniya and Bhimba, B. Valentin
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- 2012
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26. Anticancer and antimicrobial activity of mangrove derived fungi Hypocrea lixii VB1
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Bhimba, B. Valentin, Franco, D.A. Agnel Defora, Mathew, Jibi Merin, Jose, Geena Mary, Joel, Elsa Lycias, and Thangaraj, M.
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- 2012
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27. Serie de Redacción Científica: Estudios Trasversales
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Antonio M. Quispe, Juan D. Mares, Elvis B. Valentin, and Ana R. Gutierrez
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Los estudios transversales se caracterizan por la medición simultánea de la exposición y el outcome de interés. Son el diseño idóneo para estimar prevalencias, analizar la precisión diagnóstica de una prueba y validar instrumentos, para lo cual es esencial controlar los sesgos de información, selección y confusión ya sea por diseño o por análisis. Asimismo, es crucial escoger la medida de asociación idónea para cada outcome de interés, llámese el odds ratio para eventos raros y la razón de prevalencias para los eventos frecuentes. Finalmente, para su redacción y publicación se recomienda revisar las guías STROBE y STARD
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- 2020
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28. Evidence-Based Process Performance Measures and Clinical Outcomes in Patients With Incident Heart Failure With Reduced Ejection Fraction:A Danish Nationwide Cohort Study
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Inge Schjødt, Søren P. Johnsen, Anna Strömberg, Adam D. DeVore, Jan B. Valentin, and Brian B. Løgstrup
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process assessment ,Denmark ,Adrenergic beta-Antagonists ,General Practice ,heart failure ,Heart Failure/diagnosis ,Cohort Studies ,READMISSION ,patient readmission ,Angiotensin Receptor Antagonists ,Mineralocorticoid Receptor Antagonists/therapeutic use ,ADHERENCE ,REGISTERS ,Humans ,QUALITY ,Registries ,METAANALYSIS ,Mineralocorticoid Receptor Antagonists ,Heart Failure ,HOSPITAL DISCHARGE ,exercise ,MORTALITY ,registries ,Stroke Volume ,EDUCATION ,ADULTS ,ASSOCIATION ,Adrenergic beta-Antagonists/therapeutic use ,health care ,Angiotensin Receptor Antagonists/therapeutic use ,Denmark/epidemiology ,Allmänmedicin ,mortality ,Cardiology and Cardiovascular Medicine - Abstract
Background: Data on the association between quality of heart failure (HF) care and outcomes among patients with incident HF are sparse. We examined the association between process performance measures and clinical outcomes in patients with incident HF with reduced ejection fraction. Methods: Patients with incident HF with reduced ejection fraction (n=10 966) between January 2008 and October 2015 were identified from the Danish HF Registry. Data from public registries were linked. Multivariable regression analyses were used to assess the association between 6 guideline-recommended HF care processes (New York Heart Association assessment, use of angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers, beta-blockers, and mineralocorticoid receptor antagonists, exercise training, and patient education) and all-cause and HF readmission, all-cause and HF hospital days, and mortality within 3 to 12 months after HF diagnosis. The associations were analyzed according to the percentages of all relevant performance measures fulfilled for the individual patient (0%–50% [reference group], >50%–75%, and >75%–100%) and for the individual performance measures. Results: Fulfilling >75% to 100% of the performance measures (n=5341 [48.7%]) was associated with lower risk of all-cause readmission (adjusted hazard ratio, 0.78 [95% CI, 0.68–0.89]) and HF readmission (adjusted hazard ratio, 0.71 [95% CI, 0.54–0.92]), lower use of all-cause hospital days (adjusted mean ratio, 0.73 [95% CI, 0.70–0.76]) and HF hospital days (adjusted mean ratio, 0.79 [95% CI, 0.70–0.89]), and lower mortality (adjusted hazard ratio, 0.42 [95% CI, 0.32–0.53]). A dose-response relationship was observed between fulfilling more performance measures and mortality (adjusted hazard ratio, 0.62 [95% CI, 0.49–0.77] fulfilling >50%–75% of the measures). Fulfilling individual performance measures, except mineralocorticoid receptor antagonist therapy, was associated with lower adjusted all-cause readmission, lower adjusted use of all-cause and HF hospital days, and lower adjusted mortality. Conclusions: Fulfilling more process performance measures was associated with better clinical outcomes in patients with incident HF with reduced ejection fraction.
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- 2022
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29. MRI-guided Active Surveillance without annual re-biopsy in patients with ISUP 1 and 2 prostate cancer – The prospective PROMM-AS Study
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J.P. Radtke, B. Valentin, C. Arsov, T. Ullrich, R. Al-Monajjed, M. Boschheidgen, M. Giessing, C. Lopez-Cotarelo, G. Antoch, P. Albers, and L. Schimmöller
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Urology - Published
- 2023
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30. Characterization of cytotoxic compound from mangrove derived fungi Irpex hydnoides VB4
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Bhimba, B Valentin, Franco, DA Agnel Defora, Jose, Geena Mary, Mathew, Jibi Merin, and Joel, Elsa Lycias
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- 2011
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31. Pre-operative magnetic resonance imaging can predict prostate cancer with risk for positive surgical margins
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M. Quentin, L. Schimmöller, T. Ullrich, B. Valentin, D. Demetrescu, R. Al-Monajjed, D. Mally, I. Esposito, P. Albers, G. Antoch, and C. Arsov
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Male ,Prostatectomy ,Radiological and Ultrasound Technology ,Urology ,Gastroenterology ,Humans ,Margins of Excision ,Prostatic Neoplasms ,Radiology, Nuclear Medicine and imaging ,Magnetic Resonance Imaging ,Retrospective Studies - Abstract
Purpose Analysis of patients with pre-operative 3 T multiparametric prostate MRI (mpMRI) to determine reliable MRI-based risk predictors of patients at risk for positive surgical margins (PSM) in robotic assisted radical prostatectomy (RPE). Methods Consecutive patients with 3 T mpMRI and subsequent RPE from 01/2015 to 12/2018 were retrospectively included. Patients were compared regarding clinical and MRI related parameters such as length of capsular tumor contact (LCC) and distance to the membranous urethra (UD). Results Forty-nine of 179 patients (27%) had PSM in 70 different localizations, with the majority located at the capsule (57%, 40/70), mostly apical and/or posterior. The second most often PSM occurred at the apical urethra (22%, 15/70). PCA was visible on mpMRI at the localization of PSM in 93% at the capsule and in 80% at the urethra. PSA, PI-RADS classification, extraprostatic extension (EPE), and seminal vesicles infiltration (SVI) on MRI were significantly higher / more frequent in patients with PSM. LCC (AUC 0.710), EPE (AUC 0.693), and UD (1-AUC 0.673) predicted PSM (overall). An UD of ≤ 3.5 mm showed the highest accuracy of 95% (J = 0.946) for PSM at the urethra and a LCC of ≥ 22.5 mm with 77% (J = 0.378) for PSM at the capsule. Conclusion PSM occurred mostly in the apex and/or posteriorly at the capsule or at the apical urethra. LCC was the best MRI predictor for PSM at the capsule and UD for tumors with PSM at the apical urethra. Using these MRI parameters readers might pre-operatively determine PCA localizations at risk for PSM.
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- 2021
32. Déploiement d’un système d’aide à la décision pharmaceutique en soutien à l’activité d’analyse des prescriptions médicamenteuses dans une unité de chirurgie programmée
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N.D. Alloh, P. Brichart, B. Valentin, L. Robert, C. Rousselière, S. Genay, P. Odou, and B. Décaudin
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Pharmacology (medical) - Published
- 2022
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33. Étude de l’impact de la conciliation médicamenteuse proactive à l’admission dans le parcours de soins des patients suivis par un centre de référence des infections ostéoarticulaires complexes
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C. Boutahar, B. Valentin, H. Tribouilllard, S. Genay, E. Senneville, H. Migaud, P. Odou, and B. Décaudin
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Pharmacology (medical) - Published
- 2022
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34. Évaluation du bon usage des cathéters midline courts dans un service d’orthopédie-traumatologie
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N.D. Alloh, P. Brichart, T. Lambelin, B. Valentin, S. Neuville, B. Tavernier, S. Genay, P. Odou, and B. Décaudin
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Pharmacology (medical) - Published
- 2022
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35. Comparison of 3 T mpMRI and pelvic CT examinations for detection of lymph node metastases in patients with prostate cancer
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B. Valentin, C. Arsov, T. Ullrich, D. Demetrescu, J. Morawitz, R. Al-Monajjed, M. Quentin, J. Kirchner, I. Esposito, P. Albers, G. Antoch, and L. Schimmöller
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Male ,Prostatectomy ,Lymphatic Metastasis ,Humans ,Prostatic Neoplasms ,Radiology, Nuclear Medicine and imaging ,General Medicine ,Multiparametric Magnetic Resonance Imaging ,Tomography, X-Ray Computed ,Magnetic Resonance Imaging ,Retrospective Studies - Abstract
This study investigates preoperative lymph node metastases (LNM) detection accuracy by MRI and CT in patients with prostate cancer (PCA).All patients with preoperative MRI, CT or both and subsequent radical prostatectomy (RPE) and lymphadenectomy (LA) were included in this retrospective cohort study. Prostate specific antigen (PSA), PI-RADS, ISUP grade group, clinical and pathological tumor (T) stage was compared between negative and positive nodal (N) stage. LNM were assessed with size and localization and weather they were preoperatively detected or not. In patients with preoperative CT and MRI, the results were compared intermodally. The reference standard was the histopathological results after RPE and LA.A total of 228 patients were analysed including 24 patients with confirmed LNM (N1; 11%). PSA (median 9.7 vs. 14 ng/ml), PI-RADS (median 4 vs. 5), ISUP (median 2 vs. 4), and cT/pT-stage (median T2 vs. T3) was significantly higher in patients with LNM. No LNM were found in patients with ISUP-1-PCA. MRI was able to detect 67% of patients with LNM. Lymph node metastases presented on MRI predominantly small, round-shaped, located parailiacally with a minimum SAD of 4 mm (vs. CT SAD of 8 mm). In comparison, MRI was superior to CT in the detection of LNM (sensitivity 81% vs. 33%; specificity 99% vs. 97).LNM were very rare in patients with PSA 10 ng/ml, PI-RADS ≤ 4, and ≤ cT2. MRI could detect LNM up to 4 mm with a moderate sensitivity and high specificity. Thus, MRI might optimise the preoperative diagnostic and therapy planning of patients with PCA, whereas CT was clearly limited for N-stage assessment.
- Published
- 2021
36. Evaluation der CO-RADS Klassifikation in der CT bei Patienten mit V. a. COVID-19
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M Köhler, V Keitel, Alexandra Ljimani, M Andree, C Loberg, G Antoch, T Wienemann, J Aissa, Elisabeth Appel, C Rademacher, B Valentin, and Andrea Steuwe
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- 2021
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37. COVID-19 Detektion mittels CT bei symptomatischen Patienten mit initial negativem PCR-Ergebnis
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V Keitel, G Antoch, M Köhler, Andrea Steuwe, Elisabeth Appel, J Aissa, Alexandra Ljimani, T Wienemann, M Andree, C Rademacher, and B Valentin
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- 2021
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38. Verbesserte Vergleichbarkeit zwischen CT- und Röntgenbildern bei COVID-Patienten mittels virtueller Röntgenbilder
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A Elisabeth, G Antoch, Andrea Steuwe, M Köhler, J Aissa, B Valentin, and C Rademacher
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- 2021
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39. The contact separation of a finite beam from the tensionless Winkler foundation due to the force acting at the one beam end
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B Valentin Glavardanov, S Aleksandar Okuka, and B Ratko Maretić
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Physics ,020303 mechanical engineering & transports ,0203 mechanical engineering ,business.industry ,Separation (aeronautics) ,0211 other engineering and technologies ,Foundation (engineering) ,02 engineering and technology ,Structural engineering ,business ,Beam (structure) ,021101 geological & geomatics engineering - Published
- 2018
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40. Validation of models to diagnose ovarian cancer in patients managed surgically or conservatively: multicentre cohort study
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Van Calster, B. Valentin, L. Froyman, W. Landolfo, C. Ceusters, J. Testa, A.C. Wynants, L. Sladkevicius, P. Van Holsbeke, C. Domali, E. Fruscio, R. Epstein, E. Franchi, D. Kudla, M.J. Chiappa, V. Alcazar, J.L. Leone, F.P.G. Buonomo, F. Coccia, M.E. Guerriero, S. Deo, N. Jokubkiene, L. Savelli, L. Fischerová, D. Czekierdowski, A. Kaijser, J. Coosemans, A. Scambia, G. Vergote, I. Bourne, T. Timmerman, D.
- Abstract
OBJECTIVE: To evaluate the performance of diagnostic prediction models for ovarian malignancy in all patients with an ovarian mass managed surgically or conservatively. DESIGN: Multicentre cohort study. SETTING: 36 oncology referral centres (tertiary centres with a specific gynaecological oncology unit) or other types of centre. PARTICIPANTS: Consecutive adult patients presenting with an adnexal mass between January 2012 and March 2015 and managed by surgery or follow-up. MAIN OUTCOME MEASURES: Overall and centre specific discrimination, calibration, and clinical utility of six prediction models for ovarian malignancy (risk of malignancy index (RMI), logistic regression model 2 (LR2), simple rules, simple rules risk model (SRRisk), assessment of different neoplasias in the adnexa (ADNEX) with or without CA125). ADNEX allows the risk of malignancy to be subdivided into risks of a borderline, stage I primary, stage II-IV primary, or secondary metastatic malignancy. The outcome was based on histology if patients underwent surgery, or on results of clinical and ultrasound follow-up at 12 (±2) months. Multiple imputation was used when outcome based on follow-up was uncertain. RESULTS: The primary analysis included 17 centres that met strict quality criteria for surgical and follow-up data (5717 of all 8519 patients). 812 patients (14%) had a mass that was already in follow-up at study recruitment, therefore 4905 patients were included in the statistical analysis. The outcome was benign in 3441 (70%) patients and malignant in 978 (20%). Uncertain outcomes (486, 10%) were most often explained by limited follow-up information. The overall area under the receiver operating characteristic curve was highest for ADNEX with CA125 (0.94, 95% confidence interval 0.92 to 0.96), ADNEX without CA125 (0.94, 0.91 to 0.95) and SRRisk (0.94, 0.91 to 0.95), and lowest for RMI (0.89, 0.85 to 0.92). Calibration varied among centres for all models, however the ADNEX models and SRRisk were the best calibrated. Calibration of the estimated risks for the tumour subtypes was good for ADNEX irrespective of whether or not CA125 was included as a predictor. Overall clinical utility (net benefit) was highest for the ADNEX models and SRRisk, and lowest for RMI. For patients who received at least one follow-up scan (n=1958), overall area under the receiver operating characteristic curve ranged from 0.76 (95% confidence interval 0.66 to 0.84) for RMI to 0.89 (0.81 to 0.94) for ADNEX with CA125. CONCLUSIONS: Our study found the ADNEX models and SRRisk are the best models to distinguish between benign and malignant masses in all patients presenting with an adnexal mass, including those managed conservatively. TRIAL REGISTRATION: ClinicalTrials.gov NCT01698632. © Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY. No commercial re-use. See rights and permissions. Published by BMJ.
- Published
- 2020
41. Risk of complications in patients with conservatively managed ovarian tumours (IOTA5): a 2-year interim analysis of a multicentre, prospective, cohort study
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Froyman, W. Landolfo, C. De Cock, B. Wynants, L. Sladkevicius, P. Testa, A.C. Van Holsbeke, C. Domali, E. Fruscio, R. Epstein, E. dos Santos Bernardo, M.J. Franchi, D. Kudla, M.J. Chiappa, V. Alcazar, J.L. Leone, F.P.G. Buonomo, F. Hochberg, L. Coccia, M.E. Guerriero, S. Deo, N. Jokubkiene, L. Kaijser, J. Coosemans, A. Vergote, I. Verbakel, J.Y. Bourne, T. Van Calster, B. Valentin, L. Timmerman, D.
- Abstract
Background: Ovarian tumours are usually surgically removed because of the presumed risk of complications. Few large prospective studies on long-term follow-up of adnexal masses exist. We aimed to estimate the cumulative incidence of cyst complications and malignancy during the first 2 years of follow-up after adnexal masses have been classified as benign by use of ultrasonography. Methods: In the international, prospective, cohort International Ovarian Tumor Analysis Phase 5 (IOTA5) study, patients aged 18 years or older with at least one adnexal mass who had been selected for surgery or conservative management after ultrasound assessment were recruited consecutively from 36 cancer and non-cancer centres in 14 countries. Follow-up of patients managed conservatively is ongoing at present. In this 2-year interim analysis, we analysed patients who were selected for conservative management of an adnexal mass judged to be benign on ultrasound on the basis of subjective assessment of ultrasound images. Conservative management included ultrasound and clinical follow-up at intervals of 3 months and 6 months, and then every 12 months thereafter. The main outcomes of this 2-year interim analysis were cumulative incidence of spontaneous resolution of the mass, torsion or cyst rupture, or borderline or invasive malignancy confirmed surgically in patients with a newly diagnosed adnexal mass. IOTA5 is registered with ClinicalTrials.gov, number NCT01698632, and the central Ethics Committee and the Belgian Federal Agency for Medicines and Health Products, number S51375/B32220095331, and is ongoing. Findings: Between Jan 1, 2012, and March 1, 2015, 8519 patients were recruited to IOTA5. 3144 (37%) patients selected for conservative management were eligible for inclusion in our analysis, of whom 221 (7%) had no follow-up data and 336 (11%) were operated on before a planned follow-up scan was done. Of 2587 (82%) patients with follow-up data, 668 (26%) had a mass that was already in follow-up at recruitment, and 1919 (74%) presented with a new mass at recruitment (ie, not already in follow-up in the centre before recruitment). Median follow-up of patients with new masses was 27 months (IQR 14–38). The cumulative incidence of spontaneous resolution within 2 years of follow-up among those with a new mass at recruitment (n=1919) was 20·2% (95% CI 18·4–22·1), and of finding invasive malignancy at surgery was 0·4% (95% CI 0·1–0·6), 0·3% (
- Published
- 2019
42. Increased All-Cause Mortality in Patients With Schizophrenia Following Acute Coronary Syndrome
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Rubina, Attar, B, Valentin Jan, Phillip, Freeman, Kristian, Kragholm, Andell, Pontus, Aagaard, Jørgen, and Jensen, Svend Eggert
- Published
- 2018
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43. Potenzial und Wirksamkeit eines telemedizinischen Rettungsassistenzsystems
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Rolf Rossaint, B. Valentin, Sebastian Bergrath, F. Hirsch, Stefan K. Beckers, J.C. Brokmann, Sabina Jeschke, and Michael Czaplik
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Telemedicine ,medicine.medical_specialty ,Remote Consultation ,Medical treatment ,business.industry ,Advisory committee ,MEDLINE ,General Medicine ,Anesthesiology and Pain Medicine ,Health care ,Emergency medicine ,Medicine ,Observational study ,Rural area ,business - Abstract
BACKGROUND The demographic change and an increasing multimorbidity of patients represent increasing challenges for the adequate prehospital treatment of emergency patients. The incorporation of supplementary telemedical concepts and systems can lead to an improved guideline-conform treatment. Beneficial evidence of telemedical procedures is only known for isolated disease patterns; however, no mobile telemedical concept exists which is suitable for use in the wide variety of different clinical situations. AIM This article presents a newly developed and evaluated total telemedical concept (TemRas) that encompasses organizational, medical and technical components. The use of intelligent and robust communication technology and the implementation of this add-on system allows the telemedical support of the rescue service for all emergencies. METHODS After development of the telemedical rescue assistance system, which includes organizational, medical and technical components, a telemedical centre and six ambulances in five different districts in North-Rhine Westphalia were equipped with this new tool. During the evaluation phase of 1 year in the routine emergency medical service the rate of complications as well as differences between urban and rural areas were analyzed with respect to different target parameters. RESULTS Between August 2012 and July 2013 a total of 401 teleconsultations were performed during emergency missions and 24 during secondary interhospital transfers. No complications due to teleconsultation were observed. The mean duration (±SD) of teleconsultations was longer in rural areas than in urban areas with 28.6±12.0 min vs. 25.5±11.1 min (p
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- 2015
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44. [Neonatal arterial ischemic stroke: Which thrombotic biological risk factors to investigate and which practical consequences?]
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T, Perez, J B, Valentin, E, Saliba, and Y, Gruel
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Stroke ,Risk Factors ,Practice Guidelines as Topic ,Infant, Newborn ,Humans ,Thrombosis ,Infant, Newborn, Diseases ,Brain Ischemia - Abstract
All biological risk factors that have been previously identified to increase the risk of thrombosis in adults, have also been studied in neonates with arterial Ischemic Stroke (NAIS), but most studies were retrospective and included relatively low numbers of affected children. We therefore could not suggest recommendations with a strong level of evidence and only expert proposals potentially useful for clinical practice will be presented in this text. Despite these limitations, the extensive analysis of published data supported that factor V Leiden (FVL) and increased levels of Lp(a) could be significant risk factors for NAIS. Importantly, these 2 risk factors cannot be considered as having provoked NAIS, and moreover, they do not influence the prognosis and the immediate treatment. However, since the FVL may have an impact for the prescription of a thromboprophylaxis when the neonate will become adult, to look for its presence in affected patients may be justified. For clinical practice, the following propositions can be applied: 1. Routine testing for thrombophilia (AT, PC PS deficiency, FV Leiden or FII20210A) or for detecting other biological risk factors such as antiphospholipid antibodies, high FVIII, homocystein or Lp(a) levels, MTHFR thermolabile variant, should not be considered in neonates with NAIS. 2. Testing for FV Leiden can be performed in case of documented family history of venous thromboembolic disease. 3. Testing neonates for the presence of antiphospholipid antibodies (APA) is mandatory in case of clinical events suggesting antiphospholipid syndrome in the mother (vascular thrombosis, and/or pregnancy morbidity). 4. Routine testing for thrombophilia is not proposed in both parents in case of early death of the neonate, apart from APA in the mother.
- Published
- 2017
45. OHP-004 Evaluation of proper use and effectiveness of ceftaroline in our clinical practice
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B Valentin, Aurélien Mary, M Debailleul, N. Pelloquin, and M. Belhout
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medicine.medical_specialty ,business.industry ,medicine.drug_class ,Antibiotics ,Retrospective cohort study ,medicine.disease ,Clinical Practice ,Minimum inhibitory concentration ,Community-acquired pneumonia ,Infectious disease (medical specialty) ,Internal medicine ,Medicine ,Culture negative ,Medical prescription ,business ,Intensive care medicine - Abstract
Background Ceftaroline is a broad spectrum antibiotic used to treat complicated skin and soft tissues infections and community acquired pneumonia. To prevent emergence of resistant strains and conserve its effectiveness, ceftaroline prescription should be limited to specific recommended cases. Purpose The aim of this study was to evaluate proper use and effectiveness of ceftaroline in our establishment. Material and methods This was a retrospective study performed between January 2014 and December 2015. Patients who received ceftaroline and their biological and clinical data were collected by extraction from our prescription software (DXCARE and CLINISOFT). Seven items analysed the ‘correct use’ of ceftaroline: clinical setting, indication, referred germ, sensibility to other antibiotics, dosage, advice from an infectious disease and type of treatment (empiric, prophylactic or reassessed). Four items evaluated the ‘effectiveness’: treatment time, time for negative culture result, minimum inhibitory concentration (MIC) and healing of the infection. Results During the period, 13 patients received ceftaroline; 1 patient’s record was unusable. Prescriptions for ceftaroline were off-label in 83.3% (10/12, in the majority for osteo-articular infection), and 83.3% (10/12) of prescriptions were documented with identification of a methicillin resistant staphylococcal (once associated with Escherichia coli and another with Haemophilus parainfluenza ). Each time, germs were resistant to glycopeptides. Dosage was adapted to renal function for 83.3% of cases and the last 2 cases benefited from pharmaceutical intervention to obtain adequate posology. Advice from an infectiologist was given for each treatment initiation. Average and median treatment time were, respectively, 15.5 days and 10 days. Average time to culture negative result was 9.2 days, but was assessed for osteo-articular and not documented infections (7/12). Ceftaroline MIC was measured in 6 cases and was strictly below 1 mg/mL. All patients were cured of their infection, with a minimum step back 6 months. No adverse reactions were observed during the study. Conclusion This study showed important off-label use for ceftaroline but specialist advice was systematically requested due to the complexity of the patients. In all cases, patients were cured of their infection. Despite the off-label prescriptions, ceftaroline was used properly, with good therapeutic efficacy in our institution. A multicentre study should be performed to compare practices between several hospitals. No conflict of interest
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- 2017
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46. Accidents vasculaires cérébraux ischémiques artériels néonatals : synthèse des recommandations
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E. Saliba, T. Debillon, S. Auvin, O. Baud, V. Biran, J.-L. Chabernaud, S. Chabrier, F. Cneude, A.-G. Cordier, V. Darmency-Stamboul, J.-F. Diependaele, M. Dinomais, C. Durand, A. Ego, G. Favrais, Y. Gruel, L. Hertz-Pannier, B. Husson, S. Marret, S. N’Guyen The Tich, T. Perez, J.-B. Valentin, C. Vuillerot, Néonatalogie, CHU Grenoble, Techniques pour l'Evaluation et la Modélisation des Actions de la Santé (TIMC-IMAG-ThEMAS), Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525 (TIMC-IMAG), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Service de neuropédiatrie et maladies métaboliques [CHU Robert-Debré], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Robert Debré, CCLIN Sud-Est – Centre de Coordination de la Lutte contre les Infections Nosocomiales Sud-Est, Neurobiologie des processus adaptatifs (NPA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Service de pédiatrie (CHU de Dijon), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Laboratoire Angevin de Recherche en Ingénierie des Systèmes (LARIS), Université d'Angers (UA), Département d'hématologie - Hémostase, Unité de recherche en NeuroImagerie Applicative Clinique et Translationnelle (UNIACT), Service NEUROSPIN (NEUROSPIN), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Biostatistiques santé, Département biostatistiques et modélisation pour la santé et l'environnement [LBBE], Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Hôpital Robert Debré, Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Departement de médecine physique et de réadaptation pediatrique, CHU Saint-Etienne, Hôpital Antoine Béclère, Université Paris-Sud - Paris 11 (UP11)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Hôpital Jeanne de Flandre [Lille], Pathologies Respiratoires : Protéolyse et Aérosolthérapie, Université de Tours-Institut National de la Santé et de la Recherche Médicale (INSERM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Team 4 'NeoVasc' - INSERM U1245, Génomique et Médecine Personnalisée du Cancer et des Maladies Neuropsychiatriques (GPMCND), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Baud, Olivier, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris-Sud - Paris 11 (UP11), Techniques pour l'Evaluation et la Modélisation des Actions de la Santé (TIMC-ThEMAS), Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525 (TIMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-IMAG-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-IMAG-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut d’Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520 (IEMN), Ecole Centrale de Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-IMAG-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-IMAG-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Université Polytechnique Hauts-de-France (UPHF)-Ecole Centrale de Lille-Université Polytechnique Hauts-de-France (UPHF)-Institut supérieur de l'électronique et du numérique (ISEN), Université Paris-Sud - Paris 11 (UP11)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), and Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)
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Pediatrics ,medicine.medical_specialty ,Neonatal intensive care unit ,Heart disease ,medicine.medical_treatment ,[SDV]Life Sciences [q-bio] ,Thrombophilia ,03 medical and health sciences ,0302 clinical medicine ,Antiphospholipid syndrome ,Recurrence ,Risk Factors ,030225 pediatrics ,Neonatal ,Diagnosis ,medicine ,Humans ,Caesarean section ,Family history ,Stroke ,Intersectoral Collaboration ,ComputingMilieux_MISCELLANEOUS ,ddc:618 ,business.industry ,Infant ,medicine.disease ,Newborn ,3. Good health ,Neonatal infection ,Intensive Care Units ,Pediatrics, Perinatology and Child Health ,Differential ,Cerebral Infarction/diagnosis/etiology/therapy ,Interdisciplinary Communication ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,Guideline Adherence ,business ,030217 neurology & neurosurgery - Abstract
International audience; Neonatal arterial ischemic stroke (NAIS) is a rare event that occurs in approximately one in 5000 term or close-to-term infants. Most affected infants will present with seizures. Although a well-recognized clinical entity, many questions remain regarding diagnosis, risk factors, treatment, and follow-up modalities. In the absence of a known pathophysiological mechanism and lack of evidence-based guidelines, only supportive care is currently provided. To address these issues, a French national committee set up by the French Neonatal Society (Société française de néonatologie) and the national referral center (Centre national de référence) for arterial ischemic stroke in children drew up guidelines based on an HAS (Haute Autorité de santé [HAS]; French national authority for health) methodology. The main findings and recommendations established by the study group are: (1) among the risk factors, male sex, primiparity, caesarean section, perinatal hypoxia, and fetal/neonatal infection (mainly bacterial meningitis) seem to be the most frequent. As for guidelines, the study group recommends the following: (1) the transfer of neonates with suspected NAIS to a neonatal intensive care unit with available equipment to establish a reliable diagnosis with MRI imaging and neurophysiological monitoring, preferably by continuous video EEG; (2) acute treatment of suspected infection or other life-threatening processes should be addressed immediately by the primary medical team. Persistent seizures should be treated with a loading dose of phenobarbital 20mg/kg i.v.; (3) MRI of the brain is considered optimal for the diagnosis of NAIS. Diffusion-weighted imaging with apparent diffusion coefficient is considered the most sensitive measure for identifying infarct in the neonatal brain. The location and extent of the lesions are best assessed between 2 and 4 days after the onset of stroke; (4) routine testing for thrombophilia (AT, PC PS deficiency, FV Leiden or FII20210A) or for detecting other biological risk factors such as antiphospholipid antibodies, high FVIII, homocysteinemia, the Lp(a) test, the MTHFR thermolabile variant should not be considered in neonates with NAIS. Testing for FV Leiden can be performed only in case of a documented family history of venous thromboembolic disease. Testing neonates for the presence of antiphospholipid antibodies should be considered only in case of clinical events arguing in favor of antiphospholipid syndrome in the mother; (5) unlike childhood arterial ischemic stroke, NAIS has a low 5-year recurrence rate (approximately 1 %), except in those children with congenital heart disease or multiple genetic thrombophilia. Therefore, initiation of anticoagulation or antithrombotic agents, including heparin products, is not recommended in the newborn without identifiable risk factors; (6) the study group recommends that in case of delayed motor milestones or early handedness, multidisciplinary rehabilitation is recommended as early as possible. Newborns should have physical therapy evaluation and ongoing outpatient follow-up. Given the risk of later-onset cognitive, language, and behavioral disabilities, neuropsychological testing in preschool and at school age is highly recommended.; L’accident vasculaire cérébral ischémique artériel néonatal (AVCian) est une pathologie rare. Afin d’actualiser les connaissances sur ce sujet, un groupe de travail multidisciplinaire s’est constitué sous l’égide de la Société française de néonatologie et le Centre national de référence de l’AVC de l’enfant afin de proposer des recommandations sur les facteurs de risque, les modalités de transfert et de prise en charge pré-hospitalière, les modalités diagnostiques et thérapeutiques, le traitement, le pronostic et la prise en charge à court et moyen terme. Ces recommandations ont été réalisées selon la méthodologie de la Haute autorité de santé et en fonctions des thématiques proposées par un comité d’experts. Les principales recommandations issues de ce travail sont : (1) l’orientation du patient vers une unité de réanimation ou de soins intensifs néonatals disposant d’une imagerie par résonance magnétique (IRM) facilement accessible et de la possibilité de réaliser une surveillance continue par électro-encéphalogramme ; (2) le phénobarbital est le médicament de première ligne pour le traitement des crises convulsives ; (3) l’IRM réalisée entre j2 et j4 après la survenue de l’AVCian est la meilleure technique pour confirmer le diagnostic et préciser son extension ; (4) un facteur biologique de risque thrombotique ne doit pas être systématiquement recherché après un AVCian, sauf en cas d’antécédent thrombotique veineux familial ; (5) un traitement thrombolytique n’est pas recommandé ; (6) une prise en charge rééducative précoce est recommandée en cas de déficience motrice évidente.
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- 2017
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47. Antibacterial and Antifungal Activity of Silver Nanoparticles Synthesized using Hypnea muciformis
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J. Saraniya Devi and B. Valentin Bhimba
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Drug Discovery ,Agronomy and Crop Science ,Biotechnology - Published
- 2014
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48. Telemedizin
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Michael Czaplik, Stefan K. Beckers, Rolf Rossaint, B. Valentin, F. Hirsch, Sebastian Bergrath, and J.C. Brokmann
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medicine.medical_specialty ,Emergency medical care ,Telemedicine ,business.industry ,Emergency medicine ,Emergency Medicine ,medicine ,Medical emergency ,Rural area ,business ,medicine.disease - Published
- 2014
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49. Existe-t-il un seuil d’adaptation posologique pour la prophylaxie par posaconazole comprimé en hématologie
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B. Valentin, C. Berhon, M. Messager, B. Hennart, S. Alfandari, A. Cotteau-Leroy, and Pascal Odou
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Infectious Diseases - Abstract
Introduction Le posaconazole est un antifongique triazole utilise majoritairement dans le cadre des prophylaxies fongiques. Il se decline sous trois formes galeniques : la solution buvable, la forme injectable et les comprimes. La forme comprime est commercialisee en France depuis 2015 et presente un profil pharmacocinetique plus avantageux que la solution buvable. L’objectif de cette etude est de faire un etat des lieux des posaconazolemies obtenues chez nos patients sous posaconazole comprime et d’evaluer la possibilite d’une adaptation posologique. Materiels et methodes Il s’agit d’une etude retrospective effectue entre janvier 2016 et novembre 2017. Les patients ayant recu uniquement du posaconazole en comprime a la dose initiale de 300 mg apres dose de charge dans le cas des prophylaxies d’infections fongiques ont ete inclus. Un tableur comprenant les donnees anthropometriques et biologiques (TGO/TGP, albuminemie) des patients, les posaconazolemies et les evenements indesirables a ete utilise. Resultats Durant cette periode, 139 patients ont recu du posaconazole comprime avec un sexe ratio de 0,49 H/F, un âge moyen de 50,4 ± 15,9 ans et un indice de masse corporel (IMC) moyen de 24,7 ± 4,8 kg/m2 (n = 110). Parmi les 478 dosages initiaux effectues, 400 etaient superieur au seuil minimal efficace. Quatre-vingt-sept patients avaient des concentrations toujours superieur a 0,7 mg.L−1 (2,05 ± 1,04 mg.L−1), 39 avaient des concentrations ± superieur a 0,7 mg.L−1 et 13 patients n’ont jamais atteints une posaconazolemie seuil de 0,7 mg.L−1. Il n’existait pas de difference significative entre l’âge, le sexe, l’IMC, le taux d’albumine, de TGO et de TGP entre nos patients ayant ou non atteint la concentration cible (p > 0,05). Parmi les 87 patients, 23 patients ont beneficie d’une diminution de posologie a 200 mg (n = 22) et 100 mg (n = 1). Leurs posaconazolemies initiales etaient de 2,33 mg.L−1 (1,44–4,37 mg.L−1). Dix-huit patients sont restes a des concentrations residuelles satisfaisantes pour l’ensemble de leurs dosages. Quinze evenements indesirables ont ete declares avec 12 troubles hepatiques (cholestase et cytolyse hepatique), 2 hypokaliemies et 1 trouble de la conduction avec des posaconazolemies moyennes de 1,47 ± 0,96 mg.L−1 (dont 5 patients avec une posaconazolemies > 1,5 mg.L−1 et 4 avec des concentrations inferieures a 0,7 mg.L−1) Conclusion Le posaconazole sous forme comprime presente un profil pharmacocinetique interessant. Il reste indispensable de doser les concentrations residuelles de cette molecule au vue de l’absence de profil patient identifie et du nombre de sous dosage constate. Une diminution de posologie semble etre coherente pour les patients presentant une posaconazolemie initiale superieur a 1,5 mg.L−1.
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- 2019
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50. Suivi prospectif des PCR mucorales : données en vie réelle et intérêt en thérapeutique
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S. Panaget, B. Valentin, Karine Faure, Marjorie Cornu, Fanny Vuotto, Boualem Sendid, and M. Chopin
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Infectious Diseases - Abstract
Introduction Les mucormycoses sont associees a une forte mortalite, leur diagnostic reste difficile. La detection d’ADN circulant par PCR permet un diagnostic plus precoce et une optimisation therapeutique. Cet outil est utilise sur notre centre a la fois comme biomarqueur diagnostic chez les patients immunodeprimes symptomatiques mais aussi en screening systematique des patients a haut risque, en particulier les patients brules. Materiels et methodes Il s’agit d’un suivi observationnel descriptif monocentrique de l’utilisation de la PCR mucorales et de sa place dans la strategie de diagnostic et de suivi therapeutique des mucormycoses. Les kits Machery-Nagel et Ademtech pour l’extraction ainsi qu’une q-PCR detectant l’ADN de Mucor/Rhizomucor, Lichtheimia et Rhizomucor ont ete respectivement utilises pour le serum et les biopsies sur notre centre. Resultats Entre avril 2017 et novembre 2018, 691 PCR mucor chez 170 patients ont ete realisees sur notre centre. Quatre cent soixante-cinq PCR (67 %) etaient demandees dans le cadre d’un screening systematique chez 117 patients a risque : 405 (chez des patients brules a plus de 20 % de surface corporelle, 59 chez des patients avec plaie a risque (traumatisme agricole, polytraumatisme) et 1 chez un transplante d’organe avec PCR mucor du donneur positive. Deux cent vingt-six PCR (33 %) etaient demandees pour diagnostic chez 53 patients symptomatiques, majoritairement des patients atteints d’hemopathies malignes (n = 30, 56 %) ou transplantes d’organe (n = 10, 19 %). Au moins une PCR sang, LBA ou tissu revenait positive chez 23 patients (13,5 %). Une mucormycose etait confirmee chez 10 patients : 1 infection disseminee a Lichtheimia chez une enfant de 3 ans avec leucemie, 1 pneumonie a Rhizomucor chez un homme de 35 ans avec leucemie, 1 pneumonie a Rhizopus chez un homme de 57 ans avec leucemie, 1 rhinosonusite a Rhizopus chez une patiente de 64 ans avec un diabete de type 2, 1 osteite tibiale a Rhizopus apres AVP chez un homme de 38 ans, 1 surinfection de brulure chez un homme de 33 ans, 1 pneumonie a Rhizomucor chez une patiente de 66 ans transplantee cardiaque, 1 surinfection de lesions de purpura fulminans a Lichtheimia chez une femme de 28 ans et 1 osteite du bassin a Rhizomucor apres AVP moto chez une homme de 28 ans. Le delai median entre la positivite de la PCR et la culture etait de 6 jours (2–16 jours). Le diagnostic n’etait pas confirme chez 13 patients, il s’agissait pour 12 patients de PCR positives sur biopsie de tissus exposes a une contamination environnementale chez des patients immunocompetents et pour 1 patient d’une reaction croisee avec une fusariose chez une patiente avec hemopathie maligne. Conclusion Dans notre experience, la PCR mucorales permet d’ameliorer la precocite du diagnostic. Son interpretation dans le cadre d’une strategie de screening peut en revanche etre difficile.
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- 2019
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