European Hospital Georges Pompidou

Paris, France

European Hospital Georges Pompidou

Paris, France
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Senni K.,Seadev-FermenSys | Pereira J.,University of Paris Descartes | Gueniche F.,University of Paris Descartes | Delbarre-Ladrat C.,French Research Institute for Exploitation of the Sea | And 8 more authors.
Marine Drugs | Year: 2011

The therapeutic potential of natural bioactive compounds such as polysaccharides, especially glycosaminoglycans, is now well documented, and this activity combined with natural biodiversity will allow the development of a new generation of therapeutics. Advances in our understanding of the biosynthesis, structure and function of complex glycans from mammalian origin have shown the crucial role of this class of molecules to modulate disease processes and the importance of a deeper knowledge of structure-activity relationships. Marine environment offers a tremendous biodiversity and original polysaccharides have been discovered presenting a great chemical diversity that is largely species specific. The study of the biological properties of the polysaccharides from marine eukaryotes and marine prokaryotes revealed that the polysaccharides from the marine environment could provide a valid alternative to traditional polysaccharides such as glycosaminoglycans. Marine polysaccharides present a real potential for natural product drug discovery and for the delivery of new marine derived products for therapeutic applications. © 2011 by the authors.

Clemmensen P.,Copenhagen University | Grieco N.,Hospital Niguarda Ca Granda Milan | Ince H.,University of Rostock | Danchin N.,European Hospital Georges Pompidou | And 4 more authors.
European heart journal. Acute cardiovascular care | Year: 2015

AIMS: Early initiation of dual antiplatelet therapy (DAPT) is guideline-recommended. MULTIPRAC was conducted to gain insights into the use patterns and outcomes of pre-hospital DAPT initiation with prasugrel or clopidogrel.METHODS AND RESULTS: MULTIPRAC is a multinational, multicentre, prospective registry enrolling 2053 ST-segment elevation myocardial infarction (STEMI) patients. Patients were grouped according to adherence to the initially prescribed thienopyridine. Pre-hospital use of prasugrel increased from 12.5% to 67.1% at study end. Prasugrel compared to clopidogrel-initiated patients more often adhered to the medication through discharge (87% vs. 38%) whereas 49% of the clopidogrel-initiated patients were switched to prasugrel. Patients who continued on clopidogrel were substantially older. In-hospital mortality was 0.5%, early stent thrombosis 0.1%. The major adverse cardiac events (MACE) rate was 1.6% in prasugrel-treated vs. 2.3% in clopidogrel-treated patients (adjusted OR 0.749, 95% CI [0.285-1.968]). Non-coronary artery bypass graft (non-CABG) bleeding occurred in 4.1% of prasugrel-treated vs. 6.1% of clopidogrel-treated patients (adjusted OR 0.686 [0.349-1.349]). Pre-percutaneous coronary intervention (PCI) TIMI flow 2-3 was seen in 38.7% treated with prasugrel vs. 35.6% with clopidogrel (adjusted OR 1.170 [0.863-1.585]). Post PCI ST-segment resolution ⩾50%, was 71.6% with prasugrel vs. 65.0% with clopidogrel (adjusted OR 1.543 [1.138-2.093], p=0.0052).CONCLUSIONS: MULTIPRAC demonstrated a steady increase in prasugrel use over time without an increase in bleeding rates compared to clopidogrel. ST resolution was more pronounced with prasugrel. Switching between antiplatelet drugs occurs frequently. The low rates of MACE, in-hospital mortality and bleeding, suggests that pre-hospital loading with thienopyridines is confined to low-risk patients. These results emphasize the need for more randomized pre-hospital studies and should be seen in the context of upcoming randomized trials involving pre-hospital antiplatelet therapies. © The European Society of Cardiology 2014.

Watson R.,Northumbria University | Lindner S.,Leibniz Institute for Natural Product Research and Infection Biology | Bordereau P.,Friedrich - Schiller University of Jena | Hunze E.-M.,Northumbria University | And 7 more authors.
Immunobiology | Year: 2014

The screening of all atypical haemolytic uraemic syndrome (aHUS) patients for factor H autoantibodies is best practice. However, there is no consensus assay for the reporting of factor H autoantibody titres. In this study, three European complement laboratories with expertise in the field of autoantibody testing address this by systematically evaluating several ELISA methods used for the detection of factor H autoantibodies.All methods tested adequately detect high titre samples. However, this study recommends the Paris method for the detection and reporting of factor H autoantibodies to be used when setting up a factor H autoantibody screen. The importance of individual sample background subtraction in these ELISA tests was established. The use of a relative or arbitrary unit index with a common positive and negative serum allowed for consistent comparison of findings from different test centres. Therefore, it is recommended that a standard arbitrary unit scale based on a titration curve from a common positive anti-serum be adopted to allow future establishment of the relative importance of particular titres of factor H autoantibodies in aHUS.Systematic assay for the presence of factor H autoantibodies in patients using the Paris method will provide the longitudinal analysis needed to fully establish the importance of factor H autoantibodies in disease. This will feed into additional research to clarify whether additional factors have a bearing on the phenotype/outcome of autoimmune aHUS. © 2013 Elsevier GmbH.

Blachier M.,University of Paris Descartes | Dauvilliers Y.,Montpellier University | Jaussent I.,Montpellier University | Helmer C.,French Institute of Health and Medical Research | And 9 more authors.
Annals of Neurology | Year: 2012

Objective: We assessed whether excessive daytime sleepiness (EDS) at baseline was associated with subsequent coronary heart disease (CHD) and stroke events. Methods: The Three City Study, a French population-based multicenter prospective study, included 7,007 subjects aged ≥65 years with no personal history of CHD, stroke, or dementia, and self-rated EDS as never, rare, regular, or frequent in response to a face-to-face questionnaire. Hazard ratios (HRs) for the first episode of stroke and CHD over 6 years were estimated using a Cox proportional hazards model with age as the time scale. Results: The mean age of the cohort was 73.7 years (standard deviation, 5.37), 63% were women, and 13.3% and 4.3% reported regular and frequent EDS, respectively. After a median follow-up period of 5.1 years, 372 subjects experienced a first event, either stroke (122 subjects) or a CHD event (250 subjects). The increased risk of CHD and stroke was confined to the group with frequent EDS, and was 1.73× as much as in the group that reported never having EDS (HR, 1.73; 95% confidence interval [CI], 1.15-2.60), after adjustment for confounding and mediating factors. This association was seen in those without hypertension but not in those with hypertension at baseline (p for interaction = 0.01). Moreover, the association with frequent EDS was statistically significant for stroke (HR, 2.10; 95% CI, 1.13-3.89) but not for CHD (HR, 1.51; 95% CI, 0.87-2.61). Interpretation: The current study suggests that frequent EDS is independently associated with future vascular events and stroke in particular in healthy community-dwelling elderly subjects. Copyright © 2011 American Neurological Association.

Canuel V.,University of Paris Descartes | Rance B.,University Hospital Georges Pompidou | Rance B.,University of Paris Descartes | Avillach P.,University of Paris Descartes | And 2 more authors.
Briefings in Bioinformatics | Year: 2015

The rise of personalized medicine and the availability of high-throughput molecular analyses in the context of clinical care have increased the need for adequate tools for translational researchers to manage and explore these data. We reviewed the biomedical literature for translational platforms allowing the management and exploration of clinical and omics data, and identified seven platforms: BRISK, caTRIP, cBio Cancer Portal, G-DOC, iCOD, iDASH and tranSMART. We analyzed these platforms along seven major axes. (1) The community axis regrouped information regarding initiators and funders of the project, as well as availability status and references. (2) We regrouped under the information content axis the nature of the clinical and omics data handledby each system. (3) The privacy management environment axis encompassed functionalities allowing control over data privacy. (4) In the analysis support axis, we detailed the analytical and statistical tools provided by the platforms.We also explored (5) interoperability support and (6) system requirements.The final axis (7) platform support listed the availability of documentation and installation procedures. A large heterogeneity was observed in regard to the capability tomanage phenotype information in addition to omics data, their security and interoperability features. The analytical and visualization features strongly depend on the considered platform. Similarly, the availability of the systems is variable.This review aims at providing the reader with the background to choose the platform best suited to their needs. To conclude, we discuss the desiderata for optimal translational research platforms, in terms of privacy, interoperability and technical features. © The Author 2013.

Scotte F.,European Hospital Georges Pompidou | Launay-Vacher V.,Pitie Salpetriere Hospital | Rey J.-B.,Institute Jean Godinot
Targeted Oncology | Year: 2012

Biosimilars are equivalent drugs for other biotechnological drugs for which patent has expired. These biopharmaceuticals are often looked upon as simple copies of parent drugs whose goal is solely to potentially generate costs savings. The expansion of available drugs is a subject of attention, criticism and quarrels, often related to a lack of product knowledge. These drugs are copies but need scientific development that must meet many strict rules. Many questions arise in connection with the marketing of several biosimilar drugs in the field of hematopoietic growth factors of white and red cells. Many of them should be discussed. © 2012 Springer-Verlag.

Becker C.,Lymphedema Center | Vasile J.V.,New York Eye and Ear Infirmary | Levine J.L.,New York Eye and Ear Infirmary | Batista B.N.,Lymphedema Center | And 3 more authors.
Clinics in Plastic Surgery | Year: 2012

Lymphedema is a chronic and progressive condition that occurs after cancer treatment. Autologous lymph node transplant, or microsurgical vascularized lymph node transfer (ALNT), is a surgical treatment option that brings vascularized vascular endothelial growth factor-C-producing tissue into the operated field to promote lymphangiogenesis and bridge the distal obstructed lymphatic system with the proximal lymphatic system. Operative techniques for upper- and lower-extremity ALNT are described with 3 donor lymph node flaps (inguinal, thoracic, cervical). Surgical technique is described for the combination of ALNT with abdominal flaps and nonabdominal flaps. Imaging showing restoration of lymphatic drainage after ALNT is shown. © 2012 Elsevier Inc.

Gregory T.M.,European Hospital Georges Pompidou | Gregory T.M.,Imperial College London | Sankey A.,St Marys Hospital | Augereau B.,European Hospital Georges Pompidou | And 5 more authors.
PLoS ONE | Year: 2013

Background:The success of Total Shoulder Arthroplasty (TSA) is believed to depend on the restoration of the natural anatomy of the joint and a key development has been the introduction of modular humeral components to more accurately restore the patient's anatomy. However, there are no peer-reviewed studies that have reported the degree of glenoid component mal-position achieved in clinical practice and the clinical outcome of such mal-position. The main purpose of this study was to assess the accuracy of glenoid implant positioning during TSA and to relate it to the radiological (occurrence of radiolucent lines and osteolysis on CT) and clinical outcomes.Methods:68 TSAs were assessed with a mean follow-up of 38+/-27 months. The clinical evaluation consisted of measuring the mobility as well as of the Constant Score. The radiological evaluation was performed on CT-scans in which metal artefacts had been eliminated. From the CT-scans radiolucent lines and osteolysis were assessed. The positions of the glenoid and humeral components were also measured from the CT scans.Results:Four position glenoid component parameters were calculated The posterior version (6°±12°; mean ± SD), the superior tilt (12°±17°), the rotation of the implant relative to the scapular plane (3°±14°) and the off-set distance of the centre of the glenoid implant from the scapular plane (6±4 mm). An inferiorly inclined implant was found to be associated with higher levels of radiolucent lines while retroversion and non-neutral rotation were associated with a reduced range of motion.Conclusion:this study demonstrates that glenoid implants of anatomic TSA are poorly positioned and that this malposition has a direct effect on the clinical and radiological outcome. Thus, further developments in glenoid implantation techniques are required to enable the surgeon to achieve a desired implant position and outcome. © 2013 Gregory et al.

Van Der Linden P.,European Hospital Georges Pompidou | Van Der Linden P.,University of Paris Descartes | Steichen O.,University of Paris Descartes | Steichen O.,European Hospital Georges Pompidou | And 5 more authors.
Journal of Hypertension | Year: 2012

Objective: Adrenalectomy for unilateral primary aldosteronism cures hypertension in less than 50% of patients, but improvement is observed in most of the remaining ones. Our goal was to quantify the blood pressure (BP) decrease adjusted for medication changes following adrenalectomy and to identify preoperative predictors of this outcome. Methods: We analyzed simultaneous changes in BP and medication by reviewing the records of 156 consecutive patients who had undergone adrenalectomy for unilateral primary aldosteronism in one center between 2001 and 2009 for whom postoperative follow-up data were available. Results: Median [interquartile range] baseline SBP was 149 [135-160] mmHg on drugs from two [1-3] different classes. After adrenalectomy, SBP decreased by 21 [5-31] mmHg and the number of drug classes administered, by one [0-2]. The decrease in SBP, adjusted for the change in the number of drug classes, was 26 [14-36] mmHg. Each drug class dropped after surgery was equivalent to a 5 mmHg SBP decrease. Patients with higher preoperative BP or serum sodium levels experienced a greater BP decrease after adrenalectomy. Adrenalectomy cured hypertension in 68 (44%) patients. Hypertension was less likely to be cured in patients with a longer history of hypertension, higher preoperative BP levels, larger number of drug classes, or lower urinary aldosterone levels. Conclusion: Although patients with severe hypertension are likely to derive considerable benefits from adrenalectomy in terms of BP or treatment reduction, they should be warned that hypertension cure is unlikely. © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins.

Oudard S.,European Hospital Georges Pompidou | Oudard S.,University of Paris Descartes | Vano Y.,European Hospital Georges Pompidou | Vano Y.,University of Paris Descartes
Current Opinion in Urology | Year: 2015

Purpose of review To explore the accumulating evidence and feasibility of rechallenge with agents targeting the vascular endothelial growth factor (VEGF) and mammalian target of rapamycin (mTOR) pathways for incorporation into the evolving management algorithm for metastatic renal-cell carcinoma (mRCC). Recent findings The current standard of care after the development of resistance to first-line targeted therapies in mRCC is sequential treatment with subsequent lines of alternative anti-VEGF agents or mTOR inhibitors, with optimal sequencing being the focus of ongoing research. Recent evidence from case study and retrospective reports suggests that mRCC patients can achieve important clinical benefits from rechallenge at later lines of therapy with the same targeted therapy used for previous line treatment. Further, the results of REchallenge with SUnitinib in MEtastatic, the first study of sunitinib rechallenge to include a prospective component, reinforce the potential for prolonged survival with this treatment approach for mRCC patients. Summary Rechallenge represents an important and feasible therapeutic option for the future treatment of mRCC patients. The results of ongoing prospective studies are expected to further evaluate the benefits of rechallenge and better inform wherein this approach fits in the treatment algorithm for mRCC. © 2015 Wolters Kluwer Health, Inc. All rights reserved.

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