Search

Your search keyword '"Belhadj-Tahar N"' showing total 4 results
Start Over Author "Belhadj-Tahar N" Publication Year Range Last 10 years
4 results on '"Belhadj-Tahar N"'

1. Thoracic Epidural Analgesia And Survival In Acute Pancreatitis: A Multicenter Propensity Analysis

Author

Jabaudon, M., Belhadj-Tahar, N., Rimmele, T., Joannes-Boyau, O., Bulyez, S., Roger, Charlotte, Malledant, Y., Leone, M., Abback, P., Tamion, F., Dupont, H., Lortat-Jacob, B., Guerci, P., Kerfone, T., Cinotti, R., Jacob, L., Verdier, P., Dugernier, T., Pereira, B., Constantin, J. -M., Network, Azurea, Service d'Anesthésie-Réanimation, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France, parent, CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Foie, métabolismes et cancer, Université de Rennes (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes (URMITE), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR48, Institut des sciences biologiques (INSB-CNRS)-Institut des sciences biologiques (INSB-CNRS)-Centre National de la Recherche Scientifique (CNRS), CHU Rouen, Normandie Université (NU), CHU Clermont-Ferrand, Service d'Accueil des Urgences [CHU Pitié-Salpêtrière] (SAU), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), and INSB-INSB-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases
Abstract

International Conference of the American-Thoracic-Society (ATS), Washington, DC, MAY 19-24, 2017; International audience

Published
2017

3. Dielectric Properties Measurement of Biological Materials Using Non-Destructive Sensors

Author

Belhadj-Tahar, N., Aouabdia, N., and Alquié, Georges.

Abstract

The authors' research work has for objective the study of a sensor with planar resonator for applications in the non-destructive control. In this context, two approaches were defined. In a first part, a conception, a modeling, a simulation with commercial software (HFSS, CST), a realization and measurements were treated on Rectangular Patch Resonators (RPR). The proposed theoretical analysis is based on the Moment Method (MoM) via the Galerkin's approach, in which three types of entire domain basis functions are used to expand the patch currents. While, the first two types of basic functions involve a set of sinusoidal cavity modes without edge conditions (sbf-wo-ec) and with edge conditions (sbf-w-ec), and in order to incorporate the edge conditions (cp-ec), the third one consists of Chebyshev polynomials combinations with weighting factors. These last ones as well as the Green Dyadic spectral functions are efficiently implanted with compact Fortran 90 codes. Two EM commercial software HFSS and CST was used to validate the proposed RPR prototypes. The exactness of the obtained results is estimated using four prototypes operating near 6 GHz, taking into account only the fundamental mode resonant frequency. The theoretical model is compared with the simulations and the measurement results. The second approach of the authors' work which is developed in this paper is focused on the characterization of biological materials in vitro using the RPR prototypes proposed as applicator in the non-destructive control and the medical domain to find the abnormalities of these tissues such as: eczema, psoriasis, cancer, etc. The authors' center of interest will be managed towards the dielectric properties of the biological material to extract the relative permittivity and the loss factor on several samples (liver, fat, chicken, butter, foie gras, etc.).

Published
2015
Full Text
View/download PDF

4. Thoracic Epidural Analgesia and Mortality in Acute Pancreatitis: A Multicenter Propensity Analysis.

Author

Jabaudon M, Belhadj-Tahar N, Rimmelé T, Joannes-Boyau O, Bulyez S, Lefrant JY, Malledant Y, Leone M, Abback PS, Tamion F, Dupont H, Lortat-Jacob B, Guerci P, Kerforne T, Cinotti R, Jacob L, Verdier P, Dugernier T, Pereira B, and Constantin JM

Subjects
Acute Disease, Female, Humans, Intensive Care Units, Male, Middle Aged, Propensity Score, Retrospective Studies, Severity of Illness Index, Analgesia, Epidural mortality, Pancreatitis mortality
Abstract

Objective: Recent preclinical and clinical data suggest that thoracic epidural analgesia, a technique primarily aimed at decreasing pain, might exert anti-inflammatory effects, enhance splanchnic and pancreatic blood flow during acute pancreatitis; however, the influence of epidural analgesia on mortality remains under investigated in this setting. This study was therefore designed to assess the impact of epidural analgesia on mortality in ICU patients with acute pancreatitis., Design: Multicenter retrospective, observational, cohort study., Setting: Seventeen French and Belgian ICUs., Patients: All patients admitted to with acute pancreatitis between June 2009 and March 2014., Interventions: The primary exposure was thoracic epidural analgesia versus standard care without epidural analgesia. The primary outcome was 30-day mortality. Propensity analyses were used to control for bias in treatment assignment and prognostic imbalances., Measurements and Main Results: One thousand three ICU patients with acute pancreatitis were enrolled, of whom 212 died within 30 days. Epidural analgesia was used in 46 patients and was associated with reduced mortality in unadjusted analyses (4% vs. 22%; p = 0.003). After adjustment for baseline variables associated with mortality, epidural analgesia was still an independent predictor of 30-day mortality (adjusted odds ratio, 0.10; [95% CI, 0.02-0.49]; p = 0.004). Using propensity score analysis, the risk of all-cause 30-day mortality in patients with acute pancreatitis receiving epidural analgesia was significantly lower than that in matched patients who did not receive epidural analgesia (2% vs. 17%; p = 0.01)., Conclusions: Among critically ill patients with acute pancreatitis, mortality at 30 days was lower in patients who received epidural analgesia than in comparable patients who did not. These findings support ongoing research on the use of epidural analgesia as a therapeutic intervention in acute pancreatitis.

Published
2018
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results