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1. Stability of the standard incus coupling of the Carina middle ear actuator after 1.5T MRI.

Author

Guy Fierens, Nicolas Verhaert, Farida Benoudiba, Marie-France Bellin, Dennis Ducreux, Jean-François Papon, and Jérôme Nevoux

Subjects
Medicine, Science
Abstract

Limited data is available concerning the safety of active middle ear implants (AMEI) during Magnetic Resonance Imaging (MRI). Measurements in temporal bones are the gold standard for preclinical assessment of device safety. In this study the coupling stability of an actuator as used in a fully implantable AMEI was determined in temporal bones. Eleven temporal bones were implanted with the actuator according to the manufacturer's surgical guidelines. The actuator was coupled on the incus short process as recommended for sensorineural hearing loss. Temporal bones were exposed 10 times to the MRI magnetic field by entering the MRI suite in a clinically relevant way. Computed Tomography (CT) images were acquired before and after the experiment to investigate the risk of actuator dislocation. Based on the electrical impedance of the actuator, the loading of the actuator to the incus was confirmed. Relative actuator displacement was determined on the CT images by comparing the initial with the final actuator position in 3D space. Impedance curves were analyzed after each exposure to check the loading of the actuator to the ossicles. Analysis of CT images with a 0.30.6 mm in-plane resolution indicate no actuator displacement. The maximum detected change in impedance for all actuators was 8.43 Ω at the actuator's resonance frequency. Impedance curves measured when the actuator was retracted from the short process after the experiment still indicate the presence of a clear resonance peak. No actuator displacement or dislocation could be detected in the analysis of CT images and the measured impedance curves. Impedance curves obtained when the actuator was retracted from the incus short process still show a clear resonance peak, indicating the device is still functional after the MRI exposures.

Published
2020
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2. Diffusion tensor magnetic resonance imaging of trigeminal nerves in relapsing herpetic keratouveitis.

Author

Antoine Rousseau, Ghaïdaa Nasser, Christophe Chiquet, Emmanuel Barreau, Gael Gendron, Godefroy Kaswin, Mohamed M'Garrech, Farida Benoudiba, Denis Ducreux, and Marc Labetoulle

Subjects
Medicine, Science
Abstract

Corneal hypoesthesia is the landmark of HSV and VZV keratitis and can lead to neurotrophic keratitis. Diffusion tensor imaging (DTI) is a new magnetic resonance imaging (MRI) derived technique, which offers possibilities to study axonal architecture. We aimed at assessing the potential impact of recurrent HSV or VZV-related keratitis on the axonal architecture of trigeminal nerves using DTI.Prospective non-interventional study.Twelve patients and 24 controls.DTI using MRI of the trigeminal fibers and corneal esthesiometry using the Cochet-Bonnet esthesiometer were acquired for patients affected by unilateral and recurrent HSV or VZV-related keratitis (3 months after the last corneal inflammatory event), and control subjects with no history of ocular or neuronal disease affecting the trigeminal pathways.Fractional anisotropy (FA) and apparent diffusion coefficient (ADC) were compared between the 2 eyes of both patients and controls, and correlated with corneal esthesiometry.FA was lower in the trigeminal fibers ipsilateral to the affected eye compared to the non-affected side (0.39±0.02 versus 0.46±0.04, P=0.03). This difference was more important than the intra-individual variability observed in controls. Concomitantly, the asymmetry in ADC results was significantly correlated with the loss of corneal sensitivity in the affected eye.Corneal hypoesthesia related to HSV and VZV keratitis is associated with persistent modifications in the architecture and functionality of the trigeminal fibers. These results add further explanation to the pathogenesis of HSV and VZV-induced neurotrophic keratitis, which may occur despite an apparent quiescence of the disease.

Published
2015
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3. Otological Manifestations in Adults with Primary Ciliary Dyskinesia: A Controlled Radio-Clinical Study

Author

Mihaela Alexandru, Paul de Boissieu, Farida Benoudiba, Malik Moustarhfir, Sookyung Kim, Émilie Bequignon, Isabelle Honoré, Gilles Garcia, Rana Mitri-Frangieh, Marie Legendre, Bruno Crestani, Camille Taillé, Estelle Escudier, Bernard Maitre, Jean-François Papon, Jérôme Nevoux, Service d’ORL et de chirurgie cervico-faciale [CHU Le Kremlin-Bicêtre], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-AP-HP Hôpital Bicêtre (Le Kremlin-Bicêtre), Université Paris-Saclay, Public Health and Epidemiology Department [Le Kremlin-Bicêtre], AP-HP Hôpital Bicêtre (Le Kremlin-Bicêtre), Service de Neuroradiologie [CHU de Bicêtre], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Molecular virology and immunology – Physiopathology and therapeutic of chronic viral hepatitis (Team 18) (Inserm U955), Institut Mondor de Recherche Biomédicale (IMRB), Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Université Paris-Est (UPE), Biomécanique & Appareil Respiratoire (BAR), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Hôpital Henri Mondor, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Henri Mondor-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), CHI Créteil, Service de pneumologie [CHU Cochin], Hôpital Cochin [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université Paris Cité (UPCité), Service de pneumologie [CHU Bicêtre], Maladies génétiques d'expression pédiatrique [CHU Trousseau] (Inserm U933), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), UF de Génétique moléculaire [CHU Trousseau], CHU Trousseau [APHP], AP-HP - Hôpital Bichat - Claude Bernard [Paris], Physiopathologie et Epidémiologie des Maladies Respiratoires (PHERE (UMR_S_1152 / U1152)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Laboratoire d'Excellence INFLAMEX [Paris], Université Sorbonne Paris Cité (USPC), Plateforme F-CRIN, Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de Pneumologie [CHI Créteil], Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Neurophysiologie de la Synapse Auditive, Université de Bordeaux (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU de Bordeaux Pellegrin [Bordeaux]-Neuroscience Institute, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Institut National de la Santé et de la Recherche Médicale (INSERM), and Couvet, Sandrine

Subjects
[SDV] Life Sciences [q-bio], [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, [SDV.MHEP.OS] Life Sciences [q-bio]/Human health and pathology/Sensory Organs, chronic otitis media, [SDV]Life Sciences [q-bio], otitis media with effusion, primary ciliary dyskinesia, General Medicine, [SDV.GEN.GH] Life Sciences [q-bio]/Genetics/Human genetics, temporal bone CT scan, [SDV.MHEP.OS]Life Sciences [q-bio]/Human health and pathology/Sensory Organs, hearing loss
Abstract

International audience; Primary ciliary dyskinesia (PCD) is a rare genetical disease characterized by an abnormal structure or function of the cilia, causing sinusitis, otitis, and bronchiectasis. Hearing loss affects 60% of PCD patients, but data are lacking concerning hearing and temporal bone imaging in adults. Our aim was to describe clinical and radiological ear disease in adults with genetically confirmed PCD. Data were recorded from January 2018 to December 2019. PCD patients were compared with controls with bronchiectasis without PCD. Clinical examination included otomicroscopy and auditory tests. A temporal bone CT scan (TBCT) was systematically performed. Seventeen patients (34 ears) were included in each group. The eardrums were abnormal in 25 (74%) PCD ears versus 8 (24%) ears in the controls (p < 0.05). Conductive hearing loss was more frequent in the PCD group (24% vs. 12% in controls). TBCT were abnormal in 94% PCD patients vs. 32% in the controls (p < 0.05). The Main CT-scan images in PCD were middle ear inflammation (65%), mastoid condensation (62%), or ossicular anomalies (35%). With its excellent sensitivity, TBCT gives typical arguments for PCD diagnosis, adding otological signs to the usual sinus CT signs (hypoplasia, aplasia). Systematic TBCT could be useful in the initial evaluation of patients with suspicion of PCD.

Published
2022
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4. Liste des collaborateurs

Author

Leonardo Astudillo, Charles Aussedat, Sonia Ayari, Sonanda Bailleux, Béatrix Barry, Farida Benoudiba, René-Jean Bensadoun, Claude Bigorgne, Guillaume de Bonnecaze, César Cartier, Dominique Chevalier, Valérie Costes-Martineau, Aurélie Coudert, Monique Courtade-Saïdi, Sophie Espinoza, Nicolas Fakhry, Frédéric Faure, Pierre Fayoux, François-Régis Ferrand, Patrice Gallet, Renaud Garrel, Franck Jegoux, Thibault Kennel, Jean Lacau Saint Guily, Benjamin Lallemant, Nicolas Leboulanger, Jean-Christophe Leclère, Jean-Michel Lopez, Aïcha LTaief Boudrigua, Marie Mailly, Marc Makeieff, Olivier Malard, Francis Marchal, Rémi Marianowski, Pierre Mattei, Pierre Mogultay, Erwan de Monès del Pujol, Éric Moreddu, Sylvain Morinière, Richard Nicollas, Jean-Michel Prades, Gaëlle Regnier, Christian-Adrien Righini, Angélique Rome, Juliette Thariat, Idriss Troussier, Emmanuelle Uro-Coste, Arthur Varoquaux, and Sébastien Vergez

Published
2020
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5. Les auteurs

Author

Vincent Couloigner, Pierre Fayoux, Marc Makeieff, Richard Nicollas, Christian Adrien Righini, Ronan Abgral, Mohamed Akkari, Sonia Ayari, Bertrand Baujat, Farida Benoudiba, Jean-Loup Bensimon, Sophie Bernard, Annouk Bisdorff-Bresson, Pierre Blanchard, Michel Borzic, Julie Boyer, Alexandre Bozec, Estéban Brenet, Ingrid Breuskin, Marie-Noëlle Calmels, François Chalard, Caroline Chopinet, Sophie Cortese, Valérie Costes-Martineau, Guillaume De Bonnecaze, Christian Debry, Valeria Della Valle, Erwan de Monès del Pujol, Xavier Dufour, Florent Espitalier, Nicolas Fakhry, Yohan Gallois, Gabriel Garcia, Catherine Garel, Renaud Garrel, Sophie Gorostis, Philippe Gorphe, Joanne Guerlain, Dana M. Hartl, Franck Jegoux, Marc Labrousse, Antoine Larralde, Nicolas Leboulanger, Justine Lerat, Sylvain Morinière, François Mouawad, Sophie Périé, Soizick Pondaven-Letourmy, Jean-Michel Prades, Jean Rousset, Gilles Russ, Bénédicte Rysman, Thomas Sagardoy, Laure Santini, Marc Tassart, Natacha Teissier, Sébastien Vergez, and Slimane Zerdoud

Published
2018
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6. [Techniques and progress in the imaging of the ear]

Author

Antoine, Garin, Farida, Benoudiba, and Denis, Ducreux

Subjects
Humans, Ear Diseases, Tomography, X-Ray Computed, Magnetic Resonance Imaging, Algorithms
Abstract

Ear and temporal bone imaging is essential for the diagnostic and preoperative management of middle ear lesions. The scanner is the exam of choice to analyze the walls and the contents of the middle ear. MRI is used to characterize the opacities of the middle ear and to evaluate possible neurological complications. Modern imaging techniques allow intraoperative guidance in otological surgery. Hearing implants are not always a contraindication to MRI but require precautions according to the type of implant.

Published
2017

7. LONG-TERM FOLLOW-UP OF CHIARI-RELATED SYRINGOMYELIA IN ADULTS

Author

Philippe David, Marc Tadie, Silvia Morar, Nozar Aghakhani, Catherine Lacroix, Farida Benoudiba, and Fabrice Parker

Subjects
Adult, Male, medicine.medical_specialty, Adolescent, Basilar invagination, Comorbidity, Risk Assessment, Preoperative care, Young Adult, Risk Factors, medicine, Humans, Cyst, Young adult, Retrospective Studies, business.industry, Retrospective cohort study, Middle Aged, medicine.disease, Syringomyelia, Arnold-Chiari Malformation, Surgery, Treatment Outcome, Female, France, Neurology (clinical), Arachnoiditis, business, Follow-Up Studies
Abstract

Objective To determine the long-term outcome of surgically treated Chiari-related syringomyelia. Methods The medical charts of 157 consecutive surgically treated patients with Chiari-related syringomyelia were retrospectively analyzed. Factors predicting outcome, either clinical or radiological, are discussed, and our results are compared with those of other large series in the literature. Results The study included 74 men and 83 women (age range, 16-75 years; mean age at surgery, 38.3 years). Pain and sensory disturbance were the most frequent initial symptoms. The average duration of preoperative symptoms was 8.2 years. The follow-up period ranged from 82 to 204 months (median, 88 months). At the end of the study, 99 patients (63.06%) had improved, 48 (30.58%) had stabilized, 9 (5.73%) had worsened, and 1 (0.63%) had died during the postoperative period. Factors predicting improvement or stabilization were young age at the time of surgery and clinical signs of paroxysmal intracranial hypertension. Factors associated with a poor outcome were older age at the time of surgery, arachnoiditis, and a clinical feature of long-tract impairment syndrome. The presence of arachnoiditis or of basilar invagination was associated with poor clinical presentation (P = 0.05 and 0.0001, respectively). The extent of the cyst on postoperative magnetic resonance imaging was a predictor of poor clinical outcome (P = 0.002). Conclusion Our results confirmed that surgery is an effective and safe treatment of Chiari-related syringomyelia, with a 90% chance of long-term stabilization or improvement on average. Surgery should be proposed as soon as possible in patients with clearly progressing clinical features.

Published
2009
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8. Liste des collaborateurs

Author

Catherine Alaeddine-Lejalle, Mélika Amor-Sahli, Axelle Bailhache, Jean-Michel Bartoli, Farida Benoudiba, Raphaël Blanc, Michel Bléry, Florence Boccara-Rodriguez, Fabrice Bonneville, Mokran Boukhelifa, Christopher Bourdet, Brigitte Bourelière, Hervé Brunel, Pierre Cassagneau, Delphine Caudal, Christophe Chagnaud, Pierre Champsaur, Frédérique Chapon, Jean-Baptiste Charrier, Dominique Chevalier, Frédéric Clarençon, Frédéric Cohen, Fabien Craighero, Florian Desmot, Arnaud Devèze, Philippe Dory-Lautrec, Aurélie Drier, Frédérique Dubrulle, Aïda El Amri, David Facon, Jean-Claude Ferrié, Loïc Gaillandre, Jean-Christophe Gentric, Nadine Girard, Daphné Guenoun, Alexis Jacquier, Jean-Michel Klossek, Jean-Pierre Lavieille, Marine Lefèvre, Guillaume Louis, Jacques-Paul Magnan, Sandrine Marciano-Chagnaud, Claude Marsault, Nadine Martin-Duverneuil, Philippe Meriot, Cyril Muller, Olivier Monnet, Guy Moulin, Sophie Perie, Gilles Piana, Jean-Daniel Piekarski, Géraldine Placko-Parola, Pascale Siles, Raphaëlle Souillard-Scemama, Marc Tassart, Jean-Marc Thomassin, Arthur Varoquaux, Vincent Vidal, Marc Williams, and Emilie Wikberg-Lafont

Published
2013
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9. Intramedullary spinal ependymomas: analysis of a consecutive series of 82 adult cases with particular attention to patients with no preoperative neurological deficit

Author

Philippe David, Marc Tadie, Farida Benoudiba, Fabrice Parker, Nozar Aghakhani, and Catherine Lacroix

Subjects
Ependymoma, Adult, Male, medicine.medical_specialty, Adolescent, Preoperative care, law.invention, Central nervous system disease, Intramedullary rod, Cohort Studies, law, medicine, Humans, Paresthesia, Spinal Cord Neoplasms, Aged, Retrospective Studies, Neck Pain, business.industry, Retrospective cohort study, Middle Aged, medicine.disease, Surgery, Radiography, medicine.anatomical_structure, Treatment Outcome, Cervical Vertebrae, Female, Neurology (clinical), business, Complication, Cervical vertebrae, Cohort study
Abstract

Objective Surgery should be considered for patients with intramedullary spinal ependymomas (ISE), particularly those presenting with a neurological deficit preoperatively. In contrast, it is still a debatable matter whether to recommend the same approach for patients with no neurological impairment. To investigate this matter, we analyzed the data of 82 consecutive patients with ISEs treated at our institution. Methods We reviewed the medical charts of all ISE patients undergoing operation at our institution between 1985 and 2000. Particular attention was given to patients without neurological deficit before surgery. Results Eighty-two consecutive ISE patients were included in this study. Preoperatively, a neurological deficit of variable severity was present in 72 patients (Group A, 88%) and absent in 10 patients (Group B, 12%). In the latter group, seven patients had progressive and nonspecific pain as the only presenting symptom; two had arm dysesthesias; and in one patient, ISE was diagnosed incidentally. The mean duration of their symptoms was 21 months. We achieved a total tumor excision in nine patients and subtotal removal in one. At the last follow-up assessment (mean, 45 mo), all Group B patients remained at Grade I of the McCormick classification, except one, who deteriorated to Grade Ib. Furthermore, nonspecific pain diminished in three patients, stabilized in four, and worsened in one. Arm dysesthesias diminished in one patient and stabilized in the other. No surgery-related complication or recurrence was recorded in these patients. Conclusion Surgery should be carefully considered for ISE patients with no objective neurological deficit preoperatively because, in our experience, it resolves their preoperative complaints in 30% of cases, stabilizes them in 60%, and worsens them in 10%.

Published
2008

10. Liste des collaborateurs

Author

Frédérique, Dubrulle, Nadine, Martin-Duverneuil, Mélika, Amor-Sahli, Claire, Ancelet, Barbara, Aupy, Farida, Benoudiba, François, Bidault, Pierre, Blanchard, Anne-Laure, Bocher, Gerald, Bonardel, Frank, Boudghène, Mokran, Boukhelifa, Dominique, Chevalier, Frédéric, Clarençon, Michel, Cymbalista, Nicolas, Daly-Schveitzer, Aurélie, Drier, Xavier, Dufour, Jean-Claude, Ferrié, Claire, Foirest, Loïc, Gaillandre, Anne-Laure, Gaultier, Jean-Christophe, Gentric, Philippe, Halimi, Jean-Michel, Klossek, Delphine, Leclercq, Philippe, Meriot, Jérome, Nevoux, Sophie, Périé, Kévin, Premat, Ibtissem, Radhouani, Claudia, Rollia-Bigliani, Jean, Rousset, Blandine, Ruhin, Benedicte, Rysman, Thomas, Schoumann, Eimad, Shotar, Raphaëlle, Souillard-Scemama, Nader-Antoine, Sourour, Mihaela-Cristina, Stefan, Frédéric, Tankéré, Marc, Tassart, and Marc, Williams

Published
2021
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