P Tran Ba Huy

Paris Diderot University, Lutetia Parisorum, Île-de-France, France

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Publications (304)340.55 Total impact

  • P Tran Ba Huy
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    ABSTRACT: Surgery has been long considered to be the treatment of choice for glomus jugulare paragangliomas, as it is the only modality able to totally eradicate the tumour. However, despite considerable progress in interventional radiology and nerve monitoring, surgery is associated with an unacceptably high complication rate for a benign tumour, explaining the growing place of radiotherapy in the management of these tumours. This review of the literature confirms the efficacy of conformal radiotherapy with or without intensity modulation and stereotactic radiotherapy, which both achieve tumour control rates ranging from 90% to almost 100% of cases, but for different tumour volumes, almost constant stabilization or even improvement of symptoms, and a considerably lower rate of adverse effects than with surgery. However, radiotherapy remains contraindicated in the presence of intracranial invasion or extensive osteomyelitis. In the light of these results, together with the improved quality of life and a better knowledge of the natural history of this disease, many authors propose radiotherapy as first-line treatment for all glomus jugulare paragangliomas regardless of their size, particularly in patients with no preoperative deficits.
    European Annals of Otorhinolaryngology, Head and Neck Diseases 06/2014;
  • A. Abdellaoui, P. Tran Ba Huy
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    ABSTRACT: Objectifs Identifier les facteurs épidémiologiques, socioéconomiques, audiométriques et environnementaux influençant le succès ou l’échec de l’appareillage et évaluer l’efficacité de la prothèse auditive de six à neuf mois après sa prescription. Patients et méthodes Enquête prospective nationale menée auprès de 184 patients presbyacousiques. Le recueil des données s’effectuait à l’inclusion par un questionnaire rempli par l’ORL et par le patient et par un second questionnaire rempli entre six et neuf mois plus tard par contact téléphonique avec le patient. Résultats Un tiers des patients ne donnent pas suite à la prescription pour raisons financières ou par manque d’intérêt pour la correction de leur handicap. Chez les deux tiers restants, activités ludiques nécessitant une bonne écoute, vie en couple ou en famille, consultation de leur propre chef, forte motivation, revenus mensuels supérieurs à 1200 Euros, surdité ancienne, difficultés à écouter la télévision et à suivre une conversation dans le bruit semblent les facteurs motivant le patient à se rendre chez l’audioprothésiste. Quatre-vingt pour cent des essais sont concluants. L’achat d’une prothèse survient donc dans 60 % des prescriptions. Les trois principaux critères conditionnant l’achat sont l’avis de l’audioprothésiste, le prix de l’aide auditive et l’efficacité de l’appareil après essais. Dans les quatre situations de la vie courante sélectionnées dans notre questionnaire, la prothèse est portée huit heures ou plus dans 90 % des cas, jugée utile dans 70 %, et procure satisfaction dans 70 %. Qu’elle soit de type strial ou neurosensoriel, la surdité du presbyacousique bénéficie de la correction prothétique de l’audition dans 86 % des cas. Conclusions Les indications de prescription doivent intégrer le niveau de motivation du patient, son entourage, la prise de conscience de son handicap, et ses revenus. L’avis des professionnels ORL et audioprothésistes joue un rôle prépondérant dans l’adoption prothétique. Les prothèses semblent améliorer significativement la qualité de vie du presbyacousique.
    Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale. 12/2013; 130(6):318–324.
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    ABSTRACT: The objective of this study was to report 11 cases of malignant head and neck paraganglioma and to compare their epidemiological, clinical, and genetic characteristics, their natural history and their treatment with those of a series of 131 benign paragangliomas. Retrospective analysis of 142 patients with head and neck paraganglioma managed between 2001 and 2008. Age at the time of diagnosis, gender, primary tumour site, presence of other non-head/neck paragangliomas and/or metastases diagnosed by imaging (CT, MRI, Octreoscan or (18)F-FDG PET), histology, urinary catecholamine and metanephrine levels, family history, and genetic test results were recorded. This series comprised 131 benign head and neck paragangliomas, mostly observed in women with a mean age at diagnosis of 45 years and a predominance of tympanojugular sites (followed by carotid and vagal sites) with 5% of secreting tumours and 20% of multifocal tumours. Eleven patients (7.7%) with a 1:1 sex ratio presented criteria of malignancy. These patients, with a lower mean age (38 years), predominantly presented carotid lesions with a higher rate of secreting and multifocal tumours, 27% and 46% respectively. The main sites of metastases were bone and lymph nodes. No tympanic paragangliomas were observed. Malignant paragangliomas are mainly observed in young patients with multifocal tumours, particularly carotid tumours, and are predominantly related to subunit SDH-B mutation. The work-up in these high-risk patients must include whole body scintigraphy and spine MRI. Malignancy is not necessarily associated with a poor short-term prognosis due to the slow course of the disease.
    European Annals of Otorhinolaryngology, Head and Neck Diseases 11/2013;
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    ABSTRACT: Introduction Le développement considérable de la téléphonie mobile expose de façon inédite leurs utilisateurs aux ondes électromagnétiques. La question de leur impact sur la santé humaine est un enjeu de santé publique et une source d’inquiétude pour la population. Certaines études cliniques ont montré une association entre utilisation de la téléphonie mobile et neurinome de l’acoustique. D’autres n’en montrent aucune. Population et méthode Nous reprenons l’ensemble des études cliniques publiées (études de cohorte, études de registre, études cas–témoins et études de validation) dans la littérature et discutons leurs résultats afin de connaître la nature du lien et son niveau de preuve. Résultats Les études de cohorte sont peu informatives en raison des faibles durées d’exposition et de l’absence de représentativité des cohortes sélectionnées. Les études de registre ne mettent pas en évidence de lien entre l’évolution de l’utilisation du mobile et celle de l’incidence du neurinome de l’acoustique. Les études cas–témoins sont contradictoires et critiquables du fait de leurs limitations méthodologiques. Seul un petit nombre de patients a été inclus dans des études à long terme (supérieures à dix ans). Elles n’ont pas démontré de façon indiscutable un lien de causalité. Les mesures d’exposition sont contestables et non évaluées à long terme. Une étude prospective en cours doit permettre de rechercher un effet majeur des ondes électromagnétiques. Concernant le neurinome, pathologie rare, il sera difficile de démontrer l’absence de lien. Conclusion Il n’existe aucun lien clinique démontré entre téléphonie mobile et neurinome de l’acoustique. Les études disponibles sont imparfaites compte tenu des difficultés de l’évaluation rétrospective de l’exposition.
    Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale. 11/2013; 130(5):280–288.
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    ABSTRACT: Les auteurs dans cet article, réalisé à partir d’une revue de la littérature médicale scientifique (Moteur de recherche PubMed), précisent les éléments qui permettent de diagnostiquer un syndrome de la première bouchée, discutent la physiopathologie de ce syndrome et analysent les modalités thérapeutiques à la disposition de l’otorhino-laryngologiste pour traiter ce syndrome.
    Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale. 11/2013; 130(5):274–279.
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    ABSTRACT: La embriología del oído interno ha progresado recientemente gracias a la microscopia electrónica de barrido y al desarrollo de la biología molecular que permite el estudio de las citocinas. El laberinto membranoso deriva de la placoda auditiva, engrosamiento del ectoblasto que aparece al 23o día. La placoda se invagina durante la quinta semana para formar el otocisto que toma una forma bilobulada: la parte dorsal formará el vestíbulo y la porción ventral, el conducto coclear. Un grupo de células se desprende de la placoda auditiva para formar el ganglio estatoacústico, cuya porción ventral se adosa al conducto coclear y sigue su enrollamiento, transformándose en el ganglio espiral. La primera vuelta de espira de la cóclea se forma a las 7 semanas y las dos vueltas y media se completan a las 9 semanas. En esta fase, la cóclea mide 3 mm de la base al ápex; aumentará de tamaño hasta el quinto mes, cuando alcanza su tamaño adulto. Los espacios perilinfáticos se forman dentro del mesénquima que rodea al canal coclear hacia la 11ª semana y la osificación del laberinto óseo se produce del quinto mes al nacimiento. La cóclea es funcional desde el quinto mes, mientras que la diferenciación celular aún es incompleta. La formación del túnel de Corti y de los espacios de Nuel se continúa hasta el octavo mes. El BDNF (brain-derived neurotrophic factor) y la NT-3 (neurotrophin-3) desempeñan un papel decisivo en el desarrollo de las conexiones nerviosas del oído interno. Por último, es probable que en las interacciones entre células epiteliales y células mesenquimatosas intervengan otras citocinas.
    EMC - Otorrinolaringología. 07/2013; 29(1):1–10.
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    ABSTRACT: Based on a review of the indexed medical literature (PubMed database), the authors describe the clinical features leading to the diagnosis of first bite syndrome, the pathophysiology of this syndrome and analyse the various treatment options available to otorhinolaryngologists to manage this syndrome.
    European Annals of Otorhinolaryngology, Head and Neck Diseases 07/2013;
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    ABSTRACT: OBJECTIVE: We aimed to evaluate rehabilitation of complete facial palsy with 3 procedures for hypoglossal-facial anastomosis: end-to-end ("original"), partial end-to-end with interpositional jump grafting ("jump") and the new partial end to end without grafting ("modified"). METHODS: A medical jury reviewed videos of 36 patients with complete facial palsy who underwent surgery from 1998 to 2008 by original (n = 13), jump (n = 13), and modified (n = 10) procedures. The jury of 5 ear, nose, and throat surgeons who were blinded to the procedure evaluated rehabilitation by 3 facial nerve grading systems-House and Brackman (HB), Sunnybrook, and Freyss scales-and 3 subjective scores for the face at rest and during voluntary and emotional motions. RESULTS: Recovery time was shorter with the modified and original procedures than jump procedure (5, 6, and 8 mo, respectively). All patients achieved at least good results. Scores on the HB scale (I-VI) were mainly III. HB and Sunnybrook scores did not differ by procedure. Freyss score was better for the modified procedure than original and jump procedures. Scores for the face at rest did not differ by procedure, but those during voluntary and emotional movements were worse for the jump procedure than for other procedures. Synkinesis was more severe with the original procedure than other procedures. CONCLUSION: The 3 procedures give satisfactory results for rehabilitation after surgery for facial palsy. The original procedure should be performed in patients with strong mimic or long-standing facial palsy. The jump procedure is delicate and entails risk of weak reinnervation. The modified procedure is a good compromise in terms of muscle tone and side effects.
    Otology & neurotology: official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology 06/2013; · 1.44 Impact Factor
  • A. Abdeldaoui, N. Oker, M. Duet, G. Cunin, P. Tran Ba Huy
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    ABSTRACT: Introduction Le « First Bite syndrome » (FBS) est un syndrome hyperalgique survenant parfois après chirurgie de la région cervicale haute. Il réalise une douleur fulgurante, déclenchée en tout début de repas par la mastication, la déglutition voire le simple contact du bol alimentaire de nature en règle acide, s’atténuant au cours des déglutitions suivantes, réapparaissant à l’identique après un arrêt de l’alimentation de plusieurs minutes ou lors du repas suivant. Objectifs Analyse rétrospective de 17 patients ayant développé un FBS après chirurgie cervicale haute. Résultats Dix-sept patients ont développé un FBS entre 1999 et 2010. La chirurgie avait concerné huit paragangliomes, cinq schwannomes vagals (dont un malin) ou sympathique, trois adénomes pléomorphes et une tumeur de Warthin du lobe profond de la parotide. Dix d’entre eux avaient subi le sacrifice du sympathique cervical, six la ligature de l’artère carotide externe. Un signe de Claude Bernard-Horner était observé en postopératoire chez 12 patients. La douleur caractéristique du FBS était déclenchée par la mastication ou le simple contact du bol alimentaire essentiellement acide. Conclusions Le FBS doit être identifiée par le chirurgien ORL et distinguée des douleurs postopératoires habituelles. L’hypothèse d’une dénervation sympathique avec hyperactivité sécrétoire parasympathique est la plus classique mais un signe de Claude Bernard-Horner n’était présent dans notre série que chez 12 des 17 patients suggérant d’autres possibles mécanismes pathogéniques. Le traitement en est difficile mais finit à terme à atténuer l’intensité de la douleur. Le patient doit être informé de cette complication rare mais susceptible de retentir sur sa qualité de vie postopératoire.
    Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale. 06/2013; 130(3):128–133.
  • A Abdellaoui, P Tran Ba Huy
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    ABSTRACT: OBJECTIVES: To identify epidemiological, socioeconomic, audiometric and environmental factors of success and failure of hearing-aid prescription, and to assess hearing-aid efficacy at 6-9 months after prescription. PATIENTS AND METHODS: A prospective nationwide survey was conducted in France on 184 patients with age-related hearing loss. Inclusion data were collected by a questionnaire filled out by the ENT specialist and patient, and with a second questionnaire filled out by telephone contact with the patient 6-9 months later. RESULTS: One-third of patients failed to fulfill the prescription, either for financial reasons or for lack of interest in correcting their disability. For the other two-thirds, the factors favoring consultation with a hearing-aid fitting specialist seemed to be: leisure activity requiring good hearing, living in a couple or family, spontaneous initial ENT consultation, strong motivation, monthly income greater than €1200, longstanding hearing impairment, and difficulty in listening to television and following a conversation in noise. Eighty percent of hearing-aid trials were successful; 60% of prescriptions were thus followed by hearing-aid purchase. The main three criteria determining purchase were the advice of the hearing-aid fitting specialist, and the price and the effectiveness of the apparatus on trial. In the four daily life situations presented in the questionnaire, the hearing-aid was worn for 8hours or more in 90% of cases, found useful in 70% and proved satisfactory in 70%. Age-related hearing loss, whether metabolic or sensorineural, benefited from hearing-aid correction in 86% of cases. CONCLUSIONS: Indications for hearing-aid prescription should take account of the patient's degree of motivation, awareness of disability, and income. The advice of the ENT and hearing-aid fitting specialists plays a key role in the patient's acceptance of the hearing-aid. Hearing-aids seem to enhance quality of life significantly in age-related hearing loss subjects.
    European Annals of Otorhinolaryngology, Head and Neck Diseases 05/2013;
  • E Mornet, R Kania, E Sauvaget, P Herman, P Tran Ba Huy
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    ABSTRACT: The widespread development of cell-phones entails novel user exposure to electromagnetic fields. Health impact is a public health issue and a source of anxiety in the population. Some clinical studies reported an association between cell and cordless phone use and vestibular schwannoma; others found none. A systematic review was performed of all published clinical studies (cohort, registry, case-control and validation studies), with analysis of results, to determine the nature of the association and the level of evidence. Cohort studies were inconclusive due to short exposure durations and poor representativeness. Registry studies showed no correlation between evolution of cell-phone use and incidence of vestibular schwannoma. Case-control studies reported contradictory results, with methodological flaws. Only a small number of subjects were included in long-term studies (>10years), and these failed to demonstrate any indisputable causal relationship. Exposure assessment methods were debatable, and long-term assessment was lacking. An on-going prospective study should determine any major effect of electromagnetic fields; schwannoma being a rare pathology, absence of association will be difficult to prove. No clinical association has been demonstrated between cell and cordless phone use and vestibular schwannoma. Existing studies are limited by their retrospective assessment of exposure.
    European Annals of Otorhinolaryngology, Head and Neck Diseases 05/2013;
  • A Abdeldaoui, N Oker, M Duet, G Cunin, P Tran Ba Huy
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    ABSTRACT: INTRODUCTION: First Bite Syndrome (FBS) is a rare pain syndrome sometimes occurring after surgery of the upper cervical region. It presents as excruciating pain, triggered at the beginning of a meal by chewing, swallowing or even simple contact with generally acidic food, waning on subsequent bites and recurring with identical features after pausing for several minutes or at the next meal. OBJECTIVES: Retrospective review of 17 patients who developed FBS after upper cervical surgery. RESULTS: Seventeen patients developed FBS between 1999 and 2010 following surgery for paraganglioma in eight cases, vagal or sympathetic schwannoma in five cases (including one malignant tumour), pleiomorphic adenoma in three cases and Warthin's tumour of the deep lobe of the parotid in one case. The cervical sympathetic trunk was sacrificed in 10 cases and the external carotid artery was ligated in six cases. Horner's sign was observed postoperatively in 12 patients. The characteristic pain of FBS was triggered by chewing or simple contact with essentially acidic food. CONCLUSION: FBS must be identified by the head and neck surgeon and distinguished from the usual postoperative pain. The generally accepted hypothesis is that of sympathetic denervation with parasympathetic secretory hyperactivity, but Horner's sign was present in only 12 of the 17 patients of our series, suggesting that other pathogenic mechanisms may be involved. FBS is difficult to treat, but the pain gradually becomes less severe. The patient must be informed about this rare complication that can impact on postoperative quality of life.
    European Annals of Otorhinolaryngology, Head and Neck Diseases 03/2013;
  • P. Tran Ba Huy
    Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale. 02/2012; 129(1):1–2.
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    ABSTRACT: To determine in a guinea pig model the factors of invasiveness of a bipolar electrode implanted in the horizontal semicircular canal (HSC) and to evaluate the consequences on hearing of electrical stimulation of the ampullary nerve. Sixteen guinea pigs divided into four groups underwent surgical opening of the HSC of one ear as follows: control (group 1), cyanoacrylate glue application on the HSC opening (group 2), electrode implantation with cyanoacrylate glue on the HSC opening (group 3), and electrode implantation with electrical stimulation (1 hr/day) for 9 days (group 4). Auditory brainstem responses were recorded before and after surgery and after electrical stimulation. The effectiveness of electrical stimulation in producing a horizontal vestibulo-ocular reflex was evaluated by recording eye movement with video-oculography. Group 1 animals showed hearing loss, and in group 2, sealing the HSC opening with cyanoacrylate glue preserved the hearing thresholds. After electrode implantation, seven of the eight animals showed hearing loss compared with preoperative values. Electrical stimulation did not induce additional hearing loss. Electrode implantation at the canal level entailed a risk of hearing loss in an animal model, but electrical stimulation of the horizontal ampullary nerve did not further alter hearing function.
    Ear and hearing 09/2011; 33(1):118-23. · 2.06 Impact Factor
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    ABSTRACT: To report on the creation and administration of an online Script Concordance Test (SCT) for ear, nose, and throat (ENT), the ENT-SCT. Prospective study. Two tertiary care university centers. In total, 132 individuals were asked to test an ENT-SCT of 20 cases and 94 questions based on the major educational objectives of the ENT residency program. Three levels of experience were tested: medical students, ENT residents, and board-certified otorhinolaryngologists as the expert panel. The test's construct validity-whether scores were related to clinical experience-was statistically analyzed. Reliability was estimated by the Cronbach α internal consistency coefficient. Participants' perception of the test was assessed with the use of a questionnaire. The 65 respondents with usable data were medical students (n = 21), ENT residents (n = 22), and experts (n = 22). Total mean (SD) test scores differed significantly: 76.81 (3.31) for the expert panel, 69.05 (4.35) for residents, and 58.29 (5.86) for students. The Cronbach α coefficient was 0.95. More than two-thirds of the participants found the test to be realistic and relevant for assessing clinical reasoning. The test was also considered fun, interesting, and intuitive. The Web-based ENT-SCT is feasible, reliable, and useful for assessing clinical reasoning. This online assessment tool may have applications for residency programs and continuing medical education.
    Archives of otolaryngology--head & neck surgery 08/2011; 137(8):751-5. · 1.92 Impact Factor
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    ABSTRACT: Recent approval by the US Food and Drug Administration (FDA) of dabigatran etexilate, an oral direct thrombin inhibitor, for the prevention of stroke in patients with atrial fibrillation will likely extend its administration in elderly patients. The risk of major overdosage of dabigatran etexilate in this population is, however, much increased owing to frequent renal function impairment, low body weight, drug interactions that cannot be detected with a routine coagulation test, and no antagonist available. We report herein 2 clinical cases, including 1 fatal case, illustrating our concern regarding the risk of bleeding events in elderly patients.
    Archives of internal medicine 07/2011; 171(14):1285-6. · 11.46 Impact Factor
  • Patrice Tran Ba Huy
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    ABSTRACT: As life expectancy keeps increasing, balance disorders in older patients represent a major medical and public health issue, mostly because they are the most important risk factor for repeated falls. The inevitable deterioration of the physiological mechanisms which control balance explains their important prevalence and their often multifactor nature. A multidisciplinary approach should thus be adopted. However, during physical examination, practitioners can and must identify the general causes (polymedication, metabolic or cardiovascular diseases, etc.), take certain simple environmental actions and, most importantly, look for risk factors for falls. Falls are indeed the first complication of balance disorders and represent a frequent cause of mortality, loss of independence and high institutionalization and, as such, have serious socioeconomic consequences. Any balance disorder in older subjects thus requires in-depth examination and quick medical management.
    La Revue du praticien 06/2011; 61(6):820-2.
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    ABSTRACT: Cervical fasciitis is one of the most severe ENT emergencies, requiring immediate management by a multidisciplinary team. Often due to a benign pharyngeal or dental infection, this life-threatening condition leads to extensive necrosis spreading along the fascia of the neck, possibly to the mediastinum. A retrospective analysis of 150 consecutive patients admitted to our institution between January 2001 and December 2006 showed:--a 7% mortality rate;--pulmonary involvement in one-third of cases and hemodynamic failure or mediastinitis in half the patients;--mechanical ventilation for an average of 10 days, intubation for 13 days, tracheostomy for 31 days, intensive care unit management for 17 days, and hospitalization for 26 days; and--functional and esthetic sequelae in about half the patients. These data underscore the extreme severity of cervicofacial fasciitis and the need to pay close attention to any general or functional signs of severe sepsis in patients with apparently mild head or neck infections. Such patients should be urgently referred to a tertiary center for immediate CT scan and surgical drainage of any cervical or thoracic abscesses. Intensive medical care is needed to manage the frequent cardio-hemodynamic failure and secondary pulmonary/mediastinal infections. The only possible predisposing factors so far identified are inadequate initial medical treatment and self-medication with nonsteroidal antiinflammatory drugs.
    Bulletin de l'Académie nationale de médecine 03/2011; 195(3):661-76; discussion 676-8. · 0.16 Impact Factor
  • P Tran Ba Huy, M Duet
    B-ENT 01/2011; 7 Suppl 17:67-75. · 0.08 Impact Factor
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    ABSTRACT: To investigate the formation of bacterial biofilms on the surface of the electrode array of cochlear implants (CI) explanted because of device failure, without evidence of infection, by use of scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM). Prospective study. Patients from 2 tertiary-care referral centers. CIs were explanted from 9 patients because of device failure. Specimens were immediately snap-frozen in cold isopenthane, stored at -80°C and examined with SEM and CLSM by 3 investigators. Presence of bacterial biofilm ascertained by SEM and CSLM. One specimen showed the formation of a bacterial biofilm on the middle ear part of the electrode array. No biofilm formation was found in the inner-ear part of electrode arrays. In the middle-ear part of the electrode array, a cylindrical cover of human muscular tissue was seen plugging the cochleostomy. This is the first study demonstrating that bacterial biofilms may exist on the surface of the electrode array of CIs explanted because of device failure but not infection. We found 1 case of biofilm formation in 9 explanted CIs. Further studies with larger series of CIs are required to investigate biofilm formation on the surface of CI electrode arrays to address both the pathophysiology of bacterial biofilms and prevention of device-related infections in CI patients.
    Otology & neurotology: official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology 10/2010; 31(8):1320-4. · 1.44 Impact Factor

Publication Stats

2k Citations
340.55 Total Impact Points

Institutions

  • 2009–2013
    • Paris Diderot University
      Lutetia Parisorum, Île-de-France, France
    • Centre Hôpital Universitaire Farhat Hached
      Susa, Sūsah, Tunisia
    • Université René Descartes - Paris 5
      Lutetia Parisorum, Île-de-France, France
  • 1998–2013
    • Hôpital Ambroise Paré – Hôpitaux universitaires Paris Ile-de-France Ouest
      Billancourt, Île-de-France, France
  • 2008–2011
    • Hôpital Lariboisière - Fernand-Widal (Hôpitaux Universitaires Sant-Louis, Lariboisière, Fernand-Widal)
      • Service d’ORL
      Lutetia Parisorum, Île-de-France, France
    • Percy Army Training Hospital
      Clamart, Île-de-France, France
  • 2004–2010
    • Assistance Publique – Hôpitaux de Paris
      Lutetia Parisorum, Île-de-France, France
    • Sapienza University of Rome
      Roma, Latium, Italy
  • 2007
    • Tel Aviv University
      • Department of Zoology
      Tel Aviv, Tel Aviv, Israel
  • 2006
    • Second Military Medical University, Shanghai
      Shanghai, Shanghai Shi, China
  • 2005
    • Ipswich Hospital NHS Trust
      Ipswich, England, United Kingdom
  • 1997–2004
    • National Taiwan University Hospital
      • Department of Internal Medicine
      Taipei, Taipei, Taiwan
  • 2003
    • Chung Shan Hospital
      T’ai-pei, Taipei, Taiwan
  • 2000
    • Clinique Ambroise Paré
      Tolosa de Llenguadoc, Midi-Pyrénées, France
  • 1999
    • Ministère de l'Enseignement supérieur et de la Recherche
      Lutetia Parisorum, Île-de-France, France
  • 1983–1999
    • French Institute of Health and Medical Research
      Lutetia Parisorum, Île-de-France, France