D Chevalier

CHRU de Strasbourg, Strasburg, Alsace, France

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Publications (144)225.15 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: To assess subjective improvement of olfactory function following endoscopic sinus surgery (ESS) in chronic rhinosinusitis associated with nasal polyps (CRSwNP) and to analyse factors of recovery with the European Test of Olfactory Capabilities (ETOC). We carried out a prospective study of 30 patients with CRSwNP from November 2011 to April 2013. The ETOC was filled the day before surgery and in the short term follow-up. Sixteen suprathreshold odorants with a detection task and a forced choice verbal identification task were tested. The mean composite score (MCS) improved at 3 and 6 months. The preoperative MCS was correlated to the Lund-Mackay score and to the olfactory cleft opacification on preoperative computed tomography (CT) scan. Multivariate linear regression modelling of patients with preoperative anosmia showed that the olfactory recovery at 3 months was predicted by the preoperative Lund-Mackay score and the age, and at 6 months by the preoperative Lund-Mackay score. With a convenient psychophysical test, we showed that olfactory cleft opacification and CT scan score could be predictive factors of olfaction disorder severity and improvement after ESS in CRSwNP. These results need to be strengthened in the long term with a larger panel of patients.
  • 02/2015; 132(1). DOI:10.1016/j.aforl.2014.12.005
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    ABSTRACT: Chronic rhinosinusitis with nasal polyps (CRSwNP) is frequently associated with asthma. Mucosal eosinophil (EO) infiltrate has been found to correlate with asthma and disease severity but not necessarily in every patient. Other multifactorial immune processes are required to determine disease endotypes and response to treatment. To evaluate EO immunomodulation for migration and survival in accordance with inflammatory protein profiles and asthmatic status in CRSwNP. Ninety-three patients (47 with asthma) with CRSwNP were included. Each patient was staged clinically according to symptom severity and polyp size. Nasal secretions were collected to establish a cytokine profile. The EOs were purified from blood samples and nasal polyps to delineate specific immunophenotypes by flow cytometry and determine in vitro EO survival in relation to asthmatic status. The CRSwNP in patients with asthma was characterized by eosinophilia and a high level of interleukin (IL)-5 in nasal secretions. Although EOs exhibited activation profiles after mucosal migration, there was relative down-expression of IL-5 receptor-α (IL-5Rα) on nasal EOs in patients with asthma. The EO culture with IL-5 and IL-9 showed an antiapoptotic effect in patients with asthma through IL-5Rα modulation. Mucosal eosinophilia seems to be induced by EO nasal trapping through modulation of adhesion receptors. In patients with asthma, EO involvement is enhanced by the antiapoptotic synergistic action of T-helper cell type 2 cytokines on IL-5Rα expression. This study shows for the first time that IL-9 is involved in EO homeostasis in CRSwNP and could explain the low benefit of anti-IL-5 therapy for some patients with asthma and nasal polyposis. Copyright © 2015 American College of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.
    Annals of allergy, asthma & immunology: official publication of the American College of Allergy, Asthma, & Immunology 02/2015; DOI:10.1016/j.anai.2015.01.012 · 2.75 Impact Factor
  • European Annals of Otorhinolaryngology, Head and Neck Diseases 02/2015; 132(1):1-2. DOI:10.1016/j.anorl.2014.11.002
  • 11/2014; DOI:10.1016/j.aforl.2014.02.003
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    ABSTRACT: Objective The study was designed to assess the prevalence, management and survival of patients with simultaneous squamous cell carcinomas of the oral cavity and hypopharynx (OC/HP). Material and methods A multicenter, retrospective study (2 university hospitals) was conducted between 2003 and 2007 on a series of 96 patients with simultaneous squamous cell cancers of the OC/HP. Results A total of 88 men and 8 women were included in the study: 81 patients presented double sites, 14 presented triple sites and one presented quadruple sites. The tumour sites most frequently observed were: hypopharynx in 61% of cases (involving the pyriform sinus in 42% of cases) and the oropharynx in 59% of cases (involving the palatine tonsil in 30% of cases). Upper aerodigestive tract endoscopy under general anaesthesia revealed a simultaneous lesion not suspected on clinical examination in 45% of patients: the site discovered on endoscopy was hypopharyngeal in 2 out of 3 cases; the tumour was classified T1 or T2 in 95.5% of cases. Patients treated simultaneously for all sites had a better prognosis than patients in whom each tumour was treated separately. The 5-year specific survival was 34% and the 5-year overall survival was 28%. Conclusion The prevalence of simultaneous squamous cell carcinomas of the oral cavity and hypopharynx ranges between 1 to 7.4% in the literature and was 4.6% in the present series. A common treatment strategy for each of the patient's tumours appears to be superior to the current theoretical approach that consists of considering each tumour separately.
    European Annals of Otorhinolaryngology, Head and Neck Diseases 10/2014; DOI:10.1016/j.anorl.2013.10.003
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    ABSTRACT: We present herein the proposal of the European Laryngological Society working committee on nomenclature for a systematic classification of open partial horizontal laryngectomies (OPHL). This is based on the cranio-caudal extent of laryngeal structures resected, instead of a number of different and heterogeneous variables present in existing nomenclatures, usually referring to eponyms, types of pexy, or inferior limit of resection. According to the proposed classification system, we have defined three types of OPHLs: Type I (formerly defined horizontal supraglottic laryngectomy), Type II (previously called supracricoid laryngectomy), and Type III (also named supratracheal laryngectomy). Use of suffixes "a" and "b" in Type II and III OPHLs reflects sparing or not of the suprahyoid epiglottis. Various extensions to one arytenoid, base of tongue, piriform sinus, and crico-arytenoid unit are indicated by abbreviations (ARY, BOT, PIR, and CAU, respectively). Our proposal is not intended to give a comprehensive algorithm of application of different OPHLs to specific clinical situations, but to serve as the basis for obtaining a common language among the head and neck surgical community. We therefore intend to present this classification system as a simple and intuitive teaching instrument, and a tool to be able to compare surgical series with each other and with non-surgical data.
    Archives of Oto-Rhino-Laryngology 04/2014; 271(9). DOI:10.1007/s00405-014-3024-4 · 1.61 Impact Factor
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    ABSTRACT: It is accepted that the follow-up of patients who had treatment for laryngeal cancer is a fundamental part of their care. The reasons of post-treatment follow-up include evaluation of treatment response, early identification of recurrence, early detection of new primary tumours, monitoring and management of complications, optimisation of rehabilitation, promotion smoking and excessive alcohol cessation, provision of support to patients and their families, patient counselling and education. Controversies exist in how these aims are achieved. Increasing efforts are being made to rationalise the structure and timing of head and neck cancer follow-up clinics. The aim of this document is to analyse the current evidence for the need to follow up patients who have been treated for LC and provide an up to date, evidence-based statement which is meaningful and applicable to all European Health Care Systems. A working group of the Head and Neck Cancer Committee of the ELS was constituted in 2009. A review of the current published literature on the management and follow-up of laryngeal cancer was undertaken and statements are made based on critical appraisal of the literature and best current evidence. Category recommendations were based on the Oxford Centre for Evidence-Based Medicine. Statements include: length, frequency, setting, type of health professional, clinical assessment, screening investigations, patient's education, second primary tumours, and mode of treatment considerations including radiotherapy, chemo-radiation therapy, transoral surgery and open surgery. It also addresses specific recommendations regarding patients with persistent pain, new imaging techniques, tumour markers and narrow band imaging.
    Archives of Oto-Rhino-Laryngology 03/2014; 271(9). DOI:10.1007/s00405-014-2966-x · 1.61 Impact Factor
  • Revue des Maladies Respiratoires 01/2014; 31:A110-A111. DOI:10.1016/j.rmr.2013.10.388 · 0.49 Impact Factor
  • G Mortuaire, O Boute, P Y Hatron, D Chevalier
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    ABSTRACT: To assess the safety and efficacy of submucosal radiofrequency (RF) treatment for hereditary hemorrhagic telangiectasia (HHT) with mild or moderate epistaxis. We carried out a prospective pilot study of 16 consecutive patients with HHT-related epistaxis from June 2010 to April 2012. Under local anesthesia, RF was applied to one or both sides of the nose from the columella beneath the septal mucosal (50 joules per puncture). Patients were sent a questionnaire at least six months after the procedure. RF under local anesthesia was well tolerated, according to visual analog scale scores. Neither crusting nor pain was reported one week after the intervention. The frequency of epistaxis per day and per month was significantly lower after RF. The duration of bleeding also decreased from more than 10 minutes to less than 5 minutes in two thirds of patients. Thirteen of the 16 patients were satisfied with the technique and would request it for subsequent procedures to treat repeated bleeding. Submucosal RF treatment for HHT is a safe, well tolerated procedure with significant efficacy in the short term. It should be considered as an alternative technique for managing HHT-related epistaxis, although long-term results remain to be evaluated.
    Rhinology 12/2013; 51(4):355-360. DOI:10.4193/Rhin13.027 · 2.78 Impact Factor
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    ABSTRACT: Head and Neck Squamous Cell Carcinoma (HNSCC) is the sixth most common cancer worldwide. The treatment of advanced stages HNSCC is based on surgical treatment combined with radiotherapy and chemotherapy or concomitant chemo-radiotherapy. However, the 5-year survival remains poor for advanced stages HNSCC and the development of new targeted therapies is eagerly awaited. F14512 combines an epipodophyllotoxin core-targeting topoisomerase II with a spermine moiety introduced as a cell delivery vector. This spermine moiety facilitates selective uptake by tumor cells via the Polyamine Transport System (PTS) and reinforces topoisomerase II poisoning. Here we report the evaluation of F14512 toward HNSCC. Four cell lines representative of head and neck cancer localizations were used: Fadu (pharynx), SQ20B (larynx), CAL33 and CAL27 (base of the tongue). PTS activity and specificity were evaluated by confocal microscopy and flow cytometry using the fluorescent probe F17073 which contains the same spermine moiety as F14512. Cytotoxicity, alone or in association with standard chemotherapeutic agents (cisplatin, 5FU), and radio-sensitizing effects were investigated using MTS and clonogenic assays, respectively. F14512 efficiency and PTS activity were also measured under hypoxic conditions (1% O2). In all 4 tested HNSCC lines, an active PTS was evidenced providing a specific and rapid transfer of spermine-coupled compounds into cell nuclei. Interestingly, F14512 presents a 1.6-11-fold higher cytotoxic effect than the reference compound etoposide (lacking the spermine chain). It appears also more cytotoxic than 5FU and cisplatin in all cell lines. Competition experiments with spermine confirmed the essential role of the PTS in the cell uptake and cytotoxicity of F14512. Hypoxia had almost no impact on the drug cytotoxicity. The combination of F14512 with cisplatin, but not 5FU, was found to be synergistic and, for the first time, we demonstrated the significant radio-sensitizing potential of F14512. The spermine moiety of F14512 confers a targeted effect and a much better efficacy than etoposide in HNSCC lines. The synergistic effect observed in association with cisplatin and radiotherapy augurs well for the potential development of F14512 in HNSCC.
    Oral Oncology 11/2013; DOI:10.1016/j.oraloncology.2013.11.003 · 3.03 Impact Factor
  • 10/2013; 130(4):A6. DOI:10.1016/j.aforl.2013.06.016
  • 10/2013; 130(4):A77. DOI:10.1016/j.aforl.2013.06.261
  • 10/2013; 130(4):A47. DOI:10.1016/j.aforl.2013.06.122
  • 10/2013; 130(4):A7. DOI:10.1016/j.aforl.2013.06.018
  • 10/2013; 130(4):A61. DOI:10.1016/j.aforl.2013.06.161
  • J.L. Lefebvre, D. Chevalier, A. Demaille
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    ABSTRACT: Los cánceres de las vías aerodigestivas superiores (VADS) son frecuentes l3,[23]: se estima que en el mundo aparecen aproximadamente 500 000 nuevos casos todos los años. La mayoría de estos cánceres (cavidad bucal, laringe, faringe) se dan en los países industrializados y se presentan esencialmente en el hombre adulto; en su génesis predominan ampliamente el alcoholismo y el tabaquismo crónicos, a pesar de que en la actualidad se conocen o se sospechan otros factores. Los demás cánceres (fosas nasales, cavidades sinusales y nasofaringe) son más raros, su predominio masculino es menos marcado, afectan también a los niños y no tienen relación con el alcohol o el tabaquismo. Su repartición es más difusa en el mundo, aunque los cánceres nasofaríngeos aparecen con preferencia en el sudeste asiático y en la región mediterránea. La gravedad de los cánceres de las VADS justifica la realización de encuestas epidemiológicas minuciosas para precisar por una parte, el conocimiento de la susceptibilidad individual a los agentes cancerígenos conocidos y, por la otra, investigar otros posibles factores, entre ellos los ambientales, con el fin de adaptar lo mejor posible las futuras campañas de información, de prevención y de detección.
    07/2013; 29(1):1–10. DOI:10.1016/S1632-3475(00)71980-1
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    ABSTRACT: BACKGROUND: Sinonasal cancers are rare and associated with a poor prognosis. The aim of this study was to report our experience and analyze the risk factors for oncologic failures. METHODS: A retrospective review of 156 consecutive patients treated with curative intent for sinonasal malignancy between 1995 and 2005 at tertiary cancer center was performed. Demographic, clinical, morphological and pathological parameters were correlated with oncologic outcomes. RESULTS: Complete response was obtained for 134 patients. Sixty-eight patients relapsed among which 51 had local recurrence. Nine of these 51 patients (17.6%) underwent successful salvage therapy. Five years local failure and overall survival rates were 50.0% and 61.1%. Maxillary sinus tumors, intracranial invasion and N>0 stage at initial diagnosis were significantly and independently associated with local failure and survival in multivariant analysis. CONCLUSION: Local control following initial treatment is primordial to optimizing outcomes due to the poor results of salvage therapy. Head Neck, 2013.
    Head & Neck 04/2013; DOI:10.1002/hed.23356 · 2.83 Impact Factor
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    ABSTRACT: Objectifs Ce travail présente les recommandations de la SFORL pour la recherche de métastases à distance et d’un second cancer synchrone lors du bilan initial des cancers épidermoïde des VADS. Matériels et méthodes Revue exhaustive de la littérature analysée par un groupe de travail multidisciplinaire. Résultats Le thorax constitue la localisation la plus fréquente des métastases à distance et des seconds cancers synchrones hors VADS. Le scanner thoracique est préconisé chez tous les patients en première intention (grade B). Une TEP-TDM au 18-FDG est préconisée en cas d’image thoracique douteuse ou de risque métastatique élevé pour la détection des métastases à distance non pulmonaires (grade B). Une exploration de l’œsophage est recommandée pour les patients à risque significatif de cancer synchrone de l’œsophage (tumeur de l’hypopharynx et de l’oropharynx, intoxication alcoolique chronique) (grade B). L’examen de référence est la fibroscopie digestive haute (grade B). Conclusions Ces recommandations de grade B permettent de rationnaliser la place des différents examens radiologiques et endoscopiques réalisés en première intention pour la recherche des métastases à distance et des seconds cancers synchrones. Cette rationalisation devrait permettre de limiter le nombre d’examens réalisés et ainsi réduire le temps nécessaire au bilan initial.
    04/2013; 130(2):112–117. DOI:10.1016/j.aforl.2012.10.007
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    ABSTRACT: Objectifs Les auteurs proposent d’exposer les recommandations de bonne pratique concernant le bilan d’extension locorégional des cancers épidermoïdes des voies aérodigestives supérieures (VADS) : cavum, fosses nasales et sinus exclus. Matériels et méthodes Lecture critique multidisciplinaire de la littérature concernant le bilan d’extension locorégional des cancers épidermoïdes des VADS selon les niveaux de preuve scientifique en accord avec le guide d’analyse de la littérature publié par l’HAS en janvier 2000. Conclusion À partir du niveau de preuve des articles sélectionnés et de façon collégiale au sein du groupe de travail, des recommandations ont été proposées et gradées concernant le bilan d’extension locorégional clinique, endoscopique et iconographique des cancers des VADS.
    02/2013; 130(1):40–46. DOI:10.1016/j.aforl.2012.11.005

Publication Stats

2k Citations
225.15 Total Impact Points

Institutions

  • 1994–2015
    • CHRU de Strasbourg
      Strasburg, Alsace, France
  • 2013
    • Centre Oscar Lambret
      Lille, Nord-Pas-de-Calais, France
  • 1989–2013
    • University of Lille Nord de France
      Lille, Nord-Pas-de-Calais, France
  • 2009–2010
    • Université de Mons
      • Faculty of Medicine and Pharmacy
      Mons, Walloon Region, Belgium
  • 2006–2009
    • Lille Catholic University
      Lille, Nord-Pas-de-Calais, France
  • 1991–2008
    • Centre Hospitalier Régional Universitaire de Lille
      Lille, Nord-Pas-de-Calais, France
  • 2003
    • CHU de Lyon - Hôpital de la Croix-Rousse
      Lyons, Rhône-Alpes, France