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D'Andréa G, Gal J, Mandine L, Dassonville O, Vandersteen C, Guevara N, Castillo L, Poissonnet G, Culié D, Elaldi R, Sarini J, Decotte A, Renaud C, Vergez S, Schiappa R, Chamorey E, Château Y, Bozec A. Application of machine learning methods to guide patient management by predicting the risk of malignancy of Bethesda III-V thyroid nodules. Eur J Endocrinol 2023; 188:7044677. [PMID: 36799885 DOI: 10.1093/ejendo/lvad017] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 01/27/2023] [Accepted: 01/30/2023] [Indexed: 02/18/2023]
Abstract
OBJECTIVE Indeterminate thyroid nodules (ITN) are common and often lead to (sometimes unnecessary) diagnostic surgery. We aimed to evaluate the performance of two machine learning methods (ML), based on routinely available features to predict the risk of malignancy (RM) of ITN. DESIGN Multi-centric diagnostic retrospective cohort study conducted between 2010 and 2020. METHODS Adult patients who underwent surgery for at least one Bethesda III-V thyroid nodule (TN) with fully available medical records were included. Of the 7917 records reviewed, eligibility criteria were met in 1288 patients with 1335 TN. Patients were divided into training (940 TN) and validation cohort (395 TN). The diagnostic performance of a multivariate logistic regression model (LR) and its nomogram, and a random forest model (RF) in predicting the nature and RM of a TN were evaluated. All available clinical, biological, ultrasound, and cytological data of the patients were collected and used to construct the two algorithms. RESULTS There were 253 (19%), 693 (52%), and 389 (29%) TN classified as Bethesda III, IV, and V, respectively, with an overall RM of 35%. Both cohorts were well-balanced for baseline characteristics. Both models were validated on the validation cohort, with performances in terms of specificity, sensitivity, positive predictive value, negative predictive value, and area under the receiver operating characteristic curve of 90%, 57.3%, 73.4%, 81.4%, 84% (CI95%: 78.5%-89.5%) for the LR model, and 87.6%, 54.7%, 68.1%, 80%, 82.6% (CI95%: 77.4%-87.9%) for the RF model, respectively. CONCLUSIONS Our ML models performed well in predicting the nature of Bethesda III-V TN. In addition, our freely available online nomogram helped to refine the RM, identifying low-risk TN that may benefit from surveillance in up to a third of ITN, and thus may reduce the number of unnecessary surgeries.
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Affiliation(s)
- Grégoire D'Andréa
- Otorhinolaryngology and Head and Neck Surgery Department, Institut Universitaire de la Face et du Cou, GHS Nice University Hospital-Antoine Lacassagne Centre, Côte d'Azur University, Nice 06103, France
| | - Jocelyn Gal
- Department of Statistics, Centre Antoine Lacassagne, Nice 06103, France
| | - Loïc Mandine
- Department of Statistics, Centre Antoine Lacassagne, Nice 06103, France
| | - Olivier Dassonville
- Otorhinolaryngology and Head and Neck Surgery Department, Institut Universitaire de la Face et du Cou, GHS Nice University Hospital-Antoine Lacassagne Centre, Côte d'Azur University, Nice 06103, France
| | - Clair Vandersteen
- Otorhinolaryngology and Head and Neck Surgery Department, Institut Universitaire de la Face et du Cou, GHS Nice University Hospital-Antoine Lacassagne Centre, Côte d'Azur University, Nice 06103, France
| | - Nicolas Guevara
- Otorhinolaryngology and Head and Neck Surgery Department, Institut Universitaire de la Face et du Cou, GHS Nice University Hospital-Antoine Lacassagne Centre, Côte d'Azur University, Nice 06103, France
| | - Laurent Castillo
- Otorhinolaryngology and Head and Neck Surgery Department, Institut Universitaire de la Face et du Cou, GHS Nice University Hospital-Antoine Lacassagne Centre, Côte d'Azur University, Nice 06103, France
| | - Gilles Poissonnet
- Otorhinolaryngology and Head and Neck Surgery Department, Institut Universitaire de la Face et du Cou, GHS Nice University Hospital-Antoine Lacassagne Centre, Côte d'Azur University, Nice 06103, France
| | - Dorian Culié
- Otorhinolaryngology and Head and Neck Surgery Department, Institut Universitaire de la Face et du Cou, GHS Nice University Hospital-Antoine Lacassagne Centre, Côte d'Azur University, Nice 06103, France
| | - Roxane Elaldi
- Otorhinolaryngology and Head and Neck Surgery Department, Institut Universitaire de la Face et du Cou, GHS Nice University Hospital-Antoine Lacassagne Centre, Côte d'Azur University, Nice 06103, France
| | - Jérôme Sarini
- Otorhinolaryngology and Head and Neck Surgery Department, University Cancer Institute of Toulouse-Oncopole, Toulouse 31400, France
| | - Anne Decotte
- Otorhinolaryngology and Head and Neck Surgery Department, Toulouse University Hospital, Hôpital Larrey, Toulouse 31400, France
| | - Claire Renaud
- Thoracic Surgery Department, Toulouse University Hospital, Hôpital Larrey, Toulouse 31400, France
| | - Sébastien Vergez
- Otorhinolaryngology and Head and Neck Surgery Department, University Cancer Institute of Toulouse-Oncopole, Toulouse 31400, France
- Otorhinolaryngology and Head and Neck Surgery Department, Toulouse University Hospital, Hôpital Larrey, Toulouse 31400, France
| | - Renaud Schiappa
- Department of Statistics, Centre Antoine Lacassagne, Nice 06103, France
| | - Emmanuel Chamorey
- Department of Statistics, Centre Antoine Lacassagne, Nice 06103, France
| | - Yann Château
- Department of Statistics, Centre Antoine Lacassagne, Nice 06103, France
| | - Alexandre Bozec
- Otorhinolaryngology and Head and Neck Surgery Department, Institut Universitaire de la Face et du Cou, GHS Nice University Hospital-Antoine Lacassagne Centre, Côte d'Azur University, Nice 06103, France
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2
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Vergé R, Rouch A, Renaud C, Mazzoni L, Cazaux M, Rabinel P, Brouchet L. EP02.03-021 Uncertain Resection for Localized cN0M0 Non Small Cell-Lung Cancer: The Crucial Prognosis of Suboptimal Lymph Node Assessment. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Vergé R, Rouch A, Renaud C, Mazzoni L, Cazaux M, Rabinel P, Brouchet L. 88P Uncertain resection for localized cN0M0 non-small cell lung cancer: The crucial prognosis of suboptimal lymph node assessment. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.02.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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4
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Renaud C, Kulama E. Optimisation of paediatric chest x-rays in the intensive care unit (ITU): a local study. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00533-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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5
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Antos N, Brueck N, Renaud C, Miller T, Wunschel K. 148: Sustainably implementing impactful pre-visit planning using the electronic health record. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01573-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Colombat M, Barres B, Renaud C, Ribes D, Pericard S, Camus M, Anesia R, van Acker N, Chauveau D, Burlet-Schiltz O, Brousset P, Valleix S. Mass spectrometry-based proteomic analysis of parathyroid adenomas reveals PTH as a new human hormone-derived amyloid fibril protein. Amyloid 2021; 28:153-157. [PMID: 33583309 DOI: 10.1080/13506129.2021.1885023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND Congo red-positive material was described in normal and diseased parathyroids (adenoma and hyperplasia) 50 years ago. However, the incidence and the clinical significance of such observation are unknown, and the causal fibril protein has never been convincingly demonstrated. METHODS We conducted the present study including an exceptional case report accompanied with a retrospective study of 105 parathyroid adenomas. We used histopathological, immunohistochemical, ultrastructural, mass spectrometry-based proteomic analysis of parathyroid adenoma tissue samples, and genetic analysis. RESULTS We describe a 57-year-old man with mild hypercalcemia and elevated parathyroid hormone (PTH) level for whom histopathological analysis revealed a parathyroid adenoma associated with nodular typical amyloid deposits. Tandem mass spectrometry after laser microdissection (LMD-MS) of amyloid adenoma identified PTH as the fibril protein, and no germline mutation in the PTH gene was detected. Congo red-positive PTH-deposits were further observed in 6.6% of the parathyroid adenomas analyzed, and were associated with complete/incomplete or absent universal amyloid signature, but with fibrillar morphology at ultrastructural level. CONCLUSIONS Inappropriate PTH production leads to progressive disease-amyloid aggregation of PTH in a subset of parathyroid adenomas, providing new insights into the pathophysiology of this condition and adding PTH to the list of amyloid protein derived from hormones.
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Affiliation(s)
- Magali Colombat
- Département d'Anatomie Pathologique, Institut Universitaire du Cancer, CHU Toulouse, Toulouse, France
| | - Béatrice Barres
- Département d'Anatomie Pathologique, Institut Universitaire du Cancer, CHU Toulouse, Toulouse, France
| | - Claire Renaud
- Service de Chirurgie Thoracique, Hôpital Larrey, CHU Toulouse, Toulouse, France
| | - David Ribes
- Département de Néphrologie, Dialyse et Transplantation, Centre de Référence des Maladies Rénales Rares, CHU Toulouse, Toulouse, France
| | - Sarah Pericard
- Département d'Anatomie Pathologique, Institut Universitaire du Cancer, CHU Toulouse, Toulouse, France
| | - Mylène Camus
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Paul Sabatier, Toulouse, France
| | - Rodica Anesia
- Département d'Anatomie Pathologique, Institut Universitaire du Cancer, CHU Toulouse, Toulouse, France
| | - Nathalie van Acker
- Département d'Anatomie Pathologique, Institut Universitaire du Cancer, CHU Toulouse, Toulouse, France
| | - Dominique Chauveau
- Département de Néphrologie, Dialyse et Transplantation, Centre de Référence des Maladies Rénales Rares, CHU Toulouse, Toulouse, France
| | - Odile Burlet-Schiltz
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Paul Sabatier, Toulouse, France
| | - Pierre Brousset
- Département d'Anatomie Pathologique, Institut Universitaire du Cancer, CHU Toulouse, Toulouse, France.,Labex Toucan, Toulouse, France
| | - Sophie Valleix
- Laboratoire de Génétique Moléculaire, Fédération de Génétique, Hôpital Necker-Enfants Malades, APHP.CUP, Université de Paris, Paris, France
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Ng S, Lim E, Liu A, Tan K, Renaud C. POS-805 TOWARDS BETTER AND EARLIER RECOGNITION OF DIABETIC MUSCLE INFARCTION AS A CAUSE OF PAINFUL LIMB SWELLING IN DIABETIC ESRD. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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8
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Kornitzer GA, Rosenstein M, Groleau V, Jantchou P, Touzot F, Godin D, Renaud C, Ovetchkine P, Deslandres C. A247 VIRAL LOAD OF EPSTEIN-BARR VIRUS IN PEDIATRIC PATIENTS WITH NEW ONSET IBD AT DIAGNOSIS AND ON FOLLOW UP: AN OBSERVATIONAL STUDY. J Can Assoc Gastroenterol 2020. [DOI: 10.1093/jcag/gwz047.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Patients with Inflammatory Bowel Disease are at increased risk for complications associated with Epstein-Barr Virus, such as uncontrolled infection, colitis mimicking IBD, and lymphoproliferative disease. These complications may be due to inherent immune dysfunction or effects of immunomodulating therapies used. We have previously identified that the seroprevalence of EBV in our cohort of IBD patients at time of diagnosis was 44.2%, with prevalence stratified by age as follows: 0 to <10 years 36%, 10 to <17 years 46%, and 17 + years 50%.
Aims
Our objective is to assess the risk of EBV reactivation in this population, to determine whether patients treated with immunomodulators should be more closely monitored for EBV viral load.
Methods
Retrospective chart review was done for all patients with new-onset IBD diagnosed at CHU Sainte-Justine over a two-year period, from Jan. 2016 to Dec. 2017. Serum from time of diagnosis was retrieved from the microbiology laboratory for patients with positive EBV serology, and quantitative PCR was performed to assess viral load at diagnosis. 47 of 53 seropositive patients had available serum at time of retrieval. EBV PCR was subsequently performed on serum drawn one to two years after start of immunosuppressants.
Results
53 patients were EBV positive at time of diagnosis (EBNA/VCA IgG). Two patients were IgM positive, suggesting recent or active infection. The viral load as measured by quantitative PCR on serum drawn at diagnosis was negative in all retroactively tested patients. Of the two IgM-positive patients, one had known positive quantitative PCR at time of diagnosis. PCR previously tested in clinical follow-up of two seropositive, PCR-negative patients became positive at 7 and 17 months from diagnosis, suggesting viral reactivation. Both patients had received anti-TNF’s and systemic corticosteroids. Viral loads on follow-up are to be assessed for the rest of the cohort. Overall, therapies started within 6 months of diagnosis were similar in the seropositive and seronegative groups, the majority receiving some form of immunosuppression. Within the seropositive group: 66% received corticosteroids, 32.1% Infliximab, 5.7% Adalimumab, and 5.7% Azathioprine.
Conclusions
Only one patient had active EBV infection with positive PCR at time of diagnosis. All other patients had no sign of active infection based on retroactive PCR’s. While a majority of patients, regardless of EBV serology, receive immunomodulating agents, we currently do not routinely screen for seroconversion in seronegative patients, or for viral load in seropositive patients. We will be assessing viral loads after start of immunomodulation to better understand the potential impact of these agents on disease progression.
Funding Agencies
None
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Affiliation(s)
- G A Kornitzer
- Department of Gastroenterology, CHU Sainte-Justine, Montréal, QC, Canada
| | - M Rosenstein
- Department of Pediatrics, CHU Sainte-Justine, Montreal, QC, Canada
| | - V Groleau
- Department of Gastroenterology, CHU Sainte-Justine, Montréal, QC, Canada
| | - P Jantchou
- Department of Gastroenterology, CHU Sainte-Justine, Montréal, QC, Canada
| | - F Touzot
- Department of Immunology, CHU Sainte-Justine, Montreal, QC, Canada
| | - D Godin
- Department of Gastroenterology, CHU Sainte-Justine, Montréal, QC, Canada
| | - C Renaud
- Department of Infectious Diseases, CHU Sainte-Justine, Montreal, QC, Canada
| | - P Ovetchkine
- Department of Infectious Diseases, CHU Sainte-Justine, Montreal, QC, Canada
| | - C Deslandres
- Department of Gastroenterology, CHU Sainte-Justine, Montréal, QC, Canada
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9
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Renaud C, Leong C, Ooi D, Nyein C. SAT-055 PREDICTABILITY AND ACCURACY OF IMMEDIATE SONOGRAPHIC POST-OPERATIVE BLOOD FLOW AND VEIN CALIBRE ON DETERMINING PRIMARY AUTOGENOUS RADIO-CEPHALIC FISTULA SHORT AND LONGTERM OUTCOMES. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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10
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Kornitzer GA, Rosenstein M, Groleau V, Touzot F, Godin D, Renaud C, Jantchou P, Ovetchkine P, Deslandres C. A106 SEROPREVALENCE OF EPSTEIN-BARR VIRUS AND ASSOCIATION WITH DISEASE CHARACTERISTICS IN PEDIATRIC PATIENTS WITH NEW ONSET IBD. J Can Assoc Gastroenterol 2019. [DOI: 10.1093/jcag/gwz006.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- G A Kornitzer
- Department of Gastroenterology, CHU Sainte-Justine, Montreal, QC, Canada
| | - M Rosenstein
- Pediatrics , University of Montreal , Montreal, QC, Canada
| | - V Groleau
- Department of Gastroenterology, CHU Sainte-Justine, Montreal, QC, Canada
| | - F Touzot
- Department of Immunology, CHU Sainte-Justine, Montreal, QC, Canada
| | - D Godin
- Department of Gastroenterology, CHU Sainte-Justine, Montreal, QC, Canada
| | - C Renaud
- Department of Infectious Diseases, CHU Sainte-Justine, Montreal, QC, Canada
| | - P Jantchou
- Department of Gastroenterology, CHU Sainte-Justine, Montreal, QC, Canada
| | - P Ovetchkine
- Department of Infectious Diseases, CHU Sainte-Justine, Montreal, QC, Canada
| | - C Deslandres
- Department of Gastroenterology, CHU Sainte-Justine, Montreal, QC, Canada
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11
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Vaysse C, Philippe C, Martineau Y, Quelen C, Hieblot C, Renaud C, Nicaise Y, Desquesnes A, Pannese M, Filleron T, Escourrou G, Lawson M, Rintoul RC, Delisle MB, Pyronnet S, Brousset P, Prats H, Touriol C. Key contribution of eIF4H-mediated translational control in tumor promotion. Oncotarget 2016; 6:39924-40. [PMID: 26498689 PMCID: PMC4741870 DOI: 10.18632/oncotarget.5442] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 10/03/2015] [Indexed: 02/06/2023] Open
Abstract
Dysregulated expression of translation initiation factors has been associated with carcinogenesis, but underlying mechanisms remains to be fully understood. Here we show that eIF4H (eukaryotic translation initiation factor 4H), an activator of the RNA helicase eIF4A, is overexpressed in lung carcinomas and predictive of response to chemotherapy. In lung cancer cells, depletion of eIF4H enhances sensitization to chemotherapy, decreases cell migration and inhibits tumor growth in vivo, in association with reduced translation of mRNA encoding cell-proliferation (c-Myc, cyclin D1) angiogenic (FGF-2) and anti-apoptotic factors (CIAP-1, BCL-xL). Conversely, each isoform of eIF4H acts as an oncogene in NIH3T3 cells by stimulating transformation, invasion, tumor growth and resistance to drug-induced apoptosis together with increased translation of IRES-containing or structured 5′UTR mRNAs. These results demonstrate that eIF4H plays a crucial role in translational control and can promote cellular transformation by preferentially regulating the translation of potent growth and survival factor mRNAs, indicating that eIF4H is a promising new molecular target for cancer therapy.
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Affiliation(s)
- Charlotte Vaysse
- INSERM U1037, CRCT, Cancer Research Center of Toulouse, Toulouse, France.,Toulouse University, Paul Sabatier, Toulouse, France
| | - Céline Philippe
- INSERM U1037, CRCT, Cancer Research Center of Toulouse, Toulouse, France.,Toulouse University, Paul Sabatier, Toulouse, France
| | - Yvan Martineau
- INSERM U1037, CRCT, Cancer Research Center of Toulouse, Toulouse, France.,Toulouse University, Paul Sabatier, Toulouse, France
| | - Cathy Quelen
- INSERM U1037, CRCT, Cancer Research Center of Toulouse, Toulouse, France.,Toulouse University, Paul Sabatier, Toulouse, France
| | - Corinne Hieblot
- INSERM U1037, CRCT, Cancer Research Center of Toulouse, Toulouse, France.,Toulouse University, Paul Sabatier, Toulouse, France
| | - Claire Renaud
- Department of Thoracic Surgery, Rangueil-Larrey Hospital, Toulouse, France
| | - Yvan Nicaise
- Department of Pathology, CHU Rangueil, Toulouse, France
| | | | | | - Thomas Filleron
- Clinical Trial Office, Cellule Biostatistique Institut Universitaire du Cancer Toulouse, Toulouse, France
| | - Ghislaine Escourrou
- INSERM U1037, CRCT, Cancer Research Center of Toulouse, Toulouse, France.,Department of Pathology, CHU Rangueil, Toulouse, France
| | - Malcolm Lawson
- Department of Respiratory Medicine, Broomfield Hospital, Chelmsford, Essex, UK
| | - Robert C Rintoul
- Department of Thoracic Oncology, Papworth Hospital, Cambridge, UK
| | - Marie Bernadette Delisle
- INSERM U1037, CRCT, Cancer Research Center of Toulouse, Toulouse, France.,Department of Pathology, CHU Rangueil, Toulouse, France
| | - Stéphane Pyronnet
- INSERM U1037, CRCT, Cancer Research Center of Toulouse, Toulouse, France.,Toulouse University, Paul Sabatier, Toulouse, France
| | - Pierre Brousset
- INSERM U1037, CRCT, Cancer Research Center of Toulouse, Toulouse, France.,Toulouse University, Paul Sabatier, Toulouse, France.,Department of Pathology, Institut Universitaire du Cancer, Toulouse, France
| | - Hervé Prats
- INSERM U1037, CRCT, Cancer Research Center of Toulouse, Toulouse, France.,Toulouse University, Paul Sabatier, Toulouse, France
| | - Christian Touriol
- INSERM U1037, CRCT, Cancer Research Center of Toulouse, Toulouse, France.,Toulouse University, Paul Sabatier, Toulouse, France
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12
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Grégoire M, Leroy AG, Bouquié R, Malandain D, Dailly E, Boutoille D, Renaud C, Jolliet P, Caillon J, Deslandes G. Simultaneous determination of ceftaroline, daptomycin, linezolid and rifampicin concentrations in human plasma by on-line solid phase extraction coupled to high-performance liquid chromatography-tandem mass spectrometry. J Pharm Biomed Anal 2016; 118:17-26. [PMID: 26512995 DOI: 10.1016/j.jpba.2015.10.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 09/30/2015] [Accepted: 10/06/2015] [Indexed: 10/22/2022]
Abstract
Methicillin-resistant Staphylococcus aureus infection is a serious clinical problem worldwide. Ceftaroline, daptomycin, linezolid in combination with rifampicin are particularly used in this indication. To allow monitoring of these antibiotics, an on-line solid phase extraction coupled to high-performance liquid chromatography-tandem mass spectrometry assay requiring a 100 μL aliquot of human plasma has been developed. Besides, significance of 25-O-desacetylrifampicin concentrations was evaluated. Sample pre-treatment is limited to protein precipitation with methanol. After centrifugation 10 μL of supernatant are injected into the chromatographic system, which consists of an on-line solid phase extraction followed by a separation on a phenyl-hexyl column and detected by a tandem mass spectrometer. Plasma drug concentrations were determined by multiple reaction monitoring in positive ion mode, and assay performance was evaluated. 25-O-Desacetylrifampicin activity, was compared to rifampicin using a microbiological method. Sample preparation using methanol precipitation followed by solid-phase extraction yielded good recovery and ionization efficiency, with chromatographic separation achieved within 3 min per sample. Within-run and between-run precisions ranged respectively from 1.22% to 9.35% and from 1.61% to 9.36%. Lower limits of quantification were 0.04 mg/L for linezolid, 0.1mg/L for rifampicin, 0.2mg/L for ceftaroline and 0.5mg/L for daptomycin. It appears that 25-O-desacetylrifampicin displays a substantial intrinsic bactericidal activity against S. aureus. This assay provides simple, rapid, sensitive and accurate quantification of the four antibiotic drugs and one metabolite and can be routinely used to monitor drug concentration in methicillin-resistant S. aureus infected patients.
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Affiliation(s)
- M Grégoire
- Clinical Pharmacology Department, University Hospital of Nantes, Nantes, France; EA 3826Clinical and Experimental Therapy of Infectious Diseases, University of Nantes, France.
| | - A G Leroy
- Bacteriology Department, University Hospital of Nantes, Nantes, France
| | - R Bouquié
- Clinical Pharmacology Department, University Hospital of Nantes, Nantes, France; EA 4275 Biostatistics, Subjective Measures and Clinical Research in Health, University of Nantes, France
| | - D Malandain
- Bacteriology Department, University Hospital of Nantes, Nantes, France
| | - E Dailly
- Clinical Pharmacology Department, University Hospital of Nantes, Nantes, France; EA 3826Clinical and Experimental Therapy of Infectious Diseases, University of Nantes, France
| | - D Boutoille
- EA 3826Clinical and Experimental Therapy of Infectious Diseases, University of Nantes, France; Infectious Diseases Department, University Hospital of Nantes, Nantes, France
| | - C Renaud
- Clinical Pharmacology Department, University Hospital of Nantes, Nantes, France
| | - P Jolliet
- Clinical Pharmacology Department, University Hospital of Nantes, Nantes, France; EA 4275 Biostatistics, Subjective Measures and Clinical Research in Health, University of Nantes, France
| | - J Caillon
- EA 3826Clinical and Experimental Therapy of Infectious Diseases, University of Nantes, France; Bacteriology Department, University Hospital of Nantes, Nantes, France
| | - G Deslandes
- Clinical Pharmacology Department, University Hospital of Nantes, Nantes, France
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13
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Renaud C. Treatment of vertebral compression fractures with the cranio-caudal expandable implant SpineJack®: Technical note and outcomes in 77 consecutive patients. Orthop Traumatol Surg Res 2015; 101:857-9. [PMID: 26521157 DOI: 10.1016/j.otsr.2015.08.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 08/05/2015] [Accepted: 08/25/2015] [Indexed: 02/02/2023]
Abstract
UNLABELLED In vertebral compression fractures, the potential of kyphoplasty for restoring vertebral height is limited by the loss of restored height that occurs when the balloon is deflated and removed. SpineJack(®) is also inserted percutaneously but is then left within the vertebral body after its expansion to reduce the fracture, thus avoiding loss of correction before the injection of cement. SpineJack(®) was used in 77 patients to treat 83 recent VCFs (55.4% at L1-L2) due to trauma (59.7%) or osteoporosis (40.3%). Three (3.9%) complications were recorded, but none was related to SpineJack(®): there was one case each of symptomatic cement leakage along a secondary pedicular fracture line; infection; and incipient device migration at the beginning of the learning curve. The rate of adjacent fractures was only 2.6%. The 5-year outcomes demonstrate that SpineJack(®) provides both immediate and long-term benefits in terms of pain relief, functional recovery, and maintenance of vertebral height restoration. LEVEL OF EVIDENCE IV, retrospective study.
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Affiliation(s)
- C Renaud
- Clinique Toulouse Lautrec, 2, rue Jacques-Monod, 81000 Albi, France.
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Grison-Hernando H, Renaud C, Deslandes G, Pineau A, Dailly E, Bouquie R, Azoulay-Fauconnier C, Jolliet P, Monteil-Ganiere C. Dosage simultané de 15 produits stupéfiants dans les cheveux par LC-MS/MS avec extraction en ligne. Toxicologie Analytique et Clinique 2015. [DOI: 10.1016/j.toxac.2015.03.082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lefebvre C, Renaud C, Chartrand C, Sainte-Justine CHU. 15: Time to Positivity of Blood Cultures in Infants 0 to 90 Days Old: Is 36 Hours Enough? Paediatr Child Health 2015. [DOI: 10.1093/pch/20.5.e36] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Moeglin J, Vaillant W, Capuani C, Arista S, Salignon K, Renaud C, Prevot G, Adoue D, Degraeve F. [Pleural effusion in a woman affected by lymphocytic lymphoma]. Presse Med 2015; 44:375-80. [PMID: 25682491 DOI: 10.1016/j.lpm.2014.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 07/05/2014] [Accepted: 08/25/2014] [Indexed: 10/24/2022] Open
Affiliation(s)
- Julia Moeglin
- CHG d'Auch, service de médecine interne, 32000 Auch, France; CHU de Toulouse, hôpital Rangueil, service d'anatomopathologie, 31059 Toulouse cedex, France.
| | - Willy Vaillant
- CHG d'Auch, service de médecine interne, 32000 Auch, France
| | - Caroline Capuani
- CHU de Toulouse, hôpital Rangueil, service d'anatomopathologie, 31059 Toulouse cedex, France
| | - Sophie Arista
- CHG d'Auch, service de médecine interne, 32000 Auch, France
| | | | - Claire Renaud
- CHU Larrey, service de pneumologie, 31400 Toulouse, France
| | | | - Daniel Adoue
- IUC de Toulouse, service de médecine interne, 31059 Toulouse, France
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Grégoire M, Deslandes G, Renaud C, Bouquié R, Allavena C, Raffi F, Jolliet P, Dailly E. A liquid chromatography-tandem mass spectrometry assay for quantification of rilpivirine and dolutegravir in human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 971:1-9. [PMID: 25261833 DOI: 10.1016/j.jchromb.2014.09.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 08/27/2014] [Accepted: 09/07/2014] [Indexed: 11/19/2022]
Abstract
A liquid chromatography-tandem mass spectrometry assay requiring a 100μL aliquot of human plasma for simultaneous determination of rilpivirine, a second generation non-nucleoside reverse transcriptase inhibitors of HIV and dolutegravir, a novel integrase stand transfer inhibitors of HIV concentrations has been developed. Sample pre-treatment is limited to protein precipitation with a mixture of methanol and zinc sulfate. After centrifugation the supernatant is injected in the chromatographic system, which consists of on-line solid phase extraction followed by separation on a phenyl-hexyl column. This 2.5min method, with its simple sample preparation provides sensitive (the limit of quantitation is 25ng/mL for each compound), accurate and precise (the intra-day and inter-day imprecision and inaccuracy are lower than 15%) quantification of the plasma concentration of these drugs and can be used for therapeutic drug monitoring in patients infected with HIV.
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Affiliation(s)
- M Grégoire
- Clinical Pharmacology Department, CHU de Nantes, Nantes, France
| | - G Deslandes
- Clinical Pharmacology Department, CHU de Nantes, Nantes, France
| | - C Renaud
- Clinical Pharmacology Department, CHU de Nantes, Nantes, France
| | - R Bouquié
- Clinical Pharmacology Department, CHU de Nantes, Nantes, France; EA 4275 Biostatistique, Recherche Clinique et Mesures Subjectives en Santé, Faculté de Médecine-Pharmacie, Université de Nantes, France
| | - C Allavena
- Infectious Diseases Department, CHU de Nantes, Nantes, France
| | - F Raffi
- Infectious Diseases Department, CHU de Nantes, Nantes, France
| | - P Jolliet
- Clinical Pharmacology Department, CHU de Nantes, Nantes, France; EA 4275 Biostatistique, Recherche Clinique et Mesures Subjectives en Santé, Faculté de Médecine-Pharmacie, Université de Nantes, France
| | - E Dailly
- Clinical Pharmacology Department, CHU de Nantes, Nantes, France; EA 3826 Thérapeutiques Cliniques et Expérimentales des Infections, Faculté de Médecine-Pharmacie, Université de Nantes, France.
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Grégoire M, Bretonniere C, Deslandes G, Monteil-Ganiere C, Bouquié R, Dailly E, Renaud C, Azoulay C, Pineau A, Grison-Hernando H, Jolliet P. P25: L’acidose lactique précoce lors de l’intoxication massive au paracétamol : un trouble métabolique parfois méconnu. Toxicologie Analytique et Clinique 2014. [DOI: 10.1016/s2352-0078(14)70086-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Darteyre S, Renaud C, Vuillerot C, Presles E, Kossorotoff M, Dinomais M, Lazaro L, Gautheron V, Chabrier S. Quality of life and functional outcome in early school-aged children after neonatal stroke: a prospective cohort study. Eur J Paediatr Neurol 2014; 18:347-53. [PMID: 24503061 DOI: 10.1016/j.ejpn.2014.01.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 01/09/2014] [Accepted: 01/19/2014] [Indexed: 10/25/2022]
Abstract
BACKGROUND Quality of life (QoL) is recognized internationally as an efficient tool for evaluating health interventions. To our knowledge, QoL has not been specifically assessed in children after neonatal arterial ischemic stroke (AIS). AIM To study the QoL of early school-aged children who suffered from neonatal AIS, and QoL correlation to functional outcome. METHOD We conducted a multicenter prospective cohort study as part of a larger study in full-term newborns with symptomatic AIS. Participating families were sent anonymous QoL questionnaires (QUALIN). Functional outcome was measured using the Wee-FIM scale. Healthy controls in the same age range were recruited in public schools. Their primary caregivers filled in the QUALIN questionnaires anonymously. We used Student's t-test and a rank test to compare patients and controls' QoL and functional outcomes. RESULTS 84 children with neonatal AIS were included. The control group was composed of 74 children, of which ten were later excluded due to chronic conditions. Mean ages and QUALIN median scores did not differ between patients and controls. Median Wee-FIM scores were lower in hemiplegic children than in non-hemiplegic ones (p < 0.001). QoL scores did not seem correlated to functional outcome. INTERPRETATION Those results could support the presence of a "disability paradox" in young children following neonatal AIS.
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Affiliation(s)
- S Darteyre
- CHU Saint-Etienne, Médecine physique et réadaptation pédiatrique, F-42055 Saint-Etienne, France; Université de Saint-Etienne, Groupe de recherche sur la thrombose EA3065, Saint-Etienne F-42023, France.
| | - C Renaud
- Inserm, CIC1408, F-42055 Saint-Etienne, France
| | - C Vuillerot
- CHU Lyon, l'Escale, Médecine physique et réadaptation pédiatrique, F-69677 Bron, France
| | - E Presles
- Université de Saint-Etienne, Groupe de recherche sur la thrombose EA3065, Saint-Etienne F-42023, France; Inserm, CIC1408, F-42055 Saint-Etienne, France
| | - M Kossorotoff
- APHP, Hôpital Necker-Enfants malades, Service de neuropédiatrie et maladies métaboliques, F-75015 Paris, France
| | - M Dinomais
- LUNAM, Université d'Angers, CHU Angers, Département de médecine physique et réadaptation, F-49933, France
| | - L Lazaro
- CH Côte-Basque, Service de pédiatrie, Bayonne F-64109, France
| | - V Gautheron
- CHU Saint-Etienne, Médecine physique et réadaptation pédiatrique, F-42055 Saint-Etienne, France
| | - S Chabrier
- CHU Saint-Etienne, Médecine physique et réadaptation pédiatrique, F-42055 Saint-Etienne, France; Université de Saint-Etienne, Groupe de recherche sur la thrombose EA3065, Saint-Etienne F-42023, France; Inserm, CIC1408, F-42055 Saint-Etienne, France
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Vuillerot C, Chevignard M, Debillon T, Kossorotoff M, Zerat M, Husson B, Renaud C, Chabrier S. Quelles recommandations autour de la prise en charge MPR des nouveau-nés ayant un pronostic d’hémiplégie après infarctus cérébral néonatal ? Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Vuillerot C, Chevignard M, Debillon T, Kossorotoff M, Zerat M, Husson B, Renaud C, Chabrier S. Perinatal arterial ischemic stroke: Guidelines for diagnosis, management and rehabilitation of newborn with a high risk of hemiplegia. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Fontsere N, Mestres G, Burrel M, Barrufet M, Montana X, Arias M, Ojeda R, Maduell F, Campistol JM, Nagaraja P, Rees D, Husein T, Chess J, Lin CC, Yang WC, Khosravi M, Kandil H, Cross J, Hopkins S, Collier S, Lopes D, Pereira S, Gomes AM, Ventura A, Martins V, Seabra J, Rothuizen TC, Damanik F, Visser MJT, Lavrijsen T, Cox MAJ, Moroni L, Rabelink TJ, Rotmans JI, Fontsere N, Cardozo C, Donate J, Soriano A, Muros M, Pons M, Mensa J, Campistol JM, Navarro-Gonzalez JF, Maduell F, Wijewardane A, Murley A, Powers S, Allen C, Baharani J, Wilmink T, Esenturk M, Zengin M, Dal M, Tahtal N, Shibata K, Shinzato T, Satta H, Nishihara M, Koguchi N, Kuji T, Kawata S, Kaneda T, Yasuda G, Scrivano J, Pettorini L, Rutigliano T, Ciavarella GM, De Biase L, Punzo G, Mene P, Pirozzi N, El Haggan W, Belazrague K, Ehoussou S, Foucher V, El Salhy M, Ouellet G, Davis J, Caron P, Leblanc M, Pettorini L, Romitelli F, Fazzari L, Scrivano J, Ortu G, Di Stasio E, Punzo G, Mene P, Pirozzi N, Loizzo G, Vigano SM, Bacchini G, Rocchi E, Sala V, Pontoriero G, Letachowicz K, Go biowski T, Kusztal M, Letachowicz W, Weyde W, Klinger M, Murley A, Wijewardane A, Powers S, Allen C, Hollingsworth L, Wilmink T, Baharani J, Roca-Tey R, Samon R, Ibrik O, Roda A, Gonzalez-Oliva JC, Martinez-Cercos R, Viladoms J, Renaud CJ, Lim EK, Seow TY, Teh HS, Tosic J, Jankovic A, Djuric P, Radovic Maslarevic V, Popovic J, Dimkovic N, Kazantzi A, Trigka K, Buono F, Laurino S, Toriello G, Di Luccio R, Galise A, Kim YO, Yoon SA, Kim YS, Choi SJ, Min JW, Cheong MA, Asano M, Oguchi K, Saito A, Onishi Y, Yamamoto Y, Fukuhara S, Akiba T, Akizawa T, Kurokawa K, Guedes Marques M, Ibeas J, Maia P, Ponce P, Chang KY, Park HS, Kim HW, Choi BS, Park CW, Yang CW, Jin DC, Likaj E, Seferi S, Caco G, Petrela E, Barbullushi M, Idrizi A, Thereska N, Lomonte C, Casucci F, Libutti P, Lisi P, Basile C, Ancarani P, Valsuani G, Cavallo L, Parodi D, Lorusso C, Renaud C, Lai BC, Tho S, Yeoh L, Guedes Marques M, Botelho C, Maia P, Ponce P, Yankovoy A, Alexandr S, Smoliacov A, Stepanov V, Rees D, Parker C, Davies P, Taylor S, Mikhail A, Kim YO, Yoon SA, Kim YS, Choi SJ, Min JW, Cheong MA, Gubensek J, Persic V, Vajdic B, Ponikvar R, Buturovic-Ponikvar J, Hadimeri U, Warme AV, Stegmayr B, Jankovic A, Suvakov S, Tosic J, Damjanovic T, Djuric P, Bajcetic S, Radovic-Maslarevic V, Popovic J, Simic T, Dimkovic N, Likaj E, Seferi S, Petrela E, Idrizi A, Rroji M, Barbullushi M, Thereska N, Chua HL, Kanda H, See SL, Liew NC, Tsuchida K, Tomo T, Fukasawa M, Kawashima S, Minakuchi J, Thanaraj V, Dhaygude A, Ikeda K, Forneris G, Cecere P, Pozzato M, Trogolo M, Vallero A, Mesiano P, Roccatello D, Esenturk M, Zengin M, Keskin L, Loizzo G, Vigano SM, Bacchini G, Rocchi E, Sala V, Pontoriero G, Casey JR, Hanson CS, Winkelmayer WC, Craig J, Palmer S, Strippoli G, Tong A, Ferrara D, Scamarda S, Bernardino L, Amico L, Lorito MC, Incalcaterra F, Visconti L, Visconti G, Valenza F, D'Amato F, Di Napoli A, Tazza L, Chicca S, Lapucci E, Silvestri P, Di Lallo D, Michelozzi P, Davoli M. DIALYSIS VASCULAR ACCESS. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chevignard M, Vuillerot C, Kossorotoff M, Zerah M, Husson B, Saliou G, Debillon T, Renaud C, Chabrier S. Presentation of the French National Reference Centre for Pediatric Stroke. Ann Phys Rehabil Med 2013. [DOI: 10.1016/j.rehab.2013.07.770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chevignard M, Vuillerot C, Kossorotoff M, Zerah M, Husson B, Saliou G, Debillon T, Renaud C, Chabrier S. Présentation du Centre national de référence AVC de l’enfant. Ann Phys Rehabil Med 2013. [DOI: 10.1016/j.rehab.2013.07.762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Renaud C, Andrews S, Djelouadji Z, Lecheval S, Corrao-Revol N, Buff S, Demont P, Kodjo A. Prevalence of the Leptospira serovars bratislava, grippotyphosa, mozdok and pomona in French dogs. Vet J 2012; 196:126-7. [PMID: 23141966 DOI: 10.1016/j.tvjl.2012.10.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 06/21/2012] [Accepted: 10/01/2012] [Indexed: 10/27/2022]
Abstract
Although most French dogs are correctly vaccinated against leptospirosis with inactivated strains of canicola and icterohaemorrhagiae, the disease is still very prevalent in France raising the question of whether the vaccines used require updating. The aim of the present study was to provide serological data regarding circulation of the Leptospira serovars: grippotyphosa, bratislava, pomona and mozdok, which are contained in vaccines available in other parts of the world and which could be rapidly adapted for France. Results indicated that the epidemiology was consistent with the circulation of Leptospira belonging to the serogroups Australis and Grippotyphosa and that the case to support the inclusion of either pomona or mozdok in a dog vaccine for France was weak.
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Affiliation(s)
- Claire Renaud
- Laboratoire des leptospires, VetAgro Sup Campus Vétérinaire de Lyon, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France
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Lerceteau-Köhler E, Moing A, Guérin G, Renaud C, Petit A, Rothan C, Denoyes B. Genetic dissection of fruit quality traits in the octoploid cultivated strawberry highlights the role of homoeo-QTL in their control. Theor Appl Genet 2012; 124:1059-77. [PMID: 22215248 PMCID: PMC3304055 DOI: 10.1007/s00122-011-1769-3] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Accepted: 12/08/2011] [Indexed: 05/18/2023]
Abstract
Fruit quality traits are major breeding targets in the Rosaceae. Several of the major Rosaceae species are current or ancient polyploids. To dissect the inheritance of fruit quality traits in polyploid fleshy fruit species, we used a cultivated strawberry segregating population comprising a 213 full-sibling F1 progeny from a cross between the variety 'Capitola' and the genotype 'CF1116'. We previously developed the most comprehensive strawberry linkage map, which displays seven homoeology groups (HG), including each four homoeology linkage groups (Genetics 179:2045-2060, 2008). The map was used to identify quantitative trait loci (QTL) for 19 fruit traits related to fruit development, texture, colour, anthocyanin, sugar and organic acid contents. Analyses were carried out over two or three successive years on field-grown plants. QTL were detected for all the analysed traits. Because strawberry is an octopolyploid species, QTL controlling a given trait and located at orthologous positions on different homoeologous linkage groups within one HG are considered as homoeo-QTL. We found that, for various traits, about one-fourth of QTL were putative homoeo-QTL and were localised on two linkage groups. Several homoeo-QTL could be detected the same year, suggesting that several copies of the gene underlying the QTL are functional. The detection of some other homoeo-QTL was year-dependent. Therefore, changes in allelic expression could take place in response to environmental changes. We believe that, in strawberry as in other polyploid fruit species, the mechanisms unravelled in the present study may play a crucial role in the variations of fruit quality.
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Affiliation(s)
- E. Lerceteau-Köhler
- Ciref, Maison Jeannette, 24140 Douville, France
- Present Address: Department of Plant Biology and Forest Genetics, Uppsala BioCenter, Swedish University of Agricultural Sciences, Box 7080, 750 07 Uppsala, Sweden
| | - A. Moing
- UMR 1332 Biologie du Fruit et Pathologie, INRA, 33140 Villenave d’Ornon, France
| | - G. Guérin
- UMR 1332 Biologie du Fruit et Pathologie, INRA, 33140 Villenave d’Ornon, France
| | - C. Renaud
- UMR 1332 Biologie du Fruit et Pathologie, INRA, 33140 Villenave d’Ornon, France
| | - A. Petit
- Ciref, Maison Jeannette, 24140 Douville, France
| | - C. Rothan
- UMR 1332 Biologie du Fruit et Pathologie, INRA, 33140 Villenave d’Ornon, France
| | - Béatrice Denoyes
- UMR 1332 Biologie du Fruit et Pathologie, INRA, 33140 Villenave d’Ornon, France
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Husson B, Adamsbaum C, Hertz-Pannier L, Renaud C, Chabrier S. Comment l’ARM du polygone de Willis permet une meilleure compréhension des accidents artériels cérébraux (AAC) du nouveau-né à terme. J Neuroradiol 2012. [DOI: 10.1016/j.neurad.2012.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Addas R, Berjaud J, Renaud C, Berthoumieu P, Dahan M, Brouchet L. Esophageal Perforation Management: A Single-Center Experience. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/ojts.2012.24023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kossorotoff M, Hervé D, Toulgoat F, Renaud C, Presles E, Chabriat H, Chabrier S. Paediatric moyamoya in mainland France: a comprehensive survey of academic neuropaediatric centres. Cerebrovasc Dis 2011; 33:76-9. [PMID: 22134052 DOI: 10.1159/000333424] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Accepted: 09/09/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Epidemiological data of paediatric moyamoya disease/syndrome (MMD/MMS) in non-Asian populations are scarce. METHODS A questionnaire was sent to every French neuropaediatric academic centre to estimate the prevalence, incidence, familial form rate and location of paediatric MMD/MMS cases. Specific paediatric data were also retrieved from the most recent nationwide Japanese study. RESULTS A 100% response rate was obtained. The prevalence of paediatric MMD/MMS was estimated at 0.39/100,000 children (95% CI: 0.28-0.49), and the incidence was estimated at 0.065/100,000 children/year (95% CI: 0.025-0.12), with 7.5% familial cases. The prevalence was homogenous within the different administrative areas. CONCLUSIONS This comprehensive survey of MMD/MMS in academic neuropaediatric centres suggests that the prevalence of the disease in children in France is approximately 1/20th of that estimated in Asia.
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Affiliation(s)
- M Kossorotoff
- Paediatric Neurology Department, Hôpital Necker-Enfants Malades, APHP, Paris, France.
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Abstract
The z-buffer is a well-known hidden-part removal technique commonly used by local illumination algorithms. Some global illumination approaches use this technique too, in order to approximate energy exchanges. In this paper we propose a massively parallel implementation of the z-buffer on the MP-1 machine. Efficiency is achieved by precisely studying the different stages of the algorithm, and by taking care in correctly using the SIMD control of the architecture. Local illumination models are then applied to the z-buffer algorithm, by using Gouraud and Phong's interpolations. Finally, the parallel z-buffer is used in a massively parallel radiosity algorithm. The results obtained allow to provide quickly illuminated images by decreasing dramatically the computation time required for global illumination.
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Affiliation(s)
- C. Renaud
- Laboratoire d'Informatique du Littoral, BP 719 - 62228 Calais Cedex, France
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Renaud C, Pergam SA, Polyak C, Jain R, Kuypers J, Englund JA, Corey L, Boeckh MJ. Early emergence of an H275Y mutation in a hematopoietic cell transplant recipient treated with intravenous peramivir. Transpl Infect Dis 2010; 12:513-7. [PMID: 21062390 PMCID: PMC3024056 DOI: 10.1111/j.1399-3062.2010.00582.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Oseltamivir resistance in pandemic 2009 influenza A/H1N1 is caused by the neuraminidase mutation H275Y. This mutation has also been associated with in vitro resistance to peramivir, but few clinical cases have been described to date. Using allele-specific real-time reverse transcriptase polymerase chain reaction assay for the H275Y mutation, we were able to identify resistant H1N1 in a hematopoietic cell transplant recipient receiving intravenous peramivir therapy, and through serial testing we determined the molecular evolution of resistance. This case demonstrates that an H275Y mutant population can emerge early and replicate in vivo under peramivir antiviral pressure to become the major viral population.
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Affiliation(s)
- C Renaud
- Département de Microbiologie et Immunologie, Centre Hospitalier Universitaire Sainte-Justine, Montréal, Quebec, Canada
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Renaud C, Tardy-Poncet B, Presles E, Chabrier S. correspondence: Low prevalence of coagulation F2 and F5 polymorphisms in mothers and children in a large cohort of patients with neonatal arterial ischemic stroke. Br J Haematol 2010; 150:709-12. [DOI: 10.1111/j.1365-2141.2010.08259.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
INTRODUCTION The impressive results seen when giant and compressing lung bullae are resected has inspired pneumonologists and thoracic surgeons to consider the possibility of applying a similar approach to the treatment of respiratory failure due to chronic obstructive pulmonary disease (COPD). STATE OF THE ART The major problem with this surgical indication lies in our ability to understand fully the pathophysiology of lesions and thus identify which emphysematous patients will have a response most similar to that achieved in purely bullous disease. PERSPECTIVES At the present time consideration should be given as to whether surgery is the only means of reducing pulmonary distension. Indeed, as endoscopic alternatives develop could they reproduce its beneficial effects and what would be their place compared to the surgery? CONCLUSIONS While waiting the development of these innovations, if the selection of the candidates is correct, the surgical treatment of lung hyperinflation can temporarily improve the quality of life of these patients by decreasing their dyspnea and increasing their exercise tolerance.
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Affiliation(s)
- L Brouchet
- Service de Chirurgie Thoracique, Clinique des Voies Respiratoires, CHU de Larrey, Toulouse, France
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Abstract
AIM Hydroxychloroquine therapy during pregnancy is thought to be safe for foetuses. Normal visual function has been showed on clinical grounds in infants exposed in utero to hydroxychloroquine, but there are few visual neurophysiological data. Our study was designed to assess retina and visual pathways using electroretinogram and visual evoked potentials in a series of infants born to mothers treated by hydroxychloroquine for connective tissue diseases. METHODS Twenty-one infants (3-7 months of age) were consecutively examined between June 2002 and May 2007. Full-field electroretinogram was recorded by contact lens electrodes and visual evoked potentials were recorded by occipital surface electrodes using flash stimulation in mesopic condition. Analysis was focused on the amplitudes and latencies of the a- and b-waves of electroretinogram and the latency of the P(100) component of visual evoked potentials. RESULTS Electroretinogram abnormalities were detected in six infants, associated with delayed visual evoked potentials in four of them. CONCLUSION Early electroretinogram and visual evoked potentials testing evidenced neurophysiological visual disturbances in a subset of infants born to mothers treated by hydroxychloroquine. Systematic clinical and neurophysiological vision testing during childhood is needed to detect possible consequences of antenatal exposure to hydroxychloroquine.
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Affiliation(s)
- F Renault
- Unité de neurophysiologie clinique, Hôpital Armand-Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France.
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Guilherme R, Renaud C, Dommergues M, Mitanchez D. [Repeat doses of prenatal corticosteroids for women at risk of preterm birth: a difficult consensus]. ACTA ACUST UNITED AC 2009; 38:459-68. [PMID: 19473782 DOI: 10.1016/j.jgyn.2008.12.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2008] [Revised: 12/19/2008] [Accepted: 12/22/2008] [Indexed: 10/20/2022]
Abstract
A single course of antenatal corticosteroids in women at risk of preterm delivery reduces the risk of neonatal mortality and morbidity. Recent experimental and clinical studies have stated early, medium and long term consequences of single or repeated courses of antenatal corticosteroids. Betamethasone and dexamethasone are the two molecules usually used. Benefits are observed until the first 24 hours after the first injection. Single-course corticosteroids are not effective in babies born more than 7 days after initial treatment. Benefits of corticosteroids were evaluated between 22 and 35 weeks of gestation. Antenatal exposure to single-course betamethasone might result in disruption on glucose metabolism in adult offspring. Weekly courses of prenatal corticosteroids therapy are not recommended. Repeat prenatal corticosteroids given to women at continuing risk of preterm birth 7 or more days after an initial course reduced the inherent respiratory complications of prematurity and improved health outcomes of preterm infants. However, adverse outcomes have been reported concerning cognitive development. Although repeat course may have short term benefits, whether there are effects on health into childhood and beyond must await later assessment. Long term data are needed to recommend repeated courses.
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Affiliation(s)
- R Guilherme
- Service de biologie du développement, hôpital Robert-Debré, université Pierre-et-Marie-Curie, 48, boulevard Sérurier, 75019 Paris, France.
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Caron P, Maiza JC, Renaud C, Cormier C, Barres BH, Souberbielle JC. High third generation/second generation PTH ratio in a patient with parathyroid carcinoma: clinical utility of third generation/second generation PTH ratio in patients with primary hyperparathyroidism. Clin Endocrinol (Oxf) 2009; 70:533-8. [PMID: 18782355 DOI: 10.1111/j.1365-2265.2008.03408.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Primary hyperparathyroidism (PHP) is caused by parathyroid adenomas or hyperplasia, and occasionally by parathyroid carcinoma. Recently a high third generation/second generation PTH ratio has been observed in some patients with parathyroid carcinoma. PATIENTS AND METHODS We report the case of a 60-year old woman who was presented a fourth episode of PTH-related hypercalcaemia due to a parathyroid carcinoma. Serum PTH levels were measured using a second generation assay and a third generation assay before, 4 and 7 months after the fourth surgery. Then, PTH levels were measured in 294 osteoporotic normocalcaemic patients as well as in 30 consecutive PHP patients. RESULTS Before surgery of the patient with parathyroid carcinoma, second generation PTH was 229 pg/ml, third generation PTH was 675 pg/ml and third generation/second generation PTH ratio was 2.95. Four and 7 months after surgery the third generation/second generation PTH ratio was 0.70 and 0.66, respectively. All osteoporotic patients had a normal third generation/second generation PTH ratio (0.585 +/- 0.118) whereas only one patient (3.3%) with PHP had a third generation/second generation PTH ratio > 1 (1.54). CONCLUSION A high third generation/second generation PTH ratio could be observed in patients with parathyroid carcinoma, is uncommon in benign PHP and is absent in osteoporotic patients without PHP. Therefore, PTH level can be measured using second and third generation assays in some PHP patients, and a specific surgical protocol for possible parathyroid carcinoma could be discussed in patients with a high third generation/second generation PTH ratio.
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Affiliation(s)
- Philippe Caron
- Department of Endocrinology and Metabolic diseases, CHU Larrey, Toulouse, Cedex, France.
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Dirlewanger E, Cardinet G, Boudehri K, Renaud C, Monllor S, Illa E, Howad W, Arús P, Croset C, Poëssel J, Maucourt M, Deborde C, Moing A. DETECTION OF QTLS CONTROLLING MAJOR FRUIT QUALITY COMPONENTS IN PEACH WITHIN THE EUROPEAN PROJECT ISAFRUIT. ACTA ACUST UNITED AC 2009. [DOI: 10.17660/actahortic.2009.814.90] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Abstract
This study compared the effect of high-intensity interval training (HIT) versus specific game-based handball training (HBT) on handball performance parameters. Thirty-two highly-trained adolescents (15.5+/-0.9 y) were assigned to either HIT (n=17) or HBT (n=15) groups, that performed either HIT or HBT twice per week for 10 weeks. The HIT consisted of 12-24 x 15 s runs at 95% of the speed reached at the end of the 30-15 Intermittent Fitness Test (V(IFT)) interspersed with 15 s passive recovery, while the HBT consisted of small-sided handball games performed over a similar time period. Before and after training, performance was assessed with a counter movement jump (CMJ), 10 m sprint time (10 m), best (RSAbest) and mean (RSAmean) times on a repeated sprint ability (RSA) test, the V(IFT) and the intermittent endurance index (iEI). After training, RSAbest (-3.5+/-2.7%), RSAmean (-3.9+/-2.2%) and V(IFT) (+6.3+/-5.2%) were improved (P<0.05), but there was no difference between groups. In conclusion, both HIT and HBT were found to be effective training modes for adolescent handball players. However, HBT should be considered as the preferred training method due to its higher game-based specificity.
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Affiliation(s)
- M Buchheit
- Faculté des sciences du sport, Laboratoire de Recherche EA-3300: Adaptations Physiologiques à l'Exercice et Réadaptation à l'Effort, Amiens, France.
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Dailly E, Deslandes G, Hourmant M, Petit T, Renaud C, Treilhaud M, Jolliet P. Comparison between a liquid chromatography-tandem mass spectrometry assay and a fluorescent polarization immunoassay to measure whole blood everolimus concentration in heart and renal transplantations. J Clin Lab Anal 2008; 22:282-5. [PMID: 18623123 DOI: 10.1002/jcla.20258] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Various methods [fluorescent polarization immunoassay (FPIA) and liquid chromatography-tandem mass spectrometry (LC-MS/MS) assay] are used for therapeutic drug monitoring of everolimus. The aim of this study is to compare these assays in renal and heart transplantation. The correlation between results was investigated by linear regression in 44 patients (24 heart recipients and 20 renal recipients--137 samples). The comparison between assays was performed by a paired t-test. A highly significant correlation was found between FPIA and LC-MS/MS in heart and renal recipients [FPIA=0.851 x LC-MS/MS+1.773r(2)=0.8738 (P<0.001)]. Paired t-tests did not show a significant difference between everolimus whole blood concentrations in the populations of heart and renal recipients or heart recipients or renal recipients. FPIA and LC-MS/MS assays gave consistent overall results although some significant differences were observed in some samples between these methods indicating that FPIA assay has limitations that deserve further investigations.
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Affiliation(s)
- Eric Dailly
- Clinical Pharmacology Department, Hôtel Dieu, CHU de Nantes, France.
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Brouchet L, Mazieres J, Bauvin E, Bigay-Game L, Renaud C, Berjaud J, Dahan M. Particularités de la prise en charge chirurgicale du cancer bronchique chez la femme. Rev Mal Respir 2007; 24:877-82. [DOI: 10.1016/s0761-8425(07)91390-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bernard A, Benoit L, Renaud C, Favre JP. Classification for predicting mediastinal lymph node metastases in patients with T1 or T2 lung cancer. Interact Cardiovasc Thorac Surg 2007; 4:256-9. [PMID: 17670404 DOI: 10.1510/icvts.2004.101006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The aim of this study is to classify patients into risk groups for mediastinal lymph node metastases. Three hundred and thirty-seven patients underwent lung resection for lung cancer. The nodal status was pN0 in 181 patients, pN1 in 62 and pN2 in 94. The presence of the involvement of one mediastinal compartment (superior or inferior) or two mediastinal compartments (superior and inferior) was considered to be the main end point. One mediastinal compartment was involved in 65 patients and two mediastinal compartments in 29 patients. Two variables (visceral pleural invasion and the primary tumor location) were retained in the model. The regression tree analysis categorized patients into 3 risk groups for the involvement of two mediastinal compartments. The low-risk group included 118 patients with a tumor located in the left side and no visceral pleural invasion. The intermediate-risk group included 160 patients with a tumor located in the right side and no visceral pleural invasion. The high-risk group included 59 patients with visceral pleural invasion and a tumor located in the right side or left lower lobe. A practical, easy-to-use risk grouping system is proposed to aid the decision making and to simplify mediastinal lymphadenectomy procedure.
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Affiliation(s)
- Alain Bernard
- Department of General Thoracic Surgery, Hôpital Universitaire, 2 bd Marechal de Lattre de tassigny, BP 1542, 21034 Dijon Cedex, France.
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Brouchet L, Bauvin E, Marcheix B, Bigay-Game L, Renaud C, Berjaud J, Falcoze PE, Venissac N, Raz D, Jablons D, Mazières J, Dahan M. Impact of Induction Treatment on Postoperative Complications in the Treatment of Non-small Cell Lung Cancer. J Thorac Oncol 2007; 2:626-31. [PMID: 17607118 DOI: 10.1097/jto.0b013e318074bbe2] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION A main drawback of neoadjuvant chemotherapy is that it may increase operative morbidity and mortality. The aim of this study was to determine the impact of chemotherapy on these complications. METHODS Patient data were collected from the Epithor database. From June 2002 to June 2004, 3888 successive observations of surgery for lung cancer have been reported from 51 thoracic surgery departments throughout France. Logistic regression analysis was performed to identify preoperative clinical characteristics of patients with significant postoperative complications. RESULTS Of 3888 patients, 555 (14.3%) received induction chemotherapy. The groups were similar with respect to sex and the number of comorbidities. The in-hospital mortality rate was 3.01%. The multivariate analysis allows us to identify age (older than 65 years), sex (male), preoperative clinical score (moderate and severe), surgical procedure (right pneumonectomy and bilobectomy) as significantly associated with in-hospital mortality. No statistical difference was observed according to the delivery or preoperative chemotherapy. In total, 1219 patients (31.4%) had at least one postoperative complication. Using a multivariate analysis, we observed a significant correlation between morbidity and age (older than 65 years), sex (male), presence of comorbidities (two or more), clinical score (moderate), and type of operation (bilobectomy). Preoperative administration of chemotherapy did not significantly influenced postoperative morbidity. CONCLUSIONS Preoperative chemotherapy is not associated with an increase in either the mortality rate or major surgical complications. Future randomized trials are warranted to confirm the survival benefit of this strategy.
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Affiliation(s)
- Laurent Brouchet
- Department of Thoracic Surgery, Rangueil-Larrey University Hospital, Toulouse, France.
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Marcheix B, Brouchet L, Renaud C, Lamarche Y, Mugniot A, Benouaich V, Berjaud J, Dahan M. Videothoracoscopic silver nitrate pleurodesis for primary spontaneous pneumothorax: an alternative to pleurectomy and pleural abrasion? Eur J Cardiothorac Surg 2007; 31:1106-9. [PMID: 17466531 DOI: 10.1016/j.ejcts.2007.03.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2006] [Revised: 03/10/2007] [Accepted: 03/13/2007] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND The optimal surgical management of primary spontaneous pneumothorax (PSP) is still controversial, especially in terms of the technique to be used. The aim of this paper was to report our experience of videothoracoscopic silver nitrate pleurodesis (VATSNP). METHODS Between 1995 and 2004, all the medical records of the patients who had undergone silver nitrate videothoracoscopic pleurodesis (SNVTP) were reviewed. All the patients had systematic prospective clinical and radiological follow-up at 1 month. The last 250 patients were retrospectively recontacted for long-term follow-up. RESULTS Six hundred and three patients underwent SNVP. No intra-operative death or major complication occurred during or after the procedures. Mean operating time was 40.2+/-10.7 min. The conversion to thoracotomy rate was 2.5%. Main postoperative complications were prolonged air leak (15.6%), partial residual pneumothorax (5.1%), pleural effusion (2.5%) and postoperative bleeding (2.0%). The follow-up was 100% complete 1 month after discharge; at 1 month, the recurrence rate was 0.5%. The last 250 patients were retrospectively recontacted with a mean follow-up of 2.9+/-2.3 years (184 patients). The long-term recurrence rate was 1.1%. CONCLUSIONS It is one of the first reports on the use of video-assisted thoracoscopic silver nitrate pleurodesis for PSP. We demonstrate safety and effectiveness of the procedure with long-term results comparable with standard open pleural abrasion or pleurectomy.
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Affiliation(s)
- Bertrand Marcheix
- Department of Thoracic Surgery, Rangueil-Larrey University Hospital, 24 chemin de Pouvourville, TSA 30031, 31059 Toulouse Cedex 9, France
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Brouchet L, Rouquette I, Touriol C, Marchaix B, Rochaix P, Bigay-Game L, Hermant C, Mazieres J, Delord J, Renaud C, Didier A, Dahan M, Arnal J, Prats H. 040 Cancer bronchique rapidement évolutif : Expressions des marqueurs angiogéniques. Rev Mal Respir 2006. [DOI: 10.1016/s0761-8425(06)71868-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Renaud C, de Montgolfier I, Vautier-Brouzes D, Costedoat-Chalumeau N, Lapillonne A, Gold F. Conséquences périnatales des connectivites maternelles : étude prospective de 73 cas. Arch Pediatr 2006; 13:1386-90. [PMID: 17011758 DOI: 10.1016/j.arcped.2006.07.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2006] [Accepted: 07/10/2006] [Indexed: 11/22/2022]
Abstract
AIM To describe a group of newborns born from mothers with connective tissue diseases, to determine their perinatal characteristics and the neonatal morbidity, and to assess the possible role of drugs received by mothers on the obstetrical and neonatal morbidity. PATIENTS AND METHODS During a 34-month period, newborns born from mothers with connective tissue diseases and followed in a single center were prospectively included in the study. In all cases, maternal treatments (i.e. hydroxychloroquine and/or prednisone) were continued during pregnancy. RESULTS Among the 73 included infants, 18 (25%) were born before 37 weeks of gestation and 3 (4%) were small for gestational age. A neonatal lupus syndrome with facial rash and thrombopenia was observed in 1 case. No neonatal congenital heart block was observed and maternal treatment did not significantly influence the mean PR or QT intervals. Four infants had minor congenital abnormalities and 3 had feto-maternal infection. CONCLUSION These data show that perinatal morbidity is lower than that previously published. We postulate that a strict follow-up during pregnancy may have played a significant positive role in these results.
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Affiliation(s)
- C Renaud
- Unité de néonatologie, groupe hospitalier Pitié-Salpêtrière, Assistance publique-Hôpitaux de Paris, 43-87 boulevard de l'Hôpital, 76651 Paris cedex 13, France.
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Marcheix B, Brouchet L, Lamarche Y, Renaud C, Gomez-Brouchet A, Hollington L, Chabbert V, Berjaud J, Dahan M. Pulmonary angiomyolipoma. Ann Thorac Surg 2006; 82:1504-6. [PMID: 16996965 DOI: 10.1016/j.athoracsur.2006.02.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2005] [Revised: 01/30/2006] [Accepted: 02/03/2006] [Indexed: 01/28/2023]
Abstract
Extrarenal angiomyolipoma are benign lesions that have rarely been described in the thorax. We present the clinical, radiographic, and pathologic findings of a pulmonary angiomyolipoma in a 63-year-old woman who had no diagnosis of tuberous sclerosis or lymphangioleiomyomatosis. We believe that this report is one of the first descriptions of angiomyolipoma of the lung.
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Affiliation(s)
- Bertrand Marcheix
- Department of Thoracic Surgery, Rangueil-Larrey University Hospital, Toulouse, France
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Crognier L, Pontier S, Renaud C, Brouchet L, Rouquette I, Dahan M, Carles P, Didier A. Place des biopsies pulmonaires chirurgicales dans la prise en charge des pneumopathies infiltratives diffuses au CHU de Toulouse de 1993 à 2004. Rev Mal Respir 2006. [DOI: 10.1016/s0761-8425(06)72449-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Baugé J, Pain F, Barbieux C, Biju C, Buisson A, Damas M, Dupont S, Huguet C, Le Floch M, Mailliez G, Potreau M, Renaud C, Rosmorduc B, Roux J, Torchut B. Harcèlement au travail : étude des cas rencontrés en service interentreprises et du devenir de ces salariés un an après la dernière consultation. ARCH MAL PROF ENVIRO 2004. [DOI: 10.1016/s1775-8785(04)93167-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
Surgery is an important therapeutic option for emphysema patients with invalidating dyspnea and poor quality-of-life. Preoperative tests must determine the degree of functional impairment (dyspnea score, walking test, quality-of-life) and evaluate lesion reversibility (imaging, function tests, TLCO, blood gases, scintigraphy, right microcatheterism) and assess the patient's general health status. Besides lung transplantation, the only surgical alternative is resection which, depending on the type of parenchymal damage, can involve excision of bullae or volume reduction. Several modalities can be proposed: atypical resection of the apexes via sternotomy, multiple unilateral atypical resection, simple lobectomy. The choice depends on the distribution of the parenchymal destruction and also on the severity of the emphysema and the patient's age. Operative mortality is now well below 10%. Volume reduction provides significant functional improvement in 80% of patients but with a temporary effect (4-5 years). Bullae excision is particularly important since functional recovery is achieved early and persists.
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Affiliation(s)
- L Brouchet
- Service de Chirurgie Thoracique, Hôpital Larrey-CHU, 24, chemin de Pouvourville, 31059 Toulouse.
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