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Roche A, Duane C, Murchan A, Donaghy L, Guilfoyle P, Dolan E, Sheehan O. 352 THE IMPACT OF ETHNICITY ON ACUTE STROKE ADMISSIONS IN AN IRISH HOSPITAL. Age Ageing 2022. [DOI: 10.1093/ageing/afac218.309] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Recent studies have demonstrated the variability of aetiology, clinical presentation and overall mortality between different ethnic groups presenting with acute stroke. The non-native Irish population accounts for almost 13% of the total population and is predicted to grow over the next decade. Recording and analysis of acute stroke patients based on their ethnicity and population demographics is an important step in planning for the future of stroke care in Ireland. In this study, we aimed to evaluate key differences between the Irish and non-Irish population presenting with acute stroke to an Irish hospital.
Methods
We reviewed our hospital stroke registry over a 12-month period (January-December 2021). Key parameters including country of birth, ethnicity, other patient demographics, clinical presentation, aetiology and subtype of stroke, stroke management and clinical outcomes.
Results
Of the 245 acute strokes admitted to our hospital in 2021, non-ethically Irish patients made up 12.2% (n = 30). The average age of non-ethnically Irish stroke presentations was younger than Irish stroke presentations (59 versus 71 years). Haemorrhagic strokes were more common in the non-Irish population (13.3% in non-Irish cohort vs 9.8% in Irish cohort). Median time of symptom onset to presentation to hospital was 3 hours and 58 minutes in the Irish patients and 6 hours and 10 minutes in the non-Irish patients. The overall length of stay in hospital post stroke was similar between the two population groups at an average of 19 days duration.
Conclusion
This study identifies disparities in acute stroke presentation between the Irish and non-Irish population presenting to an Irish hospital. This study demonstrated the importance of further research on a national scale to record the variability of strokes in different ethnic groups in order to adequately plan primary and secondary stroke care and provide targeted public health campaigns to remain inclusive to Ireland’s growing and increasingly diverse population.
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Affiliation(s)
- A Roche
- Connolly Hospital Blanchardstown Department of Geriatric Medicine, , Dublin, Ireland
| | - C Duane
- Connolly Hospital Blanchardstown Department of Geriatric Medicine, , Dublin, Ireland
| | - A Murchan
- Connolly Hospital Blanchardstown Department of Geriatric Medicine, , Dublin, Ireland
| | - L Donaghy
- Connolly Hospital Blanchardstown Department of Geriatric Medicine, , Dublin, Ireland
| | - P Guilfoyle
- Connolly Hospital Blanchardstown Department of Geriatric Medicine, , Dublin, Ireland
| | - E Dolan
- Connolly Hospital Blanchardstown Department of Geriatric Medicine, , Dublin, Ireland
| | - O Sheehan
- Connolly Hospital Blanchardstown Department of Geriatric Medicine, , Dublin, Ireland
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Jutant E, Meyrignac O, Beurnier A, Jais X, Pham T, Morin L, Boucly A, Bulifon S, Samy F, Harrois A, Jevnikar M, Noël N, Pichon J, Roche A, Seferian A, Soliman S, Duranteau J, Becquemont L, Monnet X, Sitbon O, Bellin M, Humbert M, Savale L, Montani D. Symptômes respiratoires et anomalies radiologiques dans le COVID long. Revue des Maladies Respiratoires Actualités 2022. [PMCID: PMC8709679 DOI: 10.1016/j.rmra.2021.11.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Brosseau C, Danger R, Durand M, Durand E, Foureau A, Lacoste P, Tissot A, Roux A, Reynaud-Gaubert M, Kessler R, Mussot S, Dromer C, Brugière O, Mornex JF, Guillemain R, Claustre J, Magnan A, Brouard S, Velly J, Rozé H, Blanchard E, Antoine M, Cappello M, Ruiz M, Sokolow Y, Vanden Eynden F, Van Nooten G, Barvais L, Berré J, Brimioulle S, De Backer D, Créteur J, Engelman E, Huybrechts I, Ickx B, Preiser T, Tuna T, Van Obberghe L, Vancutsem N, Vincent J, De Vuyst P, Etienne I, Féry F, Jacobs F, Knoop C, Vachiéry J, Van den Borne P, Wellemans I, Amand G, Collignon L, Giroux M, Angelescu D, Chavanon O, Hacini R, Martin C, Pirvu A, Porcu P, Albaladejo P, Allègre C, Bataillard A, Bedague D, Briot E, Casez‐Brasseur M, Colas D, Dessertaine G, Francony G, Hebrard A, Marino M, Protar D, Rehm D, Robin S, Rossi‐Blancher M, Augier C, Bedouch P, Boignard A, Bouvaist H, Briault A, Camara B, Chanoine S, Dubuc M, Quétant S, Maurizi J, Pavèse P, Pison C, Saint‐Raymond C, Wion N, Chérion C, Grima R, Jegaden O, Maury J, Tronc F, Flamens C, Paulus S, Philit F, Senechal A, Glérant J, Turquier S, Gamondes D, Chalabresse L, Thivolet‐Bejui F, Barnel C, Dubois C, Tiberghien A, Pimpec‐Barthes F, Bel A, Mordant P, Achouh P, Boussaud V, Méléard D, Bricourt M, Cholley B, Pezella V, Brioude G, D'Journo X, Doddoli C, Thomas P, Trousse D, Dizier S, Leone M, Papazian L, Bregeon F, Coltey B, Dufeu N, Dutau H, Garcia S, Gaubert J, Gomez C, Laroumagne S, Mouton G, Nieves A, Picard C, Rolain J, Sampol E, Secq V, Perigaud C, Roussel J, Senage T, Mugniot A, Danner I, Haloun A, Abbes S, Bry C, Blanc F, Lepoivre T, Botturi‐Cavaillès K, Loy J, Bernard M, Godard E, Royer P, Henrio K, Dartevelle P, Fabre D, Fadel E, Mercier O, Stephan F, Viard P, Cerrina J, Dorfmuller P, Feuillet S, Ghigna M, Hervén P, Le Roy Ladurie F, Le Pavec J, Thomas de Montpreville V, Lamrani L, Castier Y, Mordant P, Cerceau P, Augustin P, Jean‐Baptiste S, Boudinet S, Montravers P, Dauriat G, Jébrak G, Mal H, Marceau A, Métivier A, Thabut G, Lhuillier E, Dupin C, Bunel V, Falcoz P, Massard G, Santelmo N, Ajob G, Collange O, Helms O, Hentz J, Roche A, Bakouboula B, Degot T, Dory A, Hirschi S, Ohlmann‐Caillard S, Kessler L, Schuller A, Bennedif K, Vargas S, Bonnette P, Chapelier A, Puyo P, Sage E, Bresson J, Caille V, Cerf C, Devaquet J, Dumans‐Nizard V, Felten M, Fischler M, Si Larbi A, Leguen M, Ley L, Liu N, Trebbia G, De Miranda S, Douvry B, Gonin F, Grenet D, Hamid A, Neveu H, Parquin F, Picard C, Stern M, Bouillioud F, Cahen P, Colombat M, Dautricourt C, Delahousse M, D'Urso B, Gravisse J, Guth A, Hillaire S, Honderlick P, Lequintrec M, Longchampt E, Mellot F, Scherrer A, Temagoult L, Tricot L, Vasse M, Veyrie C, Zemoura L, Dahan M, Murris M, Benahoua H, Berjaud J, Le Borgne Krams A, Crognier L, Brouchet L, Mathe O, Didier A, Krueger T, Ris H, Gonzalez M, Aubert J, Nicod L, Marsland B, Berutto T, Rochat T, Soccal P, Jolliet P, Koutsokera A, Marcucci C, Manuel O, Bernasconi E, Chollet M, Gronchi F, Courbon C, Hillinger S, Inci I, Kestenholz P, Weder W, Schuepbach R, Zalunardo M, Benden C, Buergi U, Huber L, Isenring B, Schuurmans M, Gaspert A, Holzmann D, Müller N, Schmid C, Vrugt B, Rechsteiner T, Fritz A, Maier D, Deplanche K, Koubi D, Ernst F, Paprotka T, Schmitt M, Wahl B, Boissel J, Olivera‐Botello G, Trocmé C, Toussaint B, Bourgoin‐Voillard S, Séve M, Benmerad M, Siroux V, Slama R, Auffray C, Charron D, Lefaudeux D, Pellet J. Blood CD9 + B cell, a biomarker of bronchiolitis obliterans syndrome after lung transplantation. Am J Transplant 2019; 19:3162-3175. [PMID: 31305014 DOI: 10.1111/ajt.15532] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 06/12/2019] [Accepted: 07/07/2019] [Indexed: 01/25/2023]
Abstract
Bronchiolitis obliterans syndrome is the main limitation for long-term survival after lung transplantation. Some specific B cell populations are associated with long-term graft acceptance. We aimed to monitor the B cell profile during early development of bronchiolitis obliterans syndrome after lung transplantation. The B cell longitudinal profile was analyzed in peripheral blood mononuclear cells from patients with bronchiolitis obliterans syndrome and patients who remained stable over 3 years of follow-up. CD24hi CD38hi transitional B cells were increased in stable patients only, and reached a peak 24 months after transplantation, whereas they remained unchanged in patients who developed a bronchiolitis obliterans syndrome. These CD24hi CD38hi transitional B cells specifically secrete IL-10 and express CD9. Thus, patients with a total CD9+ B cell frequency below 6.6% displayed significantly higher incidence of bronchiolitis obliterans syndrome (AUC = 0.836, PPV = 0.75, NPV = 1). These data are the first to associate IL-10-secreting CD24hi CD38hi transitional B cells expressing CD9 with better allograft outcome in lung transplant recipients. CD9-expressing B cells appear as a contributor to a favorable environment essential for the maintenance of long-term stable graft function and as a new predictive biomarker of bronchiolitis obliterans syndrome-free survival.
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Affiliation(s)
- Carole Brosseau
- Centre de Recherche en Transplantation et Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France.,Institut du thorax, Inserm UMR 1087, CNRS, UMR 6291, Université de Nantes, Nantes, France.,Institut du thorax, CHU de Nantes, Nantes, France
| | - Richard Danger
- Centre de Recherche en Transplantation et Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
| | - Maxim Durand
- Centre de Recherche en Transplantation et Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France.,Faculté de Médecine, Université de Nantes, Nantes, France
| | - Eugénie Durand
- Centre de Recherche en Transplantation et Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
| | - Aurore Foureau
- Institut du thorax, Inserm UMR 1087, CNRS, UMR 6291, Université de Nantes, Nantes, France.,Institut du thorax, CHU de Nantes, Nantes, France
| | - Philippe Lacoste
- Institut du thorax, Inserm UMR 1087, CNRS, UMR 6291, Université de Nantes, Nantes, France.,Institut du thorax, CHU de Nantes, Nantes, France
| | - Adrien Tissot
- Centre de Recherche en Transplantation et Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France.,Institut du thorax, Inserm UMR 1087, CNRS, UMR 6291, Université de Nantes, Nantes, France.,Institut du thorax, CHU de Nantes, Nantes, France.,Faculté de Médecine, Université de Nantes, Nantes, France
| | - Antoine Roux
- Hôpital Foch, Suresnes, France.,Université Versailles Saint-Quentin-en-Yvelines, UPRES EA220, Versailles, France
| | | | | | - Sacha Mussot
- Centre Chirurgical Marie Lannelongue, Service de Chirurgie Thoracique, Vasculaire et Transplantation Cardiopulmonaire, Le Plessis Robinson, France
| | | | - Olivier Brugière
- Hôpital Bichat, Service de Pneumologie et Transplantation Pulmonaire, Paris, France
| | | | | | - Johanna Claustre
- Clinique Universitaire Pneumologie, Pôle Thorax et Vaisseaux, CHU Grenoble Alpes, Université Grenoble Alpes, Inserm U1055, Grenoble, France
| | - Antoine Magnan
- Institut du thorax, Inserm UMR 1087, CNRS, UMR 6291, Université de Nantes, Nantes, France.,Institut du thorax, CHU de Nantes, Nantes, France
| | - Sophie Brouard
- Centre de Recherche en Transplantation et Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France.,Centre d'Investigation Clinique (CIC) Biothérapie, CHU Nantes, Nantes, France
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Bonnier G, Fischi-Gomez E, Roche A, Hilbert T, Kober T, Krueger G, Granziera C. Personalized pathology maps to quantify diffuse and focal brain damage. Neuroimage Clin 2018; 21:101607. [PMID: 30502080 PMCID: PMC6413479 DOI: 10.1016/j.nicl.2018.11.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 10/02/2018] [Accepted: 11/18/2018] [Indexed: 01/04/2023]
Abstract
Background and objectives Quantitative MRI (qMRI) permits the quantification of brain changes compatible with inflammation, degeneration and repair in multiple sclerosis (MS) patients. In this study, we propose a new method to provide personalized maps of tissue alterations and longitudinal brain changes based on different qMRI metrics, which provide complementary information about brain pathology. Methods We performed baseline and two-years follow-up on (i) 13 relapsing-remitting MS patients and (ii) four healthy controls. A group consisting of up to 65 healthy controls was used to compute the reference distribution of qMRI metrics in healthy tissue. All subjects underwent 3T MRI examinations including T1, T2, T2* relaxation and Magnetization Transfer Ratio (MTR) imaging. We used a recent partial volume estimation algorithm to estimate the concentration of different brain tissue types on T1 maps; then, we computed a deviation map (z-score map) for each contrast at both time-points. Finally, we subtracted those deviation maps only for voxels showing a significant difference with healthy tissue in one of the time points, to obtain a difference map for each subject. Results and conclusion Control subjects did not show any significant z-score deviations or longitudinal z-score changes. On the other hand, MS patients showed brain regions with cross-sectional and longitudinal concomitant increase in T1, T2, T2* z-scores and decrease of MTR z-scores, suggesting brain tissue degeneration/loss. In the lesion periphery, we observed areas with cross-sectional and longitudinal decreased T1/T2 and slight decrease in T2* most likely related to iron accumulation. Moreover, we measured longitudinal decrease in T1, T2 - and to a lesser extent in T2* - as well as a concomitant increase in MTR, suggesting remyelination/repair. In summary, we have developed a method that provides whole-brain personalized maps of cross-sectional and longitudinal changes in MS patients, which are computed in patient space. These maps may open new perspectives to complement and support radiological evaluation of brain damage for a given patient.
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Affiliation(s)
- G Bonnier
- MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States
| | - E Fischi-Gomez
- MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States; Signal Processing Laboratory 5 (LTS5), École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
| | - A Roche
- Advanced Clinical Imaging Technology (HC CEMEA SUI DI PI), Siemens Healthcare AG, Switzerland; Department of Radiology, University Hospital (CHUV), Lausanne, Switzerland; Signal Processing Laboratory 5 (LTS5), École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - T Hilbert
- Advanced Clinical Imaging Technology (HC CEMEA SUI DI PI), Siemens Healthcare AG, Switzerland; Department of Radiology, University Hospital (CHUV), Lausanne, Switzerland; Signal Processing Laboratory 5 (LTS5), École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - T Kober
- Advanced Clinical Imaging Technology (HC CEMEA SUI DI PI), Siemens Healthcare AG, Switzerland; Department of Radiology, University Hospital (CHUV), Lausanne, Switzerland; Signal Processing Laboratory 5 (LTS5), École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - G Krueger
- Siemens Healthcare AG (HC CEMEA DI), Zürich, Switzerland
| | - C Granziera
- MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States; Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research and Biomedical Engineering, University Hospital Basel and University of Basel, Basel, Switzerland; Translational Imaging in Neurology (ThINk) Basel, Department of Biomedical Engineering, University Hospital Basel and University of Basel, Basel, Switzerland
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Philippot Q, Roche A, Goyard C, Pastré J, Planquette B, Meyer G, Sanchez O. Prise en charge de l'embolie pulmonaire grave en réanimation. Méd Intensive Réa 2018. [DOI: 10.3166/rea-2018-0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
L'embolie pulmonaire (EP) grave, définie par la présence d’un état de choc, est à l'origine d'une mortalité importante. L'objectif de cette mise au point est de synthétiser les dernières avancées et recommandations concernant la prise en charge des formes graves d'EP. La stratification du risque individuel de mortalité précoce permet d'apporter une stratégie diagnostique et thérapeutique optimisée pour chaque patient. Le traitement symptomatique consiste essentiellement en la prise en charge de l'état de choc. L'anticoagulation curative par héparine non fractionnée est réservée aux patients hémodynamiquement instables. Chez ces patients à haut risque, la thrombolyse systémique diminue la mortalité et le risque de récidive d'EP. Chez les patients à risque intermédiaire élevé, la thrombolyse systémique à dose standard diminue le risque de choc secondaire mais sans impact sur la mortalité globale. La thrombolyse est donc réservée aux patients à risque intermédiaire élevé présentant secondairement un état de choc. L'embolectomie chirurgicale reste indiquée en cas de contre-indication absolue à la thrombolyse ou en cas d'échec de celle-ci. Le positionnement dans l'algorithme thérapeutique de l'assistance extracorporelle et des techniques percutanées de revascularisation reste à définir. Leurs indications doivent donc être discutées dans des centres experts après une concertation multidisciplinaire incluant pneumologues, cardiologues, réanimateurs, radiologues interventionnels et chirurgiens cardiaques.
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Roche A, Maréchal B, Kober T, Henry H, von Gunten A, Meuli R, Popp J. A volume-based automated morphometry tool for the prediction of cognitive decline and Alzheimer's disease pathology in older subjects. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2180] [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: 10/18/2022]
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Sahakian E, Roche A, Lenoir J, Arnaud Y, Romand M, Charbonnier J. Conversion chimique des revêtements zingués. caractérisation des substrats traités et mesure d’adhérence de systèmes peints. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/jcp/1987840269] [Citation(s) in RCA: 2] [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: 11/14/2022]
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Vaglio-Gaudard C, Leray O, Colombier AC, Gueton O, Hudelot JP, Valentini M, Di Salvo J, Gruel A, Klein JC, Roche A, Beretz D, Geslot B, Girard JM, Jammes C, Sireta P. Monte Carlo Interpretation of the AMMON/REF Experiment in EOLE for the JHR Reactor Neutron Calculations. NUCL SCI ENG 2017. [DOI: 10.13182/nse12-67] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- C. Vaglio-Gaudard
- CEA, DEN, DER0SPRC, Cadarache, F-13108 Saint Paul les Durance, France
| | - O. Leray
- CEA, DEN, DER0SPRC, Cadarache, F-13108 Saint Paul les Durance, France
| | - A. C. Colombier
- CEA, DEN, DER0SPRC, Cadarache, F-13108 Saint Paul les Durance, France
| | - O. Gueton
- CEA, DEN, DER0SPRC, Cadarache, F-13108 Saint Paul les Durance, France
| | - J. P. Hudelot
- CEA, DEN, DER0SPRC, Cadarache, F-13108 Saint Paul les Durance, France
| | - M. Valentini
- CEA, DEN, DER0SPRC, Cadarache, F-13108 Saint Paul les Durance, France
| | - J. Di Salvo
- CEA, DEN, DER0SPEx, Cadarache, F-13108 Saint Paul les Durance, France
| | - A. Gruel
- CEA, DEN, DER0SPEx, Cadarache, F-13108 Saint Paul les Durance, France
| | - J. C. Klein
- CEA, DEN, DER0SPEx, Cadarache, F-13108 Saint Paul les Durance, France
| | - A. Roche
- CEA, DEN, DER0SPEx, Cadarache, F-13108 Saint Paul les Durance, France
| | - D. Beretz
- CEA, DEN, DER0SPEx, Cadarache, F-13108 Saint Paul les Durance, France
| | - B. Geslot
- CEA, DEN, DER0SPEx, Cadarache, F-13108 Saint Paul les Durance, France
| | - J. M. Girard
- CEA, DEN, DER0SPEx, Cadarache, F-13108 Saint Paul les Durance, France
| | - C. Jammes
- CEA, DEN, DER0SPEx, Cadarache, F-13108 Saint Paul les Durance, France
| | - P. Sireta
- CEA, DEN, DER0SRJH, Cadarache, F-13108 Saint Paul les Durance, France
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Ikram A, Roche A. Achillon Achilles tendon suture system technical tip. Ann R Coll Surg Engl 2016; 99:337. [PMID: 27791413 DOI: 10.1308/rcsann.2016.0329] [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] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- A Ikram
- Trauma and Orthopaedics, Chelsea and Westminster Hospital NHS Foundation Trust , London , UK
| | - A Roche
- Trauma and Orthopaedics, Chelsea and Westminster Hospital NHS Foundation Trust , London , UK
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Trégouët DA, Delluc A, Roche A, Derbois C, Olaso R, Germain M, de Andrade M, Tang W, Chasman DI, van Hylckama Vlieg A, Reitsma PH, Kabrhel C, Smith N, Morange PE. Is there still room for additional common susceptibility alleles for venous thromboembolism? J Thromb Haemost 2016; 14:1798-802. [PMID: 27326655 PMCID: PMC5152582 DOI: 10.1111/jth.13392] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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] [Received: 04/11/2016] [Indexed: 11/30/2022]
Abstract
UNLABELLED Essentials Genetic architecture of venous thromboembolism (VTE) remains to be fully disentangled. 11 newly discovered candidate polymorphisms were genotyped in 3019 VTE cases and 2605 controls. None of the 11 polymorphisms were significantly associated with VTE risk. Additional major efforts are needed to identify VTE-associated genetic variants. SUMMARY Background Through a meta-analysis of 12 genome-wide association studies, the International Network against VENous Thrombosis (INVENT) consortium identified two novel susceptibility loci for venous thromboembolism (VTE). This project has also generated other candidates that need to be confirmed. Objectives To assess the association with VTE of common single-nucleotide polymorphisms (SNPs) that demonstrated strong statistical, but not genome-wide, significance in the INVENT cohorts. Patients/methods Eleven SNPs were genotyped and tested for association with VTE in three case-control studies totaling 3019 patients and 2605 healthy individuals. Results and conclusions None of the tested SNPs showed evidence for association with VTE. Different strategies are needed to decipher the whole spectrum of common and rare genetic variations associated with VTE risk.
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Affiliation(s)
- D A Trégouët
- Team Genomics & Pathophysiology of Cardiovascular Diseases, UPMC Univ. Paris 06, INSERM, UMR_S 1166, Sorbonne Universités, Paris, France.
- ICAN Institute for Cardiometabolism and Nutrition, Paris, France.
| | - A Delluc
- EA3878 and CIC1412, Université de Brest, Brest, France
| | - A Roche
- Service de Pneumologie et soins intensifs respiratoires, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, France
- Inserm UMR-S1140, Paris, France
| | - C Derbois
- Centre National de Génotypage, Institut de Génomique, CEA, Evry, France
| | - R Olaso
- Centre National de Génotypage, Institut de Génomique, CEA, Evry, France
| | - M Germain
- Team Genomics & Pathophysiology of Cardiovascular Diseases, UPMC Univ. Paris 06, INSERM, UMR_S 1166, Sorbonne Universités, Paris, France
- ICAN Institute for Cardiometabolism and Nutrition, Paris, France
| | - M de Andrade
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - W Tang
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA
| | - D I Chasman
- Division of Preventive Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - A van Hylckama Vlieg
- Department of Thrombosis and Hemostasis, Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - P H Reitsma
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - C Kabrhel
- Department of Emergency Medicine, Massachusetts General Hospital, Channing Network Medicine, Harvard Medical School, Boston, MA, USA
| | - N Smith
- Department of Epidemiology, University of Washington, Seattle, WA, USA
- Group Health Research Institute, Group Health Cooperative, Seattle, WA, USA
- Seattle Epidemiologic Research and Information Center, VA Office of Research and Development, Seattle, WA, USA
| | - P E Morange
- Laboratory of Haematology, La Timone Hospital, Marseille, France
- Unité Mixte de Recherche en Santé (UMR_S) 1062, Nutrition Obesity and Risk of Thrombosis, Institut National pour la Santé et la Recherche Médicale (INSERM), Aix-Marseille University, Marseille, France
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Abstract
A stenosis of a side-to-side splenorenal shunt was treated by percutaneous angioplasty two years after the performance of the shunt. After dilatation, there was a fall of the splenorenal pressure gradient from 28 to 17 cm H2O and good transanastomotic flow was re-established. As in other arterial and venous territories, angioplasty may be an interesting alternative to surgery.
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Gruel A, Salvo JD, Roche A, Girard JM, Philibert H, Bonora J, Ledoux JF, Morel C, Lecluze A, Foucras A, Vaglio-Gaudard C, Colombier AC. Local Neutron Flux Distribution Measurements by Wire-Dosimetry in the AMMON Experimental Program in the EOLE Reactor. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201610601009] [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: 11/15/2022] Open
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Roche A, Sedgwick PM, Harland CC. Laser treatment for female facial hirsutism: are quality-of-life benefits sustainable? Clin Exp Dermatol 2015; 41:248-52. [PMID: 26620607 DOI: 10.1111/ced.12775] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2015] [Indexed: 11/25/2022]
Abstract
BACKGROUND Facial hirsutism in women impairs quality of life (QoL). Laser hair removal (LHR) has been shown to confer significant improvements in QoL for up to 6 months after treatment, but the longer-term benefits have not been investigated. AIM To assess the sustainability of LHR benefits to the QoL of hirsute women up to 30 months after treatment. METHODS Hirsute women about to undergo National Health Service (NHS)-funded LHR in 2010-2012 (n = 142) completed proforma questionnaires quantifying the burden of hirsutism on their QoL. These included: the Dermatology Life Quality Index (DLQI) (assessing functional impact on QoL), the number of days spent removing hair per week and a 10-point scale assessing how much their condition bothered them (emotional burden on QoL). Postal questionnaires recorded QoL changes up to 30 months after LHR. Improvements in QoL scores for each woman were compared. Responses were then grouped into periods of 0-6, 6-12 and 12-30 months post-treatment, and the magnitude of change between these time groups was compared for each QoL measure. RESULTS In total, 63 women responded to the post-LHR questionnaire. QoL was severely affected, but improved with LHR. The number of days spent removing hair reverted to baseline at 12-30 months post-LHR, and a significant decline was seen in the magnitude of improvement in emotional burden on QoL over time (P = 0.04). However, no significant difference existed between improvements in DLQI scores (P = 0.12). CONCLUSION LHR supplies some functional QoL benefits up to 30 months post-treatment. Emotional benefits are less sustainable. Further LHR treatment is required to maintain QoL benefits.
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Affiliation(s)
- A Roche
- St George's University of London, London, UK
| | | | - C C Harland
- Epsom and St Helier University Hospitals NHS Trust, Surrey, UK
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15
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Granziera C, Daducci A, Donati A, Bonnier G, Romascano D, Roche A, Bach Cuadra M, Schmitter D, Klöppel S, Meuli R, von Gunten A, Krueger G. A multi-contrast MRI study of microstructural brain damage in patients with mild cognitive impairment. Neuroimage Clin 2015; 8:631-9. [PMID: 26236628 PMCID: PMC4511616 DOI: 10.1016/j.nicl.2015.06.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 05/25/2015] [Accepted: 06/07/2015] [Indexed: 11/05/2022]
Abstract
Objectives The aim of this study was to investigate pathological mechanisms underlying brain tissue alterations in mild cognitive impairment (MCI) using multi-contrast 3 T magnetic resonance imaging (MRI). Methods Forty-two MCI patients and 77 healthy controls (HC) underwent T1/T2* relaxometry as well as Magnetization Transfer (MT) MRI. Between-groups comparisons in MRI metrics were performed using permutation-based tests. Using MRI data, a generalized linear model (GLM) was computed to predict clinical performance and a support-vector machine (SVM) classification was used to classify MCI and HC subjects. Results Multi-parametric MRI data showed microstructural brain alterations in MCI patients vs HC that might be interpreted as: (i) a broad loss of myelin/cellular proteins and tissue microstructure in the hippocampus (p ≤ 0.01) and global white matter (p < 0.05); and (ii) iron accumulation in the pallidus nucleus (p ≤ 0.05). MRI metrics accurately predicted memory and executive performances in patients (p ≤ 0.005). SVM classification reached an accuracy of 75% to separate MCI and HC, and performed best using both volumes and T1/T2*/MT metrics. Conclusion Multi-contrast MRI appears to be a promising approach to infer pathophysiological mechanisms leading to brain tissue alterations in MCI. Likewise, parametric MRI data provide powerful correlates of cognitive deficits and improve automatic disease classification based on morphometric features. Forty-two MCI patients and 77 HC underwent multi-contrast quantitative MRI. MCI patients showed T1/T2* increase and MTR decrease in the hippocampus. MCI patients exhibited T1 increase in WM and T2* decrease in the pallidus. MRI metrics accurately predicted memory and executive function in patients. SVM classified MCI patients with 75% accuracy using volumetric/parametric MRI.
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Affiliation(s)
- C Granziera
- Department of Clinical Neurosciences, CHUV, Lausanne, VD, Switzerland ; Advanced Clinical Imaging Technology, EPFL, Lausanne, VD, Switzerland
| | - A Daducci
- STI IEL LTS5, EPFL, Lausanne, VD, Switzerland
| | - A Donati
- Service of Old-Age Psychiatry, Department of Psychiatry, CHUV, Lausanne, VD, Switzerland
| | - G Bonnier
- Advanced Clinical Imaging Technology, EPFL, Lausanne, VD, Switzerland
| | - D Romascano
- Advanced Clinical Imaging Technology, EPFL, Lausanne, VD, Switzerland
| | - A Roche
- Advanced Clinical Imaging Technology, EPFL, Lausanne, VD, Switzerland
| | - M Bach Cuadra
- Department of Radiology, CHUV, Lausanne, VD, Switzerland ; Signal Processing Core, Center for Biomedical Imaging, CHUV, Lausanne, VD, Switzerland
| | - D Schmitter
- Advanced Clinical Imaging Technology, EPFL, Lausanne, VD, Switzerland
| | - S Klöppel
- Department of Psychiatry and Psychotherapy, Section of Gerontopsychiatry, Department of Neurology, University Medical Center, Freiburg, Germany
| | - R Meuli
- Department of Radiology, CHUV, Lausanne, VD, Switzerland
| | - A von Gunten
- Service of Old-Age Psychiatry, Department of Psychiatry, CHUV, Lausanne, VD, Switzerland
| | - G Krueger
- Advanced Clinical Imaging Technology, EPFL, Lausanne, VD, Switzerland ; Heathcare IM S AW, Siemens Schweiz AG, Renens, VD, Switzerland
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Salminger S, Sturma A, Herceg M, Roche A, Riedl O, Bergmeister K, Aszmann O. Tensor fasciae latae-tendon transfer for functional reconstruction of the quadriceps muscle after femoral nerve palsy. J Plast Reconstr Aesthet Surg 2015; 68:129-31. [DOI: 10.1016/j.bjps.2014.08.074] [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] [Received: 01/29/2014] [Revised: 06/15/2014] [Accepted: 08/24/2014] [Indexed: 11/26/2022]
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Roche A, Owen K, Strowman S, Fung T. Public Perceptions toward Appropriate Duration of Breastfeeding. J Acad Nutr Diet 2013. [DOI: 10.1016/j.jand.2013.06.320] [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: 11/15/2022]
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Roche A, Ripoll G, Joy M, Folch J, Panea B, Calvo J, Alabart J. Effects of the FecXR allele of BMP15 gene on the birth weight, growth rate and carcass quality of Rasa Aragonesa light lambs. Small Rumin Res 2012. [DOI: 10.1016/j.smallrumres.2012.06.011] [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: 10/28/2022]
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20
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Rothschild-Fuentes B, Roche A, Jiménez-Genchi A, Sánchez-Ferrer JC, Fresan A, Muñoz-Delgado J. Effects of mirtazapine on the sleep wake rhythm of geriatric patients with major depression: an exploratory study with actigraphy. Pharmacopsychiatry 2012; 46:59-62. [PMID: 22915486 DOI: 10.1055/s-0032-1323655] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Major depression and insomnia are among the most frequent neuropsychiatric syndromes in the geriatric population. Although most SSRI antidepressants affect sleep continuity, mirtazapine has been found to improve sleep continuity in patients with depression. The aim of the present study was to assess by actigraphic recordings changes in sleep patterns of geriatric patients with major depression before and during treatment with mirtazapine (30 mg). METHODS Patients aged 60 years or more with major depressive disorder were recruited at the outpatient service of a specialized mental health centre. Severity of depression was rated with the Montgomery-Asberg depression rating scale and subjective perception of sleep was assessed with the Pittsburgh sleep quality index (PSQI). Actigraphic parameters were registered 4 days before the onset of mirtazapine treatment (patients were drug free in this period of time) and recorded at day 60 of treatment with mirtazapine. RESULTS A significant decrease was observed in the sleep fragmentation index. While a significant improvement was observed in the subjective assessment of quality after treatment with mirtazapine, actigraphic measures of sleep parameters did not show changes in line with mirtazapine treatment. DISCUSSION Mirtazapine produces minimal changes on actigraphic measures in the sleep of elderly outpatients. Sleep produced by mirtazapine indicates a more pronounced effect in ≥ 80-year-old patients. This differential response should be considered during treatment of this clinical population.
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Affiliation(s)
- B Rothschild-Fuentes
- Servicio de Psicogeriatría, Hospital Psiquiátrico Fray Bernardino Alvarez, México, D.F., México
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Granziera C, Daducci A, Meskaldji DE, Roche A, Maeder P, Michel P, Hadjikhani N, Sorensen AG, Frackowiak RS, Thiran JP, Meuli R, Krueger G. A new early and automated MRI-based predictor of motor improvement after stroke. Neurology 2012; 79:39-46. [DOI: 10.1212/wnl.0b013e31825f25e7] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Granziera C, Daducci A, Simioni S, Cavassini M, Roche A, Meskaldji D, Michel M, Calmy A, Hirschel B, Krueger G, Du Pasquier R. Micro-Structural Alterations in the Brain of Well-Treated HIV+ Patients with Mild Neurocognitive Disorders: A Multi-Contrast MRI Study at High Field (S37.001). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s37.001] [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: 11/15/2022] Open
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Abstract
Accurate clinical and radiographic examination of a wrist is required to diagnose injury. Knowledge of basic wrist anatomy is the key to ensuring a complete assessment. We tested junior doctors' basic knowledge of the bony anatomy of the wrist. We asked 102 trainees in accident and emergency and orthopaedic departments to palpate nine landmarks on uninjured subjects and then asked them to name the carpal bones on a plain wrist radiograph. No doctor identified all nine landmarks clinically. Only 60% could accurately name all eight carpal bones on a plain radiograph. This study highlights a lack of basic anatomical and radiographic knowledge that is required for examination of the wrist in the hospital setting and discusses issues that may relate to this in medical training.
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Affiliation(s)
- A Roche
- Department of Orthopaedics, The Royal Liverpool and Broadgreen University Hospitals NHS Trust, Prescot Street, Liverpool, UK.
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Daffaud PX, Roche A, Michel JL. [Diabetic myonecrosis: a case report]. ACTA ACUST UNITED AC 2011; 91:1284-6. [PMID: 21242909 DOI: 10.1016/s0221-0363(10)70191-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Perry DC, Tawfiq SM, Roche A, Shariff R, Garg NK, James LA, Sampath J, Bruce CE. The association between clubfoot and developmental dysplasia of the hip. ACTA ACUST UNITED AC 2010; 92:1586-8. [PMID: 21037357 DOI: 10.1302/0301-620x.92b11.24719] [Citation(s) in RCA: 25] [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] [Indexed: 11/05/2022]
Abstract
The association between idiopathic congenital talipes equinovarus (CTEV) and developmental dysplasia of the hip is uncertain. We present an observational cohort study spanning 6.5 years of selective ultrasound screening of hips in clubfoot. From 119 babies with CTEV there were nine cases of hip dysplasia, in seven individuals. This suggests that 1 in 17 babies with CTEV will have underlying hip dysplasia. This study supports selective ultrasound screening of hips in infants with CTEV.
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Affiliation(s)
- D C Perry
- Orthopaedic Department, Alder Hey Children's Hospital, Liverpool L12 2AP, UK.
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26
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Roche A. [Radiation protection of patients in interventional radiology]. J Radiol 2010; 91:1231-1235. [PMID: 21178897 DOI: 10.1016/s0221-0363(10)70179-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The purpose of this article is to provide radiologists with key elements of radiation protection for interventional radiology patients. The following points will be discussed: standards of the fluoroscopy units, dedicated dosimetry, risks (especially cutaneous) and means to reduce them, optimization of interventional radiology dose protocols, and national and international regulations. Appropriateness criteria in interventional radiology are national guidelines that should be implemented.
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Affiliation(s)
- A Roche
- Département d'Imagerie, Institut Gustave Roussy, 39 Rue Camille Desmoulins, 94800 Villejuif, France.
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Peronneau P, Lassau N, Leguerney I, Roche A, Cosgrove D. Contrast ultrasonography: necessity of linear data processing for the quantification of tumor vascularization. Ultraschall Med 2010; 31:370-378. [PMID: 20577941 DOI: 10.1055/s-0029-1245450] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
PURPOSE This study is intended to compare the value of uncompressed ultrasonic data, obtained after linear power detection of the ultrasonic radiofrequencies that we call linear data, with usual compressed video data for the quantification of tumor perfusion, particularly for monitoring antivascular therapy. MATERIALS AND METHODS To form a clinically useful ultrasonic image, the detected power of the received signals (linear data) is compressed in a quasi-logarithmic fashion in order to match the limited dynamic range of the video monitor. The resulting reduced range of signals from an injected contrast agent may limit the sensitivity to changes in the time-intensity curves. Following a theoretical evaluation of the effects of compression on time-intensity curves and as an in vivo example, we measured at different times the effects of an antivascular drug administered to mice bearing melanoma tumors. The mean time-intensity curves within the tumors after bolus injection of a contrast agent were determined using both linear and video data. Linearized data was recovered using the inverse of the true scanner's compression law, which was experimentally determined. Three features were extracted from the time-intensity curves: peak intensity (PI), time to peak intensity (TPI) and area under the curve in the wash-in phase (AUC (wash-in)). When contrast reached its maximum value, the coefficient of variation reflecting the heterogeneity of the intensity of contrast uptake within the tumor, was computed using both data sets. RESULTS TPI was found to be similar with either data set (r = 0.98, p < 0.05, factor of 1.09). Linear PI and AUC (wash-in) had significantly earlier decreases after drug administration than video data (p = 0.015 and p = 0.03, respectively). The coefficient of variation was significantly lower when using video rather than linear data (p < 10 (-4)). CONCLUSION In conclusion, the use of linear data is the only mathematically valid methodology for determining a tumor's time-intensity curve and, in practice, it allows earlier demonstration of responses to antivascular drugs.
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Affiliation(s)
- P Peronneau
- Imaging Department, Institut Gustave Roussy, Villejuif, France.
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Roche A, Brown P, Rani S, Landes C, Sampath J. "toddlers" fracture: the importance of a complete clinical assessment. Arch Emerg Med 2009. [DOI: 10.1136/emj.2009.082081k] [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: 11/04/2022]
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Bormann C, Roche A, Hassun P, Motta E, Sarafini P, Smith G. The effect of sperm separation on sperm chromatin decondensation and motility at 0 and 24 hours of culture. Fertil Steril 2009. [DOI: 10.1016/j.fertnstert.2009.07.1236] [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: 10/20/2022]
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Kar-Purkayastha I, Ingram C, Maguire H, Roche A. The importance of school and social activities in the transmission of influenza A(H1N1)v: England, April - June 2009. ACTA ACUST UNITED AC 2009; 14. [PMID: 19712642 DOI: 10.2807/ese.14.33.19311-en] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
During the containment phase in the United Kingdom (April to June 2009), a cluster of influenza A(H1N1)v cases was identified prompting further investigation and public health action by the Health Protection Agency. The first confirmed case, a pupil at a school in England, was imported. During the following two weeks, 16 further cases were confirmed with epidemiological links to the first imported case. In this cluster, we found that significant transmission occurred in two classes with attack rates of 17.4% and 7.4%. In each of the two classes a case had attended school whilst symptomatic. Other settings included a choir and a party. Minimum and maximum attack rates were 3.6% and 4.2% for the choir and 14.3% and 25% for the party. We did not find any evidence of transmission on two school bus trips despite exposure over 50 minutes to a symptomatic case and over two periods of 30 minutes to a case during the prodromal phase (i.e. within 12 hours of symptom onset). Nor was there onward transmission in another school despite exposure over several hours to two cases, both of whom attended school during the prodromal phase.
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Kitching A, Roche A, Balasegaram S, Heathcock R, Maguire H. Oseltamivir adherence and side effects among children in three London schools affected by influenza A(H1N1)v, May 2009 – an internet-based cross-sectional survey. Euro Surveill 2009; 14:19287. [DOI: 10.2807/ese.14.30.19287-en] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This report describes the results of a cross-sectional anonymised online survey on adherence to, and side effects from oseltamivir when offered for prophylaxis, among pupils from one primary and two secondary schools with confirmed cases of influenza A(H1N1)v in London in April-May 2009. Of 103 respondents (response rate 40%), 95 were estimated to have been offered oseltamivir for prophylaxis, of whom 85 (89%) actually took any. Less than half (48%) of primary schoolchildren completed a full course, compared to three-quarters (76%) of secondary schoolchildren. More than half (53%) of all schoolchildren taking prophylactic oseltamivir reported one or more side effects. Gastrointestinal symptoms were reported by 40% of children and 18% reported a mild neuropsychiatric side effect. The results confirmed anecdotal evidence of poor adherence, provided timely information with which to assist decision-making, and formed part of the body of growing evidence that contributed to policy changes to restrict widespread use of prophylaxis for school contacts of confirmed cases of influenza A(H1N1)v.
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Affiliation(s)
- A Kitching
- Health Protection Agency (HPA), London Region Epidemiology Unit, London, United Kingdom
- European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | - A Roche
- Health Protection Agency, South West London Health Protection Unit (HPU), London, United Kingdom
| | - S Balasegaram
- Health Protection Agency, North East and North Central London HPU, London, United Kingdom
| | - R Heathcock
- Health Protection Agency, South East London HPU, London, United Kingdom
| | - H Maguire
- Health Protection Agency, South West London Health Protection Unit (HPU), London, United Kingdom
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Mencarelli MA, Spanhol-Rosseto A, Artuso R, Rondinella D, De Filippis R, Bahi-Buisson N, Nectoux J, Rubinsztajn R, Bienvenu T, Moncla A, Chabrol B, Villard L, Krumina Z, Armstrong J, Roche A, Pineda M, Gak E, Mari F, Ariani F, Renieri A. Novel FOXG1 mutations associated with the congenital variant of Rett syndrome. J Med Genet 2009; 47:49-53. [PMID: 19578037 DOI: 10.1136/jmg.2009.067884] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Rett syndrome is a severe neurodevelopmental disorder representing one of the most common genetic causes of mental retardation in girls. The classic form is caused by MECP2 mutations. In two patients affected by the congenital variant of Rett we have recently identified mutations in the FOXG1 gene encoding a brain specific transcriptional repressor, essential for early development of the telencephalon. METHODS 60 MECP2/CDKL5 mutation negative European Rett patients (classic and variants), 43 patients with encephalopathy with early onset seizures, and four atypical Rett patients were analysed for mutations in FOXG1. RESULTS AND CONCLUSIONS Mutations have been identified in four patients, independently classified as congenital Rett variants from France, Spain and Latvia. Clinical data have been compared with the two previously reported patients with mutations in FOXG1. In all cases hypotonia, irresponsiveness and irritability were present in the neonatal period. At birth, head circumference was normal while a deceleration of growth was recognised soon afterwards, leading to severe microcephaly. Motor development was severely impaired and voluntary hand use was absent. In contrast with classic Rett, patients showed poor eye contact. Typical stereotypic hand movements with hand washing and hand mouthing activities were present continuously. Some patients showed abnormal movements of the tongue and jerky movements of the limbs. Brain magnetic resonance imaging showed corpus callosum hypoplasia in most cases, while epilepsy was a variable sign. Scoliosis was present and severe in the older patients. Neurovegetative symptoms typical of Rett were frequently present.
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Affiliation(s)
- M A Mencarelli
- Medical Genetics, Molecular Biology Department, University of Siena, 53100 Siena, Italy
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Lassau N, Koscielny S, Chebil M, Chami L, Bendjilali R, Roche A, Escudier B, LeCesne A, Soria J. Functional imaging using DCE-US: Which parameter for the early evaluation of antiangiogenetic therapies? J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.3524] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
3524 Background: The early evaluation of anti-angiogenic treatments is a challenge in oncology. Functional imaging methods based on the measure of tumoral vascularization have been developed using different modalities (CT, MRI, US). We analyzed the response in four studies using different targeted treatments with dynamic contrast enhanced-ultrasonography (DCE-US). Seven parameters characterizing tumoral perfusion were estimated. The objective of the study was to determine which parameter is the most appropriate to confirm earlier the efficacy of treatments. Methods: A total of 823 DCE-US were performed in 117 patients included in 4 following studies (multikinase inhibitor targeting angiogenic-receptor with a cytotoxic or thyrosine-kinase inhibitor targeted angiogenic-receptor and C-kit or monoclonal antibody anti-VEGFR). Each DCE-US was performed using contrast agent (Sonovue, Bracco) with perfusion and quantification softwares (Toshiba) from raw linear data with a high temporal resolution: 4 frames per second during 3 minutes. Seven quantitative parameters of perfusion were estimated: peak intensity (PI) and area under the total curve (AUC), area under the wash-in (AUWI), area under the wash-out (AUWO), time to peak intensity, mean transit time (MTT), wash-in slope. DCE-US were performed before treatment and after D3, D 8, 15, 21 (according each study design) and every 2 months. Patients were classified in good responders and bad responders according the response (RECIST on CT-scan) after 2 cycles or 2 months. Results: Among the 7 parameters, 2 parameters related to the blood volume studies (AUC and AUWO) were always earlier significantly modified (p = 0.04 to p = 0.004). One was never modified: MTT. For the 4 others, it's depending of each study. Conclusions: DCE-US appears as a sensitive tool to evaluate tumoral response to anti-angiogenic drugs. Functional parameters related to the blood volume are more pertinent and represent a key add value to early evaluation of these therapies studies. No significant financial relationships to disclose.
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Affiliation(s)
- N. Lassau
- Institut Gustave Roussy, Villejuif, France
| | | | - M. Chebil
- Institut Gustave Roussy, Villejuif, France
| | - L. Chami
- Institut Gustave Roussy, Villejuif, France
| | | | - A. Roche
- Institut Gustave Roussy, Villejuif, France
| | | | - A. LeCesne
- Institut Gustave Roussy, Villejuif, France
| | - J. Soria
- Institut Gustave Roussy, Villejuif, France
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Chebil M, Soria J, Chami L, Massard C, Benatsou B, Roche A, Armand J, Lassau N. Interest of DCE-US with quantification to demonstrate the VDA effect on vascularization in patients with advanced solid tumors treated with AVE8062. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e14522] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e14522 Background: To determine the optimal time for the assessment of the perfusion in patients receiving AVE8062 (Vascular Disrupting Agent) at different doses combined with a fixed dose of cisplatin and then to correlate these results with the tumor response. Methods: Patients (pts) with advanced solid tumors, treated with AVE8062 (from 11.5 to 30 mg/m2) in combination with 75 mg/m2 cisplatin given every 3 weeks, were prospectively followed by DCE-US. DCE-US was performed before treatment, at 3 time points (0, 6 and 24 hours (h)) on Day 1 of the first (C1) and second cycle (C2), then every 2 cycles thereafter. Contrast uptake was acquired using VRI perfusion software after SonoVue bolus injection. Time-Intensity Curves (TIC) were determined using linear raw- data from CHI-Q (Toshiba) software. Peak Intensity (PI) representing the blood volume was calculated from automatic modeling of TIC. CT-scans performed before treatment and every 2 cycles were reviewed and tumor response assessed (RECIST). Results: A total of 96 DCE-US were performed in 13 pts, 11 of whom had data for both cycle 1 and cycle 2. Among these 11 patients, 8 presented with a dramatic decrease of PI and 3 with an increase of PI. At cycle 1, mean change from baseline in PI was -36% at 6h and -47% at 24h after AVE8062 infusion. Greater decreases were observed at cycle 2, -70% at 6 h and 78% at 24 h. No pt had a clinical response, but by cycle 2, the 8 pts with a decrease in PI at 24h went on to have stable disease as best response; 3 pts with increased PI 24h after their second treatment all had disease progression as best response. Conclusions: The best timing to observe the effect of AVE8062 on the PI seems to be 24 hours after drug administration at cycle 2. These preliminary results suggest that 24 hr PI at cycle 2 could be useful for determining pts who are more likely to have disease progression as best response to AVE8062. If confirmed, the assessment of PI variation may predict the clinical response to AVE8062. Further studies are needed to assess the possible predictive value of DCE-US on duration of progression-free survival. No significant financial relationships to disclose.
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Affiliation(s)
- M. Chebil
- Gustave Roussy Institute, villejuif, France
| | - J. Soria
- Gustave Roussy Institute, villejuif, France
| | - L. Chami
- Gustave Roussy Institute, villejuif, France
| | - C. Massard
- Gustave Roussy Institute, villejuif, France
| | | | - A. Roche
- Gustave Roussy Institute, villejuif, France
| | - J. Armand
- Gustave Roussy Institute, villejuif, France
| | - N. Lassau
- Gustave Roussy Institute, villejuif, France
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Folch J, Cocero M, Chesné P, Alabart J, Domínguez V, Cognié Y, Roche A, Fernández-Árias A, Martí J, Sánchez P, Echegoyen E, Beckers J, Bonastre AS, Vignon X. First birth of an animal from an extinct subspecies (Capra pyrenaica pyrenaica) by cloning. Theriogenology 2009; 71:1026-34. [DOI: 10.1016/j.theriogenology.2008.11.005] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2008] [Revised: 11/14/2008] [Accepted: 11/19/2008] [Indexed: 11/17/2022]
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Lassau N, Brule A, Chami L, Benatsou B, Péronneau P, Roche A. [Evaluation of early response to antiangiogenic treatment with dynamic contrast enhanced ultrasound]. ACTA ACUST UNITED AC 2008; 89:549-55. [PMID: 18535495 DOI: 10.1016/s0221-0363(08)71480-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Early functional imaging evaluation of targeted treatments in oncology is of major importance. Dynamic contrast enhanced US is now recognized as a functional imaging technique able to evaluate new antiangiogenic drugs targeting superficial and deep seated lesions. This evaluation is based on an analysis of the curve of signal intensity over time after injection of the contrast agent. The availability of quantification software allows objective quantification of tumor perfusion parameters from linear raw data, prior to logarithmic signal compression, including maximum intensity of enhancement, mean transit time, time to peak, and wash-in slope coefficient. Dynamic contrast enhanced US, a sensitive, reproducible and readily available technique, allows early prediction of tumor response to treatment based on changes in vascularity, before morphological changes (RECIST) become apparent.
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Affiliation(s)
- N Lassau
- Département d'Imagerie et UPRES EA 40-40, Institut Gustave-Roussy, 39, rue Camille Desmoulins, 94805 Villejuif Cedex.
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Chami L, Lassau Mrs N, Koscielny S, Benatsou B, Roche A, Le Cesne A. Quantitative functional imaging by dynamic contrast enhanced ultrasonography (DCE-US) in patients with GIST treated by thyrosine kinase inhibitor (TKI). J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.10552] [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: 11/20/2022] Open
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Lassau N, Koscielny S, Chami L, Benatsou B, Albiges L, Roche A, Escudier BJ. Dynamic contrast-enhanced ultrasonography (DCE-US) with quantification for the early evaluation of metastatic renal cancer treated with tyrosine kinase inhibitors (TKI). J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.5049] [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: 11/20/2022] Open
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Benatsou B, Lassau N, Chami L, Koscielny S, Roche A, Ducreux M, Malka D, Boige V. Dynamic contrast-enhanced ultrasonography (DCE-US) with quantification for the early evaluation of hepato cellular carcinoma treated by bevacizumab in phase II. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.4588] [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: 11/20/2022] Open
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Martinez-Royo A, Jurado JJ, Smulders JP, Martí JI, Alabart JL, Roche A, Fantova E, Bodin L, Mulsant P, Serrano M, Folch J, Calvo JH. A deletion in the bone morphogenetic protein 15 gene causes sterility and increased prolificacy in Rasa Aragonesa sheep. Anim Genet 2008; 39:294-7. [DOI: 10.1111/j.1365-2052.2008.01707.x] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [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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Roche A, Manning M. A novel use of the Charnley pins in ankle arthrodesis. Ann R Coll Surg Engl 2008; 89:636. [PMID: 18210673 DOI: 10.1308/rcsann.2007.89.6.636a] [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] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- A Roche
- Department of Orthopaedics and Trauma, St Helens andKnowsley NHS Trust, Merseyside, UK.
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Bouaita L, Lassau N, Koscielny S, Chami L, Plantade A, Massard C, Benatsou B, Pellier J, Roche A, Escudier B. 1008 POSTER Dynamic contrast-enhanced ultrasonography (DCE-US) with quantification for the early evaluation of metastatic renal cancer treated with tyrosine kinase inhibitors. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)70603-1] [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: 11/28/2022] Open
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Lassau N, Koscielny S, Chami L, Roche A, Soria J, le Cesne A, Boige V, Armand J. Functional imaging by DCE-US as a surrogate for response in phase I/II of different targeted therapies by DCE-US: Which quantitative parameter and which timing. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.14093] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
14093 Background: The early evaluation of targeted treatments is a major challenge in oncology. Functional approaches based on the measure of tumoral vascularization have been developed using different modalities of imaging (CT, MRI, US). We analyzed the response of tumors in three studies using different targeted treatments with dynamic contrast enhanced-ultrasonography (DCE-US). Seven parameters characterizing tumor perfusion were estimated. The objective of the study was to determine which parameter is the most appropriate and when to use it to confirm earlier the efficacy of treatment. Methods: A total of 157 DCE-US were performed in 30 responding patients (PFS>3 months) selected from 3 following studies (multikinase inhibitor targeting angiogenic-receptor with a cytotoxic, thyrosine-kinase inhibitor targeted angiogenic-receptor and C-kit, VEGF monoclonal antibody). Each DCE-US was performed using contrast agent (Sonovue,Bracco) with perfusion and quantification softwares (Toshiba) from raw linear data. Seven quantitative parameters of perfusion were estimated: peak intensity (PI) and area under the curve (AUC), area under the wash-in (AUWI), area under the wash-out (AUWO), time to PI, mean transit time (MTT), wash-in slope. DCE-US were performed before treatment and after during 5 periods (P) : 1–12 days(P1), 13–22 days(P2), 23–43 days(P3), 44–110 days (P4), > 111 days(P5). Results: 1099 parameters have benefited a statistical analysis. Significant modifications (P<0.05) of 4 parameters (PI, AUC, AUWI, AUWO) were observed for the 3 treatments. The earliest significant modifications were observed during the 3rd period for the first 2 studies and during the 4th period for the 3rd study. Conclusions: DCE-US is a sensitive tool to evaluate early tumor response to targeted drugs. Four functional parameters were significantly modified patients responding to treatment: PI, AUC, AUWI, AUWO. Those modifications appear earlier for the multikinase inhibitor targeting angiogenic receptor and the thyrosine-kinase inhibitor targeted angiogenic receptor and C-kit ( (23–43 d) compared to VEGF monoclonal antibody (44 -110 d). DCE- US represent a key add value to early evaluation of targeted therapies. No significant financial relationships to disclose.
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Affiliation(s)
- N. Lassau
- Institut Gustave Roussy, Villejuif, France
| | | | - L. Chami
- Institut Gustave Roussy, Villejuif, France
| | - A. Roche
- Institut Gustave Roussy, Villejuif, France
| | - J. Soria
- Institut Gustave Roussy, Villejuif, France
| | | | - V. Boige
- Institut Gustave Roussy, Villejuif, France
| | - J. Armand
- Institut Gustave Roussy, Villejuif, France
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Magnon C, Galaup A, Rouffiac V, Opolon P, Connault E, Rosé M, Perricaudet M, Roche A, Germain S, Griscelli F, Lassau N. Erratum: Dynamic assessment of antiangiogenic therapy by monitoring both tumoral vascularization and tissue degeneration. Gene Ther 2007. [DOI: 10.1038/sj.gt.3302901] [Citation(s) in RCA: 14] [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: 11/09/2022]
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Poupon C, Poupon F, Roche A, Cointepas Y, Dubois J, Mangin JF. Real-time MR diffusion tensor and Q-ball imaging using Kalman filtering. Med Image Comput Comput Assist Interv 2007; 10:27-35. [PMID: 18051040 DOI: 10.1007/978-3-540-75757-3_4] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Magnetic resonance diffusion imaging (dMRI) has become an established research tool for the investigation of tissue structure and orientation. In this paper, we present a method for real time processing of diffusion tensor and Q-ball imaging. The basic idea is to use Kalman filtering framework to fit either the linear tensor or Q-ball model. Because the Kalman filter is designed to be an incremental algorithm, it naturally enables updating the model estimate after the acquisition of any new diffusion-weighted volume. Processing diffusion models and maps during ongoing scans provides a new useful tool for clinicians, especially when it is not possible to predict how long a subject may remain still in the magnet.
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Affiliation(s)
- C Poupon
- CEA Neurospin - Bât. 145, 91191 Gif-sur-Yvette, France.
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Bidault F, Faivre S, Kuoch V, Petrow P, Temam S, De Baere T, Janot F, Casiraghi O, Luboinski B, Roche A, Sigal R. Hyperselective intra-arterial preoperative chemotherapy in patients with squamous cell carcinoma of the oral cavity: preliminary results. J Neuroradiol 2006; 33:255-8. [PMID: 17041530 DOI: 10.1016/s0150-9861(06)77271-6] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES To investigate radiological response and findings after Intra Arterial Chemotherapy (IAC) for patients with Squamous Cell Carcinoma (SCC) of the oral cavity. MATERIALS AND METHODS Patients received 1-2 cycles of IAC. Radiological assessment was performed on day 7 and day 21 after each cycle using CT scan and MRI. RESULTS Six patients (median age: 52, ranging 46-60; male/female: 5/1) received 10 cycles (4 patients received 2 cycles). Primary tumors were floor of the mouth (4 patients) and oral tongue (2 patients). TNM classification was T2N0-2b in 3 patients and T4N0-1 in 3 patients. All patients had good locoregional/systemic tolerance and 3 showed clinical objective response (OR). Four patients were evaluable on both CT and MRI, 1 patient on MRI only and 1 patient did not tolerate imaging. Three patients showed OR both on CT and MRI, 1 patient showed stable disease (SD) on CT and OR on MRI and 1 patient showed SD on MRI. Contrast-enhancement of hemiperfused tongue was reported in all evaluable patients. Two patients presented intratumoral necrosis and 5 patients displayed local edema (MRI). One patient had modification of the sternocleidomastoid muscle after IAC. CONCLUSION Radiological modifications were observed in the infused area and correlated well with clinical response. This study is ongoing.
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Affiliation(s)
- F Bidault
- Institut Gustave-Roussy, 39 avenue Camille Desmoulins, 94805 Villejuif Cedex, France.
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Magnon C, Galaup A, Rouffiac V, Opolon P, Connault E, Rosé M, Perricaudet M, Roche A, Germain S, Griscelli F, Lassau N. Dynamic assessment of antiangiogenic therapy by monitoring both tumoral vascularization and tissue degeneration. Gene Ther 2006; 14:108-17. [PMID: 16943854 DOI: 10.1038/sj.gt.3302849] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [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: 11/08/2022]
Abstract
Tumor growth is dependent both on endothelial and tumor cells. The aim of this study was to investigate dynamically whether changes in tumor vasculature implicate tumor tissue degeneration during antiangiogenic therapies. In order to quantify intra-tumor vascularization and necrosis, we have used ultrasound technology. This study has identified essential parameters needed to quantify specifically and sensitively the number of microvessels and the extent of necrosis in xenografted human carcinomas during natural tumor evolution, using contrast-enhanced high-frequency ultrasonography with (HFCDUS) or without (HFUS) color Doppler. We showed that quantification of intra-tumor microvessels between HFCDUS and immunohistochemistry is correlated using an anti-CD31 antibody. Furthermore, quantification of tumor necrosis with HFUS was confirmed by histological examination of hematoxylin-eosin-saffranin-stained sections over the observation period. Subsequently, for the assessment of novel angiogenic inhibitors, HFCDUS and HFUS were used to elucidate the underlying dynamics linking vessel inhibition and tumor eradication. We describe a novel application for HFCDUS/HFUS that constitutes an effective, convenient, and non-invasive method for clinical assessment of angiogenic inhibitors. In conclusion, we showed that tumor cells abruptly became necrotic following an antivascular therapy, whereas untreated tumors were protected from degeneration by a significant blood supply.
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MESH Headings
- Adenoviridae/genetics
- Angiogenesis Inhibitors/genetics
- Angiogenesis Inhibitors/therapeutic use
- Animals
- Antibodies, Monoclonal/genetics
- Antibodies, Monoclonal/therapeutic use
- Antibodies, Monoclonal, Humanized
- Bevacizumab
- Breast Neoplasms/blood supply
- Breast Neoplasms/diagnostic imaging
- Breast Neoplasms/drug therapy
- Cell Line, Tumor
- Genetic Therapy/methods
- Genetic Vectors/administration & dosage
- Genetic Vectors/genetics
- Humans
- Mice
- Mice, Nude
- Necrosis
- Neovascularization, Pathologic
- Random Allocation
- Transduction, Genetic/methods
- Ultrasonography, Doppler, Color
- Ultrasonography, Interventional
- Xenograft Model Antitumor Assays
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Affiliation(s)
- C Magnon
- UMR 8121 Vectorologie et transfert de gènes, Institut Gustave Roussy, Villejuif cedex, France.
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Lamuraglia M, Le Cesne A, Chami L, Bonvalot S, Terrier P, Tursz T, Roche A, Lassau N. Dynamic contrast-enhanced Doppler ultrasound (DCE-US) is a useful radiological assessment to early predict the outcome of patients with gastrointestinal stromal tumors (GIST) treated with imatinib (IM). J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.9539] [Citation(s) in RCA: 8] [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: 11/20/2022] Open
Abstract
9539 Background: DCE-US combined with perfusion software VRI (Vascular Recognition Imaging) and contrast agent injection (Sonovue-Bracco) is a simple and reproductible imaging technique that allows an early and accurate evaluation of IM activity in GIST patients (Lassau et al, ASCO 2004). The objective of this study was to correlate the results observed with DCE-US with the outcome of c-Kit-positive GIST pts treated with IM and to early detect secondary resistance to IM. Methods: 36 pts with advanced GIST were prospectively included in a monocentric imaging trial. DCE-US was performed before IM administration (d0) on days 1, 7, 14, 60, and then every 3 months up to 33 months. The percentage of contrast uptake was evaluated on each tumor target by two radiologists and results were compared to PFS. Results: A total of 371 examinations were performed. At d7, the good responders (GR: 25 pts) and poor responders (PR: 11 pts) presented a statistically significant difference in contrast uptake of DCE-US (p=0.004). There was no significant difference between the 2 groups in tumor volume modification (WHO and RECIST criteria at 2 months). After a median follow-up of 510 days, the median PFS of GR an PR were 602 days and 252 days respectively. A resumption of contrast uptake, before any increase in tumor volume was depicted 6 months before any modification of CT-scan in 7 patients. Conclusion: DCE-US is a new functional non invasive imaging technique that allows: 1) to predict after d7 the PFS 2) an early evaluation of secondary resistance to IM. No significant financial relationships to disclose.
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Affiliation(s)
| | | | - L. Chami
- Institut Gustave-Roussy, Villejuif, France
| | | | - P. Terrier
- Institut Gustave-Roussy, Villejuif, France
| | - T. Tursz
- Institut Gustave-Roussy, Villejuif, France
| | - A. Roche
- Institut Gustave-Roussy, Villejuif, France
| | - N. Lassau
- Institut Gustave-Roussy, Villejuif, France
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Affiliation(s)
- J Roche
- The Low Temperature Research Station and the Biochemical Laboratory, Cambridge
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50
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Affiliation(s)
- J Roche
- The Biochemical Laboratory, University of Marseilles and the Physiological Laboratory, Cambridge
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