1
|
Nguyen C, Montcriol A, Janvier F, Cungi PJ, Esnault P, Mathais Q, Vallet C, Boussen S, Cordier PY, Serpin L, Papazian L, Bordes J. Critical COVID-19 patient evacuation on an amphibious assault ship: feasibility and safety. A case series. BMJ Mil Health 2021; 167:224-228. [PMID: 32764134 PMCID: PMC7411308 DOI: 10.1136/bmjmilitary-2020-001520] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/11/2020] [Accepted: 07/16/2020] [Indexed: 02/06/2023]
Abstract
INTRODUCTION An amphibious assault ship was deployed on 22 March in Corsica to carry out medical evacuation of 12 critical patients infected with COVID-19. The ship has on-board hospital capacity and is the first time that an amphibious assault ship is engaged in this particular condition. The aim is to evaluate the feasibility and safety of prolonged medical evacuation of critical patients with COVID-19. METHODS We included 12 patients with confirmed COVID-19 infection: six ventilated patients with acute respiratory distress syndrome and six non-ventilated patients with hypoxaemia. Transfer on an amphibious assault ship lasted 20 hours. We collected patients' medical records: age, comorbidities, COVID-19 history and diagnosis, ventilation supply and ventilator settings, and blood gas results. We calculated oxygen consumption (OC). RESULTS All patients had a medical history. The median delay from onset of symptoms to hospitalisation was 8 (7-10) days. The median Sequential Organ Failure Assessment score on admission was 3 (2-5). There was no significant increase in oxygen during ship transport and no major respiratory complication. There was no significant increase in arterial oxygen pressure to fractional inspired oxygen ratio among ventilated patients during ship transport. Among ventilated patients, the median calculated OC was 255 L (222-281) by hours and 5270 L (4908-5616) during all ship transport. Among non-ventilated patients, the median calculated OC was 120 L (120-480) by hours and 2400 L (2400-9600) during all ship transport. CONCLUSION The present work contributes to assessing the feasibility and safety condition of critical COVID-19 evacuation on an amphibious assault ship during an extended transport. The ship needs to prepare a plan and a specialised intensive team and conduct patient screening for prolonged interhospital transfers.
Collapse
Affiliation(s)
- Cédric Nguyen
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| | - A Montcriol
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| | - F Janvier
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| | - P-J Cungi
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| | - P Esnault
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| | - Q Mathais
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| | | | - S Boussen
- APHM, Marseille, Provence-Alpes-Côte d'Azur, France
| | - P-Y Cordier
- Anesthesiology and Intensive Care, HIA LAVERAN, Marseille, France
| | - L Serpin
- Emergency, Hospital Centre Ajaccio, Ajaccio, France
| | - L Papazian
- APHM, Marseille, Provence-Alpes-Côte d'Azur, France
| | - J Bordes
- Anesthesiology and Intensive Care, HIA Sainte Anne, Toulon Armees, France
| |
Collapse
|
2
|
Pasquier P, Luft A, Gillard J, Boutonnet M, Vallet C, Pontier JM, Duron-Martinaud S, Dia A, Puyeo L, Debrus F, Prunet B, Beaume S, de Saint Maurice G, Meaudre E, Ficko C, Merens A, Raharisson G, Conte B, Dorandeu F, Canini F, Michel R, Ausset S, Escarment J. How do we fight COVID-19? Military medical actions in the war against the COVID-19 pandemic in France. BMJ Mil Health 2020; 167:269-274. [PMID: 32759228 DOI: 10.1136/bmjmilitary-2020-001569] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [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: 06/20/2020] [Revised: 07/06/2020] [Accepted: 07/06/2020] [Indexed: 01/06/2023]
Abstract
'We are at war', French President Emmanuel Macron said in an address to the nation on 16 March 2020. As part of this national effort, the French Military Medical Service (FMMS) is committed to the fight against COVID-19. This original report aimed to describe and detail actions that the FMMS has carried out in the nationwide fight against the COVID-19 pandemic in France, as well as overseas. Experts in the field reported major actions conducted by the FMMS during the COVID-19 pandemic in France. In just few weeks, the FMMS developed ad hoc medical capabilities to support national health authorities. It additionally developed adaptive, collective en route care via aeromedical and naval units and deployed a military intensive care field hospital. A COVID-19 crisis cell coordinated the French Armed Forces health management. The French Military Centre for Epidemiology and Public Health provided all information needed to guide the decision-making process. Medical centres of the French Armed Forces organised the primary care for military patients, with the widespread use of telemedicine. The Paris Fire Brigade and the Marseille Navy Fire Battalion emergency departments ensured prehospital management of patients with COVID-19. The eight French military training hospitals cooperated with civilian regional health agencies. The French military medical supply chain supported all military medical treatment facilities in France as well as overseas, coping with a growing shortage of medical equipment. The French Armed Forces Biomedical Research Institute performed diagnostics, engaged in multiple research projects, updated the review of the scientific literature on COVID-19 daily and provided expert recommendations on biosafety. Finally, even students of the French military medical academy volunteered to participate in the fight against the COVID-19 pandemic. In conclusion, in an unprecedented medical crisis, the FMMS engaged multiple innovative and adaptive actions, which are still ongoing, in the fight against COVID-19. The collaboration between military and civilian healthcare systems reinforced the shared objective to achieve the goal of 'saving the greatest number'.
Collapse
Affiliation(s)
- Pierre Pasquier
- Percy Military Training Hospital, French Military Health Service, Clamart, France .,Ecole du Val-de-Grâce French Military Medical Academy, Paris, France
| | - A Luft
- Direction Centrale du Service de Santé des Armées, Paris, France
| | - J Gillard
- Direction Centrale du Service de Santé des Armées, Paris, France
| | - M Boutonnet
- Percy Military Training Hospital, French Military Health Service, Clamart, France.,Ecole du Val-de-Grâce French Military Medical Academy, Paris, France
| | - C Vallet
- Service Médical de la Force d'Action Navale, French Military Health Service, Toulon, France
| | - J-M Pontier
- Cephismer, Centre d'Expertise Plongée pour la Marine Nationale, French Military Health Service, Toulon, France
| | | | - A Dia
- Centre d'épidémiologie et de Santé Publique des Armées, French Military Health Service, Marseille, France
| | - L Puyeo
- Direction de la Médecine des forces, French Military Health Service, Tours, France
| | - F Debrus
- Direction de la Médecine des forces, French Military Health Service, Tours, France
| | - B Prunet
- Ecole du Val-de-Grâce French Military Medical Academy, Paris, France.,Emergency Department, Brigade de Sapeurs-Pompiers de Paris, Paris, France
| | - S Beaume
- Bataillon des Marins-Pompiers de Marseille, French Military Health Service, Marseille, France
| | - G de Saint Maurice
- Ecole du Val-de-Grâce French Military Medical Academy, Paris, France.,Legouest Military Training Hospital, French Military Health Service, Metz, France
| | - E Meaudre
- Ecole du Val-de-Grâce French Military Medical Academy, Paris, France.,Sainte-Anne Military Training Hospital, French Military Health Service, Toulon, France
| | - C Ficko
- Ecole du Val-de-Grâce French Military Medical Academy, Paris, France.,Bégin Military Training Hospital, French Military Health Service, Saint-Mandé, France
| | - A Merens
- Ecole du Val-de-Grâce French Military Medical Academy, Paris, France.,Bégin Military Training Hospital, French Military Health Service, Saint-Mandé, France
| | - G Raharisson
- Direction Centrale du Service de Santé des Armées, Paris, France
| | - B Conte
- Direction des approvisionnements en produits de santé des armées, French Military Health Service, Orléans, France
| | - F Dorandeu
- Ecole du Val-de-Grâce French Military Medical Academy, Paris, France.,Institut de Recherche Biomédicale des Armées, French Military Health Service, Brétigny-sur-Orge, France
| | - F Canini
- Ecole du Val-de-Grâce French Military Medical Academy, Paris, France.,Institut de Recherche Biomédicale des Armées, French Military Health Service, Brétigny-sur-Orge, France
| | - R Michel
- Ecole du Val-de-Grâce French Military Medical Academy, Paris, France.,Écoles Militaires de Santé, French Military Health Service, Lyon-Bron, France
| | - S Ausset
- Ecole du Val-de-Grâce French Military Medical Academy, Paris, France.,Écoles Militaires de Santé, French Military Health Service, Lyon-Bron, France
| | - J Escarment
- Ecole du Val-de-Grâce French Military Medical Academy, Paris, France.,French Military Health Service, Paris, France
| |
Collapse
|
3
|
Brouard J, Vallet C, Marie J, Faucon C. Les séquelles de virose en pneumopédiatrie. Perfectionnement en Pédiatrie 2020. [PMCID: PMC7170799 DOI: 10.1016/j.perped.2020.03.007] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
L’immaturité du système immunitaire explique une part de la vulnérabilité aux pathogènes respiratoires durant l’enfance. Une infection virale respiratoire aiguë chez l’enfant peut être secondaire à 1 des 200 virus génétiquement différents et identifiables par les outils moléculaires. Les cellules ciliées distribuées tout au long de l’épithélium des voies respiratoires sont la cible des virus. Les études épidémiologiques rapportent une diminution de la fonction respiratoire chez l’adulte indépendamment de facteurs confondants lorsqu’une pneumonie est survenue avant l’âge de 2 voire 7 ans. Cette réduction de la fonction respiratoire est le reflet probable de l’atteinte initiale malgré les processus de réparation (altération potentielle de croissance pulmonaire) et à l’âge adulte d’une accélération du déclin physiologique des capacités ventilatoires. Les études portant sur l’origine des dilatations des bronches retrouvent des antécédents de pneumopathies infectieuses plus d’une fois sur deux. Les infections à adénovirus sont particulièrement en cause. Une bronchiolite obstructive post-infectieuse peut survenir même chez l’enfant immunocompétent ; le tableau initial est très souvent pseudo-grippal, puis est marqué par une dissociation entre des signes fonctionnels importants et un examen clinique pauvre. L’évolution au long cours est peu prévisible mais peut conduire à l’insuffisance respiratoire chronique létale. Les pneumopathies infiltratives diffuses sont caractérisées par une infiltration diffuse de la charpente conjonctivale du poumon par des cellules inflammatoires et de la fibrose. Le rôle des virus dans son développement a été évoqué en raison de la présence d’inclusions cellulaires évoquant des particules virales dans le poumon d’enfants atteints. Enfin la plupart des études épidémiologiques soulignent l’association entre une symptomatologie sifflante secondaire à une agression virale durant l’enfance et le risque ultérieur de développement d’un asthme.
Collapse
|
4
|
Westmeier D, Hahlbrock A, Reinhardt C, Fröhlich-Nowoisky J, Wessler S, Vallet C, Pöschl U, Knauer SK, Stauber RH. Nanomaterial–microbe cross-talk: physicochemical principles and (patho)biological consequences. Chem Soc Rev 2018; 47:5312-5337. [DOI: 10.1039/c6cs00691d] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
NPs’ characteristics impact their spontaneous binding to microbes, which may affect the (patho)biological identity of both NP and microbes.
Collapse
Affiliation(s)
- D. Westmeier
- Department of Nanobiomedicine/ENT
- University Medical Center of Mainz
- 55101 Mainz
- Germany
| | - A. Hahlbrock
- Department of Nanobiomedicine/ENT
- University Medical Center of Mainz
- 55101 Mainz
- Germany
| | - C. Reinhardt
- Center for Thrombosis and Hemostasis
- University Medical Center Mainz
- 55101 Mainz
- Germany
| | - J. Fröhlich-Nowoisky
- Multiphase Chemistry Department
- Max Planck Institute for Chemistry
- 55128 Mainz
- Germany
| | - S. Wessler
- Department of Molecular Biology
- Paris-Lodron University of Salzburg
- A-5020 Salzburg
- Austria
| | - C. Vallet
- Institute for Molecular Biology
- CENIDE
- University Duisburg-Essen
- 45117 Essen
- Germany
| | - U. Pöschl
- Multiphase Chemistry Department
- Max Planck Institute for Chemistry
- 55128 Mainz
- Germany
| | - S. K. Knauer
- Institute for Molecular Biology
- CENIDE
- University Duisburg-Essen
- 45117 Essen
- Germany
| | - R. H. Stauber
- Department of Nanobiomedicine/ENT
- University Medical Center of Mainz
- 55101 Mainz
- Germany
| |
Collapse
|
5
|
Vallet C, Lefeuvre S, Bouzillé G, Deneuville E, Pladys P. Intérêt prédictif du score de Wang sur la durée d’oxygénothérapie dans la bronchiolite du nourrisson. Arch Pediatr 2017. [DOI: 10.1016/j.arcped.2017.02.018] [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: 10/19/2022]
|
6
|
Secq A, Dacher J, Richard V, Brunel V, Vallet C, Eltchaninoff H, Bauer F. A Novel myocardial fibrosis risk score in Heart Failure with preserved ejection fraction. Archives of Cardiovascular Diseases Supplements 2017. [DOI: 10.1016/s1878-6480(17)30422-6] [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] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
7
|
Secq A, Dacher J, Richard V, Brunel V, Vallet C, Eltchaninoff H, Bauer F. A novel myocardial fibrosis risk score in heart failure with preserved ejection fraction. Archives of Cardiovascular Diseases Supplements 2017. [DOI: 10.1016/s1878-6480(17)30148-9] [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: 10/19/2022]
|
8
|
Breil R, Kurtz B, Bories MC, Vallet C, Jan M, Eltchaninoff H. Usefulness and reliability of POCKET ultrasound in assessing cardiac function in patients hospitalized for heart failure in a cardiology department. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5088] [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: 11/13/2022] Open
|
9
|
Auquier N, Stepowski D, Vallet C, D'Here B, Eltchaninoff H, Bauer F. Prognostic significance of tricuspid regurgitation peak velocity in patients with heart failure and preserved ejection fraction. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p2465] [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: 11/14/2022] Open
|
10
|
Vallet C, Escudier E, Roudot-Thoraval F, Blanchon S, Fauroux B, Beydon N, Boulé M, Vojtek AM, Amselem S, Clément A, Tamalet A. Primary ciliary dyskinesia presentation in 60 children according to ciliary ultrastructure. Eur J Pediatr 2013; 172:1053-60. [PMID: 23571820 DOI: 10.1007/s00431-013-1996-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [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: 12/18/2012] [Accepted: 03/20/2013] [Indexed: 12/27/2022]
Abstract
Primary ciliary dyskinesia (PCD) is an inherited disease related to ciliary dysfunction, with heterogeneity in clinical presentation and in ciliary ultrastructural defect. Our study intended to determine if there are phenotypic differences in patients with PCD based on ciliary ultrastructural abnormality. In this retrospective study carried out among 60 children with a definitive diagnosis of PCD, we analyzed clinical, radiological, and functional features at diagnosis and at last recorded visit, according to cilia defect (absence of dynein arms: DAD group, n = 36; abnormalities of the central complex: CCA group, n = 24). Onset of respiratory symptoms occurred later in the CCA than in the DAD group (9.5 versus 0.5 months, p = 0.03). Situs inversus was only observed in the DAD group, while respiratory disease in siblings were more frequent in the CCA group (p = 0.003). At diagnosis, clinical presentation was more severe in the CCA group: frequency of respiratory tract infections (p = 0.008), rhinosinusitis (p = 0.02), otitis complications (p = 0.0001), bilateral bronchiectasis (p = 0.04), and number of hypoxemic patients (p = 0.03). Pulmonary function remained stable in both groups, but outcome was better in the CCA than in the DAD group: less antibiotic therapy and hypoxemic patients (p = 0.004). In conclusion, our results underlined the relationship between the severity of clinical presentation and the ultrastructural ciliary defect.
Collapse
Affiliation(s)
- Christelle Vallet
- Centre de reference des maladies respiratoires rares, Service de pneumologie pediatrique, Hopital Armand-Trousseau and INSERM UMR S-938, AP-HP, 75571 Paris Cedex 12, France
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Bajolet O, Ciocan D, Vallet C, de Champs C, Vernet-Garnier V, Guillard T, Brasme L, Thiefin G, Cadiot G, Bureau-Chalot F. Gastroscopy-associated transmission of extended-spectrum beta-lactamase-producing Pseudomonas aeruginosa. J Hosp Infect 2013; 83:341-3. [DOI: 10.1016/j.jhin.2012.10.016] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Accepted: 10/24/2012] [Indexed: 10/27/2022]
|
12
|
Kurtz B, Breil R, Bories MC, Vallet C, Jan M, Eltchaninoff H. Usefulness and reliability of pocket ultrasound in assessing cardiac function in patients hospitalized for heart failure in a cardiology department. Arch Cardiovasc Dis 2013. [DOI: 10.1016/j.acvd.2013.03.030] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
13
|
Karouby D, Vallet C, Bocquet F, Paubel P. DSL-005 Comparative Study of the Cost of Erythropoietic Factors, Original Medicines and Biosimilars in French Care Facilities. Eur J Hosp Pharm 2013. [DOI: 10.1136/ejhpharm-2013-000276.248] [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: 11/04/2022] Open
|
14
|
Vallet C, Beaussier H, Bruandet M, Zuber M, Bezie Y, Tersen I. CPC-049 Evaluation of a Standardised Therapeutic Education Training Session For Hypertensive Stroke Patients. Eur J Hosp Pharm 2013. [DOI: 10.1136/ejhpharm-2013-000276.506] [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] Open
|
15
|
Otsuka T, Suzuki M, Yoshikawa H, Hashimoto G, Ishida T, Osaki T, Itou N, Ono T, Yamamoto M, Sugi K, Zaidi A, Gati S, Sheikh N, Ghani S, Howes R, Sharma R, Sharma S, Esposito R, Schiano Lomoriello V, Santoro A, Raia R, Ippolito R, De Palma D, Galderisi M, Merino Sierra B, Bijnens B, Pare C, Azqueta M, Vidal B, Hernandez G, Yanguas X, Mont L, Brugada J, Sitges M, Mykland J, Skjorten I, Humerfelt S, Hansteen V, Melsom M, Hisdal J, Steine K, Elnoamany MF, Dawood A, Khalil T, Elhabeeby M, Smith B, Grapsa J, Dawson D, Coulter T, Rendon A, Gorissen W, Nihoyannopoulos P, Satendra M, Sargento L, Sousa C, Lousada N, Palma Reis R, Gual Capllonch F, Teis A, Lopez Ayerbe J, Ferrer E, Vallejo N, Gomez Denia E, Bayes Genis A, Landolff Q, Vallet C, Dominique S, Viacroze C, Kurtz B, Eltchaninoff H, Bauer F. Moderated Poster Sessions 3: Right ventricle in normal conditions and under pressure * Friday 9 December 2011, 08:30-12:30 * Location: Moderated Poster Area. European Journal of Echocardiography 2011. [DOI: 10.1093/ejechocard/jer213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
16
|
Gendrel D, Lecarpentier T, Menager C, Harroche A, LeGuillou S, Vallet C, Chalumeau M, Raymond J. [Pneumococci isolated from vaccinated children with pneumonia]. Arch Pediatr 2011; 18:518-21. [PMID: 21458975 DOI: 10.1016/j.arcped.2011.02.014] [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] [Received: 11/06/2010] [Revised: 02/03/2011] [Accepted: 02/20/2011] [Indexed: 11/28/2022]
Abstract
Among 76 children fully vaccinated with 7-valent conjugate vaccine and subsequently hospitalized from 2006 to 2009 for community-acquired pneumonia, isolated or with empyema or pleuritis, 10 had confirmed pneumococcal infections. All pneumococci isolated with blood or pleural culture were non vaccine serotypes (1, 5, 7F, and 19A). The proportion of pneumococcal pneumonias was similar to that in two series from the same hospital before the vaccine era. These data show that the 13-valent conjugate vaccine could be useful in prevention of community-acquired pneumonia and that bacteriologic survey of community-acquired pneumonia remains necessary.
Collapse
Affiliation(s)
- D Gendrel
- Service de pédiatrie, hôpital Necker, université Paris Descartes, 149, rue de Sèvres, 75015 Paris, France
| | - T Lecarpentier
- Service de pédiatrie, hôpital Necker, université Paris Descartes, 149, rue de Sèvres, 75015 Paris, France
| | - C Menager
- Service de pédiatrie, hôpital Necker, université Paris Descartes, 149, rue de Sèvres, 75015 Paris, France
| | - A Harroche
- Service de pédiatrie, hôpital Necker, université Paris Descartes, 149, rue de Sèvres, 75015 Paris, France
| | - S LeGuillou
- Service de pédiatrie, hôpital Necker, université Paris Descartes, 149, rue de Sèvres, 75015 Paris, France
| | - C Vallet
- Service de pédiatrie, hôpital Necker, université Paris Descartes, 149, rue de Sèvres, 75015 Paris, France
| | - M Chalumeau
- Service de pédiatrie, hôpital Necker, université Paris Descartes, 149, rue de Sèvres, 75015 Paris, France
| | - J Raymond
- Service de bactériologie, hôpital Cochin, université Paris Descartes, 75006 Paris, France
| |
Collapse
|
17
|
Lecarpentier T, Benezit A, Marostica A, Brasme JF, Vallet C, Chalumeau M, Lebon P, Kaplon J, de Rougemont A, Pothier P, Gendrel D. Épidémies parisiennes de gastro-entérites à norovirus. Arch Pediatr 2010; 17:1522-6. [DOI: 10.1016/j.arcped.2010.08.005] [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: 02/21/2010] [Revised: 07/05/2010] [Accepted: 08/06/2010] [Indexed: 12/21/2022]
|
18
|
Lupinacci RM, Vallet C, Parc Y, Chafai N, Tiret E. Treatment of fistula-in-ano with the Surgisis(®) AFP(TM) anal fistula plug. ACTA ACUST UNITED AC 2010; 34:549-53. [PMID: 20822873 DOI: 10.1016/j.gcb.2009.06.021] [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] [Received: 03/02/2009] [Revised: 06/11/2009] [Accepted: 06/14/2009] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Closure of the fistula tract with an anal fistula plug has been reported to provide success rates as high as 80%. The purpose of this study was to evaluate our results with this new method. METHOD From June 2006 to September 2007, an anal fistula plug was used for the treatment of high transsphincteric fistulas. Success was defined as no residual leakage or abscess formation and closure of the external opening. RESULTS Fifteen patients (seven women), median age 46 years (range 32-58 years), were included in the study. Three had Crohn's disease, three had an anovulvar fistula and seven had undergone previous surgical-repair attempts. Three patients expelled the prosthesis on postoperative day 2, 5 and 7, respectively, and a second plug placement was followed by expulsion again. One patient developed an abscess that was noted on postoperative day 4. The fistula tract healed in 6/15 patients (40%) after 3 months and in 8/15 (53.3%) after 7 months. The success rate in Crohn's disease was 33%. No significant difference was found between patients with or without previous surgical repair. CONCLUSION In our experience, this simple technique provided success rates of 40% at 3 months and 53% at 7 months.
Collapse
Affiliation(s)
- R M Lupinacci
- Service de chirurgie générale et digestive, hôpital Saint-Antoine, AP-HP, université Pierre-et-Marie-Curie, Paris-VI, 184 rue du Faubourg-Saint-Antoine, Paris cedex 12, France
| | | | | | | | | |
Collapse
|
19
|
de Sant’Anna M, Vallet C, Kadouche R, Stefanucci D, Tomascakova A, Morat B, Rigaud AS. Computer accessibility for individuals suffering from mild to moderate Alzheimer's disease. Eur Geriatr Med 2010. [DOI: 10.1016/j.eurger.2010.04.003] [Citation(s) in RCA: 2] [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: 11/26/2022]
|
20
|
Vallet C, Parc Y, Lupinacci R, Shields C, Parc R, Tiret E. Sacral nerve stimulation for faecal incontinence: response rate, satisfaction and the value of preoperative investigation in patient selection. Colorectal Dis 2010; 12:247-53. [PMID: 19508523 DOI: 10.1111/j.1463-1318.2009.01899.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [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: 12/17/2022]
Abstract
OBJECTIVE Before undergoing sacral nerve stimulation (SNS) for faecal incontinence (FI), patients are investigated with morphologic, dynamic and electrophysiologic tests. The purpose of our study was to evaluate their value in the selection of patients who may benefit most from neuromodulation. METHOD If temporary stimulation resulted in a good objective response, a permanent neuromodulator was implanted. Patients were reviewed at 3 months and then at 6 monthly intervals. Asked by telephone, patient's satisfaction was described as good, satisfactory or poor. RESULTS Forty-five consecutive patients (41 females, median age 59 years) with FI (Wexner 16.1 +/- 2.9) underwent SNS. Temporary stimulation was successful in 32 (71)% patients. At a median follow-up of 33 months, the neuromodulator remained in place in 25 (55%) patients, two do whom switched it off, leaving 23 (51%) with a functioning neuromodulator. There was no statistically significant difference between the characteristics (including manometry, ultrasound and electrophysiology) of patients undergoing implantation (n = 32) or not (n = 13) and those with or without a functioning stimulator (n = 23: n = 13). In the 23 patients with a functioning stimulator the result was good in 12, satisfactory in five and poor in six. There was no statistically significant difference in the patient characteristics between those with a good result (n = 12) and the remainder (n = 32). CONCLUSION The findings suggest that investigation for FI does not facilitate patient selection for SNS and cannot be used to predict outcome.
Collapse
Affiliation(s)
- C Vallet
- Department of Digestive Surgery, Hôpital Saint-Antoine (AP/HP), Université Pierre et Marie Curie, Paris, France
| | | | | | | | | | | |
Collapse
|
21
|
Vallet C, Pons-Catalano C, Mandelcwajg A, Wang A, Raymond J, Lebon P, Gendrel D. Human bocavirus: a cause of severe asthma exacerbation in children. J Pediatr 2009; 155:286-8. [PMID: 19619752 DOI: 10.1016/j.jpeds.2009.01.069] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2008] [Revised: 10/31/2008] [Accepted: 01/23/2009] [Indexed: 10/20/2022]
Abstract
Real-time polymerase chain reaction for human bocavirus (HBoV) was performed in nasopharyngeal aspirate specimens from 166 children over 2 years of age hospitalized for severe asthma exacerbation. Whereas HBoV was detected in 21 of these children (13%), it was found in only 1 of 50 ambulatory children with stable asthma (2%), suggesting a major role of HBoV in acute exacerbations in asthmatic children.
Collapse
Affiliation(s)
- Christelle Vallet
- Pediatric Unit, Paris Descartes University and AP-HP Saint Vincent de Paul-Cochin Hospital, Paris, France
| | | | | | | | | | | | | |
Collapse
|
22
|
Abstract
Le bocavirus humain (HboV) a été récemment cloné lors d’un criblage systématique de prélèvements nasopharyngés d’enfants hospitalisés pour infections respiratoires. Ce virus, du genre bocavirus, de la famille des Parvoviridae, a été détecté par son ADN, lors de différentes études, dans environ 5 % des prélèvements nasopharyngés. Il serait responsable d’infections respiratoires hautes et basses chez les jeunes enfant de moins de cinq ans avec un pic hivernal. Son rôle pathogène dans ces infections reste encore à déterminer, compte tenu d’un taux élevé de co-infections virales. Des études supplémentaires permettront de préciser le rôle de ce virus, possiblement systémique, dans d’autres affections.
Collapse
Affiliation(s)
- C Catalano-Pons
- Service de pédiatrie générale, hôpital Saint-Vincent-de-Paul-Cochin, 82, avenue Denfert-Rochereau, 75014 Paris, France; Université Paris-Descartes, Paris, France
| | | | | | | |
Collapse
|
23
|
Corvol H, Boelle PY, Brouard J, Knauer N, Chadelat K, Henrion-Caude A, Flamant C, Muselet-Charlier C, Boule M, Fauroux B, Vallet C, Feingold J, Ratjen F, Grasemann H, Clement A. Genetic variations in inflammatory mediators influence lung disease progression in cystic fibrosis. Pediatr Pulmonol 2008; 43:1224-32. [PMID: 19009622 DOI: 10.1002/ppul.20935] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [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: 11/09/2022]
Abstract
The clinical course of cystic fibrosis (CF) varies considerably among patients carrying the same CF-causing gene mutation. Additional genetic modifiers may contribute to this variability. As airway inflammation is a key component of CF pathophysiology, we investigated whether major cytokine variants represent such modifiers in young CF patients. We tested 13 polymorphisms in 8 genes that play a key role in the inflammatory response: tumor necrosis factor, lymphotoxin alpha, interleukin (IL) 1B, IL1 receptor antagonist, IL6, IL8, IL10 and transforming growth factor beta 1 (TGFB1), for an association with lung disease progression and nutritional status in 329 CF patients. Variants in the TGFB1 gene at position +869T/C demonstrated a significant association with lung function decline. A less pronounced rate of decline in forced expiratory volume in 1 sec (FEV(1)) and forced vital capacity (FVC) were observed in patients heterozygous for TGFB1 +869 (+869CT), when compared to patients carrying either TGFB1 +869TT or +869CC genotypes. These findings support the concept that TGFB1 gene variants appear to be important genetic modifiers of lung disease progression in CF.
Collapse
Affiliation(s)
- Harriet Corvol
- AP-HP, Hôpital Trousseau, Pediatric Pulmonary Department, Paris, France.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Beans C, Hecq JH, Koubbi P, Vallet C, Wright S, Goffart A. A study of the diatom-dominated microplankton summer assemblages in coastal waters from Terre Adélie to the Mertz Glacier, East Antarctica (139°E–145°E). Polar Biol 2008. [DOI: 10.1007/s00300-008-0452-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
25
|
Corvol H, Boelle P, Brouard J, Knauer N, Henrion-Caude A, Chadelat K, Flamant C, Charlier C, Boule M, Fauroux B, Vallet C, Feingold J, Ratjen F, Grasemann H, Clement A. Cytokine polymorphisms influence lung disease progression in cystic fibrosis. J Cyst Fibros 2008. [DOI: 10.1016/s1569-1993(08)60012-0] [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: 11/24/2022]
|
26
|
Pezzetta E, Vallet C, Christodoulou M, Ris HB. [Hypertrophic osteoarthropathy of the lung and lung cancer: treatment by resection of the primary tumor]. Rev Pneumol Clin 2006; 62:255-7. [PMID: 17075552 DOI: 10.1016/s0761-8417(06)75451-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
|
27
|
Brouard J, Corvol H, Boelle P, Knauer N, Vallet C, Henrion-Caude A, Boule M, Fauroux B, Ratjen F, Grasemann H, Clément A. 19 Influence of tumor necrosis factor gene polymorphisms on lung disease progression in children with Cystic Fibrosis. J Cyst Fibros 2006. [DOI: 10.1016/s1569-1993(06)80020-2] [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]
|
28
|
Dauvin JC, Desroy N, Janson AL, Vallet C, Duhamel S. Recent changes in estuarine benthic and suprabenthic communities resulting from the development of harbour infrastructure. Mar Pollut Bull 2006; 53:80-90. [PMID: 16249007 DOI: 10.1016/j.marpolbul.2005.09.020] [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: 05/05/2023]
Abstract
Using a Before/During/After sampling protocol, the effects of the Le Havre harbour extension, which was started at the end of 2001, on the macrobenthic and suprabenthic communities in the eastern Bay of Seine (English Channel) were examined. As the construction phase has not yet been completed, the results presented here reflect only the data collected before and during the operations (September 2000 and 2002 for benthos sampling and March 2001, September 2001, October 2002 and March 2003 for suprabenthos sampling). Although bio-sedimentary changes did occur at the mouth of the Seine river, an analysis of benthic assemblages reveals that the dredging and construction operations do not seem to have influenced assemblage structure or the spatial distribution of organisms. Comparisons of the suprabenthic assemblages at each sampling date indicate that seasonal dynamics was mainly responsible for determining species distribution. We conclude that, 1 year into the harbour management plan, the observed changes in benthic and suprabenthic assemblage abundance do not exceed the range of spatial variability that exists naturally in the Seine estuary. Despite this compensatory actions designed to protect the aquatic habitats and to preserve a sustainable and healthy ecosystem have been added to the infrastructure development plan.
Collapse
Affiliation(s)
- J C Dauvin
- Station Marine de Wimereux, Université des Sciences et Technologies de Lille, CNRS-UMR-8013 ELICO, BP 80, 62930 Wimereux, France.
| | | | | | | | | |
Collapse
|
29
|
Abstract
Cystic fibrosis is the most common lethal autosomal recessive disease among the Caucasian population. It is caused by defects in the CFTR gene (Cystic Fibrosis Transmembrane Conductance Regulator). Although over 1600 disease-causing mutations in the CFTR gene have been described, the highly variable disease phenotype in cystic fibrosis cannot be explained on the basis of this gene alone. Both the environment and other non-CFTR genes are likely to be important. The increased understanding of pathophysiological processes in the cystic fibrosis lung has led to several studies on genes in these pathways. One of the major aims of such studies is to produce targets for novel drug developments.
Collapse
Affiliation(s)
- H Corvol
- Service de pneumologie pédiatrique, hôpital Armand-Trousseau, Assistance publique-Hôpitaux de Paris, 26, avenue du Docteur-A.-Netter, 75012 Paris, France.
| | | | | | | | | |
Collapse
|
30
|
Vallet C, Corvol H, Boelle P, Brouard J, Knauer N, Henrion-Caude A, Chadelat K, Boule M, Fauroux B, Ratjen F, Grasemann H, Clement A. Influence des polymorphismes du gène TGF- ɛ1 sur la fonction pulmonaire des patients atteints de mucoviscidose. Rev Mal Respir 2005. [DOI: 10.1016/s0761-8425(05)85762-6] [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] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
31
|
Vallet C, Saucy F, Haller C, Meier P, Rafoul W, Corpataux JM. Vacuum-assisted Conservative Treatment for the Management and Salvage of Exposed Prosthetic Hemodialysis Access. Eur J Vasc Endovasc Surg 2004; 28:397-9. [PMID: 15350562 DOI: 10.1016/j.ejvs.2004.05.011] [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] [Subscribe] [Scholar Register] [Accepted: 05/25/2004] [Indexed: 11/19/2022]
Abstract
Recurrent puncture of dialysis grafts can cause erosion and ulcer formation in the skin over the prosthetic material. Contamination of the wound can lead to infection of the graft, and the necessity to remove it. We describe four cases where agressive treatment with debridement, intravenous antibiotics and negative pressure therapy allowed prosthesis salvage without discontinuation of hemodialysis.
Collapse
Affiliation(s)
- C Vallet
- Department of Thoracic and Vascular Surgery, University Hospital, Lausanne, Switzerland
| | | | | | | | | | | |
Collapse
|
32
|
Abstract
INTRODUCTION Lung Volume reduction surgery (LVRS) is a recognized therapeutic option for patients presenting with severe and disabling pulmonary emphysema. Case selection is based upon clinical, morphological and functional criteria. STATE OF THE ART LVRS has shown promising results, with improvements in exercise capacity, pulmonary function and quality of life, in selected patients with severe and disabling emphysema. A variety of surgical techniques have been described. The procedure may be unilateral or bilateral, through a sternotomy or by a video-assisted thoracoscopic (VATS) technique. The controversial aspects of the surgical technique will be analysed and discussed in the following review. PERSPECTIVES A bilateral approach clearly offers a better functional improvement when compared to a unilateral procedure, however, the postoperative functional decline appears greater and more rapid after a bilateral procedure. A unilateral approach, with often less postoperative morbidity, allows the option to perform a future contra-lateral procedure in the event of further clinical or functional deterioration. CONCLUSIONS In selected cases LVRS is an effective treatment for severe pulmonary emphysema. Different surgical techniques have been described. Nowadays VATS is considered to be the technique of choice, with the option to carry out a future unilateral or bilateral procedure.
Collapse
Affiliation(s)
- E Pezzetta
- Service de Chirurgie Thoracique et Vasculaire, CHUV, Lausanne, Suisse.
| | | | | | | | | |
Collapse
|
33
|
Pons-Catalano C, Vallet C, Lorrot M, Soulier M, Moulin F, Marc E, Chalumeau M, Raymond J, Lebon P, Gendrel D. Pneumonies communautaires et infection grippale. Arch Pediatr 2003; 10:1056-60. [PMID: 14643533 DOI: 10.1016/j.arcped.2003.09.032] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
UNLABELLED Children without chronic or serious medical conditions are at increased risk for hospitalization during influenza seasons, mainly with respiratory tract infections. But influenza virus infections frequently remain undiagnosed, even in hospitalized patients. We prospectively studied the rate of concomitant and preceding influenza infections in children hospitalized with a community acquired pneumonia (CAP). POPULATION AND METHODS All 1-15-year-old children with CAP requiring hospitalization between 1st April 2000 and 2002 had nasopharyngeal aspirate for viruses, immunofluorescence and serologies for respiratory pathogens. The peak of influenza IgG measured by complement fixation (CF) is transient, and a titer of 1/64 or more indicates an acute influenza infection in the preceding weeks. Children with chronic disease were excluded and a control group of patients from outpatient clinic was measured. RESULTS Among 33 previously healthy children (age 4.9 years, range 1.2-14 years), 8 had a pneumococcal pneumonia, 10 a pneumonia caused by Mycoplasma pneumoniae (MP), 1 by Chlamydia pneumonia, and 8 of unknown origin. In six patients immunofluorescence was positive: Respiratory Syncitial Virus, 2, Adenovirus, 1 and Influenza A, 3 (including a patient with concomitant MP infection). Thirteen of the 33 children (39.4%) had evidence of a recent influenza A infection with CF ab > or = 1/64: with pneumococcal pneumonia, 5/10 with MP pneumonia, 3/8 with unknown origin pneumonia, 9/13 of these previous influenza infections being clinically inapparent. Only 1/30 children of control group (3.3%) had CF ab > or = 1/64. CONCLUSION In this study, influenza infection is the direct cause of CAP of children in 12% of cases. In other children with CAP, 39.4% of patients had an influenza infection in the preceding weeks which leads to secondary infection caused by Streptococcus pneumoniae or by MP or other pathogens.
Collapse
Affiliation(s)
- C Pons-Catalano
- Service de pédiatrie générale, hôpital Saint-Vincent-de-Paul, AP-HP, 82, avenue Denfert-Rochereau, 75014 Paris, France
| | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Kümmerle A, Krueger T, Dusmet M, Vallet C, Pan Y, Ris HB, Decosterd LA. A validated assay for measuring doxorubicin in biological fluids and tissues in an isolated lung perfusion model: matrix effect and heparin interference strongly influence doxorubicin measurements. J Pharm Biomed Anal 2003; 33:475-94. [PMID: 14550866 DOI: 10.1016/s0731-7085(03)00300-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [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: 11/28/2022]
Abstract
Doxorubicin is an antineoplasic agent active against sarcoma pulmonary metastasis, but its clinical use is hampered by its myelotoxicity and its cumulative cardiotoxicity, when administered systemically. This limitation may be circumvented using the isolated lung perfusion (ILP) approach, wherein a therapeutic agent is infused locoregionally after vascular isolation of the lung. The influence of the mode of infusion (anterograde (AG): through the pulmonary artery (PA); retrograde (RG): through the pulmonary vein (PV)) on doxorubicin pharmacokinetics and lung distribution was unknown. Therefore, a simple, rapid and sensitive high-performance liquid chromatography method has been developed to quantify doxorubicin in four different biological matrices (infusion effluent, serum, tissues with low or high levels of doxorubicin). The related compound daunorubicin was used as internal standard (I.S.). Following a single-step protein precipitation of 500 microl samples with 250 microl acetone and 50 microl zinc sulfate 70% aqueous solution, the obtained supernatant was evaporated to dryness at 60 degrees C for exactly 45 min under a stream of nitrogen and the solid residue was solubilized in 200 microl of purified water. A 100 microl-volume was subjected to HPLC analysis onto a Nucleosil 100-5 microm C18 AB column equipped with a guard column (Nucleosil 100-5 microm C(6)H(5) (phenyl) end-capped) using a gradient elution of acetonitrile and 1-heptanesulfonic acid 0.2% pH 4: 15/85 at 0 min-->50/50 at 20 min-->100/0 at 22 min-->15/85 at 24 min-->15/85 at 26 min, delivered at 1 ml/min. The analytes were detected by fluorescence detection with excitation and emission wavelength set at 480 and 550 nm, respectively. The calibration curves were linear over the range of 2-1000 ng/ml for effluent and plasma matrices, and 0.1 microg/g-750 microg/g for tissues matrices. The method is precise with inter-day and intra-day relative standard deviation within 0.5 and 6.7% and accurate with inter-day and intra-day deviations between -5.4 and +7.7%. The in vitro stability in all matrices and in processed samples has been studied at -80 degrees C for 1 month, and at 4 degrees C for 48 h, respectively. During initial studies, heparin used as anticoagulant was found to profoundly influence the measurements of doxorubicin in effluents collected from animals under ILP. Moreover, the strong matrix effect observed with tissues samples indicate that it is mandatory to prepare doxorubicin calibration standard samples in biological matrices which would reflect at best the composition of samples to be analyzed. This method was successfully applied in animal studies for the analysis of effluent, serum and tissue samples collected from pigs and rats undergoing ILP.
Collapse
Affiliation(s)
- A Kümmerle
- Division de Pharmacalogie clinique, Laboratoire BH 18-218, Département de Médecine, Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland
| | | | | | | | | | | | | |
Collapse
|
35
|
Schäfer M, Harder Y, Keel M, Kulli C, Müller C, Perret A, Saucy F, Vallet C. Does Switzerland train tomorrow's surgeons today? Today's reflections on tomorrow's surgeons. Swiss Surg 2002; 8:103-5. [PMID: 12125331 DOI: 10.1024/1023-9332.8.3.103] [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: 11/19/2022]
Abstract
Various factors are influencing the Swiss health care system, and therefore, surgeons' actual and future profession. Initiated by the current president of the Swiss Society of Surgery, a group of eight young Swiss surgeons constituted the ad hoc committee "Chirurgie 2020". The goal was to develop several scenarios of the surgeon's professional situation in 20 years. The future direction of surgery will be markedly influenced by medical innovation, political and economic relationships between Switzerland and Europe. However, the development of health care costs represents the most powerful factor predicting all further changes. The current situation of today's surgeons is best characterised as "hamsters in the treadmill" who try to fulfill a multitude of diverging tasks causing major demotivation. In order to retain a leading role in the health care system, surgeons must take part in social and political activities. To provide an excellent curriculum, university and county hospitals must join together to form clinical and educational networks. A clearly defined and structured curriculum must be introduced by the Swiss Society of Surgery. From our current point of view, only everyone's strong personal commitment will help to find solutions and to improve the current and future situation. In particular, today's surgical residents must actively take part in the development of tomorrow's surgery.
Collapse
Affiliation(s)
- M Schäfer
- Department of Visceral and Transplantation Surgery, University of Zurich, Zurich.
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Bettschart V, Vallet C, Golshayan D, Halabi G, Schneider R, Bischof-Delaloye A, Boubaker A, Wauters JP, Mosimann F. Laparoscopic procurement of kidney grafts from living donors does not impair initial renal function. Transplant Proc 2002; 34:787-90. [PMID: 12034183 DOI: 10.1016/s0041-1345(02)02689-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- V Bettschart
- Department of Surgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
| | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Saboungi ML, Vallet C, Doucet Y. Thermodynamic properties of the reciprocal system (potassium(+), silver(+)//nitrate(-), sulfate(2-)) from its phase diagram. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100632a022] [Citation(s) in RCA: 6] [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: 11/30/2022]
|
38
|
Vallet C, Bettschart V, Meuli R, Wauters JP, Mosimann F. Preoperative assessment of laparoscopic live kidney donors by gadolinium-enhanced magnetic resonance angiography. Transplant Proc 2002; 34:795-6. [PMID: 12034185 DOI: 10.1016/s0041-1345(01)02913-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- C Vallet
- Department of Surgery, Lausanne, Switzerland.
| | | | | | | | | |
Collapse
|
39
|
Affiliation(s)
- V Bettschart
- Department of Surgery, University Hospitals, Lausanne, Switzerland.
| | | | | | | | | | | | | |
Collapse
|
40
|
Abstract
OBJECTIVES To define a strategy for benign liver tumours treatment and to report our experience. DESIGN A retrospective study. PATIENTS Sixty-eight patients operated for benign liver tumours among 424 operated of liver resection. RESULTS Benign liver tumours were discovered during radiologic exploration for upper abdominal pain in 69%, incidentally during radiologic examination in 23% or at laparotomy in 8% of patients. Preoperative assessment of solid benign liver tumours was based on 4 radiologic examinations in average whereas cystic lesions needed only 2. The surgical treatment ranged from a simple tumorectomy to liver transplantation depending on the type, size and location of the tumour. There were no postoperative deaths and minor complications occurred in 7 patients (10%). Twenty hemangiomas, 20 hepatic cysts, 22 focal nodular hyperplasias (FNH), 4 hepatic adenomas (HA) and 2 cystadenomas were found on histology. The final diagnosis differed from the preoperative one in 36 patients (53%). CONCLUSIONS Differential diagnosis for cystic lesions are the hepatic cyst, the hydatid cyst and the cystadenoma. Hydatid cysts and cystadenomas are resected whereas the asymptomatic hepatic cyst is left untreated. Hemangiomas must be resected only when symptomatic or pedunculated. The differentiation between FNH, HA and hepatocellular carcinoma is difficult and final diagnosis is most often achieved only by surgery.
Collapse
Affiliation(s)
- C Vallet
- Service de Chirurgie, Centre Hospitalier Universitaire Vaudois, Lausanne, Suisse.
| | | | | |
Collapse
|
41
|
Vallet C, Martinet O, Mosimann F. [Surgical treatment of hepatic metastases]. Rev Med Suisse Romande 2001; 121:119-24. [PMID: 11285691] [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] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
The liver is a common site for metastases from various forms of primary tumors. Colorectal cancer most commonly, but also neuroendocrine tumors, gastrointestinal sarcoma, ocular melanoma and others metastasize to the liver. A complete staging is important before considering treatment options. Surgical resection is the only form of curative treatment for colorectal cancer metastases. Systemic or intraarterial hepatic chemotherapy may be an alternative for patients with unresectable disease. Other promising treatment options such as cryotherapy and radiofrequency ablation are curRently under evaluation. The treatment of metastases from neuroendocrine tumors and other noncolorectal primary malignancies has to be individualized based on the patient's clinical status and the extent of the disease.
Collapse
Affiliation(s)
- C Vallet
- Service de chirurgie, CHUV, Lausanne.
| | | | | |
Collapse
|
42
|
Martinet O, Vallet C, Mosimann F. [Gene therapy and cancer]. Rev Med Suisse Romande 2001; 121:113-7. [PMID: 11285690] [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] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Gene therapy by definition aims at modifying the genetic program of a cell towards a therapeutic or prophylactic goal. Several gene therapy strategies for cancer are currently under evaluation: 1) "suicide" gene therapy where an inactive prodrug is converted into a cytotoxic drug; 2) modification of the function of oncogenes and tumor suppressor genes; 3) modification of the host immune response towards the tumor; 4) disruption of the tumor neovascularisation; 5) lysis of tumor cells with replication-competent viruses. Recent results of phase I and II clinical studies have brought great hopes. However, the inefficiency of current gene vectors in infecting targeted cells and their inability to selectively access diseased cells distributed systemically are two major limitations that have to be overcome for further successful clinical applications.
Collapse
|
43
|
Jouanin L, Goujon T, de Nadaï V, Martin MT, Mila I, Vallet C, Pollet B, Yoshinaga A, Chabbert B, Petit-Conil M, Lapierre C. Lignification in transgenic poplars with extremely reduced caffeic acid O-methyltransferase activity. Plant Physiol 2000; 123:1363-74. [PMID: 10938354 PMCID: PMC59094 DOI: 10.1104/pp.123.4.1363] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/1999] [Accepted: 04/24/2000] [Indexed: 05/18/2023]
Abstract
Transgenic poplars (Populus tremula x Populus alba) were obtained by introduction of a sense homologous transgene encoding caffeic acid O-methyltransferase (COMT) under the control either of the cauliflower mosaic virus double 35S promoter or of the eucalyptus cinnamyl alcohol dehydrogenase promoter. Although these constructs conferred a moderate overexpression of COMT in some lines, a transgenic line with the double 35S promoter was found where COMT activity in woody tissues was close to zero due to a gene-silencing phenomenon. For the first time in COMT down-regulated trees, this alteration substantially reduced lignin level in 6-month-old trees (17% decrease). Lignin structure was found to be strongly altered, with a two times higher content in condensed bonds, an almost complete lack of syringyl units, and the incorporation of 5-hydroxyguaiacyl units to the most remarkable extent reported so far. Consistent with the higher cellulose content and with the higher condensation degree of the lignin, the impact of the transformation on the kraft-pulping performances of the poplar trees positively affected the pulp yield (10% relative increase), but made lignins less amenable to industrial degradations.
Collapse
Affiliation(s)
- L Jouanin
- Biologie Cellulaire, Institut National de la Recherche Agronomique, 78026 Versailles cedex, France.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Abstract
A multi-isotopic study of several components of milk has been carried out on commercial samples and on milk produced in feeding experiments involving different kinds of diets originating from C(3) or C(4) photosynthetic metabolisms and exhibiting a relatively wide range of isotope ratios. The dispersion of the carbon, hydrogen, and nitrogen isotope parameters of dried matter and of the lactose, protein, and lipid components has been estimated. In addition, the carbohydrates were represented by the site specific isotope ratios (SNIF-NMR) of ethanol resulting from standardized fermentation of lactose. The rates of response of the isotopic parameters to changes in the feeding materials is slower for the minor components, proteins, and lipids than for lactose and ethanol. For similar diets, the nonexchangeable sites of lactose and the methyl site of ethanol, in particular, are relatively enriched in deuterium in the case of polygastric animals, cow, goat, and ewe, as compared to the monogastric species, sow and mare, and woman. From an analytical point of view, the carbon and hydrogen parameters of ethanol provide efficient criteria for identifying a whey origin with respect to other agricultural and fossil sources.
Collapse
Affiliation(s)
- Z Masud
- LAIEM, Université de Nantes - CNRS, Faculté des Sciences, 2 rue de la Houssinière, BP 92208, 44322 Nantes Cedex 03, France
| | | | | |
Collapse
|
45
|
Vayssier M, Le Guerhier F, Fabien JF, Philippe H, Vallet C, Ortega-Pierres G, Soule C, Perret C, Liu M, Vega-Lopez M, Boireau P. Cloning and analysis of a Trichinella britovi gene encoding a cytoplasmic heat shock protein of 72 kDa. Parasitology 1999; 119 ( Pt 1):81-93. [PMID: 10446707 DOI: 10.1017/s0031182099004461] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.7] [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: 11/07/2022]
Abstract
A gene encoding a protein of 646 amino acid residues with a molecular mass of 71.3 kDa showing homology to the cytoplasmic form of the 70 kDa heat shock protein was cloned and sequenced from the nematode parasite Trichinella britovi (Tb). The gene was expressed in vitro as a protein of 71 kDa that was immunoprecipitated by a Trichinella-infected rabbit serum. Monospecific polyclonal antibodies raised against the recombinant Tb Hsp70 expressed in Escherichia coli, recognized a protein of 70 kDa by Western blot analysis of Tb soluble antigen (muscular stage). Tb Hsp70 was located in the nuclei of the muscle larvae as determined by the indirect immunofluorescent pattern on cross-sections of the worm. The expression of this protein was not detected in adult worm nuclei suggesting a differential expression of Hsp70 between the 2 stages of Trichinella.
Collapse
Affiliation(s)
- M Vayssier
- UMR INRA-AFSSA-ENVA, Biologie Moléculaire et Immunologie Parasitaires et Fongiques, Maisons-Alfort, France
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Affiliation(s)
- V Biourge
- Research & Development, Royal Canin, France
| | | | | | | | | | | |
Collapse
|
47
|
Vallet C. 511 The effects of stress and individual personality on an artistic performance. Int J Psychophysiol 1998. [DOI: 10.1016/s0167-8760(98)90510-4] [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: 10/26/2022]
|
48
|
|
49
|
Vallet C, Chabbert B, Czaninski Y, Lemaire G, Monties B. Extractibility of structural carbohydrates and lignin deposition in maturing alfalfa internodes. Int J Biol Macromol 1997; 21:201-6. [PMID: 9283037 DOI: 10.1016/s0141-8130(97)00062-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [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: 02/05/2023]
Abstract
In the present study, we have performed chemical investigations of the stem cell walls during internode maturation in order to study the growth dynamics of alfalfa and the deposition of the main cell wall components (polysaccharides and lignins). Internode cell walls were analysed by chemical fractionation using a mild delignification step aiming at sequential removal of polysaccharides and lignins. Delignification facilitated the subsequent removal of the xylose-rich polysaccharides by NaOH extraction as previously shown. This trend was more pronounced in the case of older internodes which have a larger proportion of secondary tissues containing syringyl type lignins in contrast to younger ones which are mainly composed of primary tissues containing guaiacyl type lignins and pectin rich cell walls.
Collapse
Affiliation(s)
- C Vallet
- Laboratoire de Chimie Biologique, INRA-INAPG, Thiverval-Grignon, France
| | | | | | | | | |
Collapse
|
50
|
Dupouy-Camet J, Robert F, Guillou JP, Vallet C, Perret C, Soulé C. Identification of Trichinella isolates with random amplified polymorphic DNA markers. Parasitol Res 1994; 80:358-60. [PMID: 8073027 DOI: 10.1007/bf02351881] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- J Dupouy-Camet
- Laboratoire de Parasitologie, Hôpital Cochin, Paris, France
| | | | | | | | | | | |
Collapse
|