J
Julien Ognard
Researcher at French Institute of Health and Medical Research
Publications - 80
Citations - 635
Julien Ognard is an academic researcher from French Institute of Health and Medical Research. The author has contributed to research in topics: Medicine & Internal medicine. The author has an hindex of 8, co-authored 47 publications receiving 323 citations. Previous affiliations of Julien Ognard include University of Western Brittany.
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Journal ArticleDOI
Mechanical Thrombectomy for Acute Ischemic Stroke Amid the COVID-19 Outbreak: Decreased Activity, and Increased Care Delays.
Basile Kerleroux,Thibaut Fabacher,Nicolas Bricout,Martin Moise,Benoit Testud,Sivadji Vingadassalom,Héloïse Ifergan,Kevin Janot,Arturo Consoli,Wagih Ben Hassen,Eimad Shotar,Julien Ognard,Guillaume Charbonnier,Vincent L'Allinec,Alexis Guédon,Federico Bolognini,Gaultier Marnat,Géraud Forestier,Aymeric Rouchaud,Raoul Pop,Nicolas Raynaud,François Zhu,Jonathan Cortese,Vanessa Chalumeau,Jérôme Berge,Simon Escalard,Gregoire Boulouis +26 more
TL;DR: A significant decrease in patients treated with MTs during the first stages of the COVID epidemic in France and alarming indicators of lengthened care delays are shown, prompting immediate consideration of local and regional stroke networks preparedness in the varying contexts of COVID-19 pandemic evolution.
Journal ArticleDOI
Thrombectomy alone versus intravenous alteplase plus thrombectomy in patients with stroke: an open-label, blinded-outcome, randomised non-inferiority trial
H. Fischer,Johannes Kaesmacher,Daniel Strbian,Omer Eker,Christophe Cognard,Patricia S. Plattner,L. Bütikofer,Pasquale Mordasini,Sandro Deppeler,Vitor Mendes Pereira,Jean-François Albucher,Jean Darcourt,Romain Bourcier,Guillon Benoit,Chrysanthi Papagiannaki,Ozlem Ozkul-Wermester,Gerli Sibolt,Marjaana Tiainen,Benjamin Gory,Sébastien Richard,Jan Liman,Marielle Ernst,Marion Boulanger,Charlotte Ebeling Barbier,Laura Mechtouff,Liqun Zhang,Gaultier Marnat,Igor Sibon,Omid Nikoubashman,Arno Reich,Arturo Consoli,Bertrand Lapergue,Marc Ribó,Alejandro Tomasello,Suzana Saleme,Francisco Macian,Solène Moulin,Paolo Pagano,Guillaume Saliou,Emmanuel Carrera,Kevin Janot,María Hernández-Pérez,Raoul Pop,Lucie Della Schiava,Andreas R. Luft,Michel Piotin,Jean-Christophe Gentric,Aleksandra Pikula,Waltraud Pfeilschifter,Marcel Arnold,Adnan H. Siddiqui,Michael Boehler,Anthony J. Furlan,René Chapot,Martin Wiesmann,P. Machi,Hans-Christoph Diener,Zsolt Kulcsar,Leo H. Bonati,Claudio L. Bassetti,Mikael Mazighi,David S Liebeskind,Jeffrey L. Saver,Jan Gralla,Angelika Alonso,Caroline Arquizan,Xavier Barreau,Rémy Beaujeux,Daniel Behme,Tobias Boeckh-Behrens,Christian Boehme,M. Boix,Gregoire Boulouis,Nicolas Bricout,Nicolas Broc,Carlo W. Cereda,Emmanuel Chabert,Tae-Hee Cho,Alessandro Cianfoni,Vincent Costalat,Christian Denier,Frederico Di Maria,Richard du Mesnil de Rochemont,Patricia Fearon,Anna Ferrier,Sebastian Fischer,Maxime Gauberti,Marie Gaudron,Laetitia Gimenez,C. Globas,Michael Görtler,Mayank Goyal,Ruediger Hilker-Roggendorf,Michael D. Hill,Vi Tuan Hua,Lisa Humbertjean,Olav Jansen,Simon C. Jung,Georg Kägi,Michael Kelly,Ilka Kleffner,Michael Knoflach,Krassen Nedeltchev,Lars Udo Krause,Kimmo Lappalainen,Margaux Lefebvre,Joe Joseph Leyon,Liang Liao,J.S. Liegey,Christian Loehr,Patrik Michel,Stefania Nannoni,Patrick Nicholson,Lorena Nico,Michael Obadia,Julien Ognard,Ayokunle Ogungbemi,Jean-Marc Olivot,Simon Escalard,Marco Pasi,Lissa Peeling,Janelle Sofia Perez,Martina Petersen,Eike I. Piechowiak,Roberto Wagner Cavalcanti Raposo,Silja Räty,Sarah C. Reitz,Sebastian Remollo,Luca Remonda,Ian Rennie,Manuel Requena,Alexander Riabikin,Roberto Riva,Aymeric Rouchaud,Andrea Rosi,Marta Rubiera,Laurent Spelle,Marlena Schnieder,Joanna D. Schaafsma,Tilman Schubert,Jörg B. Schulz,M Siddiqui,Sébastien Soize,Michael Sonnberger,Emmanuel Touzé,Aude Triquenot,Guillaume Turc,Lucy Vieira,Wagih Ben Hassen,Judith Wagner,Katrin Wasser,Johannes Weber,Holger Wenz,David Weisenburger-Lile,Fritz Wodarg,Valérie Wolff,Silke Wunderlich +156 more
TL;DR: Thrombectomy alone was not shown to be non-inferior to intravenous alteplase plus thromBectomy and resulted in decreased reperfusion rates, and results do not support omitting intravenousAlteplas before throm bectomy in eligible patients.
Journal ArticleDOI
Periprocedural safety and technical outcomes of the new Silk Vista Baby flow diverter for the treatment of intracranial aneurysms: results from a multicenter experience
Mario Martínez-Galdámez,Alessandra Biondi,Vladimir Kalousek,Vitor Mendes Pereira,Giuseppe Ianucci,Jean-Christophe Gentric,Pascal J. Mosimann,Denis Brisbois,Stefan Schob,Ulf Quäschling,Johannes Kaesmacher,Julien Ognard,Jorge Escartín,Chun On Anderson Tsang,Chun On Anderson Tsang,Branimir Čulo,Emmanuel Chabert,Francis Turjman,Charlotte Barbier,Cristian Mihalea,Laurent Spelle,René Chapot +21 more
TL;DR: It is demonstrated that the use of the new low-profile flow diverter, SVB device, for the treatment of intracranial aneurysms is feasible and technically safe.
Journal ArticleDOI
Mechanical Thrombectomy for Acute Ischemic Stroke Amid the COVID-19 Outbreak in France: Decreased Activity, and Increased Care Delays
Basile Kerleroux,Thibaut Fabacher,Nicolas Bricout,Martin Moise,Benoit Testud,Sivadji Vingadassalom,Héloïse Ifergan,Kevin Janot,Arturo Consolli,Wagih Ben Hassen,Eimad Shotar,Julien Ognard,Guillaume Charbonnier,Vincent L'Allinec,Alexis Guédon,Federico Bolognini,Gaultier Marnat,Géraud Forestier,Aymeric Rouchaud,Raoul Pop,Nicolas Raynaud,François Zhu,Jonathan Cortese,Vanessa Chalumeau,Simon Escalard,Jérôme Berge,Gregoire Boulouis +26 more
TL;DR: The efficiency of pre-hospital care chain response and the adequacy of hospital resources are challenged amid the Coronavirus disease 2019 (COVID-19).
Journal ArticleDOI
Rare Coding Variants in ANGPTL6 Are Associated with Familial Forms of Intracranial Aneurysm.
Romain Bourcier,Solena Le Scouarnec,Stéphanie Bonnaud,Matilde Karakachoff,Emmanuelle Bourcereau,Sandrine Heurtebise-Chrétien,Celine Menguy,Christian Dina,Floriane Simonet,Alexis Moles,Cédric Lenoble,Pierre Lindenbaum,Stéphanie Chatel,Bertrand Isidor,Emmanuelle Génin,Jean-François Deleuze,Jean-Jacques Schott,Hervé Le Marec,Hubert Desal,Benjamin Daumas-Duport,Jérôme Connault,Pierre Lebranchu,Thierry Le Tourneau,Marie Pierre Viarouge,C. Papagiannaki,Michel Piotin,Hocine Redjem,Mikael Mazighi,Jean-Philippe Desilles,Olivier Naggara,Denis Trystram,Myriam Edjlali-Goujon,Christine Rodriguez,Waghi Ben Hassen,Suzanna Saleme,Charbel Mounayer,O. Levrier,Pierre Aguettaz,Xavier Combaz,Anne Pasco,Emeline Berthier,Marc Bintner,Marc Molho,Pascale Gauthier,Cyril Chivot,Vincent Costalat,Cyril Darganzil,Alain Bonafe,Anne Christine Januel,Caterina Michelozzi,Christophe Cognard,Fabrice Bonneville,Philippe Tall,Jean Darcourt,Alessandra Biondi,Cristina Iosif,Elisa Pomero,Jean-Christophe Ferré,Jean-Yves Gauvrit,François Eugène,Hélène Raoult,Jean-Christophe Gentric,Julien Ognard,René Anxionnat,Serge Bracard,Anne Laure Derelle,Romain Tonnelet,Laurent Spelle,Léon Ikka,Robert Fahed,Aymeric Rouchaud,Augustin Ozanne,Jildaz Caroff,Nidal Ben Achour,Jacques Moret,Emmanuel Chabert,Jérôme Berge,Gaultier Marnat,Xavier Barreau,Florent Gariel,Frédéric Clarençon,Mohammed Aggour,Frédéric Ricolfi,Adrien Chavent,Pierre Thouant,Pablo Lebidinsky,Brivael Lemogne,Denis Herbreteau,R. Bibi,Laurent Pierot,Sébastien Soize,M.-A. Labeyrie,Christophe Vandendries,Emmanuel Houdart,Appoline Kazemi,Xavier Leclerc,Jean Pierre Pruvo,Sophie Gallas,Stéphane Velasco,Gervaise Loirand,Richard Redon +100 more
TL;DR: The results indicate that rare coding variants in ANGPTL6 are causally related to familial forms of IA, and a higher rate of individuals with a history of high blood pressure among affected versus healthy individuals carrying Angiopoietin-Like 6 variants is observed, suggesting that ANGPTl6 could trigger cerebrovascular lesions when combined with other risk factors such as hypertension.