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Ørjan Samuelsen
Researcher at University Hospital of North Norway
Publications - 126
Citations - 5357
Ørjan Samuelsen is an academic researcher from University Hospital of North Norway. The author has contributed to research in topics: Klebsiella pneumoniae & Medicine. The author has an hindex of 36, co-authored 112 publications receiving 4468 citations. Previous affiliations of Ørjan Samuelsen include University of Tromsø & University of Bristol.
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Journal ArticleDOI
Rapid evolution and spread of carbapenemases among Enterobacteriaceae in Europe
Rafael Cantón,Murat Akova,Yehuda Carmeli,Christian G. Giske,Youri Glupczynski,Marek Gniadkowski,David M. Livermore,David M. Livermore,Vivi Miriagou,Thierry Naas,Gian Maria Rossolini,Ørjan Samuelsen,Harald Seifert,Neil Woodford,Patrice Nordmann +14 more
TL;DR: Rapid identification of colonized or infected patients and screening of carriers is possible, and will probably be effective for prevention of a scenario of endemicity, as now reported for extended-spectrum β-lactamase producers in all European countries.
Journal ArticleDOI
Occurrence of carbapenemase-producing Klebsiella pneumoniae and Escherichia coli in the European survey of carbapenemase-producing Enterobacteriaceae (EuSCAPE): a prospective, multinational study.
Hajo Grundmann,Hajo Grundmann,Corinna Glasner,Corinna Glasner,Barbara Albiger,David M. Aanensen,David M. Aanensen,Chris T Tomlinson,Arjana Tambic Andrasevic,Rafael Cantón,Yehuda Carmeli,Alexander W. Friedrich,Christian G. Giske,Christian G. Giske,Youri Glupczynski,Marek Gniadkowski,David M. Livermore,David M. Livermore,Patrice Nordmann,Patrice Nordmann,Laurent Poirel,Laurent Poirel,Gian Maria Rossolini,Harald Seifert,Alkiviadis Vatopoulos,Timothy R. Walsh,Neil Woodford,Dominique L Monnet,Andi Koraqi,Denada Lacej,Petra Apfalter,Rainer Hartl,Te-Din Huang,T. Strateva,Y. Marteva-Proevska,Iva Butic,Despo Pieridou-Bagatzouni,Panagiota Maikanti-Charalampous,Jaroslav Hrabak,Helena Zemlickova,Anette M. Hammerum,Lotte Jakobsen,Marina Ivanova,Anastasia Pavelkovich,Jari Jalava,Monica Osterblad,Laurent Dortet,Sophie Vaux,Martin Kaase,Sören Gatermann,Kyriaki Tryfinopoulou,Akos Toth,Laura Janvari,Teck Wee Boo,Elaine McGrath,Amos Adler,Annalisa Pantosti,Monica Monaco,Lul Raka,Arsim Kurti,Arta Balode,Mara Saule,Jolanta Miciuleviciene,Aiste Mierauskaite,Monique Perrin-Weniger,Paul Reichert,Nina Nestorova,Sonia Debattista,Gordana Mijovic,Milena Lopicic,Ørjan Samuelsen,Bjørg Haldorsen,Dorota Zabicka,E Literacka,Manuela Caniça,Vera Manageiro,Ana Kaftandzieva,Elena Trajkovska-Dokic,Maria Damian,Brandusa Elena Lixandru,Zora Jelesic,Anika Trudic,Milan Niks,Eva Schreterova,Mateja Pirs,Tjasa Cerar,Jesús Oteo,Belén Aracil,Christian Giske,Karin Sjostrom,D Gür,Asli Cakar,Katie L. Hopkins,Camilla Wiuff,Derek J. Brown +94 more
TL;DR: The development of a consistent sampling framework and the results of the first structured survey on the occurrence of carbapenemase-producing Klebsiella pneumoniae and Escherichia coli in European hospitals are reported.
Journal ArticleDOI
The role of whole genome sequencing in antimicrobial susceptibility testing of bacteria : report from the EUCAST Subcommittee
Matthew J. Ellington,Oskar Ekelund,Frank Møller Aarestrup,Rafael Cantón,Michel Doumith,Christian G. Giske,H. Grundman,Henrik Hasman,Matthew T. G. Holden,Katie L. Hopkins,J. Iredell,Gunnar Kahlmeter,Claudio U. Köser,Alasdair P. MacGowan,Dik Mevius,Dik Mevius,Michael R. Mulvey,Thierry Naas,Tim E. A. Peto,J.-M. Rolain,Ørjan Samuelsen,Neil Woodford +21 more
TL;DR: The European Committee on Antimicrobial Susceptibility Testing established a subcommittee to review the current development status of Whole Genome Sequencing (WGS) for bacterial antimicrobial susceptibility testing (AST) as discussed by the authors.
Journal ArticleDOI
Insights into the global molecular epidemiology of carbapenem non-susceptible clones of Acinetobacter baumannii.
Nabil Karah,Nabil Karah,Arnfinn Sundsfjord,Arnfinn Sundsfjord,Kevin J. Towner,Ørjan Samuelsen +5 more
TL;DR: This review considers the literature on Acinetobacter baumannii and data from multilocus sequence typing studies to explore the global population structure of A. baumANNii and detect the occurrence of clonality, with the focus on the presence of specific resistance mechanisms such as the OXA-carbapenemases.
Journal ArticleDOI
A sensitive and specific phenotypic assay for detection of metallo-β-lactamases and KPC in Klebsiella pneumoniae with the use of meropenem disks supplemented with aminophenylboronic acid, dipicolinic acid and cloxacillin
Christian G. Giske,Christian G. Giske,L. Gezelius,Ørjan Samuelsen,Marina Warner,Arnfinn Sundsfjord,Arnfinn Sundsfjord,Neil Woodford +7 more
TL;DR: The in-house test distinguished accurately between several different mechanisms mediating reduced susceptibility to carbapenems in Enterobacteriaceae, and showed excellent sensitivity for detecting K. pneumoniae with KPC enzymes.