Publications by authors named "Arni Jon Geirsson"

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The relationship between lifestyle factors and outcome of treatment with TNFα inhibitors in axial spondyloarthritis - results from 14 European countries.
Gareth T Jones, Ovidiu Rotariu, Ross MacDonald, Brigitte Michelsen, Bente Glintborg, Arni Jon Geirsson

BMC Rheumatol· July 2025

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Second and third TNF inhibitors in European patients with axial spondyloarthritis: effectiveness and impact of the reason for switching.
Louise Linde, Lykke Midtbøll Ørnbjerg, Cecilie Heegaard Brahe, Johan Karlsson Wallman, Daniela Di Giuseppe, Arni Jon Geirsson

Rheumatology (Oxford)· July 2024

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One-Third of European Patients With Axial Spondyloarthritis Reach Pain Remission With Routine Care Tumor Necrosis Factor Inhibitor Treatment.
Lykke Midtbøll Ørnbjerg, Kathrine Rugbjerg, Stylianos Georgiadis, Simon Horskjær Rasmussen, Ulf Lindström, Arni Jon Geirsson

J Rheumatol· August 2023

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Corrigendum to 'Predictors of ASDAS-CRP inactive disease in axial spondyloarthritis during treatment with TNF-inhibitors: data from the EuroSpA collaboration' [Seminars in Arthritis and Rheumatism 56 (2022) 1-13/152081].
Lykke M Ørnbjerg, Louise Linde, Stylianos Georgiadis, Simon H Rasmussen, Ulf Lindström, Arni Jon Geirsson

Semin Arthritis Rheum· February 2023

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The impact of a csDMARD in combination with a TNF inhibitor on drug retention and clinical remission in axial spondyloarthritis.
Michael Nissen, Bénédicte Delcoigne, Daniela Di Giuseppe, Lennart Jacobsson, Merete Lund Hetland, Árni Jón Geirsson

Rheumatology (Oxford)· November 2022

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Predictors of ASDAS-CRP inactive disease in axial spondyloarthritis during treatment with TNF-inhibitors: Data from the EuroSpA collaboration.
Lykke M Ørnbjerg, Louise Linde, Stylianos Georgiadis, Simon H Rasmussen, Ulf Lindström, Arni Jon Geirsson

Semin Arthritis Rheum· October 2022

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The occurrence of multiple treatment switches in axial spondyloarthritis. Results from five Nordic rheumatology registries.
Daniela Di Giuseppe, Ulf Lindström, Kalle Aaltonen, Heikki Relas, Sella Provan, Arni Jon Geirsson

Rheumatology (Oxford)· August 2022

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One-Year Treatment Outcomes of Secukinumab Versus Tumor Necrosis Factor Inhibitors in Spondyloarthritis: Results From Five Nordic Biologic Registries Including More Than 10,000 Treatment Courses.
Bente Glintborg, Ulf Lindström, Daniela Di Giuseppe, Sella Aarrestad Provan, Bjorn Gudbjornsson, Arni Jon Geirsson

Arthritis Care Res (Hoboken)· May 2022

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Native joint infections in Iceland 2003-2017: an increase in postarthroscopic infections.
Signý Lea Gunnlaugsdóttir, Helga Erlendsdóttir, Kristján Orri Helgason, Árni Jón Geirsson, Valtýr Thors

Ann Rheum Dis· January 2022

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Drug retention, inactive disease and response rates in 1860 patients with axial spondyloarthritis initiating secukinumab treatment: routine care data from 13 registries in the EuroSpA collaboration.
Brigitte Michelsen, Ulf Lindström, Catalin Codreanu, Adrian Ciurea, Jakub Zavada, Arni Jon Geirsson

RMD Open· September 2020

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Treatment retention of infliximab and etanercept originators versus their corresponding biosimilars: Nordic collaborative observational study of 2334 biologics naïve patients with spondyloarthritis.
Ulf Lindström, Bente Glintborg, Daniela Di Giuseppe, Dan Nordström, Sella Aarrestad Provan, Arni Jon Geirsson

RMD Open· April 2020

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Treatment response and drug retention rates in 24 195 biologic-naïve patients with axial spondyloarthritis initiating TNFi treatment: routine care data from 12 registries in the EuroSpA collaboration.
Lykke Midtbøll Ørnbjerg, Cecilie Heegaard Brahe, Johan Askling, Adrian Ciurea, Herman Mann, Árni Jón Geirsson

Ann Rheum Dis· November 2019

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[Vanishing lungs - a case report].
Thorunn Halldora Thordardottir, Arni Jon Geirsson, Sif Hansdottir

Laeknabladid· July 2019

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Low starting dosage of infliximab with possible escalating dosage in psoriatic arthritis gives the same treatment results as standard dosage of adalimumab or etanercept: results from the nationwide Icelandic ICEBIO registry.
Bjorn Gudbjornsson, Arni Jon Geirsson, Niels Steen Krogh

Psoriasis (Auckl)· May 2018

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[Tumors of unknown origin: Case report].
Arni Jon Geirsson, Sigridur Thordis Valtysdottir, Andres Sigvaldason, Margret Sigurdardottir

Laeknabladid· April 2017

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Impact of different infliximab dose regimens on treatment response and drug survival in 462 patients with psoriatic arthritis: results from the nationwide registries DANBIO and ICEBIO.
Bente Glintborg, Bjorn Gudbjornsson, Niels Steen Krogh, Emina Omerovic, Natalia Manilo, Arni Jon Geirsson

Rheumatology (Oxford)· November 2014

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Genetic predisposition of the severity of joint destruction in rheumatoid arthritis: a population-based study.
Rachel Knevel, Gerður Gröndal, Tom W J Huizinga, A Willemien Visser, Helgi Jónsson, Arni Jón Geirsson

Ann Rheum Dis· May 2012

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Prevalence and clinical characteristics of ankylosing spondylitis in Iceland - a nationwide study.
Arni Jon Geirsson, Helga Eyjolfsdottir, Gyda Bjornsdottir, Kristleifur Kristjansson, Bjorn Gudbjornsson

Clin Exp Rheumatol· September 2010

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A strong familiality of ankylosing spondylitis through several generations.
Arni Jon Geirsson, Kristleifur Kristjansson, Bjorn Gudbjornsson

Ann Rheum Dis· July 2010

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[Case of the month: gout].
Sverrir Ingi Gunnarsson, Tómas Gudbjartsson, Arni Jón Geirsson

Laeknabladid· November 2008

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Rib cage motion in ankylosing spondylitis patients: a pilot study.
Maria Ragnarsdottir, Arni Jon Geirsson, Bjorn Gudbjornsson

Spine J· August 2008

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[Bone mineral density and bone turnover in systemic sclerosis].
Bjarki Thor Alexandersson, Arni Jon Geirsson, Isleifur Olafsson, Leifur Franzson, Gunnar Sigurdsson

Laeknabladid· September 2007

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