Dr O’Shea graduated from University College Dublin in 1996. During his specialist training in Rheumatology he worked in St Vincent’s Hospital, Waterford Regional Hospital, St James’s Hospital and the Mater Hospital. He was the inaugural recipient of the Irish Society for Rheumatology / Wyeth Travelling Fellowship award. This facilitated the completion of his training in the University of Toronto and Toronto Western Hospital, Canada. He went on to undertake a Research Fellowship in Toronto with Dr Robert Inman with a focus on patients with Ankylosing Spondylitis and Psoriatic Arthritis. He has presented at the American College of Rheumatology Annual Meeting on this work.

• Active member of ASAS (Assessment of SpondyloArthritis international Society), an international group of experts in the field of Ankylosing Spondylitis (AS)
• Co-founder and principal investigator of ASRI – the Ankylosing Spondylitis Registry of Ireland, a national database of patients with AS from across Ireland.