Seasonal occurrence of relapses in inflammatory myopathies: a preliminary study

B.A. Phillips, P.J. Zilko, M.J. Garlepp, Francis Mastaglia

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


The seasonal occurrence of relapses was analysed retrospectively in a group of 53 patients with treated dermatomyositis (DM) or polymyositis (PM). In DM, the incidence of both myositic and cutaneous relapses was highest in summer whereas in the PM group relapses was more evenly distributed throughout the seasons but lowest in summer. The present findings suggest that environmental factors such as intercurrent infections and light exposure maybe involved in reactivating the disease process and causing relapses in DM but less so in PM. Further prospective studies are needed to assess the role of environmental factors in the initiation and reactivation of the inflammatory myopathies.
Original languageEnglish
Pages (from-to)441-444
JournalJournal of Neurology
Publication statusPublished - 2002


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