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Published on: June 2, 2014
Medication overuse headache: rates and predictors for relapse in a 4-year prospective study
Z Katsarava1, M Muessig, A Dzagnidze
1Department of Neurology, University Hospital Essen, Essen, Germany.
Abstract:
We present a prospective 4-year follow-up study of 96 patients with medication overuse headache following withdrawal. Complete datasets were available from 85 patients (89%) 6 months, from 79 patients (82%) 1 year and from 75 patients (78%) 4 years after withdrawal. Twenty-six patients (31%) relapsed within the first 6 months after withdrawal. The number of relapses increased to 32 (41%) 1 year and to 34 (45%) 4 years after withdrawal. The 4-year relapse rate was lower in migraine than in tension-type headache (32% vs. 91%, P
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