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New daily persistent headache (NDPH) is a chronic primary headache disorder with a characteristic temporal profile of sudden onset headache that persists daily from the onset.12 The core diagnostic criteria for NDPH include clearly remembered onset of headache and persistence of daily headaches for >3 months3 Several predisposing factors including infectious illness, stressful life events, and surgical procedures have been described in approximately half the patients; however, the precise pathogenesis is not understood.1,2,4 This report describes NDPH-like presentation triggered by head drop in a patient with acute onset of myasthenia gravis (MG). The daily headaches persisted despite spontaneous remission of MG. Later, the patient developed recurrence of myasthenic symptoms, and the headache remitted after pyridostigmine was started. |
