Neurostimulation Device for Treatment of Migraine Headache

Inclusion Criteria: * A history of at least four, and not more than fourteen total monthly headache days of which between four and nine were migraine headache days. (Note: Patients were permitted continued access to migraine abortive medications and were being treated at the Duke University headache clinic.) * A history of some responsiveness (incomplete) to at least one and a maximum of two prophylactic pharmaceutical therapies (utilized concurrently); * The investigator must have confidence in the patient's ability to reliably complete and return the Daily Headache Diary. * Subject must be at least 18 years of age. Exclusion Criteria: * Individuals who were pregnant, who had a history of cardiovascular disease, who worked night shifts or who had vestibular migraine, menstrual migraine, post-traumatic migraine, a history of unstable mood disorder or unstable anxiety, moderate or greater hearing loss or a history of traumatic brain injury. * A history within the last six months of tobacco use, narcotic or barbiturates use or experiencing one or more analgesic rebound headaches.