Objective: To report 2 new nummular headache (NH) cases and review the clinical features and management of NH.
Background: NH is a coin-shaped headache with a fixed shape and size. Since the first case series was reported by Pareja, approximately 300 cases have been reported. However, the latest treatment status and pathogenesis of NH remain unclear.
Methods: Two new NH cases with improved symptomatic responses to metoprolol were reported. We also conducted a narrative review of cases published in English aiming to provide the newest information about the clinical features and management of NH.
Results: Two NH patients with skin depressions within the painful area experienced significantly improvement with metoprolol. The literature review showed that NH was mainly moderate-to-severe in 77.8% (186/239) of the patients. Sensory dysfunction and focal trophic changes were reported in 47.8% (149/312) and 3.8% (12/312) of the patients, respectively. Gabapentin was the most commonly used and effective prophylactic, with a responder rate of 67.9% (55/81). Botulinum toxin type A was used for refractory NH, with an effective rate of 81.8% (9/11). Ten patients from the previous studies were prescribed β-adrenergic blockers without any relief, and none of them reported focal tropic changes.
Conclusions: NH can be a disabling headache in more than half of identified patients and requires medical intervention. As with the previous treatment recommendations, gabapentin was the most commonly used prophylactic with a good response. Our cases suggested that β-adrenergic blockers could be a therapeutic option for NH patients with focal trophic changes within the areas.
Keywords: nummular headache; pathogenesis; treatment; β-adrenergic blockers.
© 2019 American Headache Society.