Cessation of sporadic hemiplegic migraine attacks after patent foramen ovale closure

摘要

Sporadic hemiplegic migraine (SHM) is a rare, distinct type of migraine.1 In most cases it is a spontaneous disorder; however, there is evidence that it may also be symptomatic.Patent foramen ovale (PFO) may act as a causal or triggering factor for migraine attacks. A recent quantitative systematic review of the relationship between PFO and migraine has revealed that the already existing data which imply increased prevalence of PFO in patients with migraine attacks, increased prevalence of migraine attacks in patients with PFO, and improvement (even total abolition) of migraine attacks, after PFO closure in migraineurs are supported by little evidence.3,4 The authors of this review, however, state that no conclusion can be drawn about the efficacy of PFO closure in migraine treatment, as further studies are needed.