From: Comorbid neuropathologies in migraine: an update on cerebrovascular and cardiovascular aspects
Type | Definition |
---|---|
Migraine as a risk factor for stroke | A clearly clinically defined stroke syndrome must occur remotely in time from a typical attack of migraine |
Migraine caused by stroke (symptomatic migraine) | An acute vascular event in the central nervous system (ischemic or hemorrhagic stroke or TIA) produces episodes of headache with the characteristics of migraine with or without aura; to be coded as ICHD-II 6.1 |
Migraine as a cause of stroke (migrainous infarction) | A documented infarct in a relevant area during the course of an attack of migraine with aura, in a patient with a history of migraine with aura, with symptoms that are those of the aura and in the absence of other possible causes at an extensive workup; to be coded as ICHD-II 1.5.4 |
Migraine and stroke sharing a common cause | A syndrome (usually of genetic origin) in which both migraine and stroke are major clinical features (e.g. CADASIL [ICHD-II 6.7.1] or MELAS [ICHD-II 6.7.2]) |
Migraine associated with subclinical stroke | Evidence at brain neuroimaging of small areas compatible with brain ischemia in patients without a history of any clinical symptom indicating a stroke syndrome |
Migraine mimicking stroke (and viceversa: stroke mimicking migraine) | Symptoms of migraine attacks (particularly aura without headache) and of stroke (particularly TIAs) may overlap causing problems in the differential diagnosis |