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. 2015 Jul;46(7):1987-9.
doi: 10.1161/STROKEAHA.115.009604. Epub 2015 May 21.

Infratentorial Microbleeds: Another Sign of Microangiopathy in Migraine

Enrico B Arkink  1 , Gisela M Terwindt  2 , Anton J M de Craen  2 , Junya Konishi  2 , Jeroen van der Grond  2 , Mark A van Buchem  2 , Michel D Ferrari  2 , Mark C Kruit  2 ; PROSPER Study Group
Affiliations

Infratentorial Microbleeds: Another Sign of Microangiopathy in Migraine

Enrico B Arkink et al. Stroke. 2015 Jul.

Abstract

Background and purpose: Migraine is a risk factor for clinical stroke and for subclinical white matter hyperintensities and infratentorial infarcts. These subclinical lesions are linked to small-vessel pathology. Cerebral microbleeds (CMBs) are another biomarker of small-vessel disease but have not yet been studied in migraine.

Methods: Identification of CMBs in 63 migraineurs (25 with aura/35 without aura/3 unknown aura status) and 359 controls (aged, 73-85 years) from the Prospective Study of Pravastatin in the Elderly at Risk (PROSPER) magnetic resonance imaging study. We assessed the modifying role of migraine in the co-occurrence of CMBs, infarcts, and white matter hyperintensity-load.

Results: Infratentorial microbleeds were more prevalent in migraine without aura patients than controls (14% versus 4%). Prevalence of other CMBs, infarcts, and white matter hyperintensities did not differ between groups. Migraineurs with CMBs had more often infarcts than controls with CMBs (65% versus 43%). In comparison with controls with infarcts, migraineurs with infarcts had more commonly CMBs (55% versus 30%).

Conclusions: Migraine, notably without aura, is associated with infratentorial CMBs at older age. CMBs and infarcts co-occur more often in migraine than in controls. This supports the hypothesis of small-vessel involvement in migraine pathophysiology.

Keywords: cerebral small vessel disease; magnetic resonance imaging; migraine disorders.

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