Cephalalgia 2020-Apr
Dizziness and vertigo during the prodromal phase and headache phase of migraine: A systematic review and meta-analysis.
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RESULTS
We identified nine articles eligible for inclusion. Of these, one study reported results for the prodromal phase, seven studies for the headache phase and one study for both the prodromal and headache phase. In the prodromal phase, 9.0% of individuals with migraine reported dizziness, while 3.3% reported vertigo. During the headache phase, relative frequency of dizziness ranged from 6.7% to 59.6%, while vertigo ranged from 6.4% to 44.7%. The meta-analysis showed a relative frequency of 35.7% for dizziness (95% CI = 13.7-61.5%, I2 = 99%) and 33.9% for vertigo (95% CI = 26.7-41.5%, I2 = 87%). Study quality was rated 5/9 or below for seven studies and 6/9 or above for two studies.