PT - JOURNAL ARTICLE AU - B M Seemungal AU - A M Bronstein TI - A practical approach to acute vertigo AID - 10.1136/jnnp.2008.154799 DP - 2008 Aug 01 TA - Practical Neurology PG - 211--221 VI - 8 IP - 4 4099 - http://pn.bmj.com/content/8/4/211.short 4100 - http://pn.bmj.com/content/8/4/211.full SO - Pract Neurol2008 Aug 01; 8 AB - Patients complaining of symptoms of acute vertigo present a diagnostic challenge for the clinician; the main differential diagnoses are acute unilateral peripheral vestibulopathy (“vestibular neuritis”), cerebellar stroke or migraine. The head impulse test is useful in the acute situation because, of these three diagnostic alternatives, it will only be positive in patients with vestibular neuritis. A history of acute vertigo and hearing loss suggests Ménière’s disease but the clinician must be wary of anterior inferior cerebellar artery strokes which may cause audiovestibular loss due to peripheral vestibulocochleal ischaemia, although the accompanying brainstem signs should remove diagnostic ambiguity. We also discuss other less common vertigo diagnoses that may be referred to the neurologist from the acute general hospital take. As ever in neurology, a careful history and focussed examination is necessary in the evaluation and management of acute vertigo.