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Differentiation of posterior circulation stroke (<jats:styled-content style=\"fixed-case\">PCS<\/jats:styled-content>) presenting as an <jats:styled-content style=\"fixed-case\">AVS<\/jats:styled-content> has been regarded as an important diagnostic challenge for physicians involved in acute care. Current evidence suggests that a targeted approach to history taking and physical examination with emphasis on the oculomotor examination, more specifically the <jats:styled-content style=\"fixed-case\">HINTS<\/jats:styled-content> (Head Impulse\/Nystagmus\/Test\u2010of\u2010skew) examination battery, yields a higher sensitivity for the diagnosis of <jats:styled-content style=\"fixed-case\">PCS<\/jats:styled-content> than even standard magnetic resonance imaging with diffusion\u2010weighted imaging. However, most studies have only validated the utility of the <jats:styled-content style=\"fixed-case\">HINTS<\/jats:styled-content> examination when performed by experts, who interpret the most powerful component of <jats:styled-content style=\"fixed-case\">HINTS<\/jats:styled-content>, namely the head impulse test (<jats:styled-content style=\"fixed-case\">HIT<\/jats:styled-content>), considerably different to the novice. Several investigations useful in the differentiation of the <jats:styled-content style=\"fixed-case\">AVS<\/jats:styled-content> are becoming more accessible and portable, such as videooculography with Frenzel goggles and video head impulse testing (<jats:styled-content style=\"fixed-case\">vHIT<\/jats:styled-content>), which allows for the quantitative assessment of the <jats:styled-content style=\"fixed-case\">HIT<\/jats:styled-content>. In clinical practice, <jats:styled-content style=\"fixed-case\">vHIT<\/jats:styled-content> has already become accepted as standard of care in the evaluation of <jats:styled-content style=\"fixed-case\">AVS<\/jats:styled-content>.<\/jats:p>","DOI":"10.1111\/imj.13552","type":"journal-article","created":{"date-parts":[[2017,7,11]],"date-time":"2017-07-11T12:58:46Z","timestamp":1499777926000},"page":"1352-1360","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Acute evaluation of the acute vestibular syndrome: differentiating posterior circulation stroke from acute peripheral vestibulopathies"],"prefix":"10.1111","volume":"47","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3887-6900","authenticated-orcid":false,"given":"Benjamin K. 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