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A retrospective notes review was completed for patients identified as having skew deviation. The authors outline their exact definition of skew deviation within the methods of the paper. One hundred and fifty-seven patients were identified, it is not clear over what time period these patients presented. The diagnosis was made in both inpatient and outpatient settings, however most commonly as an outpatient, and by a variety of different healthcare professionals. The majority of patients reported diplopia, some reported other symptoms such as blurred vision, however a small number reported no visual symptoms. Recovery is dependent on aetiology, and less than half of this cohort fully recovered. However, this can be over an extended period beyond 12 months. The majority of cases had only neurological signs identified. Stroke was reported as the most common aetiology, with brainstem and thalamus being commonly affected locations. However, a wide range of aetiologies were reported. This study presents a large series of skew deviations and has been able to confirm clinical impressions from smaller case series with regard to aetiology, presentation and prognosis.

The clinical and imaging profile of skew deviation: a study of 157 cases.
Walter E, Trobe JD.
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Lauren R Hepworth

University of Liverpool; Honorary Stroke Specialist Clinical Orthoptist, Northern Care Alliance NHS Foundation Trust; St Helen’s and Knowsley NHS Foundation Trust, UK.

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