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 ORIGINAL ARTICLE
Year : 2021  |  Volume : 69  |  Issue : 1  |  Page : 97--101

Diagnosing Stroke in Acute Vertigo: Sensitivity and Specificity of HINTS Battery in Indian Population


Department of Neurology, Poona Hospital and Research Centre, Pune, Maharashtra, India

Correspondence Address:
Deepak S Phalgune
Department of Research, Poona Hospital and Research Centre, Pune, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0028-3886.310089

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Introduction: Most patients presenting with acute vertigo are believed to suffer from acute, self-limited, presumed viral or post-viral vestibular neuritis (VN). But 25% of such cases can be “Pseudo VN”, and are due to central causes, most often stroke. The aim of the present research was to study the sensitivity and specificity of Head Impulse, Nystagmus, Skew deviation (HINTS) battery for diagnosis of stroke in patients with acute-onset first episode of spontaneous vertigo. Materials and Methods: Seventy-five patients who visited outpatient department or admitted between August 2014 and April 2016 with acute-onset first episode of spontaneous vertigo were included. Each patient was subjected to bedside oculomotor tests and HINTS. All patients underwent magnetic resonance imaging (MRI) of the brain. Stroke was diagnosed by MRI brain. If initial MRI brain was normal and still clinical signs favor stroke, repeat MRI brain-diffusion-weighted imaging study was done at 72 h after symptom onset to confirm the diagnosis. The sensitivity, specificity, positive predictive value, negative predictive value, accuracy and Youden's Index were used to quantify the diagnostic efficiency of HINTS at presentation against final MRI. Results: Patients presented with acute-onset first episode of spontaneous vertigo, HINTS battery was found to be more sensitive than the initial MRI of the brain done in first 24 h in diagnosing stroke (97.1 % Vs 82.9%). The specificity of the initial MRI of the brain and HINTS battery was 100.0 % and 80.0% respectively. Conclusions: The HINTS battery was more sensitive than the initial MRI of the brain in diagnosing stroke in first 24 h in patients presented with acute-onset first episode of spontaneous vertigo.






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