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Smartphone telemedical emergency department consults for screening of nonacute dizziness.

Smartphone telemedical emergency department consults for screening of nonacute dizziness.

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Smartphone telemedical emergency department consults for screening of nonacute dizziness.

Laryngoscope. 2018 Nov 26;:

Authors: Shah MU, Lotterman S, Roberts D, Eisen M

Abstract
OBJECTIVES/HYPOTHESIS: Each year, the United States spends over $4 billion on emergency department visits for evaluation of dizziness. Benign paroxysmal positional vertigo (BPPV) is a common cause of dizziness that can easily be diagnosed by observing characteristic eye movements during the Dix-Hallpike test (DHT). The DHT is easily performed; however, interpretation requires more advanced training. This may be part of the reason it is not commonly performed in emergency departments, and instead, patients undergo costly imaging tests. We evaluated whether smartphone-based video recordings of DHT could be assessed telemedically for screening of nonacute dizziness.
STUDY DESIGN: Feasibility study.
METHODS: Dizzy patients underwent objective vestibular testing, but also had videos of their eye movements recorded via a smartphone during the DHT. The videos were remotely reviewed by two neuro-otologists for BPPV screening and were compared to objective and in-person exam findings.
RESULTS: Overall, 30 dizzy patients were evaluated with seven cases of BPPV. The sensitivity for diagnosing BPPV via a smartphone-recording of eye movements of the DHT was 92.86%, with a specificity of 100% and a negative predictive value of 97.87%.
CONCLUSIONS: Our initial proof-of-concept study shows that remote screening of BPPV is possible with high specificity. Because the DHT is easily taught, having a remote otolaryngologist interpret the resulting eye movements may increase usage of the test and may lead to cost savings.
LEVEL OF EVIDENCE: 4 Laryngoscope, 2018.

PMID: 30478898 [PubMed - as supplied by publisher]

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