Caloric and video head impulse test dissociated results in dizzy patients

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dc.contributor.authorWaissbluth, Sofia
dc.contributor.authorSepulveda, Valeria
dc.contributor.authorLeung, Jai-Sen
dc.contributor.authorOyarzun, Javier
dc.date.accessioned2025-01-20T21:01:56Z
dc.date.available2025-01-20T21:01:56Z
dc.date.issued2022
dc.description.abstractIntroductionWe are now able to detect abnormalities for any semicircular canal with the use of the video head impulse test (vHIT). Prior to the vHIT, the gold standard for unilateral canal paresis of the lateral canal was considered the caloric test. Clinical cases where the caloric test and vHIT are discordant are not uncommon. MethodsRetrospective study. All consecutive cases of dizziness seen from 11/2020 to 12/2021 for which the patient underwent both caloric and vHIT tests performed within 10 days, were reviewed. Patients with discordant results were included. We evaluated the caloric response, vHIT gains for all canals and saccades, with and without gain abnormalities. ResultsWe included 74 cases of dizziness with dissociated results. The most common finding was a normal caloric response with abnormal vHIT results (60.8%); the main abnormal finding on vHIT was the presence of saccades. In this group, 37.7% of patients had normal gains and refixation saccades. In addition, the most found low gain was for the posterior canal. The main diagnosis in this group was vestibular migraine. For the group with unilateral caloric paresis and normal vHIT gain in the lateral canal, the main diagnosis was Meniere's disease. DiscussionThe most common disorders with discordant results were Meniere's disease and vestibular migraine. The caloric test and vHIT are complementary and combining both tests provide greater clinical information. Further research is needed to understand refixation saccades with normal gains.
dc.fuente.origenWOS
dc.identifier.doi10.3389/fneur.2022.1000318
dc.identifier.issn1664-2295
dc.identifier.urihttps://doi.org/10.3389/fneur.2022.1000318
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92981
dc.identifier.wosidWOS:000868275700001
dc.language.isoen
dc.revistaFrontiers in neurology
dc.rightsacceso restringido
dc.subjectvertigo
dc.subjectdizziness
dc.subjectcaloric test
dc.subjectvideo head impulse test
dc.subjectvestibular disease
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleCaloric and video head impulse test dissociated results in dizzy patients
dc.typeartículo
dc.volumen13
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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