Research in Vestibular Science

Diagnostic Criteria and Differential Diagnosis of Hemodynamic Orthostatic Dizziness/Vertigo: Hyun Ah Kim, Ji-Soo Kim; Res Vestib Sci. 2020;19(2):35-41. Published online June 15, 2020; DOI: https://doi.org/10.21790/rvs.2020.19.2.35

5,139 View
185 Download
1 Crossref

We summarized recent diagnostic criteria for hemodynamic orthostatic dizziness/vertigo included in the International Classification of Vestibular Disorders (ICVD) in this paper. The aim of defining diagnostic criteria of hemodynamic orthostatic dizziness/vertigo is to help clinicians to understand the terminology related to orthostatic dizziness/vertigo and to distinguish orthostatic dizziness/vertigo due to global brain hypoperfusion from that caused by other etiologies. Detailed history taking and measurements of orthostatic blood pressure and heart rate are important for the screening and documentation of orthostatic hypotension or postural tachycardia syndrome to establish the diagnosis of hemodynamic orthostatic dizziness/vertigo.

Citations

Citations to this article as recorded by

Posterior Inferior Cerebellar Artery Stenosis Presenting as Recurrent Orthostatic Dizziness
Seongjin Jeon, Ji-Yun Park, Jong-min Lee, Seulgi Hong
Research in Vestibular Science.2022; 21(2): 53. CrossRef

Positional Hemiseesaw Nystagmus in Ataxia with Oculomotor Apraxia Type 2 due to a Novel Senataxin Gene Mutation: A New Phenotype: Sung-Hee Kim, Ja-Hyun Jang, Ji-Soo Kim; Res Vestib Sci. 2020;19(1):12-15. Published online March 15, 2020; DOI: https://doi.org/10.21790/rvs.2020.19.1.12

4,601 View
48 Download
1 Crossref

Abstract PDF Supplementary Material

Ataxia with ocular motor apraxia type 2 (AOA2) is an autosomal recessive disorder that is characterized by adolescent-onset gait ataxia, peripheral neuropathy, ocular apraxia, and cerebellar atrophy. A 19-year-old male with AOA2 from a novel SETX mutation showed distinct oculomotor abnormalities that included spontaneous and gaze-induced downbeat nystagmus, impaired smooth pursuit, and reversed catch-up saccades during horizontal head impulse tests, as well as peripheral neuropathy involving the lower extremities and mild slowing of frontal processing. He also showed positional hemiseesaw nystagmus in the supine and straight head-hanging positions. Positional hemiseesaw nystagmus is a new manifestation of hereditary cerebellar ataxia and may be explained by a gravity-dependent position-induced error in estimating the tilt in the roll plane due to dysfunction of the tilt-estimator circuit.

Citations

Citations to this article as recorded by

A Case of AOA2 With Compound Heterozygous SETX Mutations
Hee Jin Chang, Ryul Kim, Minchae Kim, Jangsup Moon, Man Jin Kim, Han-Joon Kim
Journal of Movement Disorders.2022; 15(2): 178. CrossRef

Positional Hemiseesaw Nystagmus in Ataxia with Oculomotor Apraxia Type 2 due to a Novel Senataxin Gene Mutation: A New Phenotype: Sung-Hee Kim, Ji-Soo Kim; Received July 24, 2018 Accepted September 14, 2018 Published online September 14, 2018; [Accepted]

1,329 View
1 Download

Abstract: Ataxia with ocular motor apraxia type 2 (AOA2) is an autosomal recessive disorder that is characterized by adolescent-onset gait ataxia, peripheral neuropathy, ocular apraxia, and cerebellar atrophy. A 19 year-old male with AOA2 from a novel SETX mutation showed distinct oculomotor abnormalities that included spontaneous and gaze-induced downbeat nystagmus, impaired smooth pursuit, and reversed catch-up saccades during horizontal head impulse tests, as well as peripheral neuropathy involving the lower extremities and mild slowing of frontal processing. He also showed positional hemiseesaw nystagmus in the supine and straight head-hanging positions. Positional hemi-seesaw nystagmus is a new manifestation of hereditary cerebellar ataxia and may be explained by a gravity dependent position-induced error in estimating the tilt in the roll plane due to dysfunction of the tilt-estimator circuit.

Isolated Infarction of Anterior Cerebellar Vermis: Sung-Hee Kim, Ji-Soo Kim; Res Vestib Sci. 2016;15(4):147-150. Published online December 12, 2016; DOI: https://doi.org/10.21790/rvs.2016.15.4.147

15,972 View
184 Download
1 Crossref

Abstract PDF

The anterior cerebellar vermis has been known to act in coordination of gait and postural adjustment of the trunk and legs. However, oculomotor abnormalities in an isolated anterior vermian lesion have not been described in the literature. A 59-year-old man presented with acute non-rotatory dizziness and disequilibrium. Neuro-ophthalmologic examination found impaired smooth pursuit and hypometric saccades in the contralesional direction, and disconjugate ipsiversive ocular torsion, but without spontaneous or gaze-evoked nystagmus. Imaging study showed an infarction restricted to the rostral end of right cerebellar vermis involving the lingual and central lobules. The anterior cerebellar vermis participates in the maintenance of axial posture and gait, and also in the control of ocular motor and vestibular systems.

Citations

Citations to this article as recorded by

Free water imaging unravels unique patterns of longitudinal structural brain changes in Parkinson’s disease subtypes
Abigail E. Bower, Sophia J. Crisomia, Jae Woo Chung, Justin P. Martello, Roxana G. Burciu
Frontiers in Neurology.2023;[Epub] CrossRef

Classification of Vestibular Symptoms: Towards an International Classification of Vestibular Disorders: Jae-Han Park, Ji-Soo Kim; Res Vestib Sci. 2013;12:S49-S52. Published online June 1, 2013

1,180 View
47 Download

Abstract PDF: Explicit and uniform criteria are prerequisite for diagnosis and research of the vestibular disorders. Based on this consensus, in 2006, Barany Society initiated a committee for classification to pursue development of the first International Classification of Vestibular Disorders. To facilitate this process, the committee first defined the key vestibular symptoms as a basis for a subsequent classification of specific vestibular disorders. This is to review the committee’s definition on the vestibular symptoms, which was published in 2009.

Search