Nystagmus using Video-Oculography in Psychiatric patients

Kiyomizu, Kensuke; Nakayama, Meiho; Torihara, Koji; Tono, Tetsuya

doi:10.3757/jser.67.6

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…But nystagmus tests have not been carried out routinely on psychiatric patients. In 2005, we started investigating the frequency and characteristics of nystagmus by video-oculography in 227 psychiatric patients (144 men, 83 women) (age range 16-100; mean age ± SD 62.5 ± 14.0 years) [1]. Nystagmus was observed in 56 (24.7%) of 227 patients on gaze, positional and positioning nystagmus tests.…”

Section: Introductionmentioning

confidence: 99%

Neuro-otological findings in psychiatric patients with nystagmus

Kiyomizu

Matsuda

Torihara

et al. 2011

Eur Arch Otorhinolaryngol

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To evaluate whether neuro-otological tests have clinical significance in psychiatric patients with nystagmus who have inner ear and/or brain dysfunction, we performed neuro-otological tests on 56 psychiatric patients with nystagmus (38 men, 18 women) (age range 40-97; mean age ± SD 61.6 ± 10.5 years). Patients were classified according to the underlying diseases: schizophrenia (25 cases), organic psychiatric disorders (14 cases), alcoholism (16 cases) and excited mental retardation (1 case). Caloric test results showed a normal response in 30 (75%) cases, right canal paresis (CP) in 4 (10%), left CP in 4 (10%) and bilateral CP in 2 (5%). Therefore, 10 (25%) cases had CP. The results of the eye tracking tests (ETT) were sorted into five categories: 4 (8.2%) cases smooth (normal), 8 (16.3%) slightly saccadic, 28 (57.1%) saccadic, 8 (16.3%) ataxic, and 1 (2%) no tracking ability. Therefore, 45 (91.8%) cases had abnormal ETT results. Pure tone audiometry showed normal hearing in 24 (47.1%) cases, right hearing loss (HL) in 3 (5.8%), left HL in 3 (5.8%) and bilateral HL in 21 (41.2%). Therefore, 27 (52.9%) cases had HL. The patients were classified as organic or functional groups. In ETT there was a significant difference between these two groups. These results indicate that neuro-otological tests with video-oculography are very important not only for neurological or neuro-otological patients with nystagmus, but also for psychiatric patients with nystagmus.

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Section: Introductionmentioning

confidence: 99%

Neuro-otological findings in psychiatric patients with nystagmus

Kiyomizu

Matsuda

Torihara

et al. 2011

Eur Arch Otorhinolaryngol

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“…For example, Kiyomizu et al studied the presence of nystagmus in patients with diagnosed psychiatric problems using video-oculography [17]. Although their methodology is not clear in terms of the number of positions tested or use of mental tasking, the authors report that positional nystagmus was observed in only 21.1% (48) of cases out of 227 patients with psychiatric disease.…”

Section: Introductionmentioning

confidence: 99%

Positional Nystagmus in Patients Evaluated for Dizziness and Imbalance

Roberts¹,

Bittel

Gans

2016

Advances in Otolaryngology

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There is variability in the literature regarding the presence of positional nystagmus in healthy participants with reportedly normal vestibular and central nervous system function. This ranges from 7.5% to 88% and raises an important clinical question. If 88% of healthy participants have positional nystagmus then how is the clinician to interpret the presence of positional nystagmus in a patient presenting with dizziness and/or disequilibrium? The primary purpose of this investigation was to examine the prevalence and characteristics of positional nystagmus in patients evaluated specifically for dizziness and imbalance. Data was collected using retrospective chart review. 200 charts were randomly selected from all patients seen for evaluation of dizziness and imbalance over a period of eight months. Clinicians independently reviewed the data from positional testing for each chart. Nystagmus was present if there was a clear slow and fast phase component and there were three beats in a 10 s time window. Nystagmus direction and intensity data were collected. Results indicate positional nystagmus is present in 10.5% to 21% of patients evaluated for dizziness and imbalance. Use of liberal criteria for determining presence of positional nystagmus (i.e., 3 beats in 20 sec) may account for higher prevalence rates across other studies.

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Nystagmus using Video-Oculography in Psychiatric patients

Cited by 2 publications

References 13 publications

Neuro-otological findings in psychiatric patients with nystagmus

Neuro-otological findings in psychiatric patients with nystagmus

Positional Nystagmus in Patients Evaluated for Dizziness and Imbalance

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