Subclassification of vestibular disorders by means of statistical analysis in caloric labyrinth testing

Düwel, P.; Ilgner, Justus; Engelke, Jan-Christian; Westhofen, Martin

doi:10.1080/00016480310015182

Cited by 10 publications

(5 citation statements)

References 9 publications

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“…Hence, from the 120 patients evaluated, 14.2% were defined as suffering from unilateral peripheral vestibular disease. Therefore, it seems that vestibular diseases as a primary cause for vertigo is not common among aged individuals (3,(18)(19). Bilateral weakness or no caloric response were observed in 12/33 (36%) of the tests with abnormal results.…”

Section: Discussionmentioning

confidence: 99%

“…It is characterized by short vertigo periods related to changes of cephalic movement (18). Previous studies mention a BPPV incidence ranging from 20% to 34% among aged individuals (23)(24).…”

Section: Discussionmentioning

confidence: 99%

“…At this age range, several factors may lead to instability, such as cardiovascular, neurological and skeletal-muscular diseases, diabetes, postural hypotension and the use of several kinds of drugs, including diuretics, anticonvulsants, antihypertensives, anxiolytics and antidepressants (17)(18)(19)(20)(21). The fact that most of the caloric test results are within the normal range corroborates the theory of multifactorial instability for aged individuals, since caloric testing only evaluates the lateral semicircular canal, which is specifically related to vestibular function.…”

Section: Discussionmentioning

confidence: 99%

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Presbivertigem como causa de tontura no idoso

Felipe

Cunha

et al. 2008

Pró-Fono R. Atual. Cient.

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INTRODUÇÃO: tontura é queixa freqüente na população geriátrica e interfere na qualidade de vida desses indivíduos. OBJETIVO: descrever as causas de tontura, correlacionar sintomas e alterações na prova calórica e verificar o impacto da presbivertigem como fator primário de tontura em população de idosos. MÉTODO: revisão do prontuário de 132 pacientes com mais de 60 anos e distúrbio do equilíbrio corporal, atendidos no ambulatório de Otoneurologia do Hospital das Clínicas da UFMG, no período de 1998 a 2007. As variáveis analisadas foram: dados epidemiológicos, história clínica, doenças associadas e resultado da prova calórica. Casos de vertigem de posição e suspeita de lesão central foram excluídos da análise. RESULTADOS: A amostra constou de 120 pacientes. A idade média foi de 70 anos, sendo 87 (71%) mulheres. Dentre os tipos de tontura, vertigem de alguns minutos de duração e freqüência diária foi mais freqüente. Em relação ao resultado da prova calórica, exame normal foi observado em 73% e, dentre os resultados alterados, hiporreflexia bilateral (presbivertigem) foi observada em 8%. Correlacionando-se com o tipo de tontura, hiporreflexia bilateral associou-se com instabilidade postural (p = 0,006; IC = 2 - 419). CONCLUSÃO: tontura no idoso tem causa multifatorial. Perda da função vestibular periférica pode estar relacionada à presbivertigem e deve ser considerada em pessoas idosas com desequilíbrio. Distúrbios metabólicos, psíquicos, disautonômicos, ortopédicos, visuais e de propriocepção podem ser causa de tontura em idosos com exame vestibular normal.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Presbivertigem como causa de tontura no idoso

Felipe

Cunha

et al. 2008

Pró-Fono R. Atual. Cient.

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“…Despite this shortfall, the caloric test is assumed to be the optimal instrument to trace ototoxicity, but might result in an underestimation of the overall ototoxic effect of tobramycin. Despite high sensitivity rates in differentiating between central and peripheral vestibular loss, the capacity to differentiate between peripheral vestibular disorders is low and estimated to be 6% [13]. In this study, we considered peripheral vestibular hypofunction to be caused by tobramycin exposure if no other possible vestibular disorders were present according to the questionnaire.…”

Section: Methodsmentioning

confidence: 98%

Vestibulotoxicity as a consequence of systemically administered tobramycin in cystic fibrosis patients

Scheenstra

Rijntjes²,

Tavy

et al. 2009

Acta Oto-Laryngologica

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Peripheral vestibular loss was found in seven patients (7/23 = 30.4%). Central vestibular loss was found in one patient. Analysis of the 19 completed questionnaires showed that 12 patients (12/19 = 63.2%) did not experience dizziness and 3 patients (3/19 = 15/8%) experienced specific vestibular symptoms. The results of the questionnaire could not predict the results of ENG with caloric irrigation. Physical examination showed no abnormalities in any patients. No age- or dose-related predictive factors were found.

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“…16 Caloric tests (in which bithermal fluids are introduced into the ear to induce nystagmus) investigate the integrity of the oculovestibular reflex, which is mediated by the superior vestibular nerve. 17 Abnormal caloric tests may be a result of an AS of this nerve, however, caloric tests may be normal if the AS is associated with the inferior branch of the vestibular nerve. 18 Caloric asymmetry increases with increased tumour size.…”

Section: Vestibular Dysfunctionmentioning

confidence: 99%

Comparison of FIESTA and gadolinium‐enhanced T1‐weighted sequences in magnetic resonance of acoustic schwannoma

Rigby¹

2006

Radiographer

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Acoustic schwannomas (AS) are a treatable cause of sensorineural hearing loss (SNHL). Currently, the gold standard magnetic resonance (MR) examination for exclusion of acoustic schwannoma is gadolinium‐enhanced T1‐weighted images of the cerebropontine angles (CPA). The FIESTA (fast imaging employing steady‐state acquisition) sequence is a true‐FISP (free induction steady‐state precession) sequence that provides high‐resolution fluid‐bright images of the CPAs and basal cisterns. The T1‐weighted sequence adds cost and time to the examination, and possibility of contrast medium reaction exists. This study of 50 patients compared the gadolinium‐enhanced T1‐weighted images and FIESTA images. The hypothesis was that the FIESTA sequence could repIACe the gadolinium‐enhanced T1‐weighted images for the diagnosis of AS. The results showed that in 98% of cases, this was possible. The conclusion was that when the FIESTA sequence does not demonstrate AS, this sequence may be employed in isolation. However, gadolinium‐enhanced images should be employed when pathology is seen and to follow‐up post‐surgical patients.

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Subclassification of vestibular disorders by means of statistical analysis in caloric labyrinth testing

Cited by 10 publications

References 9 publications

Presbivertigem como causa de tontura no idoso

Presbivertigem como causa de tontura no idoso

Vestibulotoxicity as a consequence of systemically administered tobramycin in cystic fibrosis patients

Comparison of FIESTA and gadolinium‐enhanced T1‐weighted sequences in magnetic resonance of acoustic schwannoma

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