Isolierter einseitiger Vestibularisausfall bei Toxoplasmose

Meran, A.; Gyr, K.; Kocher, R; Haensch, G.; Pfaltz, C. R.

doi:10.1007/bf00453926

Arch Otorhinolaryngol

1974

DOI: 10.1007/bf00453926

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Isolierter einseitiger Vestibularisausfall bei Toxoplasmose

A. Meran

K. Gyr

R Kocher

et al.

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Cited by 4 publications

(1 citation statement)

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“…The infective etiology of APV has long been proposed on the basis of its frequent occurrence in epidemics (2,7,8) and its association with respiratory tract infections (1,2,(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19). Several studies have provided serological evidence of recent viral upper respiratory tract infections, particularly those caused by influenza virus A, influenza virus B, and adenoviruses, as well as infections caused by herpes simplex virus, cytomegalovirus, Epstein-Barr virus, rubella virus, and parainfluenza virus (20)(21)(22)(23)(24).…”

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confidence: 99%

Study of the Comorbidity Between Cases of Acute Peripheral Vestibulopathies and COVID-19

Charpiot

Hautefort

Jourdaine

et al. 2021

Otology &Amp; Neurotology

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Importance:An infective etiology of acute peripheral vestibulopathy (APV) has long been hypothesized. In the context of coronavirus disease 2019 (COVID-19), we examined the possible comorbidity between these two entities.Objectives:APV is the second most common cause of vestibular disorders and results from a sudden and unilateral loss of vestibular inputs. The characteristic signs and symptoms include sudden and prolonged vertigo, absence of auditory symptoms, and absence of other neurological symptoms. An infective etiology of APV has long been hypothesized on the basis of its association with respiratory tract infections and its frequent occurrence in epidemics. Possible comorbidity with herpes simplex virus type 1 reactivation or influenza virus infection has also been proposed. This study was designed to assess the possible comorbidity between APV and COVID-19.Design/setting/participants:Quantification of the number of hospital admissions for APV over the period from February to May 2020 was carried out in 5 French hospitals. A comparison with 2018 and 2019 entries over the same period was made. Comorbidity between APV and COVID-19 infection was investigated.Results:No significant increase in admission for APV was noticed over the examination period. No significant difference was noticed among hospitals located in COVID-19 high- and low-risk zones for SARS-CoV-2. No significant increase in the severity of the APV cases was noticed. No case of comorbidity between APV and SARS-CoV-2 infection was reported. Based on our observations, no correlation was made between APV and COVID-19.Conclusion:Based on our observations, COVID-19 is not statistically correlated with APV.

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mentioning

confidence: 99%

Study of the Comorbidity Between Cases of Acute Peripheral Vestibulopathies and COVID-19

Charpiot

Hautefort

Jourdaine

et al. 2021

Otology &Amp; Neurotology

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Der akute Vestibularisausfall

Meran¹,

Pfaltz²

1975

Arch Otorhinolaryngol

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Acute vestibular paralysis may not be considered as a nosologic entity but as a syndrome. Symptomatology (vertigo, spontaneous and provoked vestibular nystagmus, absence of cochlear signs) shows an uniform picture. The results of the caloric test as well as the nystagmic responses induced by galvanic stimulation and the development of central vestibular compensation however indicate that the site of the lesion is not only confined to the labyrinth but may also occur at the level of the peripheral neuron or even the vestibular nuclei. Etiology and pathology are still vague. Our own clinical observations as well as the scarce data in literature about morphological and experimental studies suggest in a way that vascular and infectious disorders are of importance as primary releasing factors. Hypothetically, vestibular loss of function may either be caused by a disturbance of labyrinthine microcirculation, initiated in a great majority of cases by infection, or by a direct lesion of the peripheral neuron as well as the vestibular nuclei. Retrolabyrinthine lesions may be due to menigoencephalitis, caused by a neurotropic virus or other infectious agents such as Toxoplasma gondii. Acute vestibular paralysis should be strictly distinguished from vestibular neuronitis. While vestibular paralysis is a syndrome, vestibular neuronitis must be considered as a nosologic entity, including a lesion of the peripheral neuron as well as evidence of an infectious event.

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Experimental infection of the guinea pig inner ear with toxoplasma gondii

Falser

1981

Arch Otorhinolaryngol

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Based on the question whether toxoplasma gondii is a potential pathogenetic factor in sudden deafness and vertigo (especially in the acquired form of Toxoplasmosis) we started a series of investigations, dealing with direct, local, hematogenous, and intracisternal infection of the guinea pig cochlea with toxoplasma gondii. Three of ten directly inoculated and one of five hematogenously infected guinea pigs showed a severe labyrinthitis in electron and light microscopy. Thus, we could demonstrate that toxoplasma gondii is a potent pathogenetic factor in acute inner ear disturbances in laboratory animals. Toxoplasmosis should always be considered in cases with sudden deafness and vertigo without obvious other cause. With a specific therapy the labyrinthine disturbances can apparently be successfully treated.

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Isolierter einseitiger Vestibularisausfall bei Toxoplasmose

Cited by 4 publications

References 9 publications

Study of the Comorbidity Between Cases of Acute Peripheral Vestibulopathies and COVID-19

Study of the Comorbidity Between Cases of Acute Peripheral Vestibulopathies and COVID-19

Der akute Vestibularisausfall

Experimental infection of the guinea pig inner ear with toxoplasma gondii

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