Asunto(s)
Antibacterianos/efectos adversos , Enfermedades Vestibulares/inducido químicamente , Adulto , Aminoglicósidos , Antibacterianos/farmacología , Oído Interno/efectos de los fármacos , Femenino , Humanos , Formación Reticular/efectos de los fármacos , Formación Reticular/fisiopatología , Enfermedades Vestibulares/fisiopatologíaRESUMEN
19 patients have been checked by the ENG control examination who had demonstrated during first examination lack of evoked Ny in one direction. The control examinations have been conducted from a few months to 4 years after the first ENG examination. Obtained results showed out that lack of evoked Ny in one direction can be persist or can be improved by going into symmetrical directional preponderance, after that in some cases coming to restitution and integrum. It can be explained by the degree of brainstem reticular substance lesion. The obtained results from the study allow to conclude, that lack of evoked Ny in one direction and coming after it the symmetrical directional preponderance have a topo-diagnostic value.
Asunto(s)
Electronistagmografía , Movimientos Oculares/fisiología , Adolescente , Adulto , Anciano , Potenciales Evocados/fisiología , Femenino , Humanos , Masculino , Persona de Mediana EdadRESUMEN
23 years old woman with sudden deafness and ipsilateral lack of rapid phase caloric nystagmus was described. The necessity of multi-discipline examination was stressed.
Asunto(s)
Neoplasias Cerebelosas/complicaciones , Pérdida Auditiva Súbita/etiología , Meningioma/complicaciones , Adulto , Neoplasias Cerebelosas/diagnóstico , Femenino , Pérdida Auditiva Súbita/diagnóstico , Humanos , Meningioma/diagnósticoRESUMEN
Hearing in 60 diabetics aged 20-70 years were studied by means of tonal, verbal and B'ekèsy audiometry, SISI tests, Fowler tests, stapedius reflex and tone decay tests. The material was grouped according to the diabetes type, chronicity of disease, age, sex and presence of retino- and polyneuropathy. The results proved that diabetes may cause the progressive form of hearing loss which depend of chronicity of disease and age of patients. Sometimes the hypo-acuity may be found in the recent form of diabetes, rarely as sudden deafness. The hearing impairment is more frequent among the retino- and polyneuropathy patients. The localisation of lesions may be in all part of hearing pathways from the labyrinth to cortical areas.
Asunto(s)
Diabetes Mellitus Tipo 1/complicaciones , Diabetes Mellitus Tipo 2/complicaciones , Pérdida Auditiva/epidemiología , Adulto , Anciano , Neuropatías Diabéticas/complicaciones , Retinopatía Diabética/complicaciones , Femenino , Pruebas Auditivas , Humanos , Masculino , Persona de Mediana EdadAsunto(s)
Glicerol , Enfermedad de Meniere/diagnóstico , Adulto , Reacciones Falso Negativas , Femenino , Humanos , Masculino , Persona de Mediana EdadAsunto(s)
Tronco Encefálico/irrigación sanguínea , Trastornos Cerebrovasculares/complicaciones , Vestíbulo del Laberinto , Adulto , Femenino , Humanos , Enfermedades del Laberinto/diagnóstico , Enfermedades del Laberinto/etiología , Masculino , Persona de Mediana Edad , Insuficiencia Vertebrobasilar/complicacionesAsunto(s)
Carcinoma de Células Escamosas/diagnóstico , Carcinoma/diagnóstico , Neoplasias Laríngeas/diagnóstico , Neoplasias Primarias Múltiples/diagnóstico , Adulto , Anciano , Carcinoma/cirugía , Carcinoma de Células Escamosas/cirugía , Femenino , Humanos , Laringectomía , Masculino , Persona de Mediana Edad , Neoplasias Primarias Múltiples/cirugíaAsunto(s)
Adaptación Fisiológica , Oído/fisiología , Ruido , Estimulación Acústica/métodos , Animales , CobayasAsunto(s)
Histiocitoma Fibroso Benigno , Neoplasias Nasofaríngeas , Niño , Histiocitoma Fibroso Benigno/tratamiento farmacológico , Histiocitoma Fibroso Benigno/radioterapia , Humanos , Masculino , Neoplasias Nasofaríngeas/tratamiento farmacológico , Neoplasias Nasofaríngeas/radioterapia , Testosterona/uso terapéuticoRESUMEN
The aim of these investigations was to study the effect of kanamycin on the nucleus ventralis cochleae in guinea pigs. The evaluation of the results was based on the karyometric method which is a very sensitive criterion of the cell activity. In the same animals, the microphonic potential (PM) and the nerve action potential (AP) were measured in order to detect changes in the peripheral auditory system. The results were statistically analysed. The studies showed that despite marked changes in the PM and AP values, there were no changes in the cell volume in the nucleus ventralis cochleae. The findings indicate that the injuries induced by kanamycin are localized peripherally and the later central morphological changes reported in the literature can be assumed to be secondary resulting from the damage to the peripheral auditory system by kanamycin.