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1.
Int. arch. otorhinolaryngol. (Impr.) ; 17(1): 57-61, Jan.-Mar. 2013. ilus, tab
Article in English | LILACS | ID: lil-662527

ABSTRACT

Introduction: Cochlear implants may guarantee sound perception and the ability to detect speech at a close-to-normal hearing intensity; however, differences have been observed among implantees in terms of performance on discrimination tests and speech recognition. Objective: To identify whether patients with post-meningitis deafness perform similarly to patients with hearing loss due to other causes. Method: A retrospective clinical study involving post-lingual patients who had been using Nucleus-22 or Nucleus-24 cochlear implants for at least 1 year. These patients were matched with respect to age (± 2 years), time since the onset of deafness (± 1 year), and the duration of implant use with implant users who had hearing loss due to other causes. Speech perception was assessed using the Portuguese version of the Latin-American Protocol for the Evaluation of Cochlear Implants. Results: The sample consisted of 52 individuals (26 in each of the 2 groups). The post-meningitic group had a median of 18.5 active electrodes. The group with hearing loss due to other causes had a median of 21, but no significant statistical difference was observed (p = 0.07). The results of closed- and open-set speech recognition tests showed great variability in speech recognition between the studied groups. These differences were more pronounced for the most difficult listening tasks, such as the medial consonant task (in the vowel-consonant-vowel format). Conclusion: Cochlear implant recipients with hearing loss due to bacterial meningitis, who had been using the device for 1 year performed more poorly on closed- and open-set speech recognition tests than did implant recipients with hearing loss due to other causes...


Subject(s)
Humans , Male , Female , Cochlear Implants/microbiology , Meningitis, Bacterial/etiology , Prognosis , Hearing Loss/complications , Hearing Loss/rehabilitation , Retrospective Studies , Speech Perception
2.
Rev. otorrinolaringol. cir. cabeza cuello ; 65(3): 165-172, dic. 2005. tab
Article in Spanish | LILACS | ID: lil-437974

ABSTRACT

Se pretende revisar la experiencia latinoamericana con el implante coclear. Para ello se envió un cuestionario a todos los grupos latinoamericanos de implante coclear. Las principales preguntas fueron: (1) tipo de implante; (2) técnica para colocar y fijar el implante, incisión y cierre; (3) migración, exposición y fallas; y (4) erosión de la piel e infección. Un total de 41 grupos participaron en el estudio. El número total de implantes fue de 3.773, representando el 92 por ciento de los casos latinoamericanos. De los 3.773 implantes, 5 eran prototipos experimentales por lo tanto 3.768 se consideraron para los cálculos. Las complicaciones fueron las siguientes: Migración: 13 casos (0,35 por ciento), relacionada principalmente a receptores cerámicos (p=0,016). Expulsión: 15 casos (0,4 por ciento), relacionados principalmente a implantes grandes (p=0,0103). Fallas de implantes secundarias a trauma: 18 casos (0,48 por ciento) (9 en implantes cerámicos y 9 en blandos). Falla espontánea: 86 casos (2,28 por ciento), 74/1.293 (5,72 por ciento) en cerámicos y 11/2.418 (0,45 por ciento) en blandos (p=0,0001). El implante más confiable fue el Nucleus 24, con una tasa de fallas de 0,3 por ciento. Infección: 26 casos (0,7 por ciento), sin relación significativa con tipo de implante. Se concluye planteando que complicaciones como migración, expulsión, inflamación de piel y fallas de implantes se relacionan principalmente con el tipo de implante. Técnica meticulosa más que abordajes específicos son la clave para evitar complicaciones. Los resultados latinoamericanos son comparables con los reportados recientemente en la literatura.


Subject(s)
Humans , Cochlear Implantation/statistics & numerical data , Cochlear Implantation/methods , Latin America , Postoperative Complications/epidemiology , Surveys and Questionnaires , Prosthesis Failure , Cochlear Implantation/adverse effects , Cochlear Implants/microbiology , Inflammation , Skin/injuries , Replantation
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