Surgical Treatment and Rehabilitation of Prelingually and Perilingually Deafened Children and Adults with the Nucleus Multichannel Cochlear Implant

1994 ◽  
Vol 73 (3) ◽  
pp. 169-175 ◽  
Author(s):  
Juan Manuel García ◽  
Clemencia Barón de Otero ◽  
Jorge García ◽  
Augusto Peñaranda ◽  
Claudia Niño ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Cochlear Implant ◽  
Surgical Complication ◽  
Rehabilitation Program ◽  
Speech Discrimination ◽  
Congenital Hearing Loss ◽  
Open Set ◽  
Speech Reception ◽  
Discrimination Testing ◽  
Deaf Adults

We began our program in September 1992, using the Nucleus 22 Channel Cochlear Implant. To date, we have operated on four patients, one child with congenital hearing loss, two prelinguistically deaf adults and one perilingually deaf adult. Our results have shown a significant increase in auditory and speech reception and perception skills in the child. The perilingually deaf adult is able to understand speech in open set speech discrimination testing and, although we do not expect open set speech discrimination in the prelinguistically deaf adults, to date their results have been satisfactory. The two prelingually deaf adults are in an audiological rehabilitation program. Their response in prosodic aspects of speech and lipreading ability with sound have improved significantly. The only surgical complication was an infection of the flap in the child, but it was treated satisfactorily with I.V. penicillin.

Auditory Training and Speech Discrimination

1970 ◽  
Vol 13 (4) ◽  
pp. 839-855 ◽  
Author(s):  
Daniel L. Bode ◽  
Herbert J. Oyer
Keyword(s):  
Auditory Discrimination ◽  
Auditory Training ◽  
Speech Discrimination ◽  
Training Material ◽  
Closed Set ◽  
Open Set ◽  
Speech Reception ◽  
Hearing Aid Use ◽  
Response Formats ◽  
Respective Type

Thirty-two adults with sensorineural hearing loss participated in a short-term auditory training program. The listeners were assigned to one of four matched groups which were equivalent in pure-tone sensitivity, speech-reception threshold, PB discrimination in quiet and in noise, intelligence, age, education, duration of loss, sex, and hearing-aid use. Each group responded during training to a different combination of listening condition (S/N varied or S/N-constant) and speech material (closed-set or open-set response formats). Statistically significant increase in auditory discrimination was shown on the W-22 and Rhyme tests, while the increase revealed by the Semi-Diagnostic test was not significant. Results indicated that the two listening conditions were equally effective. Similarly, the two types of training material brought about equivalent increases in overall speech discrimination. Trends suggested that open-set and closed-set training each had most effect on the respective type of speech discrimination. In addition, improvement in auditory discrimination was associated with those individuals who were oldest, with those who had highest intelligence, and with those who responded to training material at the most intense presentation level. Finally, listeners who reported the most hearing handicap also tended to show the greatest loss in speech reception and in speech discrimination in noise.

scholarly journals Relationship between proximity to a cochlear implant center and early presentation in children with congenital hearing loss

2020 ◽  
Vol 41 (3) ◽  
pp. 314-317
Author(s):  
Yazeed Al-shawi ◽  
Fahad Alrawaf ◽  
Najd Al-Gazlan ◽  
Munahi Al-Qahtani ◽  
Fida Almuhawas
Keyword(s):  
Hearing Loss ◽  
Cochlear Implant ◽  
Congenital Hearing Loss ◽  
Early Presentation

scholarly journals Results for Chinese and English in a Multichannel Cochlear Implant Patient

1987 ◽  
Vol 96 (1_suppl) ◽  
pp. 126-127 ◽  
Author(s):  
S. A. Xu ◽  
R. C. Dowell ◽  
G. M. Clark
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Cochlear Implant ◽  
Chinese Patient ◽  
Cochlear Prosthesis ◽  
Word Test ◽  
Open Set ◽  
Chinese And English ◽  
Speech Tracking

A multichannel cochlear prosthesis was implanted in a Chinese patient who suffered from profound sensory hearing loss. The preoperative Minimal Auditory Capabilities (MAC) battery tests in English, as well as an open set bisyllable word test, an open set sentence test, and speech tracking in Chinese indicated significant improvement of speech perception for both English and Chinese after the operation. Substantial understanding of running speech was possible in both languages without the help of lipreading.

scholarly journals A Case Study Assessing the Auditory and Speech Development of Four Children Implanted with Cochlear Implants by the Chronological Age of 12 Months

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Birgit May-Mederake ◽  
Wafaa Shehata-Dieler
Keyword(s):  
Hearing Loss ◽  
Speech Production ◽  
Free Field ◽  
Sensory Stimulation ◽  
Speech Development ◽  
Speech Discrimination ◽  
Monosyllabic Word ◽  
Open Set ◽  
Word Discrimination ◽  
Grammar Development

Children with severe hearing loss most likely receive the greatest benefit from a cochlear implant (CI) when implanted at less than 2 years of age. Children with a hearing loss may also benefit greater from binaural sensory stimulation. Four children who received their first CI under 12 months of age were included in this study. Effects on auditory development were determined using the German LittlEARS Auditory Questionnaire, closed- and open-set monosyllabic word tests, aided free-field, the Mainzer and Göttinger speech discrimination tests, Monosyllabic-Trochee-Polysyllabic (MTP), and Listening Progress Profile (LiP). Speech production and grammar development were evaluated using a German language speech development test (SETK), reception of grammar test (TROG-D) and active vocabulary test (AWST-R). The data showed that children implanted under 12 months of age reached open-set monosyllabic word discrimination at an age of 24 months. LiP results improved over time, and children recognized 100% of words in the MTP test after 12 months. All children performed as well as or better than their hearing peers in speech production and grammar development. SETK showed that the speech development of these children was in general age appropriate. The data suggests that early hearing loss intervention benefits speech and language development and supports the trend towards early cochlear implantation. Furthermore, the data emphasizes the potential benefits associated with bilateral implantation.

UCSF Multichannel Cochlear Implants

1987 ◽  
Vol 110 ◽  
Author(s):  
Robert A. Schindler ◽  
Dorcas K. Kessler
Keyword(s):  
Clinical Trial ◽  
Cochlear Implant ◽  
Cochlear Implants ◽  
Speech Discrimination ◽  
Monosyllabic Word ◽  
Channel System ◽  
Speech Reception ◽  
Analog System ◽  
One Year ◽  
Channel Unit

AbstractClinical trials with the UCSF/Storz multichannel cochlear implant began in February 1985. The final patient in this series was implanted in June 1986. The objective of the clinical trial was to evaluate the strategies developed by the UCSF implant team through neurophysiological, histopathological, and psychophysical investigations over the past seventeen years. A total of 16 patients were implanted with this four channel unit, a vocoder-based, compressed-analog system. Results are measured with a battery of speech reception tests, including routine audiometric tasks used to evaluate standard clinical populations. Assessments are administered using conventional audiologic procedures. Tests include monosyllabic word recognition (the standard clinical “speech discrimination” list) and the recognition of key words in sentences. Eleven of the 16 patients have now had their one-year postoperative evaluations, permitting observations on their performance over time. Of these 11 patients, ten (91%) are able to obtain a considerable degree of auditory speech recognition. Relative to other cochlear implant projects, this represents an extremely high proportion of the implant population achieving some level of auditory-only speech understanding. The UCSF/Storz clinical trial has helped to clarify and define the specifications for our next generation implant, an elecrically transparent sixteen channel system.

Magnetic resonance imaging versus computed tomography in pre-operative evaluation of cochlear implant candidates with congenital hearing loss

2002 ◽  
Vol 116 (10) ◽  
pp. 804-810 ◽  
Author(s):  
Levent Sennaroglu ◽  
Isil Saatci ◽  
Ayse Aralasmak ◽  
Bulent Gursel ◽  
Ergin Turan
Keyword(s):  
Magnetic Resonance Imaging ◽  
Hearing Loss ◽  
Magnetic Resonance ◽  
Cochlear Implant ◽  
Sensorineural Hearing Loss ◽  
Internal Auditory Canal ◽  
Cochlear Nerve ◽  
Sensorineural Hearing ◽  
Congenital Hearing Loss ◽  
Resonance Imaging

Recent reports indicate that the cochlear nerve may be absent in some cases of congenital sensorineural hearing loss. The aim of this prospective study was to determine the incidence of cochlear nerve anomaly in cochlear implant candidates with congenital hearing loss using magnetic resonance imaging (MRI). Twenty-seven patients with congenital profound bilateral sensorineural hearing loss who were being evaluated for the cochlear implant procedure were studied.These patients had high-resolution computerized tomography (CT), through the petrous bone in axial sections. MRI examinations consisted of T1 and turbo spin echo (TSE) T2-weighted 3 mm axial images, and additional 3D Fourier Transform T2-weighted TSE sequences obtained on three different planes (axial, perpendicular and parallel to the internal auditory canal (IAC) i.e. oblique sagittal and coronal, respectively) for the purpose of cochlear nerve demonstration. Results showed that all of the 14 patients with normal CT of the temporal bone, had four distinct nerves in the distal part of the IAC on TSE-MRI. Thirteen patients demonstrated various bony malformations of the cochleovestibular system on CT. MRI revealed the absence of the cochleovestibular nerve in four patients where the IAC was very narrow or completely absent on CT. One patient with severe Mondini malformation who had an enlarged IAC demonstrated an isolated absent cochlear nerve.

scholarly journals Thyroid function in hearing impaired children with cochlear implant

2015 ◽  
Vol 62 (3) ◽  
pp. 276-279
Author(s):  
Alexandra-Cristina Neagu ◽  
◽  
Monica Gheorghiu ◽  
◽  
Keyword(s):  
Hearing Loss ◽  
Cochlear Implant ◽  
Thyroid Function ◽  
Congenital Hypothyroidism ◽  
Serum Levels ◽  
Study Group ◽  
Congenital Hearing Loss ◽  
Pendred Syndrome ◽  
Impaired Children ◽  
Thyroid Abnormalities

Congenital hypothyroidism may be associated with hearing loss. However, the prevalence of thyroid abnormalities in children with severe hearing loss is not clearly evaluated. The authors assessed the thyroid function in 30 children with profound sensorineural bilateral hearing loss, with cochlear implant, to determine if there is any association between congenital hearing loss and hypothyroidism. Serum levels of TSH and free thyroxine were normal in the study group. None had Pendred syndrome. We present a literature review on the association between hearing loss and thyroid abnormalities and the importance of testing hearing in children with congenital hypothyroidism.

The Development of Constant Items for Speech Discrimination Testing

1968 ◽  
Vol 11 (3) ◽  
pp. 656-667 ◽  
Author(s):  
Elmer Owens ◽  
Earl D. Schubert
Keyword(s):  
Hearing Loss ◽  
Hearing Impairment ◽  
Speech Discrimination ◽  
Discrimination Test ◽  
Closed Set ◽  
Response System ◽  
Speech Discrimination Test ◽  
Discrimination Testing ◽  
English Speaking ◽  
Manner Of Articulation

Subjects were English-speaking adults with hearing impairment. Etiology of hearing loss did not enter into selection. Consonant errors were observed on speech discrimination test lists employing a closed-set response system. Fifteen subjects were employed for the first list and 20 each for the remaining four lists, with an occasional subject serving in more than one group. Confusions between unvoiced and voiced consonants rarely occurred; the /r/ and /l/ were seldom confused with other phonemes; and nasals were seldom confused with non-nasals. Discrimination difficulty was related to both place and manner of articulation.

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