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Biomedical subjects

J J Renshaw

Publications and source records attributed to J J Renshaw.

7 recordsLinked to original sources

Down syndrome: a multidisciplinary perspective.

Trisomy 21, a genetic disorder resulting from a chromosomal abnormality, is one of the most common forms of mental disability in the United States. Individuals with Down syndrome frequently present with a constellation of medical problems including conductive hearing loss and, to a lesser degree, sensorineural hearing loss. As part of a health care team, audiologists must be sensitive to and aware of medical conditions prior to establishing intervention strategies. Medical conditions, by necessity, precede audiologic interventions and, therefore, a close working relationship among team members is critical. Yet, audiologic and communication interventions should be established at the earliest possible time for maximizing an individual's development potential. This article stresses the importance of a multidisciplinary team in the provision of services so that prevention of further disabilities, improved outcomes of medical interventions, and appropriate habilitative and educational planning may ensue.

Down Syndrome↗

Evaluating meaningful auditory integration in profoundly hearing-impaired children.

The Meaningful Auditory Integration Scale (MAIS) was developed to evaluate meaningful use of sound in everyday situations by profoundly hearing-impaired children. Information about the use of sound in everyday situations is obtained with a parent interview technique. Initial findings obtained with this scale are reported in Experiment 1 for children who use a hearing aid, single-channel cochlear implant, multichannel cochlear implant, or two-channel tactile aid. The hearing aid users were perceived by their parents to use sound in everyday situations to a greater extent than were the users of either implant or the tactile aid. There was a trend toward slightly higher performance by the multi- than by the single-channel cochlear implant users. The tactile aid users were perceived by their parents to use sound in a meaningful way to the most limited extent. Scores on the MAIS, which were obtained on a longitudinal basis, are reported in Experiment 2. The findings suggest that meaningful auditory integration continued to develop over time in children who used each type of sensory aid.

Auditory Perception↗

Performance of deaf children with cochlear implants and vibrotactile aids.

A longitudinal study is under way to examine the speech perception and production skills of deaf children who use a single- or multi-channel cochlear implant, or a two-channel tactile aid. The speech perception data showed that the majority of subjects who achieved the highest scores on a range of measures used the multi-channel cochlear implant. The production data showed that all three types of sensory aids were effective in promoting production skills, with the cochlear implant users showing the greatest gains in this area.

Child↗

Monitoring of intraoperative auditory brainstem responses.

Intraoperative ABR monitoring provides a measure of reassurance when a surgical procedure places the cochlear nerve or its blood supply in jeopardy. ABR monitoring has demonstrated its place in the operating room during retrolabyrinthine vestibular nerve section for vertigo, and in acoustic neuroma operations, when hearing preservation is a high priority in surgical outcome.

Brain Stem↗

The role of cochlear implants in deaf children.

Advances in technology regarding cochlear implantation and electroacoustic stimulation of the inner ears of deaf children has created cautious enthusiasm. The safety of cochlear implantation is now reasonably well established and language performance measures made over time are encouraging. When coupled with an effective (re)habilitation program, the cochlear implant promises to favorably influence the potential of deafened children.

Adolescent↗