Spoken Language Skills in Children With Bilateral Hearing Aids or Bilateral Cochlear Implants at the Age of Three Years.

OBJECTIVES: Early hearing aid (HA) fitting and cochlear implants (CIs) aim to reduce the effects of hearing loss (HL) on spoken language development. The goals of this study were (1) to examine spoken language skills of children with bilateral HAs and children with bilateral CIs; (2) to compare their language skills to the age-norms of peers with normal hearing (NH); and (3) to investigate factors associated with spoken language outcomes. DESIGN: Spoken language results of 56 Finnish children with HL were obtained from a nationwide prospective multicenter study. Children with HL comprised two groups: children with mild-to-severe HL who used bilateral HAs (BiHA group, n = 28) and children with profound HL who used bilateral CIs (BiCI group, n = 28). Children's spoken language comprehension, expressive and receptive vocabulary, and phonological skills were compared with normative values of children with NH at the age of three years. Odds ratio (OR) was calculated to compare proportions of children below age-norms in BiHA and BiCI groups. Factors associated with spoken language outcomes were modeled with analysis of covariance. RESULTS: At the age of 3 years, 50%-96% of children with HL performed 1 SD or more below the mean of the normative sample of age-peers with NH in spoken language skills, depending on the language domain. Receptive vocabulary and phonological skills were the most vulnerable language domains. In receptive vocabulary, 82% of the children in the BiHA group and 50% of the children in the BiCI group scored 1 SD or more below the normative mean. The BiHA group was 4.4 times more likely to have poorer receptive vocabulary than the BiCI group. In phonological skills, 96% of children in the BiHA group and 60% of the children in the BiCI group scored 1 SD or more below the normative mean. The BiHA group was 18.0 times more likely to have poorer phonological skills than the BiCI group. The analysis of covariance models showed that unaided pure-tone average, PTA0.5-4 kHz, had a significant effect on spoken language comprehension in the BiHA group. For the BiCI group, age at HL diagnosis and age at CI activation had a significant effect on expressive vocabulary. High maternal level of education had a significant effect on language comprehension and expressive vocabulary and female gender on phonological skills. CONCLUSIONS: At the age of 3 years, especially receptive vocabulary and phonological skills caused difficulties for children with HL showing also considerable individual variation. Children with bilateral HAs seemed to be more likely to have poorer receptive vocabulary and phonological skills than children with bilateral CIs. A variety of factors was associated with outcomes in both groups. Close monitoring of spoken language skills of children with HL is important for ensuring similar opportunities for all children with HL and timely intervention, when needed.

Continuous positive airway pressure treatment may negatively affect auditory maturation in preterm infants.

AIM: Nasal continuous positive airway pressure (CPAP) devices generate loud noise, which might harm auditory function and maturation. The function of auditory pathways can be examined by using brainstem auditory evoked potential (BAEP) and brainstem audiometry (BA) recordings. Our objective was to study whether CPAP treatment during the neonatal period is associated with abnormalities in BAEP and BA recordings. METHODS: Included in this retrospective study were preterm infants (birth weight ≤1500 g and/or gestational age ≤32 weeks) born between 2002 and 2006 with a comprehensive clinical background and follow-up data, including the duration of CPAP treatment (n = 162). BAEP and BA were recorded near the mean corrected age of one month. The following variables from BAEP and BA examinations were analysed: latencies of BAEP components I, III, V, interpeak intervals (IPI) I-V, I-III, III-V (ms), amplitude I and V (µV), amplitude ratio I/V and BA thresholds. RESULTS: In the adjusted analysis, a longer CPAP treatment leads to longer latencies of BAEP component III (p = 0.01) and V (p = 0.02) in the right ear. CONCLUSION: CPAP treatment may impair the auditory maturation and processing mediated via the dominant right ear. The hearing and neurodevelopment of the children who are treated with CPAP should be followed.

Neonatal brainstem auditory function associates with early receptive language development in preterm children.

AIM: To study whether auditory function measured with brainstem auditory evoked potential and brainstem audiometry recordings in the neonatal period associates with language development 1 year later in preterm infants. METHODS: This retrospective study included 155 preterm infants (birthweight ≤1500 g and/or birth ≤32 gestational weeks) born between 2007 and 2012 at the Turku University Hospital. Auditory function was recorded in neonatal period. Information of language development was gathered at the mean corrected age of 1 year by using the Finnish version of the MacArthur Communicative Development Inventory. RESULTS: Slower auditory processing (longer interpeak interval, IPI I-V) in the right ear in the neonatal brainstem auditory evoked potential recording associated with smaller receptive lexicon size at 1 year (P = .043). Infants with longer IPI I-V were more likely to have a deviant (≤17 words) receptive lexicon size (P = .033). The absence of a contralateral response with right ear stimulation increased the risk for deviant lexicon size (P = .049). CONCLUSION: The results suggest that impaired auditory function in the neonatal period in preterm infants may lead to a poorer receptive language outcome 1 year later. Auditory pathway function assessment provides information for the identification of preterm children at risk for weak language development.

Dislocation of cochlear implant magnet as a complication following MRI.

According to current best knowledge, an MRI scan can be performed for patients with cochlear implants. The warnings and recommendations of the implant manufacturers must be followed strictly to prevent complications, such as overheating, migration or demagnetization of the magnet in the implant. We report on a case of cochlear implant magnet dislocation as a complication for an MRI scan. The patient had a tight bandage around the head to hold the magnet in place as recommended by the manufacturer, but apparently the bandage was not in the correct place.

Electric field-navigated transcranial magnetic stimulation for chronic tinnitus: a randomized, placebo-controlled study.

OBJECTIVE: Repetitive transcranial magnetic stimulation (rTMS) may alleviate tinnitus. We evaluated effects of electric field (E-field) navigated rTMS targeted according to tinnitus pitch. No controlled studies have investigated anatomically accurate E-field-rTMS for tinnitus. DESIGN: Effects of E-field-rTMS were evaluated in a prospective randomised placebo-controlled 6-month follow-up study on parallel groups. Patients received 10 sessions of 1 Hz rTMS or placebo targeted to the left auditory cortex corresponding to tonotopic representation of tinnitus pitch. Effects were evaluated immediately after treatment and at 1, 3 and 6 months. Primary outcome measures were visual analogue scores (VAS 0-100) for tinnitus intensity, annoyance and distress, and the Tinnitus Handicap Inventory (THI). STUDY SAMPLE: Thirty-nine patients (mean age 50.3 years). RESULTS: The mean tinnitus intensity (F3 = 15.7, p < 0.0001), annoyance (F3 = 8.8, p = 0.0002), distress (F3 = 9.1, p = 0.0002) and THI scores (F4 = 13.8, p < 0.0001) decreased in both groups over time with non-significant differences between the groups. After active rTMS, 42% and 37% of the patients showed excellent response at 1 and 3 months against 15% and 10% in the placebo group (p = 0.082 and p = 0.065). CONCLUSIONS: Despite the significant effects of rTMS on tinnitus, differences between active and placebo groups remained non-significant, due to large placebo-effect and wide inter-individual variation.

Electric field navigated transcranial magnetic stimulation for chronic tinnitus: A pilot study.

OBJECTIVE: Repetitive transcranial magnetic stimulation (rTMS) has shown potential in reducing tinnitus symptoms. We evaluated effects of electric field (E-field) navigated rTMS targeted neuroanatomically according to tinnitus pitch. DESIGN: In this open methodological pilot study, the patients received E-field navigated 1-Hz rTMS in daily treatment sessions to the left superior temporal gyrus, targeted according to tonotopic representation of their individual tinnitus pitch. Patients rated their tinnitus intensity and annoyance with a numeric rating scale (NRS) from 0 to 10 at the baseline and after each rTMS session. They also rated their global impression of change (scale - 3 to + 3) after the treatment. STUDY SAMPLE: Thirteen patients (mean age 53 years; 10 men, 3 women) with chronic, intractable tinnitus. RESULTS: The mean intensity was 7.1 (SD 1.8) at the baseline, decreasing to 4.5 (SD 2.2) after the rTMS (p < 0.0001). The mean annoyance 7.0 (SD 1.8) at the baseline decreased to 4.0 (SD 2.4) after the treatment (p < 0.0001). Intensity diminished at least 30% in 8/13 patients and annoyance in 9/13 patients. A total of 10/13 patients felt subjective benefit from the treatment. CONCLUSIONS: These preliminary observations suggest that E-field-rTMS may improve the current treatment options for intractable tinnitus.

[Screening for hearing loss in newborns at Turku University Central Hospital]. / Vastasyntyneiden kuulonseulonta TYKS:ssä vuosina 2006-2008.

BACKGROUND: Since 2005 all newborns at Turku University Central Hospital, Finland have been screened for hearing loss with two-stage procedure (otoacoustic emission and automated auditory brainstem response). METHODS: We reviewed medical records of all newborns screened for hearing loss in 2006-2008. Costs of the screening were estimated. RESULTS: 12011 newborns were screened. In 12 newborns moderate to severe bilateral hearing defect was detected. The incidence of hearing defect was 0.06% among healthy newborns and 0.8% among very preterm infants. Costs of the two-stage screening were 26% lower than those of the one-stage model. CONCLUSIONS: Two-stage screening for hearing improved identification of newborns with hearing loss in a cost-effective manner.

[What's new in auditory rehabilitation?]. / Mitä uutta kuulonkuntoutuksessa?

The availability of auditory rehabilitation has significantly improved with the current legislation. Rehabilitation options have developed with advanced hearing aid technology. With the aging population, the number of persons using a hearing aid is increasing. A physician will need basic abilities to communicate with an elderly for whom the use of a hearing aid may be problematic. Besides a hearing aid, a hearing-impaired person may need other appliances, such as a better audible doorbell or an amplified telephone. In severe cases, alarm systems comprising of a fire alarm and indicator of doorbell and telephone ringing may be necessary.

Relationship between self-reported hearing and measured hearing impairment in an elderly population in Finland.

OBJECTIVE: The objective of this study was to evaluate the usefulness of the Finnish version of the Hearing Handicap Inventory for Elderly Screening (HHIE-S) questionnaire and a simple single-question method in detecting hearing loss. DESIGN: We compared the HHIE-S score and the single question with audiometry results. By analysing the receiver operating characteristic (ROC) curves of the HHIE-S scores we estimated the appropriate cut-off points for the different degrees of hearing loss. STUDY SAMPLE: 164 home-dwelling subjects in the age cohorts of 70, 75, 80 and 85 years in an industrialized town in Finland filled in the questionnaire, and attended the audiometry. RESULTS: For the detection of moderate or worse hearing loss (i.e., pure tone average at 0.5-4 kHz frequencies >40 dB), the HHIE-S cut-off score of >8 had a sensitivity of 100% and a specificity of 59.7%. The single question had a sensitivity of 100% and a specificity of 70.7%. Thus, the single question was equally sensitive and more specific in detecting moderate or worse hearing loss than the HHIE-S score. However, for the detection of mild hearing loss (i.e., pure tone average >25 dB), the HHIE-S was more sensitive but less specific than the single question.

Alexithymia, depression and tinnitus in elderly people.

OBJECTIVE: Tinnitus is known to have an association with depression and other psychiatric disorders. As part of a larger epidemiological survey, we evaluated the associations among tinnitus, depression and alexithymia in a group of elderly people. METHODS: A survey of hearing loss, audiological rehabilitation and associated morbidity in a senior population was conducted in Turku, Finland. The study sample consisted of 583 participants aged between 70 and 85 years. The Toronto Alexithymia Scale (TAS-20) was used to measure alexithymia, whereas the 13-item version of the Beck Depression Inventory was used to measure depression; the subjective experience of tinnitus was queried with a questionnaire. RESULTS: Depression had a clear association with subjectively annoying tinnitus. Contrary to expectations, the TAS-20 score did not correlate with the severity of tinnitus. In fact, the highest TAS-20 scores were found among the subjects who had tinnitus but did not find it to be subjectively annoying. No significant association between high TAS-20 scores and hearing loss was found. CONCLUSION: Although we found an association between TAS-20 scores and the presence of tinnitus, alexithymia does not seem to be helpful in explaining tinnitus annoyance among elderly people.