Rehabilitation of Hearing-Impaired Children

Early Detection & Diagnosis - Spotting Silence Sooner

• Goal: Identify hearing loss by 3 months, intervene by 6 months.
• Universal Newborn Hearing Screening (UNHS):
  • All newborns before discharge.
  • Methods: OAE (cochlear), AABR (neural pathway).
• High-Risk Factors (JCIH): Family Hx, NICU >5 days, TORCH, craniofacial anomalies, hyperbilirubinemia, ototoxic drugs.
• Diagnostic Steps (if screen fail/high-risk):
  • Diagnostic ABR/BERA.
  • Tympanometry.
  • Age-appropriate behavioral tests:
    • BOA (<6 mo)
    • VRA (6 mo - 2.5 yr)
    • CPA (2.5 - 5 yr)

⭐ EHDI 1-3-6 Rule: Screen by 1 month, diagnose by 3 months, enroll in early intervention by 6 months of age.

Amplification & Technology - Tiny Tech, Big Sounds

• Hearing Aids (HAs): Primary for most Sensorineural Hearing Loss (SNHL).
  • Types: Behind-The-Ear (BTE) for children (safety, growth); In-The-Ear (ITE), In-The-Canal (ITC), Completely-In-Canal (CIC).
  • Fitting: Bilateral for binaural benefits. Early fitting (by 6 months) vital for speech/language.
  • Verification: Real Ear Measures (REM) for target gain.
• Cochlear Implants (CIs): For severe-profound SNHL, poor HA benefit.
  • Candidacy: ≥12 months (FDA); bilateral severe-profound SNHL; limited speech perception with HAs.
  • Components: External (mic, processor, transmitter) & Internal (receiver, electrode array in cochlea).
• Bone Conduction Devices (BCDs): For conductive/mixed loss, SSD.
  • E.g., BAHA, Ponto. Directly stimulate cochlea via bone.
• Assistive Listening Devices (ALDs): Improve Signal-to-Noise Ratio (SNR).
  • FM/DM systems: Personal/sound-field. Essential in classrooms.

⭐ Early HA fitting (by 6 months) is a critical determinant of speech and language outcomes in hearing-impaired children.

Communication Modalities - Bridging Sound Gaps

• Auditory-Oral (A-O) & Auditory-Verbal Therapy (AVT):
  • Goal: Develop listening skills & spoken language.
  • AVT: Intensive, parent-focused; aims for mainstream education.
  • Discourages visual cues (lip-reading, sign).
• Cued Speech:
  • Handshapes near mouth supplement lip-reading.
  • Clarifies visually ambiguous speech sounds (visemes).
  • Aids spoken language perception.
• Total Communication (TC):
  • Philosophy: Uses multiple modalities (speech, sign, lip-reading, fingerspelling, auditory training).
  • Tailored to individual child's needs.
• Sign Language (e.g., ISL):
  • Complete visual-gestural languages with own grammar.
  • Bilingual-Bicultural (Bi-Bi): Sign as L1, spoken/written as L2.

⭐ Auditory-Verbal Therapy (AVT) emphasizes developing spoken language through listening, using amplified residual hearing, with a goal of mainstream education for the child.

Holistic Habilitation - Beyond the Ears

• Comprehensive approach: Addresses auditory, linguistic, cognitive, social-emotional, and academic development.
• Core Pillars:
  • Family-Centered Care: Empowering parents; active participation.
  • Psychosocial Support: Counseling (child & family); fostering self-esteem; peer interaction.
  • Educational Planning: Individualized Education Programs (IEPs); appropriate school placement (mainstream, integrated, special).
  • Speech & Language Therapy: Integrated into daily routines; focus on functional communication.
  • Vocational Guidance: Skill development for future independence.
  • Multidisciplinary Team (MDT): Audiologist, SLP, ENT, pediatrician, psychologist, special educator.

⭐ Early intervention, ideally before 6 months of age, is critical for maximizing linguistic and cognitive outcomes in children with congenital hearing loss.

High‑Yield Points - ⚡ Biggest Takeaways

• Early detection via Universal Newborn Hearing Screening (UNHS) is crucial for language development.
• Hearing aids are the primary intervention for mild to severe Sensorineural Hearing Loss (SNHL).
• Cochlear Implants (CI) are for bilateral severe-profound SNHL unresponsive to aids, ideally before 3 years.
• Auditory-Verbal Therapy (AVT) is key post-CI/aid for spoken language acquisition.
• A multidisciplinary team (ENT, Audiologist, Speech Language Pathologist) approach is vital.
• Parental involvement and counseling are critical for successful outcomes.
• Common Indian risk factors include consanguinity, TORCH infections, and birth asphyxia.