Pediatric Hearing Loss in Singapore

Conductive hearing loss occurs when sound cannot efficiently travel through the outer or middle ear to reach the inner ear. This type may be temporary and treatable, often caused by ear infections (otitis media), fluid accumulation, or earwax blockage. In children, enlarged adenoids or anatomical abnormalities can also cause conductive hearing loss.

Sensorineural hearing loss involves damage to the inner ear (cochlea) or auditory nerve pathways. This form of hearing loss can be present at birth (congenital) or acquired later. Genetic factors may contribute to congenital cases, while acquired cases may result from infections, medications, or head trauma.

Mixed hearing loss combines both conductive and sensorineural components. Children with this type experience problems in both the outer/middle ear and inner ear simultaneously. This can occur when a child with pre-existing sensorineural hearing loss develops middle ear infections or other conductive hearing loss.

Auditory processing disorder affects how the brain interprets sound despite normal ear function. Children with this condition may struggle to understand speech, especially in noisy environments, though their hearing test results may appear normal.

• No startle response to loud sounds
• Does not turn towards sound sources
• Fails to wake up to loud noises
• Does not smile when spoken to
• Seems to hear some sounds but not others

• Does not respond to name being called
• No babbling or vocal play
• Does not understand simple phrases like “bye-bye”
• Fails to imitate sounds
• Limited or no speech sounds

• Vocabulary not expanding
• Cannot follow simple verbal instructions
• Does not combine two words by age 2
• Unclear speech that family members cannot understand
• Frequently says “what?” or needs repetition

• Speech delay compared to peers
• Difficulty learning new words
• Cannot follow multi-step instructions
• Turns up the volume on devices excessively
• Complaints of ear pain or reports of “funny sounds”
• Behavioural issues due to frustration with communication

• Academic difficulties, especially in reading
• Inattentiveness or appears to be daydreaming
• Social withdrawal or difficulty making friends
• Teacher reports of not following instructions
• Exhaustion after school from the concentration effort

Children with hearing loss often develop compensatory behaviours, such as watching faces intently, relying on visual cues, or strategically positioning themselves in groups. Parents may notice their child responds better when facing them directly or in quiet environments rather than noisy settings.

If you observe these symptoms, consider consulting an ENT specialist for evaluation and appropriate management.

Treatment for ear infections causing temporary hearing loss typically involves antibiotics for bacterial infections, with amoxicillin being the first-line choice. The course duration and follow-up assessment aim to help with infection resolution. For persistent middle ear fluid (otitis media with effusion), watchful waiting may be appropriate, as some cases can resolve spontaneously. During this period, hearing monitoring helps to confirm there is no significant impact on development.

• Myringotomy with Tube Insertion:
  For children with chronic middle ear fluid or recurrent infections, ventilation tube (grommet) insertion provides middle ear drainage and aeration. This day-surgery procedure takes approximately 15 minutes under general anaesthesia. Tubes typically remain in place for 6-12 months before naturally extruding. Children may experience hearing improvement post-procedure.
• Tympanoplasty: Eardrum perforations that don’t heal spontaneously may require surgical repair. This procedure uses tissue grafts to reconstruct the tympanic membrane. Recovery involves keeping the ear dry for several weeks while healing occurs.
• Cochlear Implantation: Children with severe to profound sensorineural hearing loss who receive limited benefit from hearing aids may be candidates for cochlear implants. This device bypasses damaged hair cells and directly stimulates the auditory nerve. Surgery typically occurs after 12 months of age, followed by intensive auditory rehabilitation. Early implantation can provide benefits for speech and language development.
• Bone Conduction Systems: For children with conductive hearing loss, ear canal abnormalities, or single-sided deafness, bone-conduction devices transmit sound via skull vibration. Options include non-surgical devices (softband or adhesive systems) for young children and surgically implanted systems for older children. These devices can bypass middle ear problems while preserving natural hearing when possible.

Digital Hearing Aids: Modern paediatric hearing aids offer digital processing tailored to young ears. Features include feedback cancellation, noise reduction, and multiple programmes for different listening environments. Paediatric-specific considerations include tamper-resistant battery doors, LED indicators for caregivers, and robust construction for active children. Fitting requires specialised paediatric protocols ensuring appropriate amplification for speech and language development.

FM Systems: Frequency modulation systems can improve speech understanding in classrooms by transmitting the teacher’s voice directly to the child’s hearing aids. These systems help overcome distance and background noise challenges, which can be important for academic success. Integration with existing hearing aids or cochlear implants may maximise benefit in educational settings.

Auditory Training and Rehabilitation: Following device fitting, structured auditory training helps children learn to interpret sounds effectively. Speech therapy focuses on articulation, language development, and communication strategies. Family involvement through home practice can accelerate progress. For younger children, auditory-verbal therapy emphasises listening and spoken-language development through natural, play-based activities.