Hyperbilirubinemia Requiring Exchange Transfusion as a Risk Factor for Later-Onset Hearing Loss

Area of Science:

• Pediatric Audiology
• Neonatal Care
• Evidence-Based Medicine

Background:

• The Joint Committee on Infant Hearing (JCIH) previously identified hyperbilirubinemia requiring exchange transfusion as a risk factor for childhood hearing loss.
• This review critically examines the evidence supporting the JCIH recommendation.

Purpose of the Study:

• To evaluate the strength of evidence linking hyperbilirubinemia requiring exchange transfusion to childhood hearing loss.
• To inform clinical practice guidelines for hearing screening and monitoring in at-risk infants.

Main Methods:

• A comprehensive literature search was conducted using PubMed with keywords 'hyperbilirubinemia' and 'hearing loss'.
• Seventy-seven original papers were identified, with 44 undergoing full review and 21 being graded for evidence quality.
• Recommendations were based on graded evidence and expert consensus.

Main Results:

• A moderate level of evidence supports hyperbilirubinemia requiring exchange transfusion as a risk factor for elevated hearing thresholds in infants and young children.
• Automated Auditory Brainstem Response screening is recommended for this infant population.
• The net benefit of these interventions is moderate to substantial.

Conclusions:

• Close monitoring of hearing, speech, and language milestones is crucial for infants with hyperbilirubinemia requiring exchange transfusion, even if they pass newborn hearing screening.
• Early detection and intervention can lead to improved developmental outcomes.