Genetics of pediatric hearing loss: A functional perspective

Area of Science:

• Genetics
• Pediatrics
• Otolaryngology

Background:

• Pediatric hearing loss (HL) has diverse etiologies.
• Genetic factors are increasingly recognized as a significant cause of congenital and early-onset HL.
• Understanding the genetic basis is crucial for diagnosis and management.

Purpose of the Study:

• To review the current role of genetics in pediatric hearing loss.
• To highlight the genes associated with nonsyndromic and syndromic HL in children.
• To discuss the implications of genetic findings for diagnosis, prognosis, and future therapies.

Main Methods:

• Comprehensive literature review.
• Analysis of studies identifying genes linked to pediatric HL.
• Synthesis of current knowledge on genetic contributions to HL.

Main Results:

• Over 119 nonsyndromic genes have been associated with pediatric HL.
• Hundreds of syndromic causes of HL have been identified, where HL is part of a broader clinical picture.
• Significant genetic heterogeneity exists in pediatric HL.

Conclusions:

• Genotype-phenotype correlation aids in accurate diagnosis and prognosis of pediatric HL.
• Despite the complexity of the auditory system, gene therapy is an emerging and promising future management strategy.
• Continued genetic research is vital for advancing the understanding and treatment of pediatric hearing loss.