Klippel-Feil syndrome and conductive deafness

Area of Science:

• Otolaryngology
• Genetics
• Audiology

Background:

• Klippel-Feil syndrome (KFS) is a congenital disorder characterized by the fusion of cervical vertebrae.
• Sensorineural hearing loss is a common audiological finding in KFS.
• Conductive or mixed hearing loss in KFS is infrequently reported, with limited understanding of its etiology and management.

Observation:

• This paper presents four new cases of Klippel-Feil syndrome with conductive or mixed hearing loss.
• The study details the specific middle ear anomalies observed in these patients.
• A review of surgical interventions for middle ear issues in KFS was conducted.

Findings:

• Klippel-Feil syndrome can present with rare forms of hearing impairment, including conductive and mixed types.
• Specific middle ear malformations are associated with KFS and contribute to hearing deficits.
• Surgical outcomes for addressing these middle ear anomalies in KFS patients are generally unfavorable.

Implications:

• These findings highlight the importance of audiological assessment in all KFS patients, regardless of the typical hearing loss presentation.
• Further research is needed to understand the pathophysiology of middle ear anomalies in KFS.
• Improved diagnostic and therapeutic strategies are required for managing hearing loss in Klippel-Feil syndrome.