Audiometric Outcomes in Pediatric Temporal Bone Trauma

Area of Science:

• Pediatric Otolaryngology
• Neurotology
• Trauma Surgery

Background:

• Pediatric temporal bone trauma is a significant clinical concern.
• Understanding audiometric outcomes is crucial for managing these injuries.
• Characterizing fracture patterns and associated hearing loss is essential for prognosis.

Purpose of the Study:

• To characterize pediatric temporal bone trauma.
• To focus on the audiometric outcomes following temporal bone fractures in children.
• To differentiate hearing loss characteristics between otic capsule-sparing and otic capsule-violating fractures.

Main Methods:

• A case series design with retrospective chart review was employed.
• Data were collected from children (<18 years) with CT-proven temporal bone fractures over a 3-year period.
• Audiometric data, fracture patterns, and demographic information were analyzed.

Main Results:

• Of 58 patients (60 fractures), 93% were otic capsule-sparing.
• Otic capsule-violating fractures were associated with severe, mixed-type hearing loss.
• Otic capsule-sparing fractures often presented with mild, conductive hearing loss, with 72% improving to normal within 48 days.

Conclusions:

• Hearing loss characteristics significantly differ between otic capsule-sparing and otic capsule-violating temporal bone fractures.
• Most children with otic capsule-sparing fractures and hearing loss achieve normal hearing within approximately 6 weeks, especially with conductive loss.
• Early investigation for surgical causes is recommended for children whose hearing does not improve within this timeframe.