Related Experiment Video
Updated: Apr 1, 2026
Endaural Endoscopic Atticoantrotomy Retrograde Mastoidectomy using a Constant Suction Bone-drilling Technique
Published on: May 23, 2021
Audiometric Outcomes in Pediatric Temporal Bone Trauma
1UPMC Department of Otolaryngology, Pittsburgh, Pennsylvania, USA.
Insights
Pediatric temporal bone fractures impact hearing differently based on fracture type. Most children with otic capsule-sparing fractures experience hearing improvement within six weeks, particularly those with conductive hearing loss.
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.
Objective:
To characterize pediatric temporal bone trauma, focusing on audiometric outcomes.
Study Design:
Case series with chart review.
Setting:
Tertiary care children's hospital.
Subjects And Methods:
Cases were reviewed of children (<18 years) presenting over a 3-year period with computed tomography-proven temporal bone fracture and audiology examination. All scans were read by a neuroradiologist and reviewed by a pediatric otolaryngologist. Demographics, fracture pattern, and audiometric data were recorded.
Results:
Fifty-eight patients (60 fractures) met inclusion criteria. The majority (93%) were otic capsule-sparing fractures. The types and severity of hearing loss were significantly different between the 2 fracture patterns. Based on pure-tone average, all otic capsule-violating fractures had abnormal initial audiograms; 75% of these losses were severe. Approximately half (54%) of otic capsule-sparing fractures had abnormal initial audiograms; a majority were mild losses (85%). All classifiable losses in otic capsule-violating cases were of mixed type, whereas the majority (75%) of losses in otic capsule-sparing cases were conductive. Regardless of classification, 72% of patients with otic capsule-sparing fractures and initially abnormal audiograms improved to normal levels at a mean of 48 days posttrauma; this increased to 83% when only conductive losses were considered.
Conclusions:
Hearing loss type and severity differ in otic capsule-sparing and otic capsule-violating temporal bone fractures. A majority of children with otic capsule-sparing fractures and associated hearing loss improve to normal levels in about 6 weeks, especially if the original loss is classified as solely conductive. Children who do not improve within this time frame may warrant early investigation into surgically correctable causes.
