Arteriovenous fistula presenting as a failed hearing test

Area of Science:

• Vascular Malformations
• Pediatric Neurology
• Otoacoustic Emissions

Background:

• Congenital arteriovenous fistulas (AVFs) arise from abnormal fetal vascular development.
• These vascular anomalies can occur in various locations, including the head and neck.
• Early detection is crucial for managing potential complications.

Observation:

• A case report details a newborn with a congenital arteriovenous fistula in the neck.
• The AVF was suspected due to unusual noise interference during otoacoustic emissions (OAE) testing.
• This presentation is a rare manifestation of a congenital neck AVF.

Findings:

• The neck AVF may have produced artifactual noise during otoacoustic emissions (OAE) testing.
• This suggests a potential, previously unreported, indirect sign of congenital AVF in neonates.
• Further investigation is warranted to confirm the link between AVFs and OAE findings.

Implications:

• This case broadens the differential diagnosis for abnormal newborn hearing screening results.
• It emphasizes the importance of considering vascular anomalies in unexplained OAE interference.
• Highlights the need for multidisciplinary evaluation in complex pediatric cases.