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Updated: Mar 21, 2026

Neonatal Murine Cochlear Explant Technique as an In Vitro Screening Tool in Hearing Research
Published on: June 8, 2017
"Collodion baby": A unique challenge for newborn hearing screening
Kayla M Jasper1, Philip Gaudreau2, Todd V Cartee3
1Bachelor of Science in Biology, The George Washington University, School of Medicine and Health Sciences, 2300 I St NW, Washington DC.
Abstract:
We present an infant with collodion membrane who had an obstructed external auditory canal, causing the infant to fail her newborn hearing screen (otoacoustic emissions) bilaterally. An auditory brainstem response (ABR) test was deferred due to the reported increased risk of infections in these babies. Meticulous but gentle debridement of the membranes on the external auditory canal, using a combination of otic drops (ofloxacin), emollients (baby oil/mineral oil), and suctioning, permitted the infant to ultimately pass otoacoustic emissions bilaterally and subsequent serial audiograms.

