64 Madridge J Otorhinolaryngol.
ISSN: 2640-5148
Volume 3 • Issue 1 • 1000113
Madridge
Journal of Otorhinolaryngology
Research Article Open Access
Bone Anchored Hearing in Children with Aural Atresia:
A Comparison of outcomes with Transcutaneous
Magnetic Surgical and Non-surgical Options
Short Running Head: Outcomes of Magnetic Bone Anchored Hearing Aids in Pediatric Aural Atresia
Douglas M Worrall
1
, Sida Chen
1
, Randi Tepper
2
, George Wanna
2
and Maura K Cosetti
2
*
1
Department of Otolaryngology Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, Mount Sinai Health System, New York, USA
2
Ear Institute, New York Eye and Ear of Mount Sinai, Mount Sinai Health System, New York, USA
Article Info
*Corresponding author:
Maura K Cosetti
Department of Otolaryngology Head and
Neck Surgery
Ear Institute
New York Eye and Ear of Mount Sinai
380 2nd Ave 9th Floor, New York 10010
USA
Tel: 212-979-4542
E-mail: Maura.Cosetti@mountsinai.org
Received: August 9, 2018
Accepted: September 1, 2018
Published: September 5, 2018
Citation: Worrall DM, Chen S, Tepper R,
Wanna G, Cosetti MK. Bone Anchored
Hearing in Children with Aural Atresia: A
comparison of outcomes with Transcutaneous
Magnetic Surgical and non-surgical options.
Madridge J Otorhinolaryngol. 2018; 3(1):
64-69.
doi: 10.18689/mjol-1000113
Copyright: © 2018 The Author(s). This work
is licensed under a Creative Commons
Attribution 4.0 International License, which
permits unrestricted use, distribution, and
reproduction in any medium, provided the
original work is properly cited.
Published by Madridge Publishers
Abstract
Objective: To compare audiologic outcomes and skin related complications in children
with aural atresia treated with non-surgical softband or transcutaneous magnet-based
implantable bone anchored hearing devices (mBAHD).
Methods: Retrospective cohort study at a tertiary referral center of pediatric patients
with conductive hearing loss from congenital aural atresia. The Cochlear™ Baha Attract
system (Cochlear Americas, Centennial, CO) mBAHD (n=11) was compared to the non-
surgical softband BAHD (n=11) in terms of aided and unaided hearing thresholds, aided
word recognition scores (WRS), and device related complications.
Results: Age, length of follow-up (mean=28.2 months, range: 13-43 months), and bone
conduction thresholds for the atretic ear were comparable between groups (p>0.05).
There were no surgical complications. The mean aided gain in the speech reception
threshold (SRT) was similar between groups (p=0.55). However, the mean (SD) aided
unilateral WRS was higher in the soft band group: 83.9% versus 71.2% in the mBAHD
group (p=0.023). Skin complication rate was 0% in the soft band cohort and 54.5%
mBAHD cohort (p=0.004) with four cases of persistent pain and erythema, and two
cases of pain alone limiting device use. Interventions included decreasing magnet
strength, adding soft pads, topical and oral antibiotics, and reducing device usage.
Conclusions: mBAHD are effective for auditory rehabilitation in pediatric congenital
aural atresia with equivalent aided gain in SRT to soft band devices. Slightly improved
aided WRS was seen in the soft band cohort. Despite lack of an external abutment, skin
complications with mBAHD are common and may be mitigated by prompt evaluation
and use of the lowest feasible magnet strength.
Keywords: Aural Atresia; mBHAD; Surgical; Non Surgical Options; Bone Anchored
Hearing; Age and Length.
Introduction
Incomplete canalization of the temporal bone during development can cause congenital
aural atresia, characterized by a complete absence of the external auditory canal (EAC), with
frequently associated abnormalities of the ossicular chain and a maximal conductive hearing
loss. Congenital aural atresia occurs in 1 in 10,000 births, typically occurring unilaterally and
has a greater incidence in males [1]. Although often sporadic, congenital aural atresia can be
associated with other craniofacial abnormalities, notably those seen in Treacher-Collins and
ISSN: 2640-5148