TY - JOUR
T1 - Skull Base Anatomy in Patients with Bilateral Choanal Atresia
T2 - A Radiographic Study
AU - Pool, Christopher
AU - Slonimsky, Einat
AU - Nayak, Roshan
AU - Engle, Lisa
AU - Zhu, Junjia
AU - Wilson, Meghan N.
N1 - Funding Information:
Funding There are no financial disclosures for any author.
Publisher Copyright:
© 2022 Thieme Medical Publishers, Inc.. All rights reserved.
PY - 2022/6/1
Y1 - 2022/6/1
N2 - Introduction The risk of skull base injury during choanal atresia repair can be mitigated via thorough understanding of skull base anatomy. There is a paucity of data describing differences in skull base anatomy between patients with coloboma, heart defects, atresia choanae, growth retardation, genital abnormalities, and ear abnormalities (CHARGE) syndrome and those without. Objectives The aim of this study was to measure nasal and skull base anatomy in patients with isolated bilateral choanal atresia (BCA), CHARGE syndrome, and other syndromic congenital anomalies. Methods Retrospective chart review of patients with bilateral choanal atresia and computed tomography of the face between 2001 and 2019 were evaluated. Choanal width, height, mid-nasal height, and skull base slope were measured radiographically. Differences in anatomy between healthy patients, those with CHARGE syndrome, and those with other congenital anomalies were compared. Results Twenty-one patients with BCA and relevant imaging were identified: 7 with isolated BCA, 6 with CHARGE syndrome, and 8 with other congenital anomalies. A t -test indicated insignificant difference in skull base slope, choanal height, choanal width, or mid-nasal skull base height between isolate BCA cases and patients with any congenital anomaly. When comparing CHARGE to isolated BCA cases, mid-nasal height was shorter in CHARGE patients (p = 0.03). There were no differences in measurements between patients with congenital anomalies excluding CHARGE (p > 0.05). Two patients in the congenital anomaly group were found to have bony skull base defects preoperatively. Conclusion This study represents the largest description of skull base and nasal anatomy in patients with CHARGE syndrome and BCA. Surgeons should be aware of the lower skull base in CHARGE patients to avoid inadvertent skull base injury.
AB - Introduction The risk of skull base injury during choanal atresia repair can be mitigated via thorough understanding of skull base anatomy. There is a paucity of data describing differences in skull base anatomy between patients with coloboma, heart defects, atresia choanae, growth retardation, genital abnormalities, and ear abnormalities (CHARGE) syndrome and those without. Objectives The aim of this study was to measure nasal and skull base anatomy in patients with isolated bilateral choanal atresia (BCA), CHARGE syndrome, and other syndromic congenital anomalies. Methods Retrospective chart review of patients with bilateral choanal atresia and computed tomography of the face between 2001 and 2019 were evaluated. Choanal width, height, mid-nasal height, and skull base slope were measured radiographically. Differences in anatomy between healthy patients, those with CHARGE syndrome, and those with other congenital anomalies were compared. Results Twenty-one patients with BCA and relevant imaging were identified: 7 with isolated BCA, 6 with CHARGE syndrome, and 8 with other congenital anomalies. A t -test indicated insignificant difference in skull base slope, choanal height, choanal width, or mid-nasal skull base height between isolate BCA cases and patients with any congenital anomaly. When comparing CHARGE to isolated BCA cases, mid-nasal height was shorter in CHARGE patients (p = 0.03). There were no differences in measurements between patients with congenital anomalies excluding CHARGE (p > 0.05). Two patients in the congenital anomaly group were found to have bony skull base defects preoperatively. Conclusion This study represents the largest description of skull base and nasal anatomy in patients with CHARGE syndrome and BCA. Surgeons should be aware of the lower skull base in CHARGE patients to avoid inadvertent skull base injury.
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U2 - 10.1055/s-0040-1722230
DO - 10.1055/s-0040-1722230
M3 - Article
C2 - 35769795
AN - SCOPUS:85100732313
SN - 2193-634X
VL - 83
SP - 223
EP - 227
JO - Journal of Neurological Surgery, Part B: Skull Base
JF - Journal of Neurological Surgery, Part B: Skull Base
IS - 3
ER -