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High-resolution computed tomography evaluation of congenital aural atresia - how useful is this?
J Laryngol Otol. 2020 Jul; 134(7):610-622.JL

Abstract

OBJECTIVE

To depict various temporal bone abnormalities on high-resolution computed tomography in congenital aural atresia patients, and correlate these findings with auditory function test results and microtia subgroup.

METHODS

Forty patients (56 ears) with congenital malformation of the auricle and/or external auditory canal were evaluated. Auricles were graded according to Marx's classification, divided into subgroups of minor (grades I and II) and major (III and IV) microtia. Other associated anomalies of the external auditory canal, tympanic cavity, ossicular status, oval and round windows, facial nerve, and inner ear were evaluated.

RESULTS

Minor and major microtia were observed in 53.6 and 46.4 per cent of ears respectively. Mean hearing levels were 62.47 and 62.37 dB respectively (p = 0.98). The malleus was the most commonly dysplastic ossicle (73.3 vs 80.8 per cent of ears respectively, p = 0.53). Facial nerve (mastoid segment) abnormalities were associated (p = 0.04) with microtia subgroup (80 vs 100 per cent in minor vs major subgroups).

CONCLUSION

Microtia grade was not significantly associated with mean hearing levels or other ear malformations, except for external auditory canal and facial nerve (mastoid segment) anomalies. High-resolution computed tomography is essential in congenital aural atresia, before management strategy is decided.

Authors+Show Affiliations

Department of Radiodiagnosis, Maulana Azad Medical College and Associated Lok Nayak, Govind Ballabh Pant Institute of Postgraduate Medical Education and Research ('GIPMER'), and Guru Nanak Eye Centre ('GNEC') Hospitals, New Delhi, Delhi, India.Department of Radiodiagnosis, Maulana Azad Medical College and Associated Lok Nayak, Govind Ballabh Pant Institute of Postgraduate Medical Education and Research ('GIPMER'), and Guru Nanak Eye Centre ('GNEC') Hospitals, New Delhi, Delhi, India.Department of Radiodiagnosis, Maulana Azad Medical College and Associated Lok Nayak, Govind Ballabh Pant Institute of Postgraduate Medical Education and Research ('GIPMER'), and Guru Nanak Eye Centre ('GNEC') Hospitals, New Delhi, Delhi, India.Department of Otorhinolaryngology, Maulana Azad Medical College and Associated Lok Nayak, Govind Ballabh Pant Institute of Postgraduate Medical Education and Research ('GIPMER'), and Guru Nanak Eye Centre ('GNEC') Hospitals, New Delhi, Delhi, India.Department of Otorhinolaryngology, Maulana Azad Medical College and Associated Lok Nayak, Govind Ballabh Pant Institute of Postgraduate Medical Education and Research ('GIPMER'), and Guru Nanak Eye Centre ('GNEC') Hospitals, New Delhi, Delhi, India.Department of Radiodiagnosis, Maulana Azad Medical College and Associated Lok Nayak, Govind Ballabh Pant Institute of Postgraduate Medical Education and Research ('GIPMER'), and Guru Nanak Eye Centre ('GNEC') Hospitals, New Delhi, Delhi, India.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32686623

Citation

Gautam, R, et al. "High-resolution Computed Tomography Evaluation of Congenital Aural Atresia - How Useful Is This?" The Journal of Laryngology and Otology, vol. 134, no. 7, 2020, pp. 610-622.
Gautam R, Kumar J, Pradhan GS, et al. High-resolution computed tomography evaluation of congenital aural atresia - how useful is this? J Laryngol Otol. 2020;134(7):610-622.
Gautam, R., Kumar, J., Pradhan, G. S., Passey, J. C., Meher, R., & Mehndiratta, A. (2020). High-resolution computed tomography evaluation of congenital aural atresia - how useful is this? The Journal of Laryngology and Otology, 134(7), 610-622. https://doi.org/10.1017/S002221512000136X
Gautam R, et al. High-resolution Computed Tomography Evaluation of Congenital Aural Atresia - How Useful Is This. J Laryngol Otol. 2020;134(7):610-622. PubMed PMID: 32686623.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - High-resolution computed tomography evaluation of congenital aural atresia - how useful is this? AU - Gautam,R, AU - Kumar,J, AU - Pradhan,G S, AU - Passey,J C, AU - Meher,R, AU - Mehndiratta,A, Y1 - 2020/07/20/ PY - 2020/7/21/pubmed PY - 2020/9/9/medline PY - 2020/7/21/entrez KW - Facial Nerve KW - Microtia KW - Middle Ear KW - Temporal Bone SP - 610 EP - 622 JF - The Journal of laryngology and otology JO - J Laryngol Otol VL - 134 IS - 7 N2 - OBJECTIVE: To depict various temporal bone abnormalities on high-resolution computed tomography in congenital aural atresia patients, and correlate these findings with auditory function test results and microtia subgroup. METHODS: Forty patients (56 ears) with congenital malformation of the auricle and/or external auditory canal were evaluated. Auricles were graded according to Marx's classification, divided into subgroups of minor (grades I and II) and major (III and IV) microtia. Other associated anomalies of the external auditory canal, tympanic cavity, ossicular status, oval and round windows, facial nerve, and inner ear were evaluated. RESULTS: Minor and major microtia were observed in 53.6 and 46.4 per cent of ears respectively. Mean hearing levels were 62.47 and 62.37 dB respectively (p = 0.98). The malleus was the most commonly dysplastic ossicle (73.3 vs 80.8 per cent of ears respectively, p = 0.53). Facial nerve (mastoid segment) abnormalities were associated (p = 0.04) with microtia subgroup (80 vs 100 per cent in minor vs major subgroups). CONCLUSION: Microtia grade was not significantly associated with mean hearing levels or other ear malformations, except for external auditory canal and facial nerve (mastoid segment) anomalies. High-resolution computed tomography is essential in congenital aural atresia, before management strategy is decided. SN - 1748-5460 UR - https://www.unboundmedicine.com/medline/citation/32686623/High_resolution_computed_tomography_evaluation_of_congenital_aural_atresia___how_useful_is_this L2 - https://www.cambridge.org/core/product/identifier/S002221512000136X/type/journal_article DB - PRIME DP - Unbound Medicine ER -