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Congenital abnormalities associated with microtia: A 10-YEARS retrospective study
Antoine Paul1, Sophie Achard1, François Simon1
1Pediatric Otolaryngology and Head and Neck Surgery Department, Necker Enfants-Malades Assistance Publique - Hôpitaux de Paris, Université de Paris, Paris, France.
Summary
Microtia, a congenital ear defect, is frequently linked to other developmental issues. This study highlights common associated anomalies like hemifacial microsomia and recommends comprehensive assessments for affected children.
Area of Science:
- Medical Genetics
- Pediatric Otolaryngology
- Congenital Malformations
Background:
- Microtia is a congenital auricular malformation with a significant syndromic component (35%-55%).
- Previous studies show heterogeneous results regarding the prevalence of associated malformations.
- Accurate prevalence data is crucial for effective management.
Purpose of the Study:
- To describe associated abnormalities in a large cohort of children with microtia.
- To determine the optimal assessment strategy for microtia patients.
- To identify the most frequent syndromic entities associated with microtia.
Main Methods:
- Retrospective, observational cohort study.
- Data collected from medical records (2007-2017) via a computer database.
- Inclusion of clinical, imaging, and genetic data.
Main Results:
- 694 children included: 84.6% unilateral, 15.4% bilateral microtia.
- Inner ear malformations in 14.1% of affected ears.
- Common anomalies: hemifacial microsomia (29%), velopharyngeal insufficiency (9%), ophthalmologic (6.2%), vertebral (5.9%), cardiac (5.5%), and renal (3%).
- Identified syndromes: Goldenhar, Treacher-Collins, and Guion-Almeida.
Conclusions:
- Comprehensive clinical assessment is essential upon microtia diagnosis.
- Systematic screening for velopharyngeal insufficiency is recommended.
- Specialized care for hemifacial microsomia is crucial, with mild forms potentially indicating Guion-Almeida syndrome, especially with learning disabilities.

