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Nasal pyriform aperture stenosis in adults
Tamer Erdem1, Orhan Ozturan, Gulnur Erdem
1Department of Otorhinolaryngology, Inonu University, School of Medicine, Malatya, Turkey.
American Journal of Rhinology
|March 24, 2004
Summary
Nasal pyriform aperture stenosis (NPAS) is a potential cause of adult nasal obstruction. This study establishes normative pyriform aperture width data and demonstrates surgical widening as an effective treatment for NPAS.
Area of Science:
- Otolaryngology
- Medical Imaging
- Surgical Techniques
Background:
- Congenital nasal pyriform aperture stenosis (CNPAS) is known to cause infant respiratory issues.
- Nasal pyriform aperture stenosis (NPAS) in adults remains undiscussed.
- Normative data for adult pyriform aperture width is needed for diagnosing nasal bony inlet stenosis.
Purpose of the Study:
- To define normative data for pyriform aperture width in adults.
- To evaluate adult subjects with paranasal sinus symptoms but no nasal obstruction.
- To report surgical outcomes for adult NPAS cases.
Main Methods:
- Pyriform aperture width measured using axial CT scans in 80 asymptomatic adults.
- Maximal distance between nasal processes of maxillary bones recorded.
- Two adult males with NPAS underwent surgical widening via a sublabial approach.
Main Results:
- Mean pyriform aperture width in adults is 21.6 ± 2.2 mm (range, 17-27 mm).
- Width in men: 21.9 ± 2.1 mm; in women: 21 ± 2.2 mm.
- Surgical widening improved stenotic apertures from 10-12 mm to 21-24 mm.
Conclusions:
- NPAS should be considered in the differential diagnosis of adult nasal obstruction.
- Surgical enlargement via a sublabial approach is effective for NPAS.
- This study provides essential normative data for adult NPAS diagnosis.