Congenital nasal pyriform aperture stenosis; our experience of 34 cases.

OBJECTIVES

To study our population of patients with congenital nasal pyriform aperture stenosis (CNPAS) in terms of incidence and socioeconomic status; the effect of pyriform aperture size, gestational age, birth weight, and whether congenital abnormalities are associated with surgical requirement.

METHODOLOGY

Retrospective case note review of all patients treated for CNPAS at a single tertiary paediatric referral site was undertaken. Diagnosis was made on the basis of a pyriform aperture of <11 mm on CT scanning; patient demographics were collected to explore risk factors for surgery and surgical outcomes.

RESULTS

34 patients were included in the series, 28 (84%) of whom underwent surgery. 58.8% of subjects had an associated mega central incisor. A smaller pyriform aperture size was seen in neonates requiring surgery (4.87 mm ± 1.24 mm vs 6.55 mm ± 1.41 mm, p = 0.031). There was no difference in gestational age in neonates requiring surgery (p = 0.074). Requirement for surgery was not associated with co-existing congenital anomalies (p = 0.297) or lower birth weight (p = 0.859). Low socioeconomic status was not significantly associated with requiring surgery but a potential link between CNPAS and deprivation was identified (p = 0.0583).

CONCLUSION

These results suggest that a pyriform aperture of less than 6 mm requires surgical intervention. Associated birth anomalies add additional management considerations but in this cohort were not associated with increased need for surgery. A potential association between CNPAS and low socioeconomic status was identified.