Congenital nasal pyriform aperture stenosis and single central maxillary incisor: Preoperative evaluation with three-dimensional computed tomography

Jon Kway Huang, Sho Jen Cheng, Cheng Chien Yang, Chun Ho Yun, Shin Lin Shih

研究成果: 雜誌貢獻文章同行評審

5 引文 斯高帕斯(Scopus)

摘要

Background and Purpose: Congenital nasal pyriform aperture stenosis (CNPAS) is an uncommon cause of nasal airway obstruction in neonates and infants. It is frequently associated with a single central maxillary incisor (SCMI). The purpose of this study was to assess whether 3-dimensional spiral computed tomography (3D spiral CT) could be used for the diagnosis of CNPAS and for detecting SCMI in CNPAS patients before tooth eruption. Methods: From January 1996 to December 2001, 16 patients (mean age, 2 ± 3 months) with clinically suspected CNPAS and 13 normal control subjects (mean age, 28 ± 32 months) were studied prospectively by 3D spiral CT. On the 3D CT image of each subject, the middle pyriform aperture width (MPAW), upper 1/4 PA width (UPAW), and middle internasal process width (MINPW) were measured. In addition, the ratios of MINPW to MPAW and of MINPW to UPAW were calculated. SCMI was identified as a bigger tooth with singular convexity. Results: SCMI was diagnosed in 11 of the 16 CNPAS patients. In the CNPAS patient group, the mean MINPW (5 ± 1 mm) was significantly shorter than the mean MPAW (9 ± 1 mm) and the mean UPAW (8 ± 1 mm) [P < 0.001]. However, in the normal control group, the mean UPAW (13 ± 2 mm) was significantly shorter thant the mean MPAW (16 ± 3 mm) and the mean MINPW (16 ± 3 mm) [p < 0.01]. In the CNPAS patients, the mean ratios of both MINPW to MPAW (0.5 ± 0.1) and of MINPW to UPAW (0.6 ± 0.1) were significantly lower than the corresponding mean ratios in the normal control subjects (1.0 ± 0.1 and 1.3 ± 0.2, respectively; both p < 0.001). Conclusion: Our results indicate that CNPAS is frequently associated with a SCMI and CNPAS patients have a significant reduction in the MINPW and in the ratios of MINPW to MPAW and of MINPW to UPAW. We conclude that 3D spiral CT can be used for diagnosis of CNPAS and for detecting SCMI in CNPAS patients before tooth eruption.
原文英語
頁(從 - 到)37-40
頁數4
期刊Journal of the Formosan Medical Association
103
發行號1
出版狀態已發佈 - 一月 1 2004
對外發佈

ASJC Scopus subject areas

  • 醫藥 (全部)

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