Al-Kaabi Juma, Ahmed Saeed, Rizvi Azhar, Burney Ikram
Department of Medicine, Sultan Qaboos University Hospital, Al Khod, Sultanate of Oman.
Oman Med J. 2008 Jul;23(3):189-91.
Congenital nasal pyriform aperture stenosis (CNPAS) is a recently defined clinical entity that causes airway obstruction in the neonate as a result of narrowing of the nasal pyriform aperture. The pyriform aperture is the narrowest, most anterior portion of the nasal airway, and a slight decrease in its cross sectional area will significantly increase the nasal airway resistance. This entity should be kept in the differential diagnosis of any neonate or infant with signs and symptoms of upper air way obstruction. The CNPAS presents with symptoms of nasal airway obstruction, which are often characterized by episodic apnea and cyclic cynosis.
先天性鼻梨状孔狭窄（CNPAS）是一种最近定义的临床病症，由于鼻梨状孔变窄导致新生儿气道阻塞。梨状孔是鼻气道最狭窄、最靠前的部分，其横截面积稍有减小就会显著增加鼻气道阻力。对于任何有上气道阻塞体征和症状的新生儿或婴儿，都应将这种病症纳入鉴别诊断。CNPAS表现为鼻气道阻塞症状，通常以发作性呼吸暂停和周期性发绀为特征。
