ABSTRACT
Choanal atresia is the most common congenital anomally of the nose and has a frequency of aproximately 1/7000 live births. It consists of a unilateral or bilateral bony (29%) or bony-membranous(71%) wall. Nearly 50% of affected infants have other congenital anomalies or CHARGE syndrome that include: coloboma, heart disease, choanal atresia, growth and development retardation, ...
