先天性後鼻孔閉鎖症の1例

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A case of bilateral congenital choanal atresia is presented. The patient was a 16-year-old girl who had suffered from thick, mucoid discharge and complete nasal obstruction since birth. Although she gradually learned to breathe through her mouth, she often encountered respiratory distress with cyanosis in the early stages of life. A diagnosis of choanal atresia was made when a catheter failed to pass through the nose into the pharynx. The nasopharyngography confirmed the posterior nasal obstruction.Surgical correction was performed by a transpalatine approach under general anesthesia. Following exposure of the posterior choanal region via the transpalatine approach, the membraneous tissue which occluded the choanae was excised. Silicon tubes were left inserted into the opened choanae for 2 weeks. No remarkable complication has been observed postoperatively. The choanae are still open and the patient breathes satisfactorily through her nose.From 1923 to 1979, 45 cases of congenital choanal atresia have been reported in the Japanese literature. These cases are analyzed in terms of sex, laterality, type and concomitant anomalies. Our present report is the 45th case of congenital choanal atresia to be reported in Japan.
耳鼻咽喉科臨床学会の論文