The Value Of Soft Bronchoscopy In The Diagnosis Of Laryngealstridor Of Unknown Etiology In Children

Objective To evaluate the etiological diagnosis value of soft bronchoscopy in children with laryngeal stridor.Methods The clinical data of 402 children with laryngeal stridor wheezing were retrospectively analyzed which examined by soft bronchoscopy in Anhui provincial children’s hospital from January 2016 to January 2019.Results 402 cases of laryngeal stridor were diagnosed by soft bronchoscopy,317(78.8%)cases were diagnosed as congenital airway dysplasia,including 200(49.7%)cases of Congenital Laryngeal Chondromalacia which including 132 cases of single Laryngeal Chondromalacia and 68 cases with other respiratory tract dysplasia,117(29.1%)cases of respiratory dysplasia other than Laryngeal Chondromalacia;46(11.5%)cases of laryngitis;28(7.0%)cases of airway acquired stenosis and 11(2.7%)cases of foreign body.11 cases of foreign bodies in the respiratory tract were successfully removed by bronchoscopy.402 cases of children with laryngeal stri-dor were diagnosed according to clinical feature and bronchoscopy,combined with chest X-ray,chest CT,CTA and color Doppler echocardiography and other imagin g data,335(83.3%)cases were congenital laryngeal chondromalacia,16(4%)cases were other respiratory tract dysplasia(includeng 6 cases of subglottic and tracheal stenosis,5 cases of laryngeal space occupying lesions,4 cases of tracheobronchial malformation,1 cases of subglottic hemangioma),35(8.7%)cases of laryngitis,acquired airway stenosis in 15 cases including 13 cases of congenital heart disease,1 case of pulmonary artery sling,1 case of mediastinal cyst,1 case of foreign body.Congenital Laryngeal Chondromalacia,Respiratory dysplasia other than Laryngeal Chondromalacia and foreign body detected by flexible bronchoscopy were not consistent with clinical examination,which was statistically significant differ-ence(P<0.05).Conclusions Congenital laryngeal chondromalacia is the main cau se of laryngeal stridor,but it is often associated with other airway dysplasia,soft bronchoscopy can provides etiological diagnosis for children with laryngeal stridor wheezing,especially in the diagnosis of respiratory tract dysplasiaand and airway foreign body have greater advantages.