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Medical-genetic examination covered 24 families of patients with congenital defects of the larynx and trachea. These developmental defects can be attributed to multiple unestablished defects (66.7%) or can be part of some congenital-hereditary syndromes (25%) such as chromosomal, genetic, teratogenic, of unknown etiology. The percentage of isolated developmental laryngeal and tracheal defects is relatively small--8.3%.

+33 cases of vascular tumors, 15 of congenital membranes, 12 of papillomatosis, 5 of cysts, 12 of abnormal laryngeal cartilages, 3 of tracheomalacia, 9 of stridor, 1 of fibrous polyp and 1 of mucous membrane folding in the interarytenoid region are reported. Operative interventions primarily endoscopic laser surgery were performed in children with congenital vascular tumors, membranes, cysts. Removal of papillomas in congenital papillomatosis conducted with the use of micro-instruments and CO2-laser was combined with immunomodulation. Children with laryngeal cartilage anomalies, tracheomalacia and stridor were subjected to prolonged nasotracheal intubation of even tracheotomy only in case of severe respiratory failure..

Congenital laryngeal and tracheal anomalies found in 1980-1995 in 91 children consisted of vascular tumors, laryngeal membranes, laryngeal cartilage anomaly, tracheomalacia, laryngeal papillomatosis, cysts, stridor (36.2%, 16.5%, 13.2%, 3.3%, 13.2%, 5.5%, 9.9%, respectively). Other causes are responsible for the defects in 2.2% of cases. Early symptoms of the above diseases are detailed. This information contributes to valid preliminary diagnosis and to optimal planning of further examination and treatment.