Peter Ďurdík, Slavomír Nosáľ, Vladimír Zoľák, Ján Mikler, Ľubica Kováčiková, Tibor Šagát
Congenital laryngeal stridor is a common cause of stridor in newborns and infants. Stridor appears after the first few days of life and disappears during 1 - 2 years due to continuing laryngeal development. History, clinical picture and direct laryngoscopy are very important for the diagnosis. Treatment of congenital laryngeal stridor is usually not necessary. The authors present a case report of a boy - an infant who was observed for congenital laryngeal stridor. The viral respiratory infection caused worsening of stridor and development of respiratory failure. Following examinations did not confirm the diagnosis of congenital laryngeal stridor. Very rare cause of symptoms was diagnosed.