摘要: CONTENTS General considerations Materials and methods Case histories Comment Antomy Prenatal postnatal development Comparative anatomy Autopsy Microscopic Birth trauma Character of the vocal performance phonetics Therapy Conclusions GENERAL CONSIDERATIONS THE NOISY respiration heard soon after birth mostly on inspiration is called congenital laryngeal stridor. Kennedy New 1 Bowman Jackson 2 reported their experiences with this condition under broader term "chronic stridor in childhood." Schwartz, 3 who gave an excellent historical survey, advocated replacing "congenital stridor" by "inspiratory collapse." Since noisy breathing merely a symptom, underlying pathological conditions are endlessly varied. local changes may be responsible, but main question was well formulated Hill 4 when he postulated that there must some condition, structural variation or malformation portion larynx involved, which essential factor