453 case histories of children with acquired laryngo-tracheal stenosis (LTS) have been analysed. Etiological factors of the disease, age at the moment of respiratory lesion, duration of the intubation were examined. LTS developed in the majority of patients (58.3%) within the first 3 years of life. At this age boys suffer from LTS 2.5 times more frequently than girls. The stenosis was caused by tracheal intubation in 86.1% children. The intubation resulted from acute stenosing laryngotracheobronchitis (47.5%), craniocerebral trauma (13.2%), operations (12.8%), acute pathology of CNS (6.8%). LTS in boys develops 3.1 times more frequently in tracheal intubation for acute stenosing laryngotracheobronchitis and 2.9 times more frequently in intubation for acute CNS pathology. In intubation for other reasons the stenosis rate does not depend on the gender. The statistical data obtained by the authors require further clinico-immunological investigations.
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