Nowadays, newborns that required prolonged respiratory maintenance for different reasons are more often surviving. Increase in the number of complications is observed on the background of positive clinical effects of certain component of intensive therapy. Search for the factors, which provoke appearance of recurrent bronchial obstruction syndrome, is an important component and basis of prophylaxis.

The aim of our research was to conduct analysis of factors that provoke the development of recurrent bronchial obstruction syndrome.

To build mathematical model of bronchial obstruction development in young children with respiratory disorders in neonatal period,, the method of logistic regression was used

The results of conducted analysis enabled to detect that the presence of respiratory therapy significantly determines the risk of appearance of recurrent bronchial obstruction syndrome and suggest mathematical model of individual calculation of risk factors in this pathology. Data of conduction of mathematical analysis can be used for elaboration of a complex of rehabilitation measures concerning the development of recurrent bronchial obstruction syndrome in children, who suffered respiratory disorders in neonatal period. The highest risk of recurrent bronchial obstruction syndrome development in children born before 29 gestational week with simultaneous combination of prolonged (over 700 hours) total period of respiratory therapy.

Elaborated method of individual calculation of the risk of recurrent bronchial obstruction syndrome development in young children, who experienced respiratory disorders in neonatal period, has practical significance and can be applied in everyday clinical practice. 

As more data is collected, hematologists will be able to gain more insight into the impact of coronavirus disease 2019 (COVID-19) on pediatric patients with hematological malignancies. Material and methods: We analysed 21 cases of COVID-19 in pediatric patients with onco-hematological diseases treated in the Western Ukrainian Pediatric Medical Center from March 2020 through May 2021. The majority of patients (71.4%) were diagnosed with acute lymphoblastic leukemia. All patients from the analyzed cohort had an asymptomatic, mild or moderate course of coronavirus-19 infection. The most common symptoms of COVID-19 were fever, cough, gastrointestinal symptoms, and dermatitis. Severe severe acute respiratory syndrome coronavirus 2 increased the risk of liver toxicity and venous thrombosis. Results and conclusion: Our analysis showed that pediatric patients with hematological malignancies need the same treatment approach for COVID-19 as for other infective complications.