Bronchial Obstruction in Children

Diagnostics of bronchial obstruction 
syndrome
 In the study of clinical and anamnestic data, you must pay 
attention to: 
• past illnesses 
• the presence of recurrence of bronchial obstruction 
• atopy in the family 
N
ewly diagnosed BOS of a mild severity, which has 
developed against the background of a respiratory infection, 
does not require additional tests.

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At recurrent course of BOS, complex surveys should include: 
•CBC 
•screening for chlamydia, mycoplasma, cytomegalovirus, herpes 
and pneumocystis infection 
•comprehensive study on the presence of helminths (toxocariasis, 
ascariasis) 
•allergy survey 
•consultation of an otolaryngologist - to children with the 
syndrome of "noisy breathing " 

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Radiography of the chest cavity 
is not required by the study in 
children with BOS. It is performed at: 
 
•suspected complicated course of BOS (atelectasis)
•suspected foreign body
•recurrent course of BOS
•to exclude pneumonia.
According to indications, bronchoscopy, bronchography, 
scintigraphy, angiopulmography, CT of the lungs are carried 
out. 
The volume of the survey is determined individually in each 
case.

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The external respiratory function 
in the presence of noisy breathing in 
children older than 5-6 years is studied obligatory.
 
Currently, the most widespread is dynamic spirography, which estimates the 
"flow-volume" ratio. 
The most informative indicators at the presence of airflow obstruction are the 
reduced: 
1) forced expiratory volume in 1 second (FEV1); 
2) peak expiratory flow rate (PSV). 
In the absence of overt signs of bronchial obstruction, conducting of a