Bronchoscopy with bronchoalveolar lavage (BAL) is an advanced diagnostic procedure in pediatric pulmonology. It allows direct visualization of the airways and collection of secretion samples from the lungs, contributing decisively to the investigation of complex or persistent respiratory problems.
What is bronchoscopy:
Bronchoscopy is an endoscopic examination during which a thin, flexible tube with a camera at its tip (bronchoscope) is inserted through the nose or mouth into the airways.
It enables the pediatric pulmonologist to:
- directly examine the trachea and bronchi
- identify anatomical abnormalities
- detect inflammation, secretions or foreign bodies.
What is bronchoalveolar lavage (BAL):
During bronchoscopy, bronchoalveolar lavage (BAL) may be performed.
The procedure involves:
- instillation of a small amount of sterile saline into the airways
- immediate aspiration of the fluid
- removal of thick secretions obstructing a particular area
- collection of bronchial samples containing cells and microorganisms from the alveoli.
The sample is sent for microbiological, cytological and immunological analysis.
When is it indicated:
Bronchoscopy with BAL is performed in cases such as:
- persistent or unexplained chronic cough
- recurrent or treatment-resistant infections
- suspected foreign body aspiration
- investigation of interstitial lung diseases or ciliary dyskinesias
- hemoptysis or abnormal findings on imaging
- immunocompromised children with pulmonary infiltrates.
How is the procedure performed:
The examination is performed in a controlled hospital environment, usually under sedation or general anesthesia, to ensure comfort and safety for the child.
The duration is relatively short and the child is closely monitored throughout.
Is it safe?
Bronchoscopy is generally safe when performed by a specialized pediatric pulmonologist and anesthesiologist, in a properly equipped children's hospital.
Possible but rare complications include:
- transient cough or hoarseness
- oxygen desaturation
- low-grade fever after the procedure
- hemoptysis
- pneumothorax.
Proper patient selection and the experience of the medical team minimize the risks.
Why is it important:
Bronchoscopy with BAL offers:
- accurate diagnosis in difficult cases
- targeted therapeutic approach
- avoidance of unnecessary or empirical treatments
- immediate clearance of obstructed areas in the lung that impede the patient's breathing effort
- valuable information for chronic or rare lung diseases.
It is one of the most reliable tools for in-depth investigation of children's respiratory health.
