The study represents a review of most common pathologic microorganisms with persistent lung infiltrates in the bronchoalveolar lavage (BAL) of paediatric patients. The aim of the paper was to present the results of bronchoscopy and bronchoalveolar lavage in children with persistent lung infiltrates and most common pathologic microorganisms isolated in bronchoalveolar lavage. This is a prospective and retrospective study. Information on the paediatric findings and BAL results of bronchoscopy were obtained from the hospital records. The records of fifty patients were analyzed. All patients had persistent lung infiltrates (lower airway infection). BAL was performed in the middle lobe and lingula by bronchoscope (Olympus 3,5 mm) and sent for microbiological analysis. There was no serious desaturation during bronchoscopy. Bronchoscopy was performed under general anesthesia (sedation, propofol, midazolam, morphium). The most common pathologic microorganisms identified in BAL were: Streptococcus α haemoliticus (16%), Pseudomonas aeruginosa (12%) followed by Candida albicans (10%) and Klebsiella pneumoniae (8%). Our study results have shown that bronchoscopy with BAL is recommended for isolating bacteria as causes of lung infection and is particularly suitable for proving pneumonias caused by microorganisms.
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