#ir #peds
Pneumonia is an acute inflammation of the parenchyma of the lower respiratory tract caused by a microbial pathogen. Bacterial infections are usually primary but, occasionally, viral respiratory tract infections such as influenza are followed by bacterial pneumonias.
[5] Uncomplicated pneumonias may be accompanied by small parapneumonic effusions. Evidence of empyema (pus in the pleural space), a lung abscess or a necrotic portion of lung parenchyma implies the development of a complicated pneumonia.
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Uncomplicated Pneumoniay, because these pneumonias may be caused by different pathogens or require more extensive investigation. The present practice point replaces a previous document published in 2011.[4]
Definition and host risk factors
<span>Pneumonia is an acute inflammation of the parenchyma of the lower respiratory tract caused by a microbial pathogen. Bacterial infections are usually primary but, occasionally, viral respiratory tract infections such as influenza are followed by bacterial pneumonias.[5] Uncomplicated pneumonias may be accompanied by small parapneumonic effusions. Evidence of empyema (pus in the pleural space), a lung abscess or a necrotic portion of lung parenchyma implies the development of a complicated pneumonia.
Etiology
The most common causes of pneumonia in infants and preschool children are viruses that usually, but not exclusively, circulate in winter (eg, respirat Summary
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