Community-acquired pneumonia: epidemiology, etiology and clinical-morphological parallels

Retrospective assessment of results of pathoanatomical researches on the deceased patients with community-acquired pneumonia treated in City Clinical Hospital No. 1 (Novosibirsk) in 2016–2018 is carried out for the purpose of studying gender, age features, etiology, clinical-morphological forms of the community-acquired pneumonia which resulted in lethal outcome. Morphological and bacteriological researches of lung samples in deceased patients with the diagnosis of pneumonia were conducted.

It is revealed that lethal outcomes owing to community-acquired pneumonia were more often observed in men, than in women, at advanced and senile age (56–67%). The rate of lethal outcomes owing to community-acquired pneumonia among all number of pathoanatomical thanatopsy made 2.6–3.8%. Lethality within the period of 24 hours of hospitalization was registered in 15–32% of cases. The divergence of clinical and pathoanatomical diagnoses reached 17.6%. Klebsiella pneumoniaе, Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa and also mixed-strain infection were the most widespread verifi ed causative agents of community-acquired pneumonia. The main clinical-morphological form of community-acquired pneumonia was the widespread bronchial pneumonia (purulent, with abscessing) (up to 87.8%) which did not present specifi c morphological picture depending on a type of the causative agent.

Conflict of interest. The authors declare no conflict of interest.

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