Progress in aspiration pneumonia

Aspiration pneumonia is one kind of respiratory disease with high morbidity, high recurrence rate and heavy medical burden.Despite the cognition of aspiration pneumonia has improved in these years, a consistent definition or diagnostic criteria of aspiration pneumonia still lacks.This article focuses on the definition, epidemiology, microbiology, pathophysiology, diagnosis and treatment of aspiration pneumonia. Key words: Pneumonia, aspiration; Epidemiology; Microbiology; Pathophysiology; Diagnosis; Treatment