Data Collection
Bronchoscopic manifestations, time between disease onset and bronchoscopy, lung images, serum C-reactive protein (CRP), and body temperature changes were analyzed retrospectively. The following data were assessed: bronchoscopic manifestations of pediatric SMPP patients with different imaging findings; lavage fluid pathogen detection; time of body temperature recovery to normal, and total fever course after bronchoscopy; OB incidence, time to OB onset, and disease characteristics; pulmonary imaging results, including lesion site, type, imaging findings, and therapeutic outcome; duration of fever during disease course and after bronchoscopy; inflammatory indexes, such as routine blood and CRP test results.