Abstract

To characterize the risk factors for difficult removal of tracheobronchial foreign body (FB) by rigid bronchoscopy in children. We retrospectively analyzed clinical data of 1026 pediatric patients (age: 0-18 years) diagnosed with tracheobronchial FB between September 2018 and August 2021. All patients underwent rigid bronchoscopy as the first intervention at our hospital. Children aged 1-3 years accounted for 83.7% cases in our cohort. The most common symptoms were cough and wheeze. FBs were more frequently found in the right bronchus, and trachea FBs accounted for only 8.19% cases. The success rate of rigid bronchoscopy in a single attempt was 97.27%. 12.18% of the cases were defined as difficult removal of FB. On univariate analysis, age, CT findings (pneumonia), type of FB, diameter of FB, FB location, granulation tissue formation, and the seniority of the surgeon were identified as risk factors for difficult removal of tracheobronchial FBs. On multivariate analysis, age ≥3 years, FB diameter ≥10mm, FBs located in left bronchus, multiple FBs, granulation tissue, and the seniority of surgeon (<3 years, ≥5 years) were independent risk factors for difficult removal. Age, FB diameter, location of FB, granulation tissue formation, and the seniority of the surgeon were risk factors for difficult removal of FBs by rigid bronchoscopy.

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