Objective To investigate the clinical features of pediatric patients who had plastic bronchitis (PB) and to explore the risk factors for respiratory support in the pediatric patients with PB in order to improve the ability to identify PB in children.
Methods The basic information and clinical manifestations of 86 children diagnosed with PB at West China Second University Hospital of Sichuan University from March 2014 to December 2019 were collected and analyzed retrospectively. The patients were divided into the respiratory support (RS) group and non-respiratory support (NRS) group as per their need for respiratory support. Logistic regression was conducted to analyze the risk factors for respiratory support in PB patients.
Results A total of 86 children with PB were included in the study, including 62 (72.1%) who were over 3 years old. 57 patients (66.3%) had complications. 56 patients were given respiratory support after admission. All the 86 children had a history of fever and cough, and 76 (88.4%) experienced fever peaks≥39.5°C. Chest imaging showed large lung consolidation or atelectasis in 82 cases (95.3%) and pleural effusion in 63 cases (73.3%). 70 cases (81.4%) were tested positive for pathogens, with the highest infection rate of 68.6% for mycoplasma pneumoniae. There were 30 patients (34.9%) in the NRS group and 56 patients (65.1%) in the RS group. Logistic regression analysis showed that patient being younger than 3 years old (OR=4.99) and having complications (OR=7.22) were independent risk factors for respiratory support in children with PB (all P<0.05).
Conclusions Clinically, severe clinical symptoms combined with other systemic complications, large lung consolidation or atelectasis, pleural effusion, and positive lab results for mycoplasma pneumoniae should be an alert indicating the possibility of having PB. Young age and complications were independent risk factors for respiratory support in PB patients.
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