Analysis on clinical features of 11 cases of Mycoplasma pneumoniae pneumonia complicated with pulmonary embolism in children

FAN Yuhong; LI Junli; SU Xuewen

doi:10.3969/j.issn.1674-3806.2025.08.05

Abstract：Objective To analyze the clinical features and prognosis of 11 cases of Mycoplasma pneumoniae pneumonia(MPP)complicated with pulmonary embolism in children.Methods A retrospective analysis was conducted on the clinical data and follow-up results of 11 pediatric patients with MPP complicated with pulmonary embolism who were admitted to Inner Mongolia Autonomous Region People's Hospital from May 2023 to May 2024.Results Among the 11 pediatric patients,there were 5 males and 6 females,with a median age of 8 years(ranging from 5 to 14 years).Fever and cough were found to exist in all the pediatric patients,accompanied by chest pain in 5 patients,difficulty breathing in 3 patients,decreased breath sounds in 6 patients,wheezing in 3 patients,pleural effusion in 5 patients and mediastinal emphysema in 1 patient.Pulmonary computed tomography angiography(CTA)showed partial branch embolism in the pulmonary artery.The levels of D-dimer in all the pediatric patients were increased to varying degrees[(1.22-17.07)μg/mL].The 11 pediatric patients were treated with macrolide antibiotics,doxycycline and low-molecular-weight heparin calcium.Seven pediatric patients'conditions were controlled,while 4 pediatric patients had residual bronchiolitis obliterans.Conclusion MPP complicated with pulmonary embolism in children mostly presents with cough,fever,chest pain,and difficulty breathing,accompanied by elevated levels of D-dimer at different levels.Active anti-infection,anticoagulant and thrombolytic treatments should be given to the children,and most of them have a good prognosis.