Abstract:Objective To investigate the clinical diagnostic essentials of atelectasis of pediatric Mycoplasma pneumoniae and raise awareness of the disease.Methods Retrospective analysis was performed on 672 cases of Mycoplasma pneumoniae pneumonia who were admitted in Department of Respiratory, Quanzhou Children′s Hospital from January 2019 to April 2020 which were divided into atelectasis group and normal group according to the lung image, 336 cases in each group.The clinical indexes of the two groups were compared, Logistic regression analysis was used to count the risk factors of atelectasis, and the ROC curve was drawn to find the reference cut-off value of atelectasis.Results The fever, wet rales and pleural effusion in the atelectasis group were more than those in the control group, and the history of allergy and wheezing in the atelectasis group were less than those in the control group, the differences were statistically significant (P<0.05).Heat course, neutrophil proportion, C-reaction protein (CRP), lactic dehydrogenase (LDH)and DNA damage and repair (DDR) in the atelectasis group were higher than those in the control group, and the differences were statistically significant (P<0.05).ROC curve showed that fever duration≥2.5 d, neutrophil ratio≥50.7%,CRP≥14.04 mg/L, DDR≥0.51 mg/L, LDH≥345.5 U/L, which were helpful for the diagnosis of atelectasis.Conclusion Children with Mycoplasma pneumoniae pneumonia with heat course longer than 2.5 d, lack of allergic history,presence of wet rales, neutrophils proportion, CRP, LDH, DDR above the critical values should pay attention to complicated with atelectasis.
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