Objective To explore the early warning value of experimental indicators for severe Mycoplasma pneumoniae pneumonia(SMPP)and the clinical characteristics under bronchoscopy,and provide reference for early diagnosis of SMPP.Methods The case data of children with Mycoplasma pneumoniae pneumonia(MPP)admitted to Suzhou Hospi-tal Affiliated to Anhui Medical University from January to December 2023 was collected.According to the severity of the condition,they were divided into a severe group and a common group,with 40 cases randomly selected from each group.The differences in general conditions,experimental indicators,and bronchoscopy characteristics between the two groups were compared for statistical analysis.Results There was no statistically significant difference in the proportion of neu-trophils and procalcitonin(PCT)between the two groups(P>0.05),while the severe group had higher levels of white blood cells(WBC),C-reactive protein(CRP),lactate dehydrogenase(LDH),and D-dimer(D-D)than the normal group(P<0.05).Multivariate logistic regression analysis showed that WBC,CRP,LDH,and D-D were independent risk factors for SMPP(P<0.05).ROC curve analysis showed that CRP,LDH,and D-D have high predictive value for the diagnosis of SMPP(P<0.05),with the optimal thresholds of 19.42 mg/L,361.00 IU/L,and 1.075 mg/L,respec-tively.The proportion of bronchoscopy,mucus emboli under bronchoscopy,and neutrophil count in lavage fluid in the se-vere group were higher than those in the normal group(P<0.05).Conclusion CRP,LDH,and D-D are independent risk factors for SMPP.When CRP>19.42 mg/L,LDH>361.00 IU/L,and D-D>1.075 mg/L,it is helpful for early i-dentification of SMPP.The proportion of mucus embolism under SMPP endoscopy is high,and active bronchoscopy treat-ment is needed.At the same time,the appearance of the lavage fluid is cloudy and the proportion of neutrophils is high,which can further evaluate the condition.
Severe Mycoplasma pneumoniae pneumoniaExperimental indicatorsEarly warning valueBronchoscopy