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Antigen-Capture Enzyme-Linked Immunosorbent Assay for Specific Detection of Mycoplasma pneumoniae
Published on: February 24, 2023
Increased procalcitonin level is a risk factor for prolonged fever in children with Mycoplasma pneumonia
Ji Eun Jeong1, Ji Eun Soh1, Ji Hee Kwak1
1Department of Pediatrics, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
Purpose:
Macrolide-resistant Mycoplasma pneumoniae pneumonia (MPP) is characterized by prolonged fever and radiological progression despite macrolide treatment. Few studies have examined serum procalcitonin (PCT) level in children with MPP. We aimed to investigate the association of acute inflammation markers including PCT with clinical parameters in children with MPP.
Methods:
A total of 147 children were recruited. The diagnosis of MPP relied on serial measurement of IgM antibody against mycoplasma and/or polymerase chain reaction. We evaluated the relationships between C-reactive protein (CRP), PCT, and lactate dehydrogenase (LDH) levels and white blood cell (WBC) counts, and clinical severity of the disease. We used multivariate logistic regression analysis to estimate the odds ratio for prolonged fever (>3 days after admission) and hospital stay (> 6 days), comparing quintiles 2-5 of the PCT levels with the lowest quintile.
Results:
The serum PCT and CRP levels were higher in children with fever and hospital stay than in those with fever lasting ≤ 3 days after admission and hospital stay ≤ 6 days. CRP level was higher in segmental/lobar pneumonia than in bronchopneumonia. The LDH level and WBC counts were higher in children with fever lasting for >3 days before compared to those with fever lasting for ≤ 3 days. The highest quintile of PCT levels was associated with a significantly higher risk of prolonged fever and/or hospital stay than the lowest quintile.
Conclusion:
Serum PCT and CRP levels on admission day were associated with persistent fever and longer hospitalization in children with MPP.
Insights
Serum procalcitonin (PCT) and C-reactive protein (CRP) levels on admission can predict prolonged fever and hospital stays in children with Mycoplasma pneumoniae pneumonia (MPP). Higher PCT levels indicate a greater risk for these outcomes.
Area of Science:
- Pediatrics
- Infectious Diseases
- Clinical Chemistry
Background:
- Macrolide-resistant Mycoplasma pneumoniae pneumonia (MPP) presents challenges with prolonged fever and disease progression.
- Limited research exists on serum procalcitonin (PCT) levels in pediatric MPP cases.
Purpose of the Study:
- To investigate the association between acute inflammation markers, including PCT, and clinical parameters in children diagnosed with MPP.
- To identify predictors of prolonged fever and hospitalization in pediatric MPP.
Main Methods:
- A cohort of 147 children diagnosed with MPP was studied.
- Serum levels of PCT, C-reactive protein (CRP), lactate dehydrogenase (LDH), and white blood cell (WBC) counts were analyzed.
- Multivariate logistic regression assessed the relationship between PCT levels and prolonged fever/hospital stay.
Main Results:
- Elevated serum PCT and CRP levels correlated with longer fever duration and hospital stays.
- Higher CRP levels were observed in segmental/lobar pneumonia compared to bronchopneumonia.
- The highest quintile of PCT levels significantly increased the risk of prolonged fever and/or hospitalization.
Conclusions:
- Serum PCT and CRP levels at admission are valuable indicators of persistent fever and extended hospitalization in pediatric MPP.
- These inflammatory markers can aid in predicting disease severity and duration in children with MPP.
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