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Published on: February 24, 2023

Difference of clinical features in childhood Mycoplasma pneumoniae pneumonia

You-Sook Youn1, Kyung-Yil Lee, Ja-Young Hwang

  • 1Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea. leekyungyil@catholic.ac.kr.

BMC Pediatrics
|July 8, 2010
PubMed
Abstract

Insights

Older children with Mycoplasma pneumoniae pneumonia (MP) experience prolonged fever and severe lung issues. Early diagnosis using IgM serology is recommended for accurate MP assessment.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Pulmonology

Background:

  • Mycoplasma pneumoniae pneumonia (MP) affects 10-40% of community-acquired pneumonia cases.
  • Clinical features of MP in children vary by age and radiographic patterns.

Purpose of the Study:

  • To evaluate differences in clinical features of pediatric MP based on age.
  • To assess variations in clinical presentation related to chest radiographic patterns.

Main Methods:

  • 191 children with MP diagnosed via serologic tests (indirect microparticle agglutination, cold agglutinins).
  • Patients grouped by age (<2, 3-5, >6 years) and pneumonia pattern (bronchopneumonia, segmental/lobar).

Main Results:

  • Older children (>6 years) had longer fever, higher CRP, and more severe pneumonia.
  • Segmental/lobar pneumonia associated with older age, longer fever, lower WBC, and lymphocyte counts.
  • Severe lesions linked to prolonged fever, high CRP, high seroconversion rates, and low lymphocytes.

Conclusions:

  • Older children with MP exhibit more severe pulmonary lesions and prolonged fever.
  • Pulmonary lesion severity correlates with lack of diagnostic IgM and lymphocyte count.
  • Paired IgM serologic testing is crucial for early and definitive MP diagnosis.

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