Research Article: Age and hypoalbuminemia independently predict pulmonary consolidation in children with 23S rRNA A2063G-mutant Mycoplasma pneumoniae pneumonia: a retrospective single-center study
Abstract:
Mycoplasma pneumoniae pneumonia (MPP) with 23S rRNA A2063G mutation is prone to progressive pulmonary consolidation. This study aimed to explore the clinical characteristics and independent risk factors of pulmonary consolidation among such children.
A retrospective, single-center analysis was conducted on the clinical data of children with MPP admitted to a Grade A tertiary general hospital between January 2023 and December 2024. Based on targeted next-generation sequencing (tNGS), children were divided into A2063G mutation-positive and -negative groups. Mutation-positive children were further classified into pulmonary consolidation and non-consolidation subgroups. Multivariate logistic regression was used to identify independent risk factors for pulmonary consolidation in A2063G mutation-positive MPP children.
A total of 347 children were included in the study. Compared with children without the A2063G mutation, children with the mutation presented older age, higher rates of pre-admission cough and pulmonary consolidation, as well as elevated globulin (GLB), neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), platelet-to-lymphocyte ratio (PLR), pan-immune-inflammation value (PIV) and systemic immune-inflammation index (SII) levels; meanwhile, their lymphocytes (LYM) and albumin (ALB) levels were significantly lower (all P <?0.05). Within children with the A2063G mutation, those with pulmonary consolidation had higher duration of fever, maximum body temperature, length of hospital stay, severe pneumonia rate, and C-reactive protein-to-lymphocyte ratio (CLR), but lower rate of bilateral lung inflammation, ALB, and uric acid (UA) than those without pulmonary consolidation (all P <?0.05). Multivariate logistic regression analysis identified age and ALB as independent risk factors for pulmonary consolidation in A2063G mutation-positive MPP children (OR?=??1.010 and 0.875, respectively; both P <?0.05).
Older age and lower ALB levels are associated with a higher risk of pulmonary consolidation in children with A2063G-mutant MPP, suggesting that an enhanced host inflammatory immune response contributes to the development of pulmonary consolidation.
Introduction:
Mycoplasma pneumoniae pneumonia (MPP) with 23S rRNA A2063G mutation is prone to progressive pulmonary consolidation. This study aimed to explore the clinical characteristics and independent risk factors of pulmonary consolidation among such children.
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