Relationship between bronchoalveolar lavage mycoplasma load and clinical characteristics in children with Mycoplasma pneumoniae pneumonia

OBJECTIVE: Mycoplasma pneumoniae (MP) is an important pathogen for community-acquired pneumonia in children. MP infection was considered to be self-limited, but many severe refractory MP pneumonia cases have been reported in recent years. The reason for variation in severity of MP pneumonia remains...

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Veröffentlicht in:Zhonghua er ke za zhi = Chinese journal of pediatrics. - 1960. - 51(2013), 10 vom: 09. Okt., Seite 736-40
1. Verfasser: Cheng, Yun-gai (VerfasserIn)
Weitere Verfasser: Li, Shu-xian, Li, Xue-jing, Chen, Ying, Chen, Zhi-min
Format: Aufsatz
Sprache:Chinese
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:Zhonghua er ke za zhi = Chinese journal of pediatrics
Schlagworte:English Abstract Journal Article Research Support, Non-U.S. Gov't DNA, Bacterial
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245 1 0 |a Relationship between bronchoalveolar lavage mycoplasma load and clinical characteristics in children with Mycoplasma pneumoniae pneumonia 
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520 |a OBJECTIVE: Mycoplasma pneumoniae (MP) is an important pathogen for community-acquired pneumonia in children. MP infection was considered to be self-limited, but many severe refractory MP pneumonia cases have been reported in recent years. The reason for variation in severity of MP pneumonia remains unclear. MP virulence including drug-resistance and host immunologic function are important influencing factors. The present study aimed to clarify relationship between local MP load and severity of MP pneumonia 
520 |a METHOD: MP DNA was quantitatively detected by fluorescent real-time PCR in bronchoalveolar lavage fluid (BALF) from 77 children with MP pneumonia. They were classified into groups of low MP load ( < 10(3)/ml, n = 14) , moderate MP load (10(3)-10(6)/ml, n = 22) and high MP load ( > 10(6)/ml, n = 41) . Clinical symptoms, main laboratory and imaging results of children among the three groups were compared 
520 |a RESULT: When compared with low load group and moderate load group, high load group had longer fever duration (7 d, 10 d vs. 12 d) , longer time to normalization of temperature with macrolide administration (4 d, 8 d vs. 10 d) , more patients with high fever (50.0%, 68.2% vs. 87.8%) and longer duration of fever than 10 d (35.7%, 50.0% vs. 73.2%).Statistically significant difference existed in CRP among the three groups (1.0 mg/L, 11.5 mg/L, 34 mg/L). Large field of consolidation or atelectasis were found in 58.5% of high load patients, much higher than 22.7% in moderate load and 14.3% in low load patients. Bilateral or massive pleural effusion was not found in low load group, while in moderate load and high load group, they were 13.6% and 24.4%. However, no significant difference was found in symptoms and main laboratory and imaging results among different age groups in high load patients 
520 |a CONCLUSION: There is a close relationship between MP load in BALF and clinical characteristics in children with MP pneumonia. Those with high MP load have a more severe process 
650 4 |a English Abstract 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 7 |a DNA, Bacterial  |2 NLM 
700 1 |a Li, Shu-xian  |e verfasserin  |4 aut 
700 1 |a Li, Xue-jing  |e verfasserin  |4 aut 
700 1 |a Chen, Ying  |e verfasserin  |4 aut 
700 1 |a Chen, Zhi-min  |e verfasserin  |4 aut 
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