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Published on: March 17, 2014
[Clinical features of protracted bacterial bronchitis in children]
Fanfan Chi1, Yuqing Wang, Chuangli Hao2
1Department of Respiratory Diseases, Children's Hospital of Soochow University, Suzhou 215003, China.
Insights
Protracted bacterial bronchitis (PBB) in children is often characterized by persistent wet cough with wheezing, primarily affecting male infants. Treatment with antibiotics typically leads to a good prognosis.
Area of Science:
- Pediatric Pulmonology
- Infectious Diseases
- Clinical Medicine
Background:
- Protracted bacterial bronchitis (PBB) is a common cause of chronic wet cough in children.
- Understanding the clinical profile of PBB is crucial for timely diagnosis and effective management.
Purpose of the Study:
- To analyze the clinical characteristics of protracted bacterial bronchitis (PBB) in pediatric patients.
- To identify common pathogens and associated conditions in PBB.
Main Methods:
- Retrospective analysis of clinical data from pediatric patients diagnosed with PBB.
- Inclusion criteria included prolonged cough, bronchoscopy findings, and positive bacterial culture or elevated neutrophils in bronchoalveolar lavage fluid (BALF).
Main Results:
- PBB predominantly affected male infants, presenting with persistent wet cough and wheezing.
- Common pathogens identified were Streptococcus pneumoniae and Haemophilus influenzae.
- Airway malacia and immune dysfunction were frequently observed comorbidities.
Conclusions:
- PBB is characterized by persistent wet cough with wheezing, particularly in male infants.
- Streptococcus pneumoniae and Haemophilus influenzae are the primary causative agents.
- PBB often coexists with immune dysfunction and airway malacia, necessitating targeted treatment.
Objective:
To analyze the clinical characteristics of protracted bacterial bronchitis (PBB) in children.
Method:
The clinical data of patients seen from October, 2010 to March, 2014 in Department of Respiratory Diseases of our hospital were retrospectively analyzed. Inclusion criteria were over 4 weeks cough, receiving fiberoptic bronchoscopy, positive bacterial culture and (or) the increased percentage of neutral granulocytes in bronchoalveolar lavage fluid (BALF).
Result:
Twenty eight patients were involved, 26 were male (93%) and two were female (7%). The median age of patients was 8.5 months. The median duration of cough was four weeks. The average length of hospital stay was (8.3 ± 3.9)days. The main clinical feature was wet cough in 28 cases, wet cough with wheezing was seen in 21 cases. The wet cough phase distribution was irregular in 21 cases. The crackles with wheeze (in 21 cases) was main signs of PBB. The percentage of CD3⁻ CD16⁺ 56⁺ cells increased in peripheral blood. The fiberoptic bronchoscopic manifestations of PBB were luminal mucosal edema. Eleven patients also had airway malacia. The neutrophil median in BALF was 0.2. The positive rate of bacterial culture of BALF was 36%. The main bacteria were Streptococcus pneumoniae (50%) and Haemophilus influenzae (30%). The main treatment for PBB patients included amoxycillin/clavulanate potassium and second-generation cephalosporins. The average duration of treatment was (17.3 ± 3.2)days, the prognosis was good.
Conclusion:
PBB is common in male infants. Persistent wet cough with wheezing was the main characteristic of PBB. PBB is commonly accompanied by immune dysfunction and airway malacia, and the pathogens were Streptococcus pneumoniae and Haemophilus influenzae.
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