[Clinical characteristics of bronchiolitis obliterans in pediatric patients]

De-hui Chen1, Yu-neng Lin, Shu-ling Lan

  • 1Department of Pediatrics, the First Affiliated Hospital of Guangzhou Medical College, Guangzhou 510120, China.

Insights

Respiratory infections are a key factor in pediatric bronchiolitis obliterans (BO). Persistent wheezing and cough are common, but high-resolution CT (HRCT) and ANCA testing aid diagnosis, with corticosteroids offering symptom relief.

Area of Science:

  • Pediatric Pulmonology
  • Infectious Diseases
  • Radiology

Context:

  • Bronchiolitis obliterans (BO) is a serious post-infectious airway disease in children.
  • Understanding its clinical spectrum and diagnostic markers is crucial for timely intervention.

Purpose:

  • To analyze the clinical characteristics, imaging findings, laboratory results, treatment strategies, and outcomes of pediatric patients diagnosed with BO.
  • To identify key diagnostic indicators and effective therapeutic approaches for pediatric BO.

Summary:

  • This study analyzed 26 pediatric BO cases, noting persistent wheezing, cough, and exercise intolerance as primary symptoms.
  • Etiologies included Mycoplasma and viral infections. High-resolution CT (HRCT) revealed the 'Westemark sign,' and ANCA positivity was observed in approximately 50% of patients.
  • Treatment with oral corticosteroids and azithromycin showed efficacy in reducing symptom severity.

Impact:

  • Highlights the role of respiratory infections in pediatric BO.
  • Emphasizes HRCT and ANCA testing as valuable diagnostic tools.
  • Suggests corticosteroid therapy can alleviate clinical symptoms in pediatric BO.
Abstract

Related Concept Videos

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations01:19

Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations

Chronic Obstructive Pulmonary Disease, or COPD, is a long-term condition marked by persistent and only partially reversible airflow limitation. It involves two overlapping conditions—chronic bronchitis and emphysema—which often co-appear but differ in dominant symptoms and underlying mechanisms.Chronic Bronchitis FeaturesChronic bronchitis presents with a persistent productive cough and thick, sometimes purulent mucus due to airway inflammation, enlarged mucus glands, and goblet cell...
COPD: Pathogenesis and Clinical Features01:20

COPD: Pathogenesis and Clinical Features

Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
Asthma III: Clinical Manifestations01:13

Asthma III: Clinical Manifestations

Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...
Chronic Obstructive Pulmonary Disease I: Introduction01:23

Chronic Obstructive Pulmonary Disease I: Introduction

Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...
Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation