A case of bronchiolitis obliterans in a young child

Vaibhav Keskar1, Milind S Tullu, Sandeep B Bavdekar

  • 1Department of Pediatrics, Seth G.S. Medical College and KEM Hospital, Mumbai, India.

Insights

Bronchiolitis obliterans (BO), a rare obstructive lung disease, can develop in children after severe respiratory infections. This case highlights a potential link between prolonged mechanical ventilation and BO development, with positive response to corticosteroids.

Area of Science:

  • Pulmonology
  • Pediatric Respiratory Medicine
  • Critical Care

Background:

  • Bronchiolitis obliterans (BO) is a rare obstructive lung disease affecting small airways.
  • It often follows severe lower respiratory tract infections, particularly in children.
  • The role of mechanical ventilation in BO etiology is not well-established.

Observation:

  • A three-year-old child developed BO after a severe lower respiratory tract infection.
  • The child required prolonged mechanical ventilation and developed ventilator-associated pneumonia.
  • The patient presented with classic symptoms of dyspnea, chronic cough, sputum production, and wheezing.

Findings:

  • Computed tomographic (CT) scans aided in diagnosis, complementing histopathology.
  • The case suggests a potential association between prolonged mechanical ventilation and BO in pediatric patients.
  • The child showed a positive clinical response to corticosteroid treatment.

Implications:

  • This case underscores the importance of considering mechanical ventilation as a potential contributing factor in pediatric BO.
  • Early diagnosis and management, including prompt corticosteroid therapy, may improve outcomes.
  • Further research is warranted to elucidate the etiological role of mechanical ventilation in BO.

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...
Pulmonary Cycle: Exhalation01:17

Pulmonary Cycle: Exhalation

In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...
Respiratory Syncytial Virus Disease01:29

Respiratory Syncytial Virus Disease

Human respiratory syncytial virus (RSV) is a widespread pathogen that primarily targets infants and young children but also poses a serious health risk to elderly and immunocompromised individuals. Belonging to the Pneumoviridae family, RSV is a negative-sense, single-stranded RNA virus within the Pneumovirus genus. Its global health burden is significant, with millions of cases annually resulting in hospitalizations and mortality, particularly in resource-limited settings. Although most...
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...
The Bronchial Tree01:23

The Bronchial Tree

The human bronchi and bronchial tree play a crucial role in the respiratory system, facilitating the exchange of oxygen and carbon dioxide. Let's delve into the intricate structure and functions of these respiratory components.
The trachea, commonly known as the windpipe, is a tube that connects the larynx (voice box) to the bronchi. At a point called the carina, it bifurcates into two primary bronchi. The right primary bronchus is wider, shorter, and more vertical than the left primary...
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