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Bronchiolitis.

Brian T Garibaldi1, Peter Illei, Sonye K Danoff

  • 1Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, 5501 Hopkins Bayview Circle, Baltimore, MD 21224, USA.

Immunology and Allergy Clinics of North America
|October 30, 2012
PubMed
Summary
This summary is machine-generated.

Bronchiolitis causes irreversible airflow obstruction and is often misdiagnosed. Understanding its causes, especially in transplant patients, is crucial for better treatment strategies.

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Area of Science:

  • Pulmonary Medicine
  • Pathogenesis of Airway Diseases

Background:

  • Bronchiolitis is a small airway disease characterized by progressive, irreversible airflow obstruction.
  • It has diverse etiologies including infection, toxic exposure, autoimmune conditions, and post-transplant complications.
  • Symptoms like cough and sputum mimic COPD or asthma, delaying diagnosis and treatment.

Purpose of the Study:

  • To elucidate the pathogenesis of bronchiolitis.
  • To highlight the significance of transplant-associated bronchiolitis in adults.
  • To differentiate bronchiolitis from other obstructive airway diseases.

Main Methods:

  • Review of clinical presentations and etiologies of bronchiolitis.
  • Analysis of common causes in adult populations, focusing on post-transplant cases.
  • Comparison of symptoms with chronic obstructive pulmonary disease and asthma.

Main Results:

  • Bronchiolitis leads to progressive airflow limitation.
  • Common causes include infection, toxins, autoimmune diseases, and transplantation.
  • Post-lung and stem cell transplant bronchiolitis are prevalent in adults.
  • Many forms of bronchiolitis are refractory to treatment.

Conclusions:

  • Bronchiolitis is a serious condition with potentially irreversible airflow obstruction.
  • Accurate diagnosis is often delayed due to symptom overlap with COPD and asthma.
  • Adult transplant recipients frequently develop bronchiolitis, offering key insights into disease mechanisms.