Bronchiolitis in infants

H B Panitch1

  • 1University of Pennsylvania School of Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA. panitch@email.chop.edu

Insights

Bronchiolitis, a common infant wheezing illness caused by Respiratory Syncytial Virus (RSV), lacks proven treatments beyond supportive care. Research aims to find effective, safe methods to manage acute symptoms and prevent long-term airway issues.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Pulmonology

Background:

  • Bronchiolitis is a frequent cause of infant wheezing, predominantly caused by Respiratory Syncytial Virus (RSV).
  • RSV infections lead to over 125,000 US hospitalizations annually.
  • Current treatment for infant bronchiolitis beyond supportive care is controversial due to limited evidence of pharmacologic agent efficacy.

Purpose of the Study:

  • To investigate the safest and most cost-effective treatments for infant bronchiolitis.
  • To address both acute obstructive symptoms and the prevention of recurrent airway obstruction.
  • To explore novel therapeutic strategies based on understanding RSV pathogenesis and virus-host interactions.

Main Methods:

  • The abstract does not specify the methods used in the study.
  • Focus is on the ongoing search for effective treatments and understanding disease mechanisms.
  • Literature review and clinical practice observations are implied.

Main Results:

  • The abstract does not present specific results.
  • Highlights the controversy surrounding current treatment modalities.
  • Emphasizes the need for evidence-based interventions.

Conclusions:

  • Effective treatments for infant bronchiolitis are still under investigation.
  • Understanding RSV pathogenesis may lead to future therapies.
  • Preventing recurrent wheezing and asthma post-bronchiolitis is a key research goal.

Related Concept Videos

Breathing01:05

Breathing

The process of breathing, inhaling and exhaling, involves the coordinated movement of the chest wall, the lungs, and the muscles that move them. Two muscle groups with important roles in breathing are the diaphragm, located directly below the lungs, and the intercostal muscles, which lie between the ribs. When the diaphragm contracts, it moves downward, increasing the volume of the thoracic cavity and creating more room for the lungs to expand. When the intercostal muscles contract, the ribs...
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...
Pneumonia I: Introduction01:30

Pneumonia I: Introduction

Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
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 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...
Pneumonia I: Introduction01:29

Pneumonia I: Introduction

Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...