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Asthma-I: Introduction01:29

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Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
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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...
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Recurrent Wheezing in Infants: A Population-Based Study.

Manon Belhassen1, Jacques De Blic, Laurent Laforest

  • 1From the Merck Sharp & Dohme, Paris (MB, VL, CC-V, LL); HESPER Claude Bernard University, Lyon (MB, LL, MG, EVG); Pediatric Pulmonology, AP-HP, Necker Enfants Malades Hospital, Paris; Paris Descartes University, Paris, France (JDB); Pediatric Medicine, Caen University Hospital, Caen (JB); Pediatric Noninvasive Ventilation and Sleep Unit, Necker University Hospital, Paris (BF); Paris Descartes University, Paris (BF); ESSEC Business School, Paris (GDP); and Respiratory Medicine, Croix Rousse University Hospital, Lyon, France (EVG).

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Summary
This summary is machine-generated.

Recurrent wheezing (RW) is common in infants, affecting 8.2%. Many infants experience inadequate control and high medical resource utilization, highlighting a need for better treatment strategies.

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Area of Science:

  • Pediatrics
  • Respiratory Medicine
  • Health Services Research

Background:

  • Recurrent wheezing (RW) significantly impacts infants, caregivers, and healthcare systems.
  • Limited population-based data exists on the morbidity and medical resource utilization (MRU) associated with infant RW.
  • Understanding the burden of RW is crucial for developing targeted interventions.

Purpose of the Study:

  • To assess the characteristics, medical management, and MRU of infants with RW using national claims data.
  • To identify subgroups of infants with more severe RW and analyze their specific healthcare needs.
  • To provide population-based evidence on the real-world impact of infant RW.

Main Methods:

  • A nationwide, real-life study identified infants aged 6-24 months with RW based on respiratory drug dispensations and control markers.
  • Medical resource utilization was analyzed over 6 months post-index date.
  • Subgroups with severe RW were defined by increased respiratory drug use, oral corticosteroid (OCS) use, or hospitalization for respiratory symptoms.

Main Results:

  • RW affected 8.2% of infants (115,489 total).
  • Inadequate control was prevalent: 61.7% received OCS, 80.2% received antibiotics, and 68.7% received inhaled corticosteroids with low dispensed units, suggesting discontinuous use.
  • Severe RW occurred in 39.0% of the cohort, with 5.5% hospitalized for respiratory symptoms.

Conclusions:

  • Recurrent wheezing is a common condition in infants, characterized by poor disease control and high medical resource utilization.
  • Current treatment strategies appear insufficient, with discontinuous controller therapy use and frequent reliance on rescue medications and antibiotics.
  • There is a critical need for interventions to promote adequate controller therapy use and improve overall medical care for infants with RW.