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Related Concept Videos

Pulmonary Cycle: Exhalation01:17

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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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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...
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Physical Assessment of the Respiratory Tract IV: Auscultation01:28

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Auscultation is a crucial component of the physical assessment of the respiratory tract. It offers valuable insights into airflow through the bronchial tree and potential lung obstructions. This process involves careful listening to breath, voice, and adventitious sounds, which can reveal a wealth of information about a patient's respiratory health.
Breath Sounds
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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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Asthma, a common chronic respiratory condition, is classified considering the frequency and severity of symptoms alongside lung function impairment. Understanding this classification is essential for appropriate treatment and management. Here's a detailed look at the classification of asthma and its clinical features and complications:
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Related Experiment Video

Updated: Dec 23, 2025

Author Spotlight: Efficacy of Auricular Pressure Bean Therapy in Reducing Wheezing Symptoms
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Author Spotlight: Efficacy of Auricular Pressure Bean Therapy in Reducing Wheezing Symptoms

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The wheezing infant.

Michael Silverman1

  • 1is Professor in Child Health at the University of Leicester, UK. His interests are asthma and other lung diseases in children.

Medicine (Abingdon, England : UK Ed.)
|April 28, 2020
PubMed
Summary
This summary is machine-generated.

Wheezing is a common infant symptom, not a diagnosis, affecting up to 30% of children. While most cases are episodic or viral, serious underlying conditions like cystic fibrosis are rare, impacting only 2-3% of the population.

Keywords:
infantwheezing

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Area of Science:

  • Pediatrics
  • Respiratory Medicine
  • Epidemiology

Background:

  • Wheezing is a prevalent symptom in infancy, with 20-30% of children experiencing recurrent episodes by 12 months.
  • It stems from airway narrowing, either peripheral or central, and is often linked to viral infections or asthma-like symptoms.
  • While specific causes like cystic fibrosis are rare (2-3%), the overall prevalence of wheezing has genuinely increased in industrialized nations.

Purpose of the Study:

  • To differentiate wheezing as a symptom from specific diagnoses.
  • To highlight the prevalence of various wheezing causes in children.
  • To discuss the increasing trend of wheezing and its impact on healthcare.

Main Methods:

  • Review of existing literature and epidemiological data on childhood wheezing.
  • Analysis of the differential causes of wheezing, distinguishing common from rare conditions.
  • Examination of trends in wheezing prevalence and hospital admissions.

Main Results:

  • Wheezing affects a significant portion of infants (20-30%), but specific diagnoses are uncommon (2-3%).
  • Viral-induced wheezing and asthma-like symptoms are the most frequent presentations.
  • A genuine increase in wheezing prevalence and hospital admissions has been observed, particularly during respiratory syncytial virus (RSV) epidemics.

Conclusions:

  • Wheezing requires careful evaluation to distinguish benign, episodic conditions from serious underlying diseases.
  • The rising incidence of wheezing necessitates continued research and public health attention.
  • Understanding the diverse causes of wheezing is crucial for effective diagnosis and management in pediatric populations.