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Related Concept Videos

Pulmonary Function Tests01:25

Pulmonary Function Tests

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Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
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Respiratory System Abnormal Finding II: Palpation and Auscultation01:31

Respiratory System Abnormal Finding II: Palpation and Auscultation

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In assessing respiratory abnormalities, palpation and auscultation are critical tools for detecting and interpreting various pathophysiological changes. These techniques provide insight into underlying disorders by evaluating tactile sensations and sounds produced by the respiratory system.
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
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Respiratory System Abnormal Finding I: Inspection and Percussion01:30

Respiratory System Abnormal Finding I: Inspection and Percussion

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Respiratory system abnormalities are a significant concern in healthcare due to their potential to indicate underlying severe conditions like Chronic Obstructive Pulmonary Disease (COPD), asthma, and pneumonia. These abnormalities can often be detected through physical examination methods like inspection and percussion.
Inspection Findings
During an inspection, several findings may suggest the presence of respiratory distress or disease. Pursed-lip breathing, where exhalation is slowed by...
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Factors Affecting Pulmonary Ventilation01:19

Factors Affecting Pulmonary Ventilation

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Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
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The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
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Physical Assessment of the Respiratory Tract II: Inspection01:27

Physical Assessment of the Respiratory Tract II: Inspection

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Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
Chest Configuration
The chest configuration...
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Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
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Relationship between computerized wheeze detection and lung function parameters in young infants.

Hendrik Stefan Fischer1, Lia Carlotta Puder1, Silke Wilitzki1

  • 1Department of Neonatology, Charité University Medical Center, Berlin, Germany.

Pediatric Pulmonology
|September 12, 2015
PubMed
Summary
This summary is machine-generated.

Computerized respiratory sound analysis (CORSA) detects wheeze in infants, indicating impaired lung function. This technology may aid in monitoring high-risk infants and identifying subclinical airway obstruction.

Keywords:
auscultationcomputerized wheeze detectioninfantlung functionlung soundphonopneumographywheezing

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Area of Science:

  • Pediatric Pulmonology
  • Respiratory Physiology
  • Medical Technology

Background:

  • Computerized respiratory sound analysis (CORSA) is validated for infant wheeze assessment.
  • The association between automatically detected wheeze and infant lung function remains unclear.
  • Early identification of respiratory issues in infants is crucial for timely intervention.

Purpose of the Study:

  • To investigate the relationship between wheeze detection by CORSA and conventional lung function testing (LFT) parameters in infants.
  • To determine if automatically detected wheeze correlates with objective measures of lung function.
  • To assess the potential of CORSA in identifying subclinical airway obstruction in neonates and young infants.

Main Methods:

  • 110 infants recovering from neonatal intensive care underwent CORSA using the PulmoTrack® monitor.
  • Conventional LFT included tidal breathing, occlusion tests, body plethysmography, forced expiratory flow, SF6 multiple breath washout (MBW), and blood gas analysis.
  • Infants were classified as wheezers or non-wheezers based on predefined CORSA wheeze duration cut-off values.

Main Results:

  • Wheezing was detected in 65% of infants; 39% had inspiratory and 48% had expiratory wheezing.
  • Increased airway resistance was observed in both inspiratory and expiratory wheezers, correlating with expiratory wheeze duration.
  • Expiratory wheezers exhibited significantly increased respiratory resistance, time constant, and functional residual capacity via SF6 MBW.

Conclusions:

  • CORSA effectively identifies wheeze in infants, which is associated with impaired lung function.
  • The findings suggest CORSA can detect subclinical airway obstruction in neonates and young infants.
  • CORSA may be a valuable tool for monitoring high-risk infants and managing respiratory conditions.