Related Experiment Video
Updated: Aug 7, 2026

06:15
Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus
Published on: March 6, 2019
[Newborn emphysema attributed to medical actions (3 case report)]
1Center of Forebsic Science, Zhejiang University, Hangzhou 300016, China.
Fa Yi Xue Za Zhi
|July 21, 2006
Summary
Newborn emphysema, including parenchymatous, interstitial, and bullous types, can arise from interstitial air accumulation. High-pressure oxygen during first-aid is a potential cause.
Area of Science:
- Neonatal respiratory conditions
- Pulmonary pathology
- Pediatric critical care
Background:
- Emphysema in newborns is rare and presents diagnostic challenges.
- Understanding the pathogenesis of neonatal emphysema is crucial for timely intervention.
Observation:
- Three cases of neonatal emphysema encompassing parenchymatous, interstitial, and bullous forms were documented.
- One case demonstrated significant interstitial air accumulation, tracking into the mediastinum and subcutaneous tissues.
Findings:
- Air accumulation in lung septa can lead to widespread dissemination.
- The pathway involves lung interstitium, mediastinum, and extensive subcutaneous emphysema.
- High-pressure oxygen administration during neonatal resuscitation is implicated as a causative factor.
Implications:
- This highlights the importance of careful oxygen delivery techniques in neonates.
- Early recognition and management of neonatal emphysema are critical for patient outcomes.
- Further research into the biomechanics of air leak in neonates is warranted.
Related Concept Videos
Chronic Obstructive Pulmonary Disease II: Emphysema
Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.
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: 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...
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...
Asthma III: Clinical Manifestations
Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...
Pneumonia III: Complications and Assessment
Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following: