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Related Concept Videos

Pulmonary Edema II: Pathophysiology01:18

Pulmonary Edema II: Pathophysiology

Pulmonary edema is the accumulation of fluid in the interstitial and alveolar spaces of the lungs, impairing gas exchange and oxygen delivery. It may be cardiogenic or noncardiogenic, but both reduce oxygenation and lung compliance.Cardiogenic Pulmonary EdemaCardiogenic edema results from increased hydrostatic pressure in pulmonary capillaries, usually due to left ventricular dysfunction from myocardial infarction, heart failure, or valvular disease. Ineffective cardiac pumping causes blood to...
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...
Chronic Obstructive Pulmonary Disease II: Emphysema01:23

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.
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...
Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.01:25

Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.

Understanding the variety of primary symptoms and systemic complications that characterize chronic obstructive pulmonary disease (COPD) is crucial for healthcare professionals.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation

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Related Experiment Video

Updated: Jun 8, 2026

Point-of-Care Lung Ultrasound in Adults: Image Acquisition
09:17

Point-of-Care Lung Ultrasound in Adults: Image Acquisition

Published on: March 3, 2023

Croup-induced postobstructive pulmonary edema.

I-Chen Chen1, Ko-Hsin Chen, Chien-Ming Tseng

  • 1Division of Pediatric Cardiology and Pulmonology, Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.

The Kaohsiung Journal of Medical Sciences
|October 19, 2010
PubMed
Summary
This summary is machine-generated.

Postobstructive pulmonary edema is a rare but serious complication of upper airway obstruction. This case highlights that croup, often considered benign, can lead to this life-threatening condition.

Related Experiment Videos

Last Updated: Jun 8, 2026

Point-of-Care Lung Ultrasound in Adults: Image Acquisition
09:17

Point-of-Care Lung Ultrasound in Adults: Image Acquisition

Published on: March 3, 2023

Area of Science:

  • Pediatric Pulmonology
  • Critical Care Medicine

Background:

  • Postobstructive pulmonary edema (POPE) is a rare, life-threatening condition.
  • It arises from sudden upper airway obstruction.
  • Croup is typically a benign childhood illness.

Observation:

  • A 5-year-old boy with recurrent croup presented with symptoms suggestive of POPE.
  • The patient's clinical course and diagnosis were carefully monitored.
  • This case underscores the potential severity of croup.

Findings:

  • The patient was diagnosed with postobstructive pulmonary edema secondary to croup.
  • This highlights that croup can precipitate POPE.
  • Early recognition is crucial for timely intervention.

Implications:

  • Pediatricians should consider POPE in children with severe or recurrent croup.
  • This condition is often misdiagnosed, necessitating increased awareness.
  • Prompt diagnosis and management of POPE are vital for patient outcomes.