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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...
Pulmonary Embolism III: Nursing Management01:27

Pulmonary Embolism III: Nursing Management

A pulmonary embolism occurs when a thrombus, amniotic fluid, tumor tissue, fat, or air embolus blocks one or more pulmonary arteries. Effective nursing management and patient education are crucial for improving outcomes and preventing recurrence.Nursing management starts with obtaining a comprehensive patient history, particularly noting any history of deep vein thrombosis (DVT). Assess for clinical manifestations, including dyspnea, chest pain, crackles, heart murmurs, and signs of right-sided...
Pneumothorax II: Pathophysiology01:08

Pneumothorax II: Pathophysiology

Pneumothorax means the presence of air in the pleural space — the thin potential gap between the visceral and parietal pleura. This condition disrupts the normal pressure balance that keeps the lungs inflated, leading to partial or complete collapse of the affected lung.Normal physiologyUnder normal conditions, the pleural space maintains a slightly negative intrapleural pressure, which keeps the lungs expanded against the chest wall. This negative pressure creates a delicate balance between...
Pneumonia III: Complications and Assessment01:30

Pneumonia III: Complications and Assessment

Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following:
Pulmonary Embolism I: Introduction01:29

Pulmonary Embolism I: Introduction

Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...
Pulmonary Embolism I: Introduction01:19

Pulmonary Embolism I: Introduction

A blood clot, or thrombus, is a semi-solid mass composed of fibrin, platelets, and red blood cells. When it forms within a vessel, it can obstruct blood flow, known as thrombosis. If part of the clot detaches, it becomes an embolus that can travel and block distant vessels. When this occurs in the pulmonary arteries, it causes a condition known as pulmonary embolism (PE).Origin and ImpactMost often, the embolus originates from a thrombus in the deep veins of the lower limbs, a condition called...

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Related Experiment Video

Updated: Jul 19, 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

[Negative pressure pulmonary edema: 3 case reports].

J R Ortíz-Gómez1, I Paja Martí, F Sos-Ortigosa

  • 1Servicio de Anestesiología, Reanimación y Cuidados Intensivos, Hospital García Orcoyen, Estella. jortizgo@cfnavarra.es

Anales Del Sistema Sanitario De Navarra
|September 27, 2006
PubMed
Summary

Negative pressure pulmonary edema, a complication from airway obstruction, arises from excessive negative intrathoracic pressure. Prompt diagnosis and treatment with oxygen and ventilation are crucial for managing this condition.

Related Experiment Videos

Last Updated: Jul 19, 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:

  • Pulmonology
  • Critical Care Medicine

Background:

  • Negative pressure pulmonary edema (NPPE) is a recognized complication linked to upper airway obstruction.
  • It arises from excessive negative intrathoracic pressure during forced inspiration against a closed glottis.

Observation:

  • This mechanism elevates arteriolar and capillary pressures, promoting fluid transudation into the alveolar space.
  • NPPE can manifest acutely within minutes or be delayed for hours after airway obstruction.

Findings:

  • Clinical presentations of NPPE can be severe but typically respond to supplemental oxygen, positive pressure ventilation, and diuretics.
  • Diagnostic vigilance is essential for timely and effective intervention.

Implications:

  • Understanding NPPE's pathophysiology aids in prompt recognition and management.
  • Early treatment improves patient outcomes for this potentially serious complication.