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Related Concept Videos

Breathing01:05

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...
Mechanical Ventilation II: Invasive Ventilation01:23

Mechanical Ventilation II: Invasive Ventilation

Ventilators are essential medical equipment used to aid patients with respiratory difficulties. Their primary function is to assist or replace spontaneous breathing by providing mechanical ventilation. There are two general classes of mechanical ventilators: negative-pressure and positive-pressure ventilators.
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...
Mechanical Ventilation I: Indication and Settings01:29

Mechanical Ventilation I: Indication and Settings

Mechanical ventilation is a life-saving technique for managing acute respiratory failure and other respiratory complications. The process involves using a machine known as a ventilator to supply oxygen to the lungs and assist in removing carbon dioxide. It serves as a bridge to long-term mechanical ventilation or a temporary measure until ventilatory support is discontinued. The ventilator can maintain this function for a prolonged period, providing critical support for patients until they can...
Ventilatory Modes01:14

Ventilatory Modes

Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
Mechanical Ventilation III: Noninvasive Ventilation01:23

Mechanical Ventilation III: Noninvasive Ventilation

Noninvasive positive-pressure ventilation (NIPPV), continuous positive airway pressure (CPAP), and bilevel positive airway pressure (BiPAP) are essential methods in respiratory care. These ventilation techniques offer unique benefits for patients with various respiratory conditions, providing adequate support without requiring intubation. Let's explore how each method is crucial in improving patient outcomes and enhancing respiratory therapy.
Noninvasive Positive-Pressure Ventilation (NIPPV)
Factors Affecting Pulmonary Ventilation01:19

Factors Affecting Pulmonary Ventilation

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.
Alveolar Surface Tension
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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Related Experiment Video

Updated: May 18, 2026

Surfactant Depletion Combined with Injurious Ventilation Results in a Reproducible Model of the Acute Respiratory Distress Syndrome (ARDS)
06:22

Surfactant Depletion Combined with Injurious Ventilation Results in a Reproducible Model of the Acute Respiratory Distress Syndrome (ARDS)

Published on: April 7, 2021

Surfactant and mechanical ventilation.

Gianluca Lista1, Francesca Castoldi, Silvia Bianchi

  • 1Division of Neonatology, NICU - "V. Buzzi" Children's Hospital - ICP, Milan, Italy. g.lista@icp.mi.it

Acta Bio-Medica : Atenei Parmensis
|October 4, 2012
PubMed
Summary

Mechanical ventilation and surfactant replacement are standard for preterm infants with respiratory distress syndrome (RDS). Lung recruitment maneuvers improve surfactant distribution and lung volume during mechanical ventilation.

Related Experiment Videos

Last Updated: May 18, 2026

Surfactant Depletion Combined with Injurious Ventilation Results in a Reproducible Model of the Acute Respiratory Distress Syndrome (ARDS)
06:22

Surfactant Depletion Combined with Injurious Ventilation Results in a Reproducible Model of the Acute Respiratory Distress Syndrome (ARDS)

Published on: April 7, 2021

Area of Science:

  • Neonatal Medicine
  • Respiratory Physiology
  • Pediatric Critical Care

Background:

  • Non-invasive respiratory support is common for respiratory failure.
  • Mechanical ventilation and surfactant replacement are standard for preterm infants with respiratory distress syndrome (RDS).
  • The interplay between surfactant and ventilatory support impacts respiratory outcomes.

Purpose of the Study:

  • To investigate the optimization of surfactant replacement during mechanical ventilation.
  • To evaluate the role of lung recruitment maneuvers in enhancing surfactant efficacy.

Main Methods:

  • Mechanical ventilation in preterm infants with RDS.
  • Tracheal instillation of exogenous surfactant.
  • Lung recruitment maneuvers performed before and after surfactant instillation.

Main Results:

  • Lung recruitment maneuvers appear to facilitate surfactant distribution.
  • These maneuvers may lead to more homogeneous lung volumes.
  • Optimized surfactant delivery can improve therapeutic success.

Conclusions:

  • Lung recruitment maneuvers are beneficial for surfactant administration in mechanically ventilated preterm infants.
  • Proper surfactant distribution is key to successful RDS management.
  • Further research into optimizing ventilatory strategies alongside surfactant therapy is warranted.