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Related Concept Videos

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...
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)
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...
Pulmonary Ventilation: Inhalation01:24

Pulmonary Ventilation: Inhalation

Pulmonary ventilation is a vital process that ensures the exchange of oxygen and carbon dioxide in the lungs. It refers to the movement of air into and out of the lungs, enabling the body to obtain oxygen and remove waste carbon dioxide. In this article, we will explore the intricacies of pulmonary ventilation, including its underlying principles, mechanisms, and the interplay of pressures within the respiratory system.
Boyle's law becomes particularly pertinent when examining respiratory...
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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Inspiratory Muscle Training as an Adjunct to the Treatment of Weaning Failure in Critically Ill Patients: A Practical Guide
04:16

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Mechanical Power and Energy in Invasively Ventilated Newborn Infants.

Sofia De La Rubia1, Barbara Loi1, Laura Vivalda1

  • 1Division of Pediatrics and Neonatal Critical Care, "A. Béclère" Medical Centre, Paris Saclay University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France.

Anesthesiology
|May 8, 2026
PubMed
Summary

Mechanical power and energy are elevated in neonates with respiratory disorders, correlating with poorer oxygenation and lung aeration. This study provides crucial data on mechanical power in neonatal respiratory failure.

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08:22

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Published on: September 19, 2025

Area of Science:

  • Neonatal Medicine
  • Respiratory Physiology
  • Mechanical Ventilation

Background:

  • Mechanical power quantifies energy delivered to ventilated lungs, but data in neonates are lacking.
  • Understanding mechanical power is crucial for optimizing ventilation strategies in vulnerable infant populations.

Purpose of the Study:

  • To describe mechanical power in neonates under real-world conditions.
  • To investigate the relationship between mechanical power and clinical variables in neonates with respiratory disorders.

Main Methods:

  • A cross-sectional study included neonates with respiratory distress syndrome (RDS), neonatal acute respiratory distress syndrome (ARDS), evolving broncho-pulmonary dysplasia (BPD), and controls.
  • Ventilation, oxygenation, and ultrasound-assessed lung aeration data were collected.
  • Mechanical power was calculated using four distinct equations.

Main Results:

  • 100 neonates were studied, with higher median power and energy in those with respiratory failure compared to controls (p <0.001).
  • Power components from dynamic and static strain were also significantly higher in respiratory failure groups.
  • Mechanical power correlated with oxygenation and lung aeration impairment (p <0.05).

Conclusions:

  • Mechanical power, its components, and energy are significantly increased in neonates with respiratory disorders.
  • Elevated mechanical power is associated with impaired oxygenation and lung aeration in this population.