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Updated: Jul 14, 2026

Normothermic Negative Pressure Ventilation Ex Situ Lung Perfusion: Evaluation of Lung Function and Metabolism
Published on: February 14, 2022
Negative pressure ventilation in pediatric critical care setting.
Akash Deep1, Claudine De Munter, Ajay Desai
1St. Mary's Hospital, London, United Kingdom.
Negative pressure ventilation (NPV) offers a way to minimize complications from positive pressure ventilation. Case studies show NPV improved patient conditions and reduced the need for invasive treatments, though more research is needed for ICU use.
Area of Science:
- Critical Care Medicine
- Respiratory Physiology
Background:
- Invasive ventilation, while life-saving, carries risks of pulmonary and non-pulmonary complications.
- Positive pressure ventilation (PPV) is standard but associated with significant adverse effects.
- Negative pressure ventilation (NPV) is regaining interest as a potentially safer alternative.
Purpose of the Study:
- To review the clinical applications, risks, and limitations of NPV.
- To present case reports of patients managed with NPV.
- To evaluate NPV's effectiveness in improving patient outcomes.
Main Methods:
- Literature review on NPV's clinical uses, risks, and limitations.
- Retrospective analysis of case reports from a single unit.
- Description of patient management using NPV for cardiac, neuromuscular, and respiratory diseases.
Main Results:
- NPV was applied to patients with diverse conditions including cardiac, neuromuscular, and respiratory diseases.
- All described cases showed clinical improvement with NPV use.
- NPV therapy led to a reduced requirement for invasive ventilation.
Conclusions:
- NPV demonstrates potential benefits in managing various patient conditions, reducing the need for invasive interventions.
- Further research and clinical studies are warranted to establish the routine use of NPV in intensive care units (ICUs).
- NPV may offer a valuable alternative to PPV, mitigating associated complications.
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