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Single-lung ventilation and oxidative stress: a different perspective on a common practice
1aDepartment of Anesthesiology, Yale Medical School, New Haven, Connecticut bDepartment of Anesthesiology, Physiology, and Biomedical Engineering, Medical College of Wisconsin cMarquette University, Milwaukee, Wisconsin, USA.
Single-lung ventilation (SLV) causes lung collapse and hypoxia, leading to oxidative stress. This stress, from SLV and lung re-expansion, can impact organ function post-surgery.
Area of Science:
- Anesthesiology
- Pulmonary Medicine
- Critical Care
Background:
- Single-lung ventilation (SLV) is crucial for thoracic surgery but can induce lung injury.
- Progressive atelectasis during SLV leads to local tissue hypoxia.
Purpose of the Study:
- To review the link between SLV, oxidative stress, and organ dysfunction after surgery.
- To understand the mechanisms of SLV-induced organ injury.
Main Methods:
- Literature review of experimental and clinical studies.
- Analysis of data on SLV duration and its effects on oxidative stress.
Main Results:
- SLV causes atelectasis, hypoxia, and generates reactive oxygen and nitrogen species.
- Lung re-expansion amplifies oxidative stress, similar to reperfusion injury.
- Oxidative stress magnitude correlates with SLV duration and affects multiple organs.
Conclusions:
- SLV and lung re-expansion generate reactive oxygen and nitrogen species.
- These species may contribute to systemic effects and organ dysfunction post-surgery.
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