Physiology of One Lung Ventilation and Hypoxemia
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During one lung ventilation (OLV), blood flow is shunted to the non-ventilated lung causing hypoxemia. Anesthetics mildly inhibit hypoxic pulmonary vasoconstriction (HPV), increasing shunt by around 4%. Positioning and techniques like selective lung ventilation and PEEP can optimize ventilation and perfusion matching to minimize hypoxemia during OLV.
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Physiology of One Lung Ventilation and Hypoxemia
- 1. Physiological Aspects of Hypoxemia During One Lung Ventilation Stanford T. Prescott, MD Staff Anesthesiologist Brooke Army Medical Center
- 3. Normal Distribution of Perfusion in the Lungs
- 6. Normal Distribution of Ventilation in the Lungs
- 7. Normal Distribution of Ventilation in the Lungs
- 14. Oxygen Transport and Causes of Hypoxemia
- 20. Physiology of One Lung Ventilation in the Lateral Decubitus Position
- 22. Physiology of One Lung Ventilation and the Lateral Decubitus Position
- 28. Physiology of the Lateral Decubitus Position
- 29. Physiology of the Lateral Decubitus Position
- 30. Physiology of the Lateral Decubitus Position