Oxygen therapy – This involves delivering continuous oxygen flow to the non-ventilated lung during surgery. Oxygen therapy helps maintain proper oxygenation of lung tissue when only one lung is being mechanically ventilated during chest surgery.

Positive Airway Pressure – This therapy involves applying gentle air pressure to keep the airways open while delivering oxygen to the non-ventilated lung during surgery. It helps maintain better oxygen levels and prevents the collapse of air passages in the lung that is not being mechanically ventilated.

Both therapies are used during one-lung ventilation, which is a special breathing technique used during lung surgery where one lung is temporarily not ventilated to allow surgeons better access to perform the operation.

Post-operative Pulmonary Complications – A group of respiratory problems that can develop after surgery, particularly following lung resection procedures. These complications involve changes in lung function and can include temporary breathing difficulties, decreased oxygen levels, and accumulation of fluid in lung tissues. The condition typically develops within the first few days after surgery and may be influenced by factors such as the type of surgical procedure and pre-existing lung function.

Oxidative Stress in Lung Surgery – A condition occurring during lung operations where there is an imbalance between oxidants and antioxidants in lung tissue. This process involves the production of reactive oxygen species that can affect lung cells during surgery. The condition develops when one lung is not ventilated during surgery, which can lead to inflammation and temporary changes in lung tissue.

Acid-Base Imbalance – A condition where the body’s pH levels become disrupted during and after lung surgery. This occurs when there are changes in the blood’s oxygen and carbon dioxide levels due to one-lung ventilation. The body typically works to maintain proper pH balance through various compensatory mechanisms.