Overview
One-lung ventilation is a mechanical ventilation method frequently used during several thoracic surgeries. One-lung ventilation requires the use of protective ventilation to limit ventilator-induced injury and reduce postoperative respiratory complications. Protective ventilation during one-lung ventilation is specific since tidal volumes are applied by definition to one lung, and it is recommended to use lower tidal volumes, down to 4 ml/kg of ideal body weight. This approach requires individualized ventilation parameters, which differs from the conventional or two-lung ventilation, and there are no clear recommendations regarding respiratory rate adjustment to ensure adequate gas exchange.
Description
The aim of the study is to:
- Evaluate whether the initial ventilation settings (tidal volume and respiratory rate) during one-lung ventilation are appropriate to prevent respiratory acidosis.
- Compare the ventilation settings (tidal volume and respiratory rate) made by clinicians with those proposed by an smartphone application ''VentilO''.
Eligibility
Inclusion Criteria:
- Adults (≥ 18 years old)
- Patients intubated and undergoing one-lung ventilation during thoracic surgery
- Volume-controlled ventilation mode used intraoperatively
Exclusion Criteria:
- Arterial blood gas data unavailable during one-lung ventilation
- Missing demographic data (sex, height, actual weight)