Summary:
In morbidly obese patients undergoing laparoscopic bariatric surgery, driving pressure-guided ventilation significantly improved oxygenation, enhanced lung mechanics, and reduced intraoperative and postoperative hypoxemia compared to conventional lung-protective ventilation using fixed PEEP of 5 cmH₂O, though it was associated with no major adverse effects reported.
| PICO | Description |
|---|---|
| Population | Adults with a body mass index (BMI) of 40–50 kg/m² undergoing elective laparoscopic bariatric surgery under general anesthesia. |
| Intervention | Driving pressure-guided ventilation during surgery, with individualized PEEP titrated to achieve the lowest driving pressure following a lung recruitment maneuver. |
| Comparison | Conventional lung-protective ventilation using a fixed PEEP of 5 cmH₂O throughout surgery after the same standardized recruitment maneuver. |
| Outcome | The driving pressure group demonstrated significantly better PaO₂/FiO₂ ratios before extubation and postoperatively (P < 0.001), improved lung compliance, reduced plateau and driving pressures, fewer episodes of intraoperative hypoxia (6.7% vs 33.3%), and no cases of postoperative hypoxia, compared to the control group. |
Source: Mohamed Saed Elbehairy, et al. “Driving pressure guided ventilation versus conventional lung protective strategy in morbid obese patients undergoing laparoscopic bariatric surgery: a prospective randomized controlled study.” Read article here.
