Which mode of mechanical ventilation has proven most effective for the incidence and treatment of air leak syndromes?

• A. Conventional mechanical ventilation (CMV)
• B. High frequency jet ventilation (HFJV)
• C. High frequency oscillatory ventilation (HFOV)
• D. Spontaneous breathing with support

Answer: (B)

Air leak syndromes are driven by high or uneven pressures that push air into the pleural space or mediastinum. The ventilation approach that best minimizes this risk while still providing effective gas exchange is high frequency jet ventilation. It delivers very small tidal volumes at a rapid rate with jet breaths, so peak pressures are kept low and the mean airway pressure is gentler compared with conventional modes. This combination reduces ongoing barotrauma and often allows air leaks to resolve, while still supporting ventilation and oxygenation. In contrast, conventional ventilation tends to use higher pressures that can worsen leaks, spontaneous breathing with support relies more on patient effort and may not control pressures well, and while high frequency oscillatory ventilation can be helpful, HFJV has been shown to be particularly effective for preventing progression and facilitating resolution of air leaks in many settings.