What method improves oxygenation and corrects paradoxical motion in flail chest?

In the context of managing flail chest, manual positive pressure ventilation (MPPV) is particularly effective at improving oxygenation and addressing paradoxical motion. Flail chest occurs when multiple adjacent ribs are fractured, leading to a segment of the chest wall moving inward during inspiration and outward during expiration, which can impair ventilation and oxygenation.

Manual positive pressure ventilation helps provide positive pressure to the lungs, thus improving ventilation and gas exchange by ensuring that the compromised area of the thoracic wall can still maintain some functional ventilation. It effectively allows for the inflation of the lungs, which helps to prevent atelectasis and improve overall oxygenation. The technique also stabilizes the thorax during the ventilatory cycle, counteracting the paradoxical motion caused by the flail segment.

Other methods, while they may support breathing, do not specifically address both the oxygenation and mechanical aspects of flail chest as MPPV does. Continuous positive airway pressure (CPAP), for example, provides a constant level of pressure but does not actively assist with the delivery of breaths as MPPV does. Similarly, positive end-expiratory pressure (PEEP) is used in mechanical ventilation strategies but does not directly counteract the mechanical instability associated with flail chest. Invasive