This report describes 3 episodes of successful relief of protracted hypercarbia in a young infant with BPD using HFOV after failure of conventional ventilatory therapy.

• 本篇报告描述一肺支气管发育不全幼儿，合并高二气化碳血症，在传统呼吸器治疗失败后，三次成功的以高频振动呼吸器减轻症状的经验。