HFOV would be ideal but for conventional ventilation, fast rate, short inspiratory time and low pressures would be the ideal strategy along with lateral decubitus positioning and/or selective bronchial intubation if unilateral. The details lof thje clonventional styrategy are in Keszler M, et al. Multicenter controlled trial comparing high-frequency jet ventilation and conventional mechanical ventilation in newborn infants with pulmonary interstitial emphysema. J Pediatr 1991;119:85-93.