“…7,16 However, lungs from donors aged 455 years of age have been transplanted successfully, and several investigators have already shown that the use of lung donors aged 455 years has not been a risk factor for mortality. [30][31][32] We believe that grafts from this type of donor may have been lost in the past due to less than ideal donor management, and we also believe that potential donors could have been rejected due to PaO 2 /FiO 2 o 300 mm Hg. Now, with this strict bedside protocol, potential loss of lung donors can be avoided.…”