“…Warm ischemia times of <30---60 min are considered acceptable for liver, lung and pancreas, versus <120 min for kidney---though the concrete times depend on the hospital protocol used in each case. 4,13 The percentage of patients who do not suffer asystolia within the established time limit, and who therefore cannot be used as donors, is estimated to be 17---36% 12,14 ; and (3) donors of this kind produce fewer organs. In the United Kingdom, a brain dead donor generates 3.9 organs on average, versus 2.5 organs in the case of a non-heart beating donor.…”