Dual transplant of marginal kidneys otherwise not considered for single tra
nsplant may give access to an expanded pool of cadaveric organs without exp
osing recipients to the drawbacks of a limited nephron mass supply. This pr
ospective, case-control study compares adverse events and graft outcome in
24 recipients of two marginal kidneys from donors who were >60 yr old or wh
o had diabetes, hypertension, or non-nephrotic proteinuria (cases), with th
at of 48 age- and gender-matched control subjects who received single ideal
grafts at the same center and were given the same immunosuppressive therap
y. Marginal kidneys with no macroscopic abnormalities were selected for the
double transplant on the basis of a predefined score of histologic damage.
Six-month patient and kidney survival was 100% with both of the procedures
. Incidence (20.8% versus 20.8%) and median (range) duration of posttranspl
ant anuria (5 [2 to 12] versus 7 [2 to 13] days) were comparable in cases a
nd control subjects, respectively, Time to normal serum creatinine and mean
serum.