The endoscopic correction of vesicoureteral reflux is a well accepted
procedure. However, the search for the ideal injectable substance cont
inues. We compared the persistence of autologous free fat transplants
from the perivesical fat pad and the abdominal wall to the bladder sub
mucosa in an animal model. Perivesical fat consistently showed greater
persistence than abdominal wall fat over time. Perivesical fat may be
an ideal substance for endoscopic injection when treating vesicourete
ral reflux.