Living donor-morbidity was evaluated in 470 consecutive cases of living don
or liver transplantation carried out from June 1990 to May 1999 at Kyoto Un
iversity. Grafting was categorized into 4 groups according to the resection
lines; left lateral segmentectomy (S2 + 3, n = 282, R1), extended left lat
eral segmentectomy without middle hepatic vein (MHV) (S2 + 3 + part4, n = 4
5, R2), left lobectomy with MHV (S2 + 3 + 4, n = 99, R3) and right lobectom
y without MHV (S5 + 6 + 7 + 8, n = 43, R4). Intraoperative blood loss and o
peration duration were less for left lateral segmentectomy, but no signific
ant difference was observed between left lobectomy and right lobectomy. The
length of postoperative hospital stays was comparable among all groups exc
ept for the group with right lobe grafting. The AST values at the peak and
at POD 7 were significantly elevated for right lobectomy, but the AST value
normalized within one month in the majority of the cases. The close follow
-up of donors with more than 1000 mi intraoperative bleeding, and of those
donors who stayed in hospital for more than 30 days, the close followup, fu
rthermore, of those donors with AST values higher than 100 IU/L AST after o
ne month, revealed complete recovery. Biliary leakage was the most common a
nd annoying complication after donor operations, especially in for right lo
be grafting, but all donors recovered completely with conservative or minim
al invasive therapy. The two cases of re-operation due to adhesive mechanic
al ileus we encountered were resolved completely. Finally, no donor-operati
on related death was noted. In conclusion, the morbidity of living donors i
s low or minimal even for right lobectomy, the most extended procedure, and
complete recovery can be expected in all cases.