The incidence of hypertension 2 years after renal transplantation and
the possible causes of hypertension were studied retrospectively. A gr
oup of 93 patients treated with cyclosporin (CyA), azathioprine (Aza),
and/or prednisolone (Pred) were compared to a group of 31 patients tr
eated with Aza and Pred. There were more patients with hypertension in
the CyA group (73 %) than in the Aza group (58 %). Hypertension befor
e transplantation predisposed to hypertension after transplantation. A
fter transplantation, hypertension was most common among patients with
polycystic kidney disease (46 %), chronic glomerulonephritis (67 %),
and diabetes (71 %). The accumulated immunosuppressive medication (CyA
/Pred) did not affect the occurrence of hypertension. Hypertensive pat
ients had significantly poorer graft function than did normotensive pa
tients (serum creatinine level 229 mu mol/l vs 162 mu mol/l, P < 0.01)
. The 10-year graft survival was markedly impaired in the group with h
ypertension (42 % vs 65 % for normotensives, P < 0.05). The 10-year pa
tient survival was 59 % vs 79 % (P = NS). The study further confirms t
he frequent finding that hypertension has a negative effect on graft a
nd patient survival rates.