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Transplantation. 1987 Jun;43(6):860-4.

Hypertension after renal transplantation. A comparison of cyclosporine and conventional immunosuppression.


Hypertension is a common complication after renal transplantation and is associated with increased mortality. Cyclosporine is known to be nephrotoxic and raises blood pressure in recipients of cardiac and bone marrow transplants, but there is conflicting data on the role of cyclosporine after renal transplantation. We have examined this question in patients entered into the second Oxford prospective randomized comparison of short-term cyclosporine treatment alone with conversion to azathioprine and prednisolone at 90 days (CsA group), and conventional therapy with azathioprine and prednisolone throughout (AP group). Blood pressure and antihypertensive medication were similar in the CsA and AP treatment groups during the first 90 days. Following conversion from cyclosporine, mean blood pressure fell from 155/94 to 142/81 within 7 days, and this fall correlated with the change in plasma creatinine over the same period (r = 0.44, P less than 0.05). Blood pressure was subsequently lower in the converted patients than in those treated with AP throughout. Six months after transplantation patients converted from cyclosporine not only had lower blood pressure but also required fewer antihypertensive drugs than AP patients. This study demonstrates that cyclosporine may elevate the blood pressure in recipients of renal transplants. This effect may either be direct or mediated through the effect of cyclosporine on renal function. Administration of corticosteroids during the first three months after transplantation is implicated as a possible cause of persisting high blood pressure.

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