IMPAIRED FIBRINOLYSIS IN CYCLOSPORINE-TREATED RENAL TRANSPLANT PATIENTS ANALYSIS OF THE DEFECT AND BENEFICIAL EFFECT OF FISH-OIL

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Abstract
Cyclosporine treatment has been associated with thrombotic vascular complications. We investigated the activity of the fibrinolytic system and its capacity to respond upon DDAVP stimulation in a group of 20 cyclosporine-treated patients as compared with a group of 9 azathioprine-treated patients. Furthermore, the effect of the administration of fish-oil to these patients on the endogenous fibrinolytic activity was studied in a double-blind randomized, placebo-controlled cross-over study. The cyclosporine-treated patients showed a significantly reduced plasminogen activator activity and plasmin generation response upon the infusion of DDAVP as compared with the azathioprine group. In the cyclosporine group 60% of the patients had an impaired fibrinolytic response, whereas this was found in only 11% of the azathioprine-treated patients (P These results indicate that cyclosporine treatment induces an impaired fibrinolysis that may contribute to the frequent occurrence of thromboembolic complications and eventually the impairment of renal function in cyclosporine-treated patients. The beneficial effect of the administration of fish-oil on the endogenous fibrinolysis may result in a reduction of the adverse events associated with cyclosporine treatment.

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