FACTORS PREDICTING THE OUTCOME OF INTRAARTERIAL THROMBOLYSIS IN PERIPHERAL ARTERIAL AND GRAFT OCCLUSIONS

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Abstract

Purpose:

To determine the association between successful intraarterial thrombolysis and the following factors: sex, age, symptoms, duration of symptoms, length of occlusion, conduit type, runoff, and catheter localization.

Material and Methods:

Forty-six patients with acute or subacute occlusions of peripheral native arteries and grafts were treated with continuous intraarterial infusion of streptokinase or urokinase. A univariate chi-square test and logistic regression analysis were used.

Results:

Successful lysis was achieved in 27 of 46 patients (59%). The logistic regression analysis revealed a significant association between successful thrombolysis and good runoff (p<0.01). A catheter position above the occlusion resulted in lysis in only one of 11 patients. The variables rest pain and claudication were slightly significant (p=0.07). None of the other variables were significant, but a trend toward a separate effect of duration of occlusion was found.

Conclusion:

Good runoff and intrathrombotic infusion are virtual necessities in obtaining a positive immediate outcome in peripheral arterial and graft occlusions. In our study, other factors were less important.

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