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Early Rethrombosis of Clotted Hemodialysis Grafts

Graft Salvage Achieved with an Aggressive Approach

¹ Department of Radiology, University of California—San Diego, 200 W. Arbor Dr., San Diego, CA 92103.
² Present address: Department of Radiology, Kaweah Delta Hospital, 400 W. Mineral King, Visalia, CA 93291-6263.

View larger version (22K): [in a new window]   Fig. 1. —Graph shows life table analysis of patency rates after technically successful pharmacomechanical thrombolysis of 39 clotted hemodialysis grafts. Note that survival rates improve markedly after 3 months, reflecting long-term benefit of aggressive approach. Time to repeated intervention (primary treatment) = [UNK], time to failure or revision (secondary treatment) = [UNK].

View larger version (25K): [in a new window]   Fig. 2. —Graph shows life table analysis of 39 "failed" grafts after pharmacomechanical thrombolysis compared with primary patency of various mechanical and pharmacomechanical studies. Note that our patency rate ([UNK]) compares reasonably with those obtained using other methods. Valji et al. [3] = [UNK], Trerotola et al. [5] = [UNK], Sharafuddin et al. [6] = , Beathard et al. [7] = x, Trerotola et al. [8] = .

View larger version (22K): [in a new window]   Fig. 3. —Graph shows life table analysis comparing secondary patency after pharmacomechanical thrombolysis of 39 "failed" grafts from our study ([UNK]) with overall institutional hemodialysis graft secondary patency of 81 "failed" grafts from the study of Valji et al. [3] ([UNK]). Although no significant difference between these survival curves exists, a trend toward late divergence of results is noted (Kaplan-Meier product-limit difference, p = 0.76).

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