Use of Tissue Plasminogen Activator for Reopening of Clotted Dialysis Catheters

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Abstract
The use of central venous catheters as permanent vascular access in chronic hemodialysis is complicated by clotting. We have tried a nonallergenic thrombolytic agent, tissue plasminogen activator (t-PA), to dissolve catheter luminal thrombosis. Eight patients, 7 in chronic hemodialysis and 1 treated by immune adsorption had 18 treatments with locally applied t-PA (2 mg/2 cm3). Fifteen out of 16 treatments with longer bolus dwell than 60 min were successful. No side effects occurred. t-PA dissolves clot formation efficiently and safely, the drug is nonallergenic and can therefore be given repeatedly.
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