For the treatment of progressive bladder tumors, intraarterial infusion chemotherapy has been performed extensively with satisfactory results. However, we have experienced various cases not only in which side effects of the infusion drug appeared, but also in which treatment had to be discontinued because of infections and flexuous caused by the intraarterial infusion catheter. In this study, intraarterial infusion chemotherapy was done using the vascular-access-port (VAP) which is an access implanted in the body devised to improve the fault of the intraarterial catheter exposed outside of the body.