2003 年 53 巻 3 号 p. 275-279
Background and Aims : To investigate the usefulness of intraarterial chemotherapy (IAC) with CDDP powder and lipiodol suspension (LCS) for invasive bladder cancer as a dose escalation modality of conventional IAC, we administered LCS into the internal iliac artery of dogs and evaluated pharmacokinetics of CDDP. Methods : An angiographic catheter was inserted to the internal iliac artery of an anesthetized dog under fluoroscopic guidance. CDDP solution, LCS, or a combination of CDDP solution and LCS were intra-arterially infused. For comparison, CDDP solution was also intravenously infused. The dose of CDDP ranged from 1 to 3 mg/kg. For combination study, the dose of CDDP ranged from 3 to 5 mg/kg. In all groups, blood samples were collected 5, 15, 30, 60, 120, and 180 minutes after administration, and serum Pt levels were measured. Results : In the LCS group, the serum Pt level was lower than those after intravenous or intraarterial infusion of CDDP solution. In the combination therapy group, the serum Pt level increased with the total dose of CDDP. Conclusions : Intraarterial infusion of LCS showed a lower systemic CDDP level. This method may reduce the incidence of side effects, suggesting the usefulness of intraarterial infusion therapy with LCS for invasive bladder cancer.
