胃左动脉区域灌注化疗治疗胃癌的药代动力学研究

目的 探讨胃左动脉区域灌注化疗治疗胃癌的合理性。方法 观察５－Ｆｕ经胃左动脉和外周静脉给药后的药代动力学变化。结果 胃左动脉给药，门静脉血中５－Ｆｕ浓度为外周静脉给药组的４～４０倍，而且维持５－Ｆｕ高浓度的时间明显延长；癌组织和癌旁淋巴细胞中５－Ｆｕ水平分别为外周静脉给药组１９倍和２３倍。结论 胃左动脉区域灌注化疗可明显提高癌肿局部的化疗药物浓度。

THE STUDY OFPHARMACOKINETICS OF 5-Fu AFTER LEFT GASTRIC ARTERY INTRA-ARTERIAL INFUSION IN TREATMENT OFGASTRIC CARCINOMA

Objective To evaluate the legitimate of regional artery infusion chemotherapy in the treatment of gastric carcinoma. Methods　The pharmacokinetics of 5-Fu after different route of administration was studied. Results High concentration of 5-Fu found in portal vein via left-gastric intra-artetial administration were 4-40 folds higher than the group via intravenous administration.The time of high concentrations of 5-Fu via left-gastric intra-arterial administration maintained significantly longer than by intravenous administraion. The concentration of 5-Fu in tumor tissues and paratumorous lymph tissues by intra-arterial administration were 19 times and 23 times of the group by intravenous administration. Conclusion Regional arterial infusion chemotherapy can significantly increase the concentration of chemotherapeutic drugs in the tumorous region.