中药组方作为血管栓塞剂栓塞肝动脉的实验研究

The experimental studies of Chinese herbs as a vascular embolization agent for the hepatic arteries

目的研究中药组方作为血管栓塞剂的有效性、安全性及相关特性,以期获得理想的肿瘤血管栓塞剂。方法根据药典提供的数味具有抗癌和促凝作用的中草药,制备成栓塞剂。对其进行一系列有关特性的研究和鉴定,并应用其进行8头健康猪的肝动脉栓塞实验。结果中药组方栓塞剂为一种混悬剂,有一定黏滞性,不透X线,易经各种介入用导管注射;该栓塞剂具有良好的血液相容性和组织相容性,无致热原性及毒性作用;栓塞部位主要是末梢小动脉,栓塞牢靠,维持时间可达5周,不易形成侧支循环;经光镜和电镜观察其对正常肝组织损伤轻微,仅出现栓塞部位的肝细胞变性和胞质灶性坏死。结论中药组方栓塞剂具有良好的血管栓塞作用,使用方便、安全,是一种较理想的末梢型血管栓塞剂。

Objective To study the efficacy, safety and correlative characteristics of Chinese herb as a vascular embolization agent. Methods Vascular embolization agent combined from several kinds of Chinese herb was manufactured and served as anticarcinogen and coagulant according to the chinese Pharmacopeia. The characteristics of the combination embolization agent through embolizing the hepatic arteries in eight pigs were studied. Results The combination agent was a non-homogenous suspension, easily to be injected through 5-F catheter with hyper attenuation under fluoroscopy; simultaneously with good histocompatibility and hemo-compatibility and without feverish response and toxicity. The combination agent mainly embolized the peripheral arteries with maintaining occlusion for 5 weeks and without formation of collateral circulation. Slight injuries of normal hepatic tissues with hepatic cytonecrosis and endochyloma focal necrosis were found through optical and electronic microscopy. Conclusions The Chinese herb combination agent is safe and effective in experimental application with good angioembolic function and a potential peripheral embolization agent.