超声内镜引导下胰腺组织间化疗的实验研究

目的探究超声内镜引导下的组织间化疗在犬类胰腺模型上的安全性和可行性。方法在超声内镜引导下将19G穿刺针刺入实验狗的胰腺组织中,通过穿刺针将能够缓慢释放5-氟尿嘧啶的化疗粒子放置于此。观察14d后,处死动物取出放置粒子部位的胰腺组织进行观察。结果所有化疗粒子都被成功植入,没有粒子发生移位。胰腺组织的纤维素性坏死区域局限,无严重的并发症。细胞的凋亡指数在粒子植入中心1cm范围内增加。所有狗的生物化学参数都正常。结论超声内镜引导下的化疗粒子植入技术用于胰腺的组织间化疗是安全、简便、微创的。

Endoscopic ultrasonography-guided interstitial chemotherapy in pancreas: a pilot study in canine model

Objective To investigate the feasibility and safety of endoscopic ultrasonography (EUS) guided interstitial chemotherapy for the pancreas in canine model. Methods A therapeutic 19gauge needle was inserted into the pancreas with EUS guidance,and seeds with sustained release of 5-iluorouracil were implanted into the tissue. After 14 days of clinical observation,the animals were sacrificed and the tissue response to local chemotherapy was examined. Results All the seeds were implanted successfuUy and no migration was observed. Chemotherapy induced tissue fibrous necrosis was localized in the pancreas without significant complications. The apoptotic index of tissue within 1 cm of the seeds increased.Biochemical parameters were normal in all the dogs. Conclusion EUS-guided implantation of seeds is a safe,simple and minimally invasive technique for interstitial chemotherapy in the pancreas.