Fanelli Fabrizio
Vascular and Interventional Radiology Unit, "Sapienza" University of Rome, Viale Regina Elena 324, 00161-Rome, Italy.
ISRN Hepatol. 2014 Mar 18;2014:762096. doi: 10.1155/2014/762096. eCollection 2014.
Since Richter's description in the literature in 1989 of the first procedure on human patients, transjugular intrahepatic portosystemic shunt (TIPS) has been worldwide considered as a noninvasive technique to manage portal hypertension complications. TIPS succeeds in lowering the hepatic sinusoidal pressure and in increasing the circulatory flow, thus reducing sodium retention, ascites recurrence, and variceal bleeding. Required several revisions of the shunt TIPS can be performed in case of different conditions such as hepatorenal syndrome, hepatichydrothorax, portal vein thrombosis, and Budd-Chiari syndrome. Most of the previous studies on TIPS procedure were based on the use of bare stents and most patients chose TIPS 2-3 years after traditional treatment, thus making TIPS appear to be not superior to endoscopy in survival rates. Bare stents were associated with higher incidence of shunt failure and consequently patients required several revisions during the follow-up. With the introduction of a dedicated e-PTFE covered stent-graft, these problems were completely solved, No more reinterventions are required with a tremendous improvement of patient's quality of life. One of the main drawbacks of the use of e-PTFE covered stent-graft is higher incidence of hepatic encephalopathy. In those cases refractory to the conventional medical therapy, a shunt reduction must be performed.
自1989年里希特在文献中描述首例针对人类患者的手术以来,经颈静脉肝内门体分流术(TIPS)在全球范围内被视为一种管理门静脉高压并发症的非侵入性技术。TIPS成功降低肝窦压力并增加循环血流量,从而减少钠潴留、腹水复发和静脉曲张出血。在肝肾综合征、肝性胸水、门静脉血栓形成和布加综合征等不同情况下,可以对TIPS分流进行多次修订。以前关于TIPS手术的大多数研究都基于裸支架的使用,大多数患者在传统治疗2至3年后选择TIPS,因此在生存率方面TIPS似乎并不优于内镜检查。裸支架与分流失败的较高发生率相关,因此患者在随访期间需要多次修订。随着专用的e-PTFE覆膜支架移植物的引入,这些问题得到了彻底解决,不再需要再次干预,患者的生活质量有了极大改善。使用e-PTFE覆膜支架移植物的主要缺点之一是肝性脑病的发生率较高。在那些对传统药物治疗无效的病例中,必须进行分流减少。