目的探讨防止限制性门腔静脉侧侧分流术后吻合口扩大的方法。方法对32例肝硬变门脉高压症患者行限制性门腔静脉分流术，术中采用不吸收缝线连续缝合门腔静脉吻合口前后壁形成自然的限制环，以防止术后吻合口的扩大。结果32例患者于术后3～36个月行彩超或螺旋CT检查，显示门腔静脉吻合口均无扩大； 术后再出血率为3.1%（1/32），肝性脑病发生率为6.3%（2/32）； 术后≤6个月时肝功能均有不同程度改善，与术前比较其差异有显著性（P＜0.001）； 全部病例随访6~49个月，随访率为100%。结论改良的限制性门腔静脉侧侧分流术是治疗肝硬变门脉高压症的有效方法。
Objective To evaluate the feasibility of X-ray guided access to the extrahepatic segment of the main portal vein (PV) to create a transjugular extrahepatic portacaval shunt (TEPS). Methods 5F pigtail catheter was inserted into the main PV as target catheter by percutaneous transhepatic path under ultrasound guidance. The RUPS-100 puncture system was inserted into the inferior vena cava (IVC) by transjugular path under ultrasound guidance. Fluency covered stent was deployed to create the extrahepatic portacaval shunt after puncturing the target catheter from the IVC under the X-ray guidance, then shunt venography was performed. Enhanced CT of the abdomen helped identify and quantify the patency of the shunt and the presence of hemoperitoneum. Results The extrahepatic portacaval shunts were created successfully by only 1 puncture in 6 pigs. No extravasation was observed in shunt venography. One pig died of anesthesia on the day of operation. The extrahepatic portacaval shunts were failed in 2 pigs 3 days after the operation (one was occluded and the other one was narrowed by 80%). The extrahepatic portacaval shunts were occluded 2 weeks after the operation in the remaining 3 pigs. The shunts were out of the liver and no hemoperitoneum was identified at necropsy in the 6 pigs. Conclusion TEPS is technically safe and feasible under the X-ray guidance.