Two types of emulsions and suspensions were prepared using 40% Lipiodol (LIP)and Ultra-Fluid Lipiodol(UFL)with mitomycin C(MMC)by the“pumping techni- que”.The physical stabilities of each preparation were examined microscopically and macro scopically.The drug release test was made by using dissolution tester uhder rotating oar method,the concentrations of MMC released from the preparations were determined spectro- photometrically.The results showed that the emulsion was unstable,underwent phase separation easily and drug release rapidly.The stability of the emulsion was related to the proportion Lipiodol and aqueous solution(oil/water ratio),The ratio of 4:1 was ruich made stable than that of 2:1.The stability of the UFL emulsion was better than that of the LIP. The suspension was mare stable than the emulsion.The UFL suspension was much more suitable for clinical use because of not so viscons than the LIP.

Objective To investigate the effects and adverse events of Yiaisanjie soup combined with sustained release fluorouracil in treating pancreatic cancer.Methods From January 2012 to December 2015,the clinical data of 62 cases with pancreatic cancer in Deqing County People's Hospital were retrospectively analyzed,which were divided into combination group and control group.The combination group underwent the implantation of sustained release fluorouracil panicles under CT guidance and took Yiaisanjie soup once a day for at least 5 cycles of 3-week administration and then 1-week no administration.The control group was treated only by sustained fluorouracil panicle implantations.The blood samples at fasting were collected before and 1 week after treatment to detect serum tumor markers.The adverse events were recorded.The therapeutic effect for solid tumors was evaluated according to response evaluation criteria in solid tumors(RECIST).Results Before treatment,CEA,CA125,CA242,CA19-9 in 2 groups had no statistical differences.After treatment,these tumor markers obviously decreased in both groups compared with before treatment.Compared with the control group,the CEA,CA125,CA242,CA50 and CA19-9 in combination group decreased at a more significant degree,and the difference was statistical significant (P ＜ 0.05).The incidence of Ⅱ and Ⅲ degree thrombocytopenia,nausea,vomiting and diarrhea was significantly lower in the combination group than in the control group (12.12％ vs 34.48％,18.18％ vs 48.28％,9.09％ vs 41.38％,all P＜0.05).There were 10 cases with partial remission (PR),17 cases with stable disease (SD) and 6 cases with progressive disease (PD),and the total effective rate was 81.8％ (27/33) in the combination group.There were 5 cases with PR,15 cases with SD and 9 cases and PD,and the total effective rate was 69.0％ (20/29) in the control group.The difference was not statistically significant (x2 =1.390,P =0.119).Conclusions The therapeutic effect of Yiaisanjie soup combined with sustained release fluorouracil in treatment of pancreatic cancer is not obvious,but the combination can significantly reduce serum tumor markers and reduce the incidence of side effects.

Resolution of the complications after liver transplantation is one of the important factors related to prognosis. Hepatic artery thombosis (HAT) after liver transplantation can lead directly to trans- planted liver undergone necrosis, biloma formation and liver functional exhaustion. The early diagnosis with Color Doppler which should be the first method of choice, CTA, MRA and angiography could lead to exact demonstration, and proper treatment can result in better prognosis. The microinvasive techniques such as local thrombolysis, balloon dilatation and stent placement are safe and effective for treatment of hepatic artery thombosis. The vascular reconstruction and oxygen hyperbaric are effective therapeutic methods. Repeat liver transplantation is still the last important choice for survival.

Objective To introduce the different therapeutic methods for the different types of traumatic pseudoaneurysms. Methods Traumatic pseudoaneurysm was treated in 8 patients. Intraarterial embolization was performed with gelfoam in 3 patients for terminal type. Endovascular covered stent graft was inserted in 2 patients with trunk type. One patient with branch type, we used metallic coils to embolize both broken ends. One patient with perforation in femoral artery was treated with compression. For 1 patient with huge haematoma and pseudoaneurysm, operation for elimination the haematoma was performed after embolization. Results Pseudo- aneurysm kept closed after treatment achieved in all 8 patients. Distal arterial pulse was normal in 2 patients treated with stent graft. A new pseudoaneurysm presented as a complication at puncture site in 1 patient due to other factors. There were no other symptomatic complications. Conclusions Pseudo- aneurysms can be treated effectively with interventional techniques instead of surgical operation.

Objective To evaluate the safety、feasibility and the long-term effectiveness of polyurethane stent placement for treatment of nasolacrimal duct obstruction. Methods Fifty-three cases (64 eyes) with complete nasolacrimal duct obstruction received the lacrimal stent placement. Dacryocystography was performed before and after the procedure. The average follow-up period was 48.3 months (range, 13-78months), the long-term patency and the effectiveness after stents removal were analyzed. Results Stent placement was technically successful in 62eyes, and the success rate was 96.9% with no severe complications. On long-term follow up, the stent patency rate was 76.8% at 1 year. However, it decreased to 33.3% at 3 years and 28.6% at 5 years. Nine stents were removed when the symptoms recurred, including granulation tissue in 4 stents and mucous material in 5. After removal, 2 nasolacrimal ducts were patent, and 2 kept patent after stents replacement, but all reoccluded within 6 months. Conclusions Interventional placement of polyurethane stent in the obstructed nasolacrimal duct is a simple and safe outpatient procedure, but the long-term patency is not encouraging, and the right stent removal time has not yet been approved.

Objective A new mechanical thrombectomy instrument with preliminary clinical application were introduced. Methods Four cases (3 men and one woman; 61-71 years of age, mean age 66) consisting six legs with subacute or chronic occlusion of the femoropopliteal arteries having a course of 75 days to 10 months, were included in this study. All patients were treated with Straub Rotarex System (Straub Rotarex, patent pending. Straub medical, Wangs, Switzerland). Among them 2 cases were caused by atherosclerosis, 1 by emboli and 1 by diabetes mellitus. The lengths of the occluded segments were 3.8-56 cm. Results The thrombi were removed, and the arteries were undergone recanalization. The blood loss was low, amounting to 5-180 ml. Distal emboli formation in 3 legs were treated successfully by thrombsuction or thrombolysis. Conclusion Straub Rotarex System is a new safe and effective mechanical thrombectomy instrument.

Arterial steal syndrome(ASS),a scarce complication after liver transplantation,is charac-terized by hepatic arterial hypoperfusion of the graft caused by a shifting of blood flow into the splenic,left gastric,or gastroduodenal arteries. It can lead to stricture formation of biliary system and transplanted liver function exhaustion. The early diagnosis and treatment are important for protecting the transplanted liver function. Dynamic CDFI after liver transplantation as a routine is necessary to find out the suspected lesions,and transcatheter angiography as the gold standardization can give clear dignosis. Embolization of splenic artery is minimally invasive,successful and less complication treatment for ASS and especially the coil embolization of middle segment of splenic artery is the best choice.

The insufficient blood supply to the portal vein after liver transplantation, mainly caused by portal vein stenosis (PVS)or portal vein thrombosis(PVT), occurs low in incidence but would be serious enough to lead to graft failure. Prompt diagnosis and treatment is critical to allow graft salvage. The color Doppler flow image (CDFI) could be the first choice for testing portal venous flow, and angiography is reliable for further accurate diagnosis on meaningful functional change of the stenosis. The interventional therapy , including percutaneous balloon angioplasty and stent placement, is safe and effective in lowering the portal venous pressure after hepatic transplantation with portal vein stenosis. Thrombolysis, percutaneous mechanical fragmentation and stent placement ,as the treatments of early portal vein thrombosis, are effective therapeutic methods, and TIPS is also a proper management if necessary.

The occurrence rate of the obstruction of the hepatic vein or the inferior vena cava is very low. Obstruction can develop acutely as a result of technical problems or can present itself much later after the transplantation due to intimal hyperplasia or perianastomotic fibrosis. Clinically, the common presentations include hepatic dysfunction, liver engorgement, ascites, abdominal pain, etc. Percutaneous endovascular treatment with balloon dilation or stent placement is a safe and effective alternative treatment, which can keep the vessels open for a long period of time. Angioplasty can achieve technical success in restoring anastomotic patency almost to 100% of cases, but, unfortunately, restenosis occurs frequently. For adult patients or pediatric patients with adult-sized hepatic veins, stenting seems to be the optimal choice.

Objective To introduce the technique of percutaneous biliary drainage for treatment of malignant biliary obstruction and to eveluate its therapeutic effect. Methods Percutaneous biliary drainage was performed in 47 patients with malignant biliary obstruction. The biliary obstruction occurred in the common bile duct of 10 patients, in the common hepatic duct for 13, at the conjuction of right and left hepatic ducts in 24. The inner outer draining catheter, the metallic stent or plastic endoprosthesis was placed to drain the bile internally if the obstruction could be passed with guide wire after percutaneous transhepatic cholangiography, or the outer drainage could only be carried out. Results The internal drainage was done with stent in 15 patients and with plastic endoprosthesis in 3, the inner outer drainage in 15, and the external drainage in 14. The serum total bilirubin decreased from 514.1?204.3?mol/L before the procedure to 238.4? 142.8 ?mol/L one week after the procedure( P