Objective To investigate the correlated issues in the stenting treatment of major airway constriction. Methods Nineteen cases of major airway stenting procedure were studied retrospectively. The clinical choice of stents of different advantages or deficiencies were discussed. The importances of intravenous anesthesia supporting, life parameters monitoring during the procedures and the prevention of complications were analysed. Results Under intravenous and local anesthesia, 19 Wallstents had been successively placed and relieved 19 cases of major airway constrictions due to malignant or benign diseases (15 of tumors, 3 of tuberculosis, 1 of tracheomalacia). Intravenous anesthesia and life parameters monitoring had made the procedures more safe and precise. Conclusions Major airway stenting is an reliable method for relieving trachiobronchial stenosis; and intravenous anesthesia supporting and life parameters monitoring guarantee the satisfactions of procedures.

NK cell function was tested in 60 patients randomly selected with ad- vanced primary liver cancer(PLC)during interventional treatment.The patients were di- vided into three groups and treated with different regimens.In group 1(n=20),routinally using HAI(5-Fu 1000mg,CDDP 30mg)and HAE(Lipiodel 10～20ml,EAMC 50mg)in group 2,the treatment project is same as in group 1,but after the treatment,total 8g Natrii thiosulfas was administrated intravenously within 48 hours;in group 3,one week after treatment as in group 1,the patients received a-2b IFN injected subcutaneously at a dose of 10?10~6 IU,B.i.w,for more than 2 months.The results showed that:1.NK function in the patients with advanced PLC was 17.45?4.5% ,significantly lower than that in the nor- mal ones(21.39?3.58%);2.After the interventional treatment,the NK function of the patients were obviously decreased in group 1(13.58?3.14%),and in group 2(15.45?2. 69%),but increased in group 3(19.20?3.27%).The results suggested that conventional interventional treatment will affect NK cell function of patients with advanced PLC in some degree,and the effect can be reduced by injecting Natrii Thiosulfas i.v.,and administering IFN.

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.

Monitoring of cisplatin concentration in blood was done in 15 cases with inoperable lung cancer during bronchial artery infusion.The curve of time drug concentration in blood in target organ and peripheral tissue were analysed.Results showed that the drug concentration in target was evident higher than that in peripheral tissue,and the drug concentration in target organ was much higher than the effective drug concentration,therefore. a reliable theory was given for treatment of lung cancer by bronchial artery infusion.

Percutaneous transluminal angioplasty(PTA)for treating peripheral artery stenosis was performed in 20 patients,including 22 iliac,2 femoral and 1 subclavian arteries. The primary successful rate was 96%.The long-term patency rate was 92%.No severe complications occured in all cases.The indications,technique,efficacy and complications were discussed.

Transjugular intrahepatic portosystemic stent shunt(TIPSS)was per- formed in 30 cases of liver cirrhosis with portal hypertention.Operations were susceeded in 29 cases with only one failure.Complications happened in 7 cases,In 29 patients the average blood bilirubin was 25.12?9.80 mmol/l before TIPSS turning to 50.46?34.50 mmol/l after TIPSS;The average blood amonia was 152.33?65.30 ?g/dl before TIPSS changing to 233.33?599.96 ?g/dl after TIPSS.The contributing factors were due to liver function state and shunting channel diameter for causing hepatic encephalopathy and jaundice.Other complications such as multipule liver abscesses,pneumonia,bacteriemia were related to the accompanied diseases and operative technique.The authors introduced the principles of pre- vention and treatment of complications,together with the indications and contraindications of TIPSS.

The blood samples of hepatic arteries and peripheral veins of 65 cases of hepatocell ular carcinoma were studied.The results showed :1.The drop of plasma prekallikrein (PK), the elevation of fibrinogen degradation products (FDP) and the prolongation of prothrombin time(PT) were observed in three types (common, inflammatory and sclerosing) of hepatocellular carcinomas.2.The effect of TAE on PK was significant proportional to the treatment frequency.3.Same as the effect of TAI on the PT.4.The increasing frequency

Pulmonary Arteriography in 11 patients with pulmonary filling defects found by TC-MAA pulmonary perfusicn were analysed The results of arteriography corresponded well with the results of lung imaging.The technique of pulmonary arteriography, radiologic manifestation of PTE together with the correlation of literatures were discussed.

Thirty-four percutaneous lumbar discectomies (PLD) were performed in 30 cases of lumbar disc herniation.The cure rate was found to be 50%, total effective rate was 93% with no severe complications.The total effective rate was 100% for buldging of lumbar disc and mild disc herniation, while the total effective rate was only 60% for severe disc herniation and extrusion or sequestration.The value of magnetic resonance imaging in selecting patients for PLD and the entry route selection were discussed

This aritcle reported the angiographic appearances and the therapeutic results in 24 pathologic proved cases advanced gynecologic malignancies treared by intrainternal iliac arterial infusion, including 5 ovarin carcidomas, 18 cervical carcinomas, and 1 chorioepethelioma.The bilaterial iliac arteriography was performed beforehand and followed by the arterial infusion.The doses of anti-cancerous agents were CDDP 50～80mg/m~2, MMC 8～10mg/ m~2.The treatment was performed every two to three weeks with three to five times for one course.The results of treatment showed that the tumor diminution in size over 50% was noted in 19 cases, lower than 50% in 4 cases, whereas 1 case showed no change.After all the an giography of iliac artery was significant for the diagnosis of gynecologic malignancies while transcatheter infusion chemotherapy was also an effective measure for the treatment with comparative decrease in general side effects.