title: A new nitinol monofilament stent: early experience with use for transjugular intrahepatic portosystemic shunts.
abstract: The purpose of this study was to investigate the suitability of a new nitinol monofilament stent (Niti-S) for transjugular intrahepatic portosystemic shunt (TIPS) creation. TIPS was performed with a Niti-S stent in 22 patients for variceal bleeding (n = 20) or intractable ascites (n = 2). The efficacy, complication, and patency rates during the follow-up period (up to 27 months, mean 13.9 months) were evaluated. TIPS was successfully performed in all patients. The mean portosystemic pressure gradient decreased from 23.8 +/- 7.2 mmHg to 10.2 +/- 3.1 mmHg. No mortality or significant morbidity was encountered at 1 month. Variceal bleeding and/or ascites were controlled in all patients. Primary patency rates were 77.3% at 6 months and 71.8% at 1 year. Secondary patency rates were 95.4% up to 26 months. TIPS with the Niti-S stent produced short-term technical and clinical results comparable to the other commercially available stents. A prospective randomized comparison study is indicated.
authors.affiliation: Department of Radiology and the Institute of Radiation Medicine, Seoul National University College of Medicine, 28 Yongon-Dong, Chongno-Gu, Seoul 110-774, Korea.
authors.forename: Chang Jin
authors.initials: CJ
authors.lastname: Yoon
authors.forename: Jin Wook
authors.initials: JW
authors.lastname: Chung
authors.forename: Hyun Beom
authors.initials: HB
authors.lastname: Kim
authors.forename: Joon Woo
authors.initials: JW
authors.lastname: Lee
authors.forename: Jae Hyung
authors.initials: JH
authors.lastname: Park
mesh_terms: D000328:Adult; D000497:Alloys / Q000627:therapeutic use*; D001201:Ascites / Q000628:therapy; D005260:Female; D005500:Follow-Up Studies; D006470:Hemorrhage / Q000628:therapy; D006801:Humans; D008099:Liver / Q000473:pathology; D008103:Liver Cirrhosis / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010690:Phlebography; D011169:Portal Vein / Q000000981:diagnostic imaging* / Q000601:surgery*; D019168:Portasystemic Shunt, Transjugular Intrahepatic / Q000379:methods*; D015607:Stents; D015996:Survival Rate; D014654:Vascular Patency / Q000502:physiology
chemical_list: D000497:Alloys; C013616:nitinol