title: Use of guiding sheaths in peroral fluoroscopic gastroduodenal stent placement.
abstract: Our purpose was to assess the safety and usefulness of guiding sheaths in peroral fluoroscopic gastroduodenal stent placement. Two types of guiding sheath were made from straight polytetrafluoroethylene tubes. Type A was 80 cm in length, 4 mm in outer diameter and 3 mm in inner diameter. Type B was 70 cm in length, 6 mm in outer diameter and 5 mm in inner diameter. The type A sheath was used in 18 patients in whom a catheter-guide wire combination failed to pass through a stricture. The type B sheath was used in 22 patients in whom a stent delivery system failed to pass through the stricture due to loop formation within the gastric lumen. The overall success rate for guiding a catheter-guide wire through a stricture after using the type A sheath was 89%. The overall success rate for passing a stent delivery system through a stricture after using the type B sheath was 100%. All procedures were tolerated by the patients without any significant complications. The guiding sheaths were safe and useful in peroral fluoroscopic gastroduodenal stent placement.
authors.affiliation: Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1, Pungnap-2dong, Songpa-gu, Seoul, 138-736, Republic of Korea.
authors.forename: Jae-Ik
authors.initials: JI
authors.lastname: Bae
authors.forename: Ji Hoon
authors.initials: JH
authors.lastname: Shin
authors.forename: Ho-Young
authors.initials: HY
authors.lastname: Song
authors.forename: Chang Jin
authors.initials: CJ
authors.lastname: Yoon
authors.forename: Deok Ho
authors.initials: DH
authors.lastname: Nam
authors.forename: Won-Chan
authors.initials: WC
authors.lastname: Choi
authors.forename: Jin-Oh
authors.initials: JO
authors.lastname: Lim
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D004867:Equipment Design; D005260:Female; D005471:Fluoroscopy; D017219:Gastric Outlet Obstruction / Q000601:surgery*; D006801:Humans; D007415:Intestinal Obstruction / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019919:Prosthesis Implantation / Q000295:instrumentation / Q000379:methods; D015607:Stents