title: Balloon occlusion retrograde transvenous obliteration for inferior mesenteric vein-systemic shunt.
abstract: Two cases of portosystemic encephalopathy caused by an inferior mesenteric vein (IMV)-internal iliac vein shunt and an IMV-renal vein shunt are presented. IMV and systemic varicosity consisted of a first functional segment, a stagnant segment, and a second functional segment. Both patients underwent balloon occlusion retrograde transvenous obliteration (BRTO), using a microcatheter, to occlude the stagnant segment selectively. Although transient portal vein thrombosis was observed in case 1 and aggravation of esophageal varices was observed in case 2, these complications were tolerable. Following BRTO, the portosystemic encephalopathy in both cases resolved, and serum ammonia levels, although elevated, remained within the normal range.
authors.affiliation: Department of Radiology, Wakayama Medical University, 811-1 Kimiidera, Wakayamashi, Wakayama 641-8510, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Minamiguchi
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Kawai
authors.forename: Morio
authors.initials: M
authors.lastname: Sato
authors.forename: Akira
authors.initials: A
authors.lastname: Ikoma
authors.forename: Munehisa
authors.initials: M
authors.lastname: Sawa
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Sonomura
authors.forename: Shinya
authors.initials: S
authors.lastname: Sahara
authors.forename: Kouhei
authors.initials: K
authors.lastname: Nakata
authors.forename: Takami
authors.initials: T
authors.lastname: Tanaka
authors.forename: Isao
authors.initials: I
authors.lastname: Takasaka
authors.forename: Motoki
authors.initials: M
authors.lastname: Nakai
mesh_terms: D000368:Aged; D021721:Balloon Occlusion / Q000009:adverse effects; D003287:Contrast Media; D004932:Esophageal and Gastric Varices / Q000150:complications / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy*; D005260:Female; D005471:Fluoroscopy; D006501:Hepatic Encephalopathy / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology / Q000628:therapy*; D006801:Humans; D007084:Iliac Vein / Q000000981:diagnostic imaging / Q000503:physiopathology*; D008642:Mesenteric Veins / Q000000981:diagnostic imaging / Q000503:physiopathology*; D010690:Phlebography; D015641:Radiography, Interventional; D012079:Renal Circulation; D012082:Renal Veins / Q000000981:diagnostic imaging / Q000503:physiopathology*; D013152:Splanchnic Circulation; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
chemical_list: D003287:Contrast Media