title: Endovascular diagnosis and intervention in patients with isolated hyperammonemia, with or without ascites, after liver transplantation.
abstract: Hyperammonemia with or without ascites with normal synthetic liver functions after liver transplantation might indicate the presence of anastomotic stenosis of the portal or hepatic vein or the existence of a patent portosystemic shunt. The authors describe six patients, three children after split-liver transplantation and three adults after cadaver liver transplantation, who presented with hyperammonemia. Three patients had ascites. All lesions were successfully treated percutaneously; stents were placed in patients with anastomotic stenoses and coil embolization was performed in patients with patent portosystemic shunts--with either transhepatic or transjugular approaches according to the site of the abnormality. Ammonia levels returned to normal, and ascites had regressed completely for at least 3 months.
authors.affiliation: Department of Diagnostic Radiology, Unit of Vascular and Interventional Radiology, Rabin Medical Center, Keren Kayemet Leisrael 7, Petah Tiqwa 49372, Israel.
authors.forename: Alexander
authors.initials: A
authors.lastname: Belenky
authors.forename: Igor
authors.initials: I
authors.lastname: Igov
authors.forename: Youval
authors.initials: Y
authors.lastname: Konstantino
authors.forename: Gil N
authors.initials: GN
authors.lastname: Bachar
authors.forename: Eitan
authors.initials: E
authors.lastname: Mor
authors.forename: Franklyn
authors.initials: F
authors.lastname: Graif
authors.forename: Ziv
authors.initials: Z
authors.lastname: Ben-Ari
authors.forename: Ran
authors.initials: R
authors.lastname: Tur-Kaspa
authors.forename: Eli
authors.initials: E
authors.lastname: Atar
mesh_terms: D000293:Adolescent; D000328:Adult; D001201:Ascites / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery*; D001807:Blood Vessel Prosthesis; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D022124:Hyperammonemia / Q000209:etiology* / Q000601:surgery*; D007223:Infant; D016031:Liver Transplantation / Q000009:adverse effects* / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D015641:Radiography, Interventional / Q000379:methods*; D015607:Stents; D016896:Treatment Outcome; D055815:Young Adult