[Radiologic after-care of transjugular intrahepatic stent shunt (TIPSS)]].
The transjugular intrahepatic stent-shunt (TIPSS) is a well accepted minimal invasive therapy for complications of portal hypertension: recurrent variceal bleeding, refractory ascites and liver failure due to the Budd-Chiari syndrome. The high frequency of shunt stenoses and occlusions makes regular follow up examinations essential. Despite modern non invasive imaging methods direct portography still is the gold standard for shunt surveillance in TIPSS. Ultrasound is helpful to detect shunt dysfunction, but nevertheless its failure rate is considerable despite the use of contrast enhancers such as Levovist because of anatomic and physical limitations, particularly when TIPSS-tracts deep in the liver are present. Reintervention rates approach 90-100% after 24 months, with 100% in child's A patients with comparatively good liver function. However, a strict shunt surveillance program with early portography and reintervention when necessary guarantees high clinical success rates associated with very low rebleeding rates below 10%. Overall the secondary success rate is 80%. Secondary failures are mainly caused by lack of patient compliance during follow-up. In a subgroup of patients no shunt maturation is observed, requiring multiple shunt revisions. In cases of recurrent shunt occlusions an association with bile leaks is presumed. In selected cases patients with chronically recurrent shunt stenosis or occlusions may benefit from placement of TIPSS stent grafts.
Hansmann
H J
HJ
Abteilung Radiodiagnostik, Klinikum der Ruprecht-Karls-Universität Heidelberg. jochen_hansmann@med.uni-heidelberg.de
Nöldge
G
G
Leutloff
U
U
Radeleff
B
B
Sauer
P
P
Richter
G M
GM
D000359:Aftercare; D003952:Diagnostic Imaging; D004868:Equipment Failure; D006801:Humans; D006975:Hypertension, Portal / Q000175:diagnosis* / Q000628:therapy; D019168:Portasystemic Shunt, Transjugular Intrahepatic; D019233:Retreatment