Should transjugular intrahepatic portosystemic shunt stent grafts be underdilated?

Ron C. Gaba, Ahmad Parvinian, Jeet Minocha, Leigh C. Casadaban, Grace Knuttinen, Charles E. Ray, James T. Bui

Research output: Contribution to journalArticle

13 Scopus citations


Although underdilation of transjugular intrahepatic portosystemic shunt (TIPS) stent grafts is commonly performed to limit complications arising from excessive portosystemic shunting, it is uncertain whether underdilated stents retain their smaller diameter indefinitely or eventually expand to nominal caliber. In this investigation, postprocedure computed tomography (CT) was used to compare diameters of underdilated TIPSs and TIPSs expanded to a nominal diameter of 10 mm in 61 cases. The groups had comparable shunt diameters on post-TIPS imaging (9.8 mm vs 9.9 mm; P = .079), with similar incidences of hepatic encephalopathy (34% vs 20%; P = .372), indicating stent self-expansion over time, and bringing into question the advantages of underdilation for customization of shunt caliber.

Original languageEnglish (US)
Pages (from-to)382-387
Number of pages6
JournalJournal of Vascular and Interventional Radiology
Issue number3
StatePublished - Jan 1 2015
Externally publishedYes


ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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