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J Vasc Interv Radiol. 2015 Mar;26(3):382-7. doi: 10.1016/j.jvir.2014.08.012.

Should transjugular intrahepatic portosystemic shunt stent grafts be underdilated?

Author information

1
Department of Radiology and Division of Interventional Radiology, University of Illinois Hospital and Health Sciences System, 1740 W. Taylor St., MC 931, Chicago IL 60612. Electronic address: rgaba@uic.edu.
2
University of Illinois College of Medicine, University of Illinois Hospital and Health Sciences System, 1740 W. Taylor St., MC 931, Chicago IL 60612.
3
Department of Radiology and Division of Interventional Radiology, University of Illinois Hospital and Health Sciences System, 1740 W. Taylor St., MC 931, Chicago IL 60612.

Abstract

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.

PMID:
25735521
DOI:
10.1016/j.jvir.2014.08.012
[Indexed for MEDLINE]

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