Correspondence re: recanalization of an occluded intrahepatic portosystemic covered stent via the percutaneous transhepatic approach.

摘要

Dear Editor:I read the recent Case Report by Drs. Chan and Liang, entitled "Recanalization of an Occluded Intrahepatic Portosystemic Covered Stent via the Percutaneous Transhepatic Approach" (1). I would respectfully suggest that they have overlooked certain predicate literature. In 2002 we published a report describing the demonstrated rapid and reliable thrombosis of transjugular intrahepatic portosystemic shunt (TIPS) created with polyethylene terephthalate covered stent grafts in humans (2); earlier swine animal TIPS work had already demonstrated rapid occlusion (3). Other papers support this as well (4, 5). As a result, I would say that the Wallgraft (Boston Scientific, Narick, MA) or any polyester-based stent grafts are inappropriate and clearly contraindicated for the creation of de novo TIPS in that their patency is far worse than a bare stent.