Author/Authors :
Jerzy and Kalinczuk، نويسنده , , Lukasz and Pregowski، نويسنده , , Jerzy and Mintz، نويسنده , , Gary S. and Dilcher، نويسنده , , Christian E. and Kotani، نويسنده , , Jun-ichi and Kruk، نويسنده , , Mariusz and Shah، نويسنده , , Vivek M. and Canos، نويسنده , , Daniel A. and Chan، نويسنده , , Rosana C. and Weissman، نويسنده , , Neil J.، نويسنده ,
Abstract :
Late stent malapposition is a potential complication of intracoronary brachytherapy. The aim of our study was to determine the incidence and mechanism of late stent malapposition after implantation of phosphorus-32 radioactive stents. We analyzed 159 patients for de novo lesions after the implantation of phosphorus-32 radioactive stents. There were 15 late stent malappositions. The incidence of malapposition was higher in patients who received Hot-Ends Isostents. External elastic membrane expansion greater than plaque increase in malapposed segments was observed. Late stent malapposition is caused by a localized increase in external elastic membrane that is greater than the increase in plaque area; this is believed to be a dose-dependent phenomenon because it was more common with Hot-Ends Isostents.
