title: Complete fracture of sirolimus-eluting stent in a saphenous vein graft to left anterior descending artery.
abstract: Coronary stent fractures have been suggested as a potential new mechanism of restenosis. The mechanical properties of stents were designed not only to prevent vessel recoil, but also to resist the mechanical stress of vessel movement over millions of cardiac cycles. We present a case in which mechanical stress may have contributed to the fracture of a stent implanted in a saphenous vein graft (SVG) to the left coronary artery. The patient was admitted due to chest pain 2 years after receiving a coronary artery bypass graft. A coronary angiography revealed the culprit vessel to be the SVG to the left coronary artery. The graft was stenosed and was stented with a sirolimus-eluting stent. A 6-month follow-up coronary angiography revealed 80% in-stent restenosis with stent fracture. We re-intervened by balloon angioplasty. This is the first report of sirolimus-eluting stent fracture combined with restenosis of SVG in Korea.
authors: Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Sun Hong
authors: SH
authors: Yoo
authors: Seung Won
authors: SW
authors: Jin
authors: Sung Ho
authors: SH
authors: Her
authors: Hee Jeoung
authors: HJ
authors: Yoon
authors: Hyoung Doo
authors: HD
authors: Kim
authors: Yun Sun
authors: YS
authors: Im
authors: Ki Bae
authors: KB
authors: Seung
authors: Jae Hyung
authors: JH
authors: Kim