Intravascular ultrasound characterization of the "black hole" phenomenon after drug-eluting stent implantation

被引:23
作者
Costa, MA [1 ]
Sabate, M
Angiolillo, DJ
Jimenez-Quevedo, P
Teirstein, P
Carter, A
Leon, MB
Moses, J
Zenni, M
Yakubov, S
Guzman, LA
Gilmore, P
Macaya, C
Bass, TA
机构
[1] Univ Florida, Cardiovasc Imaging Core Labs, Shands Jacksonville, FL USA
[2] Univ Florida, Div Cardiol, Shands Jacksonville, FL USA
[3] Hosp Clin San Carlos, Madrid, Spain
[4] Scripps Clin, La Jolla, CA USA
[5] Borgess Med Ctr, Kalamazoo, MI USA
[6] Columbia Univ, Med Ctr, New York, NY USA
[7] Riverside Methodist Hosp, Columbus, OH 43214 USA
关键词
D O I
10.1016/j.amjcard.2005.07.136
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
An intraluminal echolucent tissue, dubbed "black hole," has been identified by intravascular ultrasonography after intracoronary brachytherapy. This study reports the characteristics and incidence of the black hole in patients treated with drug-eluting stent implantation using a sirolimus-eluting stent (SES). We included intravascular ultrasound data from the Compassionate Use of Sirolimus-Eluting Stent (SECURE, n = 61 lesions) registry, a study involving patients in whom previous brachytherapy had failed, and the DIABETES trial (n = 165 lesions), a multicenter, randomized study comparing SES versus bare metal stents in diabetic patients. Intravascular ultrasound follow-up was scheduled at 8 months (SECURE trial, post-brachytherapy population) and 9 months (DIABETES trial). In the SECURE population, a black hole was observed in 10 patients (19.6%). Seven black hole segments had significant intimal hyperplasia (>10%). A black hole accounted for 27% of total intraluminal tissue. In the DIABETES trial, 2 patients (2.5%) in the SES group and none in the bare metal stent group showed echolucent intimal hyperplasia. In conclusion, a black hole occurred frequently after implantation of a SES in patients in whom intracoronary brachytherapy had previously failed. Black holes were also identified in a nonirradiated population, although the incidence was lower than in the post- brachytherapy patients. Bare metal stents were not associated with this phenomenon. (C) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码:203 / 206
页数:4
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