Key result
IVUS detects severe stent underexpansion and crimping missed by angiography in ostial RCA restenosis.
Why the study?
Restenosis of sirolimus drug-eluting stents in the aorto-ostial right coronary artery due to severe crimping and underexpansion in heavily calcified areas requires further understanding for management.
Key points are not available for this paper at this time.
Population
Single patient with restenosis of sirolimus drug-eluting stent in proximal right coronary artery
Design
Case report
IVUS may detect underexpansion causing aorto-ostial DES restenosis missed by angiography; leaves optimal management open.
We present a case of restenosis of a sirolimus drug-eluting stent in the ostium of the right coronary artery due to severe crimping and underexpansion of the stent in an area of heavy calcification, detected by intracoronary ultrasound but not by angiography. We discuss issues relevant to management of the restenotic drug-eluting stent in the aorto-ostial location.
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Applegate et al. (2006) studied this question. Intracoronary ultrasound, but not angiography, detected severe crimping and underexpansion causing restenosis of a sirolimus drug-eluting stent in a heavily calcified right coronary ostium.
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