Circulation Journal
Online ISSN : 1347-4820
Print ISSN : 1346-9843
ISSN-L : 1346-9843
Case Report
Heavily Calcified Coronary Lesions Preclude Strut Apposition Despite High Pressure Balloon Dilatation and Rotational Atherectomy
In-Vivo Demonstration With Optical Coherence Tomography
Jun TanigawaPeter BarlisCarlo Di Mario
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2008 Volume 72 Issue 1 Pages 157-160

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Abstract

Heavily calcified lesions (HCL) continue to present challenges that are not always solved by modern low-profile, non-compliant high-pressure balloons, or bladed balloons. Uncrossable or unexpandable lesions need lesion modification, using ablating devices such as rotational atherectomy. Three cases of HCL treated with drug-eluting stents, using a new intravascular imaging device, Optical Coherence Tomography with 10-fold superior resolution and fewer artifacts compared with conventional intravascular ultrasound, are presented. Insights from using this highly sensitive imaging technique outline the high prevalence of persistent stent strut malapposition in this group, despite the use of high-pressure dilatation or rotational atherectomy. (Circ J 2008; 72: 157 - 160)

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© 2008 THE JAPANESE CIRCULATION SOCIETY
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