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  • Title: Ostial left circumflex lesion with calcified nodule successfully treated with excimer laser coronary atherectomy and drug-coated balloon.
    Author: Matsuda Y, Ashikaga T, Sasaoka T, Hatano Y, Umemoto T, Lee T, Yonetsu T, Maejima Y, Sasano T.
    Journal: J Cardiol Cases; 2020 Jul; 22(1):32-35. PubMed ID: 32636967.
    Abstract:
    Stenting for severely calcified lesions has a higher risk of stent restenosis or stent failure than stenting for lesions without calcification, and stenting for complex lesions including ostial or bifurcation lesions sometimes causes plaque shift which leads to side branch occlusion. A calcified nodule (CN) is considered one of the culprits for stable angina or acute coronary syndrome. However, the optimal strategy for this lesion is not well clarified. We report a patient who presented stable angina with a CN at the ostial left circumflex artery. In this case, pretreatment with excimer laser coronary atherectomy (ELCA) and scoring balloon dilatation followed by drug-coated balloon (DCB) dilatation successfully prevented plaque shift caused by stenting in the acute phase. In addition, it also maintained the patency in the late phase. Furthermore, we observed the CN lesions at preprocedural, postprocedural, and late phase by optical coherence tomography. ELCA, which has a unique debulking technique, and scoring balloon dilatation followed by DCB dilatation might offer an alternative treatment for ostial CN lesions instead of stenting. 〈Learning objective: The optimal strategy for severely calcified lesions with calcified nodule is controversial because the prevalence of calcified nodule is rare and stent failure is more common in calcified lesions. In particular, regarding a calcified nodule located in ostial left circumflex coronary artery lesion, excimer laser coronary atherectomy and scoring balloon dilatation followed by drug-coated balloon may give an alternative treatment to avoid stenting.〉.
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