1. Effect of cutting balloon after rotational atherectomy in severely calcified coronary artery lesions as assessed by optical coherence tomography

    Effect of cutting balloon after rotational atherectomy in severely calcified coronary artery lesions as assessed by optical coherence tomography

    Objectives Using optical coherence tomography (OCT), we evaluated the effect of a cutting balloon (CB) compared with a conventional balloon after rotational atherectomy (RA) and before stenting in severely calcified coronary lesions. Background A CB is designed to create discrete incisions to facilitate fracture of severely calcified plaque. Methods OCT was performed preintervention (if possible), post‐RA, and poststent implantation. RA modification of calcium was defined as a polished, concave, round‐shaped surface. Calcium fracture was defined as a break in the calcium plate. The effects of calcium modification and stent expansion between CB ( n  = 18) versus conventional balloon ( n ...

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