Impact of lesion angle on optical coherence tomography findings and clinical outcomes after drug-eluting stent implantat
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ORIGINAL PAPER
Impact of lesion angle on optical coherence tomography findings and clinical outcomes after drug‑eluting stent implantation in curved vessels Shun Nakamura1 · Shigeki Kimura1 · Shun Nakagama1 · Toru Misawa1 · Masafumi Mizusawa1 · Kazuto Hayasaka1 · Yosuke Yamakami1 · Keisuke Kojima1 · Yuichiro Sagawa1 · Keiichi Hishikari1 · Hiroyuki Hikita1 · Atsushi Takahashi1 · Kenzo Hirao2 Received: 14 March 2019 / Accepted: 24 July 2019 © Springer Nature B.V. 2019
Abstract Tortuous coronary lesions are associated with adverse outcomes after implantation of bare metal or first-generation drugeluting stents (DESs). We investigated the impact of lesion angle on vessel wall injuries and stent apposition as assessed by optical coherence tomography (OCT) after second- and newer-generation DES implantation. We investigated 95 de novo lesions treated with a single DES (62 platinum-chromium everolimus-eluting stents and 33 bioresorbable-polymer sirolimus-eluting stents). Post-intervention OCT findings were compared between angled lesions (≥ 45°; n = 33) and nonangled lesions (
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