1. Articles from Kenji Ando

    1-6 of 6
    1. Impact of lesion complexity on long-term vascular response to cobalt–chromium everolimus-eluting stent: five-year follow-up optical coherence tomography study

      Impact of lesion complexity on long-term vascular response to cobalt–chromium everolimus-eluting stent: five-year follow-up optical coherence tomography study

      The impact of lesion complexity on long-term vascular response to cobalt–chromium everolimus-eluting stent (CoCrEES) remains unclear. We sought to evaluate them using optical coherence tomography (OCT). A total of 47 patients with 58 lesions treated only with CoCrEES and no target-vessel events within 5 years after implantation were prospectively enrolled and underwent 5-year follow-up OCT. Quantitative parameters and qualitative characteristics of the neointima were evaluated using multilevel logistic or linear regression models with random effects at three levels: lesion, cross-section (CS), and strut. According to the lesion complexity, the lesions were classified into the two groups: the complex lesion ...

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    2. Two-year clinical, angiographic, and serial optical coherence tomographic follow-up after implantation of an everolimus-eluting bioresorbable scaffold and an everolimus-eluting metallic stent: insights from the randomised ABSORB Japan trial

      Two-year clinical, angiographic, and serial optical coherence tomographic follow-up after implantation of an everolimus-eluting bioresorbable scaffold and an everolimus-eluting metallic stent: insights from the randomised ABSORB Japan trial

      Aims: We sought to investigate two-year clinical and serial optical coherence tomography (OCT) outcomes after implantation of a fully bioresorbable vascular scaffold (BVS) or a cobalt-chromium everolimus-eluting stent (CoCr-EES). Methods and results: In the ABSORB Japan trial, 400 patients were randomised in a 2:1 ratio to BVS (N=266) or CoCr-EES (N=134). A pre-specified OCT subgroup (N=125, OCT-1 group) underwent angiography and OCT post procedure and at two years. Overall, the two-year TLF rates were 7.3% and 3.8% in the BVS and CoCr-EES arms (p=0.18), respectively. Very late scaffold thrombosis (VLST) beyond one ...

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    3. Usefulness of rotational atherectomy with optical frequency domain imaging guidance for severe calcified coronary lesions after Kawasaki disease

      Usefulness of rotational atherectomy with optical frequency domain imaging guidance for severe calcified coronary lesions after Kawasaki disease

      A 40-year-old man was referred to our hospital for the treatment of severe calcified coronary lesions of right coronary artery due to Kawasaki disease. He had a past history of early stent thrombosis after drug-eluting stent implantation for acute myocardial infarction at the left anterior descending artery, regardless of continued dual antiplatelet therapy and no stent malapposition and underexpansion. We performed rotational atherectomy and plain balloon angioplasty with optical frequency domain imaging guidance, and obtained an excellent initial result without stent implantation, which was maintained during the 1-year follow-up.

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    4. Vascular response to bioresorbable polymer sirolimus-eluting stent vs. permanent polymer everolimus-eluting stent at 9-month follow-up: an optical coherence tomography sub-study from the CENTURY II trial

      Vascular response to bioresorbable polymer sirolimus-eluting stent vs. permanent polymer everolimus-eluting stent at 9-month follow-up: an optical coherence tomography sub-study from the CENTURY II trial

      Aims The Ultimaster bioresorbable polymer sirolimus-eluting stent (BP-SES) is a newly developed drug-eluting stent (DES) that consists of a thin-strut, cobalt chromium with bioresorbable polymer coated only albuminally. We sought to compare tissue coverage in coronary lesions treated with BP-SES with the XIENCE permanent polymer everolimus-eluting stent (PP-EES) using optical coherence tomography (OCT). Methods and results A total of 36 patients participated in the CENTURY II trial in our institution and were randomly assigned to BP-SES ( n = 15) and PP-EES ( n = 21). Of these, 27 patients (13 BP-SES and 14 PP-EES) underwent OCT at 9-month follow-up. Tissue coverage and apposition ...

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    5. Vascular Response After Zilver PTX Stent Implantation for Superficial Femoral Artery Lesions Serial Optical Coherence Tomography Findings at 6 and 12 Months

      Vascular Response After Zilver PTX Stent Implantation for Superficial Femoral Artery Lesions Serial Optical Coherence Tomography Findings at 6 and 12 Months

      Purpose: To compare the vascular response after paclitaxel-coated nitinol drug-eluting stent (Zilver PTX) implantation for superficial femoral artery lesions after 6 and 12 months using optical coherence tomography (OCT). Methods: Serial OCT examinations were performed in 5 patients (4 men; mean age 78.4±6.8 years) with 9 Zilver PTX stents at 6- and 12-month follow-up. Variables evaluated included neointimal thickness and apposition on each strut, the incidence of extrastent lumen (ESL), peristrut low-intensity area (PLIA), and neovascularization at 1-mm intervals. Results: A total of 249 matched cross-section images were evaluated and included 4788 and 4826 struts at 6 ...

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    6. Long-term coronary arterial response to biodegradable polymer biolimus-eluting stents in comparison with durable polymer sirolimus-eluting stents and bare-metal stents: Five-year follow-up optical coherence tomography study

      Long-term coronary arterial response to biodegradable polymer biolimus-eluting stents in comparison with durable polymer sirolimus-eluting stents and bare-metal stents: Five-year follow-up optical coherence tomography study

      Objective The long-term coronary arterial response of biodegradable polymer biolimus-eluting stents (BES) remains unclear. We sought to evaluate the coronary arterial response of biodegradable polymer BES at 5 years after stent implantation using optical coherence tomography (OCT) as compared with that of durable polymer sirolimus-eluting stents (SES) and bare-metal stents (BMS). Methods Five-year follow-up OCT was performed in 30 patients with 33 stents (10 with 12 BES; 10 with 11 SES; 10 with 10 BMS). Quantitative parameters and qualitative characteristics of the neointima were evaluated. A total of 5178 struts (BES, n=2056; SES, n=1410; BMS, n=1712) were ...

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    1-6 of 6
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    1. (1 articles) University of Tsukuba
    2. (1 articles) Erasmus University
    3. (1 articles) Gregg W. Stone
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    5. (1 articles) Yoshinobu Onuma
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    Long-term coronary arterial response to biodegradable polymer biolimus-eluting stents in comparison with durable polymer sirolimus-eluting stents and bare-metal stents: Five-year follow-up optical coherence tomography study Vascular Response After Zilver PTX Stent Implantation for Superficial Femoral Artery Lesions Serial Optical Coherence Tomography Findings at 6 and 12 Months Vascular response to bioresorbable polymer sirolimus-eluting stent vs. permanent polymer everolimus-eluting stent at 9-month follow-up: an optical coherence tomography sub-study from the CENTURY II trial Usefulness of rotational atherectomy with optical frequency domain imaging guidance for severe calcified coronary lesions after Kawasaki disease Two-year clinical, angiographic, and serial optical coherence tomographic follow-up after implantation of an everolimus-eluting bioresorbable scaffold and an everolimus-eluting metallic stent: insights from the randomised ABSORB Japan trial Impact of lesion complexity on long-term vascular response to cobalt–chromium everolimus-eluting stent: five-year follow-up optical coherence tomography study Duke University Engineering Professor Sina Farsiu Elected Fellow of the IEEE PhotoniCare Takes First Place at the 2019 HealthTECH Startup Competition Close Assessment and Testing for Chronic Graft Versus Host Disease, CATCH Study GaAs-Based InPBi Quantum Dots for High Efficiency Super-Luminescence Diodes Pearls and Pitfalls of Optical Coherence Tomography Angiography Image Interpretation Novel optical coherence tomography findings in idiopathic choroidal folds