1. Articles from Jaryl Ng

    1-4 of 4
    1. Very late scaffold thrombosis: insights from optical coherence tomography and histopathology

      Very late scaffold thrombosis: insights from optical coherence tomography and histopathology

      A 79-year-old male patient had a 2.5×12 mm bioresorbable vascular scaffold (Absorb™ BVS; Abbott Vascular, Santa Clara, CA, USA) implanted in the setting of the RIBS VI study protocol for in-stent restenosis of a 3×9 mm bare metal stent (AVE S670; Medtronic, Minneapolis, MN, USA) in January 2015, at which time point the patient presented with stable angina and positive exercise stress test (index procedure). The Absorb BVS was implanted with predilatation at 20 atmospheres (atm) accompanied by post-dilatation with a non-compliant balloon (2.5×10 mm) at 26 atm. The patient was maintained on dual antiplatelet ...

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    2. Very Late Scaffold Thrombosis: Insights from Optical Coherence Tomography and Histopathology

      Very Late Scaffold Thrombosis: Insights from Optical Coherence Tomography and Histopathology

      Aims: to investigate and understand the mechanisms of very late scaffold thrombosis 13 months following implantation in the setting of bare metal in-stent restenosis. Methods and results: we collected consecutive angiography, optical coherence tomography and full autopsy evaluation in a 79-year old patients presenting with cardiogenic shock and undergoing rescue PCI after suffering very late scaffold thrombosis. Combined assessment of angiography, optical coherence tomography and histopathology revealed heterogenous vascular healing 13 months following implantation of a bioresorbable vascular scaffold with presence of scaffold struts fully integrated into neointimal tissue while others remained uncovered and malapposed. Furthermore, plaque rupture within the ...

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    3. Serial 5-Year Evaluation of Side Branches Jailed by Bioresorbable Vascular Scaffolds Using 3-Dimensional Optical Coherence Tomography

      Serial 5-Year Evaluation of Side Branches Jailed by Bioresorbable Vascular Scaffolds Using 3-Dimensional Optical Coherence Tomography

      Background— The long-term fate of Absorb bioresorbable vascular scaffold (Abbott Vascular, Santa Clara, CA) struts jailing side branch ostia has not been clarified. We therefore evaluate serially (post-procedure and at 6 months, 1, 2, 3, and 5 years) the appearance and fate of jailed Absorb bioresorbable vascular scaffold struts. Methods and Results— We performed 3-dimensional optical coherence tomographic analysis of the ABSORB Cohort B trial (A Clinical Evaluation of the Bioabsorbable Everolimus Eluting Coronary Stent System in the Treatment of Patients With De Novo Native Coronary Artery Lesions) up to 5 years using a novel, validated cut-plane analysis method. We ...

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    4. Early coverage of drug-eluting stents analysed by optical coherence tomography: evidence of the impact of stent apposition and strut characteristics on the neointimal healing process

      Early coverage of drug-eluting stents analysed by optical coherence tomography: evidence of the impact of stent apposition and strut characteristics on the neointimal healing process

      Aims: Previous studies have associated issues such as incomplete stent apposition with delayed healing and adverse events (stent thrombosis). The aim of this study was to evaluate the impact of strut apposition and stent type on the progression of stent strut coverage. Methods and results: We evaluated in vivo in porcine models the follow-up response and coverage characteristics of well-apposed and malapposed segments of drug-eluting stents (DES) (CYPHER, PROMUS Element and Orsiro) and the Absorb bioresorbable vascular scaffold (BVS) by optical coherence tomography (OCT) sequentially, at baseline, and at one week and four weeks of follow-up. Supporting results were provided ...

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    1-4 of 4
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  2. Topics in the News

    1. (4 articles) Nicolas Foin
    2. (2 articles) Technical University of Munich
    3. (2 articles) Fernando Alfonso
    4. (2 articles) Michael Joner
    5. (1 articles) University College London
    6. (1 articles) John A. Ormiston
    7. (1 articles) Patrick W. Serruys
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    Early coverage of drug-eluting stents analysed by optical coherence tomography: evidence of the impact of stent apposition and strut characteristics on the neointimal healing process Serial 5-Year Evaluation of Side Branches Jailed by Bioresorbable Vascular Scaffolds Using 3-Dimensional Optical Coherence Tomography Very Late Scaffold Thrombosis: Insights from Optical Coherence Tomography and Histopathology Very late scaffold thrombosis: insights from optical coherence tomography and histopathology Comparative study between intravitreal ranibizumab and triamcinolone treatment of diabetic macular edema as regard to optical coherence tomography changes and visual acuity What’s New in Optical Coherence Tomography Angiography for Glaucoma (Book Chapter) Looking into the Future: Optical Coherence Tomography for the Assessment of Cardiac Allograft Vasculopathy Effects of Age on Peripapillary and Macular Vessel Density Determined Using Optical Coherence Tomography Angiography in Healthy Eyes Deep Neural Network Regression for Automated Retinal Layer Segmentation in Optical Coherence Tomography Images In-Stent Restenosis Lesion Morphology Related to Repeat Stenting Underexpansion as Evaluated by Optical Coherence Tomography Measurement of granule layer thickness in a spouted bed coating process via optical coherence tomography Angiography and optical coherence tomography assessment of the drug-coated balloon ESSENTIAL for the treatment of in-stent restenosis