1. Articles from Hayato Shimizu

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    1. A case of severely calcified neoatherosclerosis-embedded stent struts clearly documented with optical coherence tomography imaging

      A case of severely calcified neoatherosclerosis-embedded stent struts clearly documented with optical coherence tomography imaging

      A 65-year-old Japanese man using peritoneal hemodialysis due to diabetic nephropathy underwent a planned coronary angiography as a preoperative examination. Fourteen years earlier, he had undergone a percutaneous coronary intervention due to acute myocardial infarction and had been implanted with a bare-metal stent in the left anterior descending coronary artery. Although his condition had run a benign course without any recurrence of cardiovascular events, coronary angiography was performed 14 years later in preparation for a living-donor kidney transplantation. Coronary angiography revealed less than 50% restenosis (Figure A). Although Figure B indicates circumferentially covered stent struts, the homogeneous neointima pattern observed ...

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    2. Multiple Inter-strut Hollow, a Unique Finding of Optical Coherence Tomography After Sirolimus Eluting Stent Implantation: The Prevalence and Clinical Characteristics

      Multiple Inter-strut Hollow, a Unique Finding of Optical Coherence Tomography After Sirolimus Eluting Stent Implantation: The Prevalence and Clinical Characteristics
      Background: It has been reported that Optical Coherence Tomography (OCT) revealed cavities formation between and outside of the stent strut, Multiple Inter-strut Hollow (MIH) after Sirorimus eluting stent (SES) implantation. However, the incidence and the clinical characteristics of MIH are unknown. Methods: We analyzed the findings of OCT, in 60 cases with in-stent restenosis (ISR) after SES (n=52) and bare metal stent (BMS) (n=8) implantation. MIH was defined as multiple cavity formation which maximum depth was over 0.3mm between and outside of the stent strut in OCT. Furthermore, we examined the relation between the maximum depth of ...
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    1-2 of 2
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  2. Topics in the News

    1. (1 articles) Jichi Medical University
    2. (1 articles) Kazushige Kadota
    3. (1 articles) Hiroyuki Yamamoto
    4. (1 articles) Hiroyuki Tanaka
    5. (1 articles) Shingo Hosogi
    6. (1 articles) Yasushi Fuku
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