Publications by authors named "K Yasumura"

Objectives: We aim to describe the step-by-step optical coherence tomography-guided rotational atherectomy and intravascular lithotripsy for treating substantial coronary calcified nodules.

Key Steps: These include initial rotational atherectomy with a 1.5-mm burr, multiple optical coherence tomography imaging studies to assess lesion morphology, upsizing the rotational burr to 2.

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Article Synopsis
  • The study evaluates the effectiveness and safety of three calcium modification techniques—rotational atherectomy (RA), orbital atherectomy (OA), and intravascular lithotripsy (IVL)—for treating coronary calcified nodules (CN) with the help of optical coherence tomography (OCT).
  • Among 154 patients examined, the results showed no significant difference in the minimal stent area (MSA) or the incidence of target vessel failure (TVF) after one year across the three techniques. RA had an MSA of 6.23 mm², OA 5.75 mm², and IVL 6.24 mm². The one-year TVF rates were also similar
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Article Synopsis
  • Calcific coronary artery stenosis is a serious heart disease that makes it hard for doctors to treat because of hard calcium build-up in the arteries.
  • New methods are being developed to improve the treatment by focusing on how to prepare and take care of these hard spots in the heart.
  • This review looks at the best ways to diagnose and treat this disease, including new imaging techniques and updated methods for doctors to help patients better.
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