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Investigation regarding the strategy for severely calcified coronary lesions

Research Project

Project/Area Number 17K09521
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Cardiovascular medicine
Research InstitutionJichi Medical University

Principal Investigator

Sakakura Kenichi  自治医科大学, 医学部, 准教授 (20773310)

Co-Investigator(Kenkyū-buntansha) 百村 伸一  自治医科大学, 医学部, 教授 (10190985)
藤田 英雄  自治医科大学, 医学部, 教授 (70327336)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords虚血性心疾患 / 経皮的冠動脈形成術 / 回転性アテレクトミー / 冠動脈石灰化 / ロータブレーター / 冠動脈高度石灰化
Outline of Final Research Achievements

We invented a novel method regarding rotational atherectomy, which was named as halfway rotational atherectomy. We compared the incidence of complications between halfway rotational atherectomy and conventional rotational atherectomy, and found that there were no severe complications in halfway rotational atherectomy. We investigated the determinants of excessive speed down during rotational atherectomy, and found that ostial right coronary artery lesions were significantly associated with excessive speed down even after controlling confounding factors. We also investigated the incidence of complications between 1.25mm burr and 1.5mm burr when IVUS catheter could not cross the lesion. The incidence of complications was similar between the 2 groups.

Academic Significance and Societal Importance of the Research Achievements

高齢人口の増加に伴い、冠動脈高度石灰化病変はしばしばみられる。一方で、そのカテーテル治療は石灰化が少ない冠動脈病変に比べて難しいことが知られていて、回転性アテレクトミーという高度技術を要するデバイスを必要とすることが多い。回転性アテレクトミーデバイスは高度石灰化病変に対してもダイヤモンドコーティングされたバーで削ることによって良好な成績を上げる一方で、様々な合併症を引き起こすことがしられている。我々の研究成果は回転性アテレクトミーにおける合併症が生じやすい状況を知って、その対処法を明らかにすることであり、これら成果は冠動脈高度石灰化病変への治療をより安全で質の高いものにすることにつながる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2020 2019 2018 2017

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 5 results) Presentation (1 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Association of Excessive Speed Reduction With Clinical Factors During Rotational Atherectomy2020

    • Author(s)
      Sakakura K, Taniguchi Y, Yamamoto K, Wada H, Momomura SI, Fujita H.
    • Journal Title

      Cardiovasc Revasc Med

      Volume: 21 Issue: 3 Pages: 314-319

    • DOI

      10.1016/j.carrev.2019.05.014

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Halfway Rotational Atherectomy for Calcified Lesions: Comparison With Conventional Rotational Atherectomy in a Propensity-Score Matched Analysis2019

    • Author(s)
      Sakakura K, Taniguchi Y, Yamamoto K, Wada H, Momomura SI, Fujita H.
    • Journal Title

      PLoS One

      Volume: 14 Issue: 7 Pages: e0219289-e0219289

    • DOI

      10.1371/journal.pone.0219289

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of Complications With a 1.25-mm Versus a 1.5-mm Burr for Severely Calcified Lesions That Could Not Be Crossed by an Intravascular Ultrasound Catheter2019

    • Author(s)
      Sakakura K, Taniguchi Y, Yamamoto K, Tsukui T, Seguchi M, Wada H, Momomura SI, Fujita H.
    • Journal Title

      Cardiovasc Interv Ther

      Volume: - Issue: 3 Pages: 227-233

    • DOI

      10.1007/s12928-019-00606-9

    • NAID

      40022282980

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Intentional switch between 1.5-mm and 1.25-mm burrs along with switch between rotawire floppy and extra-support for an uncrossable calcified coronary lesion.2019

    • Author(s)
      Taniguchi Y, Sakakura K, Mukai Y, Yamamoto K, Momomura S, Fujita H.
    • Journal Title

      Journal of Cardiology Cases

      Volume: - Issue: 6 Pages: 200-203

    • DOI

      10.1016/j.jccase.2019.02.005

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Trapping Balloon Technique for Removal of the Burr in Rotational Atherectomy2018

    • Author(s)
      Yamamoto K, Sakakura K, Taniguchi Y, Tsurumaki Y, Wada H, Momomura SI, Fujita H.
    • Journal Title

      International Heart Journal

      Volume: 59 Issue: 2 Pages: 399-402

    • DOI

      10.1536/ihj.17-359

    • NAID

      130006588973

    • ISSN
      1349-2365, 1349-3299
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Intravascular ultrasound enhances the safety of rotational atherectomy2018

    • Author(s)
      Sakakura K, Yamamoto K, Taniguchi Y, Tsurumaki Y, Momomura SI, Fujita H.
    • Journal Title

      Cardiovascular Revascularization Medicine

      Volume: 19 Issue: 3 Pages: 286-291

    • DOI

      10.1016/j.carrev.2017.09.012

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Successful Removal of an Entrapped Rotational Atherectomy Burr Using a Soft Guide Extension Catheter.2017

    • Author(s)
      Sakakura K, Taniguchi Y, Tsukui T, Yamamoto K, Momomura SI, Fujita H.
    • Journal Title

      JACC Cardiovascular Interventions

      Volume: 10 Issue: 24 Pages: e227-e229

    • DOI

      10.1016/j.jcin.2017.09.036

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Halfway Rotational Atherectomy in Severely Calcified Coronary Lesions2019

    • Author(s)
      Kenichi Sakakura
    • Organizer
      Transcatheter Cardiovascular Therapeutics (TCT) 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2017-04-28   Modified: 2021-02-19  

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