• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Catheter ablation for atrial fibrosis and inflammation in patients with persistent atrial fibrillation

Research Project

Project/Area Number 18K08036
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionKobe University

Principal Investigator

kiuchi kunihiko  神戸大学, 医学部附属病院, 特命准教授 (50777612)

Co-Investigator(Kenkyū-buntansha) 福沢 公二  神戸大学, 医学研究科, 特命教授 (70535856)
大竹 寛雅  神戸大学, 医学部附属病院, 准教授 (60593803)
佐々木 直人  神戸薬科大学, 薬学部, 准教授 (00514746)
Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords心房細動 / カテーテルアブレーション / LGE-MRI / 心房線維化 / 炎症 / 心房炎症 / LGEMRI / PETMRI / 炎症性単球 / モノサイト / 心房繊維化
Outline of Final Research Achievements

We clearly demonstrated that the inflammatory monocyte was strongly associated with the atrial fibrosis and revealed that both atrial inflammation and fibrosis were associated with the AF progression. Selective radiofrequency application on the atrial fibrosis area by LGE-MRI could reduce the AF recurrence and improve the rhythm outcome after the AF ablation. Furthermore, we demonstrated that the atrial wall thickness was also associated with the AF substrates. We concluded that atrial inflammation, fibrosis, and wall thickness were associated with AF substrates, which has a potential ablation target.

Academic Significance and Societal Importance of the Research Achievements

超高齢化社会を迎えている本邦において高齢者の心不全が急速に増加している。脳卒中循環器病克服5カ年計画おいても心不全は増加しており、今後より一層の対策が必要とされている。高齢者の心房細動は心不全の発症に強く関連している。したがって心房細動に対する強力な洞調律維持は心不全の発症ならびに再増悪を抑制できる。洞調律維持効果は薬物治療よりもカテーテルアブレーションが優れているが、高齢者の持続性心房細動に対するそれは十分とは言えない。我々の発案した心房線維化領域への選択的なカテーテル治療は洞調律維持率を示しており、心不全の発症ならびに再増悪を強力に抑制し健康寿命の延伸に大いに貢献できるものと期待できる。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (27 results)

All 2023 2022 2021 2020 2019 2018 Other

All Journal Article (11 results) (of which Peer Reviewed: 9 results,  Open Access: 3 results) Presentation (15 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results) Remarks (1 results)

  • [Journal Article] The impact of the procedural parameters on the lesion characteristics associated with AF recurrence: Late‐gadolinium enhancement magnetic resonance imaging (LGE‐MRI) analysis2023

    • Author(s)
      Takahara Hiroyuki、Kiuchi Kunihiko、Fukuzawa Koji、Takami Mitsuru、Izawa Yu、Nakamura Toshihiro、Nakasone Kazutaka、Sonoda Yusuke、Yamamoto Kyoko、Suzuki Yuya、Tani Ken‐ichi、Iwai Hidehiro、Nakanishi Yusuke、Shoda Mitsuhiko、Murakami Atsushi、Yonehara Shogo、Negi Noriyuki、Somiya Yuichiro、Hirata Ken‐ichi
    • Journal Title

      Journal of Cardiovascular Electrophysiology

      Volume: 34 Issue: 3 Pages: 527-535

    • DOI

      10.1111/jce.15805

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The impact of the atrial wall thickness in normal/mild late‐gadolinium enhancement areas on atrial fibrillation rotors in persistent atrial fibrillation patients2022

    • Author(s)
      Nakamura Toshihiro、Kiuchi Kunihiko、Fukuzawa Koji、Takami Mitsuru、Watanabe Yoshiaki、Izawa Yu、Takemoto Makoto、Sakai Jun、Yatomi Atsusuke、Sonoda Yusuke、Takahara Hiroyuki、Nakasone Kazutaka、Yamamoto Kyoko、Suzuki Yuya、Tani Ken‐ichi、Negi Noriyuki、Kono Atsushi、Ashihara Takashi、Hirata Ken‐ichi
    • Journal Title

      Journal of Arrhythmia

      Volume: 38 Issue: 2 Pages: 221-231

    • DOI

      10.1002/joa3.12676

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Circulating intermediate monocytes and atrial structural remodeling associated with atrial fibrillation recurrence after catheter ablation2021

    • Author(s)
      Suehiro Hideya、Kiuchi Kunihiko、Fukuzawa Koji、Yoshida Naofumi、Takami Mitsuru、Watanabe Yoshiaki、Izawa Yu、Akita Tomomi、Takemoto Makoto、Sakai Jun、Nakamura Toshihiro、Yatomi Atsusuke、Takahara Hiroyuki、Sonoda Yusuke、Nakasone Kazutaka、Yamamoto Kyoko、Yamashita Tomoya、Hirata Ken‐ichi
    • Journal Title

      Journal of Cardiovascular Electrophysiology

      Volume: 32 Issue: 4 Pages: 1035-1043

    • DOI

      10.1111/jce.14929

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Late‐gadolinium enhancement properties associated with atrial fibrillation rotors in patients with persistent atrial fibrillation2021

    • Author(s)
      Nakamura Toshihiro、Kiuchi Kunihiko、Fukuzawa Koji、Takami Mitsuru、Watanabe Yoshiaki、Izawa Yu、Suehiro Hideya、Akita Tomomi、Takemoto Makoto、Sakai Jun、Yatomi Atsusuke、Sonoda Yusuke、Takahara Hiroyuki、Nakasone Kazutaka、Yamamoto Kyoko、Negi Noriyuki、Kono Atsushi、Ashihara Takashi、Hirata Ken‐ichi
    • Journal Title

      Journal of Cardiovascular Electrophysiology

      Volume: 32 Issue: 4 Pages: 1005-1013

    • DOI

      10.1111/jce.14933

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Feasibility of catheter ablation in patients with persistent atrial fibrillation guided by fragmented late‐gadolinium enhancement areas2021

    • Author(s)
      Kiuchi Kunihiko、Fukuzawa Koji、Takami Mitsuru、Watanabe Yoshiaki、Izawa Yu、Shigeru Mayumi、Oonishi Hiroyuki、Suehiro Hideya、Akita Tomomi、Takemoto Makoto、Yatomi Atsusuke、Nakamura Toshihiro、Sakai Jun、Nakasone Kazutaka、Sonoda Yusuke、Yamamoto Kyoko、Takahara Hiroyuki、Hirata Ken‐ichi
    • Journal Title

      Journal of Cardiovascular Electrophysiology

      Volume: 32 Issue: 4 Pages: 1014-1023

    • DOI

      10.1111/jce.14925

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Lesion characteristics between cryoballoon ablation and radiofrequency ablation with a contact force‐sensing catheter: Late‐gadolinium enhancement magnetic resonance imaging assessment2020

    • Author(s)
      Kurose Jun、Kiuchi Kunihiko、Fukuzawa Koji、Takami Mitsuru、Mori Shumpei、Suehiro Hideya、Nagamatsu Yu‐ichi、Akita Tomomi、Takemoto Makoto、Yatomi Atsusuke、Nakamura Toshihiro、Sakai Jun、Watanabe Yoshiaki、Shimoyama Shinsuke、Negi Noriyuki、Kyotani Katsusuke、Hirata Ken‐ichi
    • Journal Title

      Journal of Cardiovascular Electrophysiology

      Volume: 31 Issue: 10 Pages: 2572-2581

    • DOI

      10.1111/jce.14664

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Circulating intermediate monocytes and toll-like receptor 4 correlate with low-voltage zones in atrial fibrillation2020

    • Author(s)
      Suehiro Hideya、Fukuzawa Koji、Yoshida Naofumi、Kiuchi Kunihiko、Takami Mitsuru、Akita Tomomi、Tabata Tokiko、Takemoto Makoto、Sakai Jun、Nakamura Toshihiro、Yatomi Atsusuke、Takahara Hiroyuki、Sonoda Yusuke、Nakasone Kazutake、Yamamoto Kyoko、Suzuki Atsushi、Yamashita Tomoya、Hirata Ken-ichi
    • Journal Title

      Heart and Vessels

      Volume: 35 Issue: 12 Pages: 1717-1726

    • DOI

      10.1007/s00380-020-01647-4

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Visualization of intensive atrial inflammation and fibrosis after cryoballoon ablation: PET/MRI and LGE‐MRI analysis2020

    • Author(s)
      Kiuchi Kunihiko、Fukuzawa Koji、Nogami Munenobu、Watanabe Yoshiaki、Takami Mitsuru、Izawa Yu、Negi Noriyuki、Kyotani Katsusuke、Mori Shumpei、Hirata Ken‐Ichi
    • Journal Title

      Journal of Arrhythmia

      Volume: 37 Issue: 1 Pages: 52-59

    • DOI

      10.1002/joa3.12454

    • NAID

      120006975811

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Visualization of Inflammation After Cryoballoon Ablation in Atrial Fibrillation Patients ― Protocol for Proof-of-Concept Feasibility Trial ―2019

    • Author(s)
      Kiuchi Kunihiko、Fukuzawa Koji、Nogami Munenobu、Watanabe Yoshiaki、Takami Mitsuru、Mori Shumpei、Shimoyama Shinsuke、Negi Noriyuki、Kyotani Katsusuke、Hirata Ken-ichi
    • Journal Title

      Circulation Reports

      Volume: 1 Issue: 3 Pages: 149-152

    • DOI

      10.1253/circrep.CR-19-0003

    • NAID

      130007609146

    • ISSN
      2434-0790
    • Year and Date
      2019-03-08
    • Related Report
      2020 Research-status Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lesion distribution after cryoballoon ablation and hotballoon ablation: Late‐gadolinium enhancement magnetic resonance imaging analysis2019

    • Author(s)
      Akita Tomomi、Kiuchi Kunihiko、Fukuzawa Koji
    • Journal Title

      Journal of Cardiovascular Electrophysiology

      Volume: 30 Issue: 10 Pages: 1830-1840

    • DOI

      10.1111/jce.14073

    • Related Report
      2019 Research-status Report
  • [Journal Article] Successful modulation of atrial fibrillation drivers anchoring to fibrotic tissue after box isolation using an online real‐time phase mapping system: ExTRa Mapping2019

    • Author(s)
      Nakamura Toshihiro、Kiuchi Kunihiko、Fukuzawa Koji、Takami Mitsuru、Akita Tomomi、Suehiro Hideya、Takemoto Makoto、Sakai Jun、Yatomi Atsusuke、Sonoda Yusuke、Takahara Hiroyuki、Nakasone Kazutaka、Yamamoto Kyoko、Hirata Ken‐ichi、Ashihara Takashi
    • Journal Title

      Journal of Arrhythmia

      Volume: 35 Issue: 5 Pages: 733-736

    • DOI

      10.1002/joa3.12232

    • NAID

      120006733170

    • Related Report
      2019 Research-status Report
  • [Presentation] The impact of procedural factors on the lesion characteristics associated with AF recurrence: late-gadolinium enhancement magnetic resonance imaging (LGE-MRI) analysis2023

    • Author(s)
      髙原 宏之
    • Organizer
      第87回日本循環器学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Feasibility of the holographic computer visualizing threedimensional anatomy on the patients2023

    • Author(s)
      木内 邦彦
    • Organizer
      第87回日本循環器学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] The impact of the radiofrequency application on the patchy LGE sites in patients with persisitent atrial fibrillation2021

    • Author(s)
      kunihiko kiuchi
    • Organizer
      第67回日本不整脈心電学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] The Evaluation of Atrial Tissue Heterogeneity Assessed by LGE-MRI and Novel Real-time Phase Mapping System: ExTRa Mapping in Atrial Fibrillation Patients2021

    • Author(s)
      nakamura toshihiro
    • Organizer
      第67回日本不整脈心電学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] The lesion continuity after pulmonary vein isolation with normal contact force vs high contact force: late-gadolinium enhancement magnetic resonance imaging (LGE-MRI) analysis2021

    • Author(s)
      takahara hiroyuki
    • Organizer
      Heart Rhythm 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Late-gadolinium enhancement properties and atrial voltages of the Fractionated Signal Areas in the Atrial Muscle (FAAM) in atrial fibrillation patients2021

    • Author(s)
      suzuki yuya
    • Organizer
      第86回日本循環器学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] Acute response and rhythm outcome of the patchy late-gadolinium enhancement sites ablation in patients with atrial fibrillation: LGE-MRI analysis2021

    • Author(s)
      kunihiko kiuchi
    • Organizer
      第84回日本循環器学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] The lesion continuity after pulmonary vein isolation with LSI of 5 vs 6: late-gadolinium enhancement magnetic resonance imaging (LGE-MRI) analysis2021

    • Author(s)
      hiroyuki takahara
    • Organizer
      第84回日本循環器学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] The impact of the radiofrequency application on the patchy late-gadolinium enhancement sites in patients with atrial fibrillation: LGE-MRI analysis2020

    • Author(s)
      kunihiko kiuchi
    • Organizer
      第84回日本循環器学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] The Relationship between Fibrotic Areas Assessed by LGE-MRI and Non-Passively Activated Areas Detected by Novel Real-time Phase Mapping System: ExTRa Mapping In Atrial Fibrillation Patients2020

    • Author(s)
      nakamura toshihiro
    • Organizer
      第84回日本循環器学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] Toll-like Receptor 4 Upregulation on Circulating CD14++CD16+monocytes Correlates with the Low-voltage Zones in Patients with Atrial Fibrillation2020

    • Author(s)
      hideya suehiro
    • Organizer
      第84回日本循環器学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] LGE-MRI+ExTRa Mappingガイド下でAF driverを修飾し得た持続性心房細動の一例2019

    • Author(s)
      木内 邦彦
    • Organizer
      カテーテルアブレーション関連秋季大会2019
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] PET, CT, and MRI for atrial fibrillation2019

    • Author(s)
      Kunihiko Kiuchi
    • Organizer
      12th Asia Pacific Heart Rhythm Society Scientific Session
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Feasibility of Imaging Fibrotic Substrates in the Left Atrium using LGE-MRI Technology2019

    • Author(s)
      木内邦彦
    • Organizer
      第83回日本循環器学会学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] LGE-MRI or Delayed Enhancement-MRI in Diagnosis of Arrhythmogenesis2018

    • Author(s)
      木内邦彦
    • Organizer
      Asia Pacific Heart Rhythm Society
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] researchmap

    • URL

      https://researchmap.jp/kunihiko_KIUCHI

    • Related Report
      2021 Research-status Report 2020 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi