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

Research for effects of corroboration with apex sparing left ventricular repair surgery and hepatic growth factor using delivery sheet

Research Project

Project/Area Number 15390410
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Thoracic surgery
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

NISHINA Takeshi  Kyoto University, Cardiovascular Surgery, Lecturer, 医学研究科, 講師 (30314214)

Co-Investigator(Kenkyū-buntansha) SUGA Hiroyuki  National Cardiovascular Center, Research Section, Chief, 所長 (90014117)
KOMEDA Masashi  Kyoto University, Cardiovascular Surgery, Professor, 医学研究科, 教授 (20303810)
Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥10,600,000 (Direct Cost: ¥10,600,000)
Fiscal Year 2005: ¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2004: ¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2003: ¥3,700,000 (Direct Cost: ¥3,700,000)
KeywordsCardiomyopathy / Dilated Cardiomyopathy / LV repair surgery / Heart Failure / Hepatic Growth Factor / Surgical Treatment / 心尖部温存左室形成術
Research Abstract

Background : We reported that the postoperative effects of left ventricular repair surgery (LVRS) and the initial effects were not long lasting. Hepatic growth factor was well known that facilitate an angiogenesis and has suppression of fibrosis. We estimated the effect of combine treatment both method.
(1)Clinical estimation : From April 2003 to march 2005, Thirty-nine patients were performed LVRS. Left ventricular dimension (LVDd) significantly decreased and EF significantly improved after LVRS. Left ventricular (LV) apex was played important role to keep LV function. These patients were divided into 2 groups. One group was LV apex sparing group (AS Group) and other one was LV apex maneuvering group (AM Group). LV end diastolic dimension in AS Group was smaller than in AM Group. Fractional area change (FAC) in SP Group was larger than in AM Group. LV shape in AS Group was more elliptical than in AM Group.
(2) Experimental study for HGF : This study was used rat model that was made heart failure with myosin antibody. These rats were divided into 2 groups with HGF delivery Group (HGF Group) and Sham Group after LVR. In HGF delivery Group, LVDd was significantly decreased, and EF and FAC were significantly improved by LVR. The fibrosis area in HGF Group was smaller than in Sham Group. Both of the concentration of Aldosterone and the expression of Bax/Bcl-2 significant suppressed in HGF Group.
Conclusion : LV apex sparing LVR improved LV function. HGF delivery suppressed a fibrosis and an apoptosis on cardiac muscle. The combined treatment with LVR and HGF may be more effective for chronic heart failure patients.

Report

(4 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (9 results)

All 2006 2005 2004 Other

All Journal Article (7 results) Publications (2 results)

  • [Journal Article] Chymase inhibition prevents cardiac fibrosis and dysfunction after myocardial infarction in rats2006

    • Author(s)
      H Kanemitsu
    • Journal Title

      Hypertens Res 29

      Pages: 57-64

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Early and midterm results of left ventricular volume reduction surgery for dilated cardiomyopathy2005

    • Author(s)
      T Koyama
    • Journal Title

      J of Card Surg 20(6)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 低心機能虚血性心疾患に対する外科治療2005

    • Author(s)
      仁科 健
    • Journal Title

      日本冠疾患学会誌 11(3)

      Pages: 116-119

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Surgical treatment for Ischemic heart disease with low left ventricular function2005

    • Author(s)
      T Nishina
    • Journal Title

      J Jap Coron Assoc 11

      Pages: 116-119

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 低心機能虚血性心疾患に対する外科治療2005

    • Author(s)
      仁科 健, 大野暢久, 金光ひでお, 小山忠明, 榊原 裕, 根本慎太郎, 池田 義, 米田正始
    • Journal Title

      日本冠疾患学会誌 11(3)

      Pages: 116-119

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Early and midterm results of left ventricular volume reduction surgery for dilated cardiomyopathy2005

    • Author(s)
      T Koyama, T Nishina, N Ohno, Y Sakakibara, S Nemoto, T Ikeda, M Komeda
    • Journal Title

      J of Card Surg 20

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Aterial natriuretic peptide helps prevent late remodering after left ventricular aneurysm repair2004

    • Author(s)
      H Tsuneyoshi
    • Journal Title

      Circulation 110

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Publications] Koyama T, Komeda M, et al.: "Importance of preserving the apex and plication of the base in left ventricular volume reduction surgery"Journal of Thoracic and Cardiovascular Surgery. 125. 669-677 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Sakakibara Y, Komda M et al.: "Toward surgical angiogenesis using slow-released basic fibroblast growth factor"Eur J Cardiothorac Surg. 24. 105-111 (2003)

    • Related Report
      2003 Annual Research Report

URL: 

Published: 2003-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi