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Influences of Mid-to-Long Term Nonpulsatile Circulation on Function and Structure of the Living Body

Research Project

Project/Area Number 10470280
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section一般
Research Field Thoracic surgery
Research InstitutionNational Cardiovascular Center

Principal Investigator

TAENAKA Yoshiyuki  National Cardiovascular Center, Department of Artificial Organs, Director, 人工臓器部, 部長 (00142183)

Co-Investigator(Kenkyū-buntansha) TAKEWA Yoshiaki  National Cardiovascular Center, Department of Artificial Organs, Senior Staff, 人工臓器部, 室長 (20332405)
TATSUMI Eisuke  National Cardiovascular Center, Department of Artificial Organs, Senior Staff, 人工臓器部, 室長 (00216996)
TSUKIYA Tomonori  National Cardiovascular Center, Department of Artificial Organs, Staff, 人工臓器部, 室員 (00311449)
TAKANO Hisateru  National Cardiovascular Center, Vice Director, 研究所, 副所長 (60028595)
中村 真人  東京医科歯科大学, 助教授 (90301803)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥6,400,000 (Direct Cost: ¥6,400,000)
Fiscal Year 2000: ¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1999: ¥4,100,000 (Direct Cost: ¥4,100,000)
Keywordsnonpulsatile circulation / Aorta / Circulatory control / Circadian rhythm / Chronomedicine / Vascular tonus / Autonomic nerve / Peripheral vessels / 人工心臓 / 生体適合化 / 血液破壊 / 流れの可視化 / 数値解析法 / 血栓形成 / 解剖学的適合性 / 電磁波 / 人工循環 / 無拍動流循環 / 循環調節 / 血管トーヌス / 血管収縮性 / 末梢循環
Research Abstract

Influences of mid-to-long term nonpulsatile circulation on function and structure of the living body were investigated especially in systemic circulation. Systemic vascular resistance was slightly decreased but other hemodynamics, peripheral organ, circulation, tissue metabolism and humoral circulatory control were not affected. Vascular tonus was maintained although constrictive function of the vascular system was reduced. Autonomic nervous sytem was also investigated. Circadian rhythm was well maintained except for rennin rhythm. Aortic wall thickness was reduced and atrophic changes of the wall smooth muscle cell was observed. Middle size arteries was not influence but peripheral vessels around the juxta-glommerular apparatus showed proliferation in the kidney.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] Nishinaka T: "Effects of reduced pulse pressure to the celebral metabolism during prolonged nonpulsatile left heart bypass."Artificial Organs. 24(8). 676-679 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishinaka T: "Influence of pulsatile and nonpulsatile left heart bypass on the hormonal circadian rhythm."ASAIO Journal. 46. 582-586 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishinaka T: "Effect of prolonged nonpulsatile left heart bypass on vascular control status."J Artif Organs. 3. 34-38 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishinaka T: "Cardiac autonomic nervous function during long-term nonpulsatile left heat bypass."Artificial Organs. 23(6). 500-503 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishimura T: "Effects of long-term nonpulsatile left heart bypass on the mechanical properties of the aortic wall."ASAIO Journal. 45(5). 455-459 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishimura T: "Aortic reaction to prolonged nonpulsatile left heart bypass."J Artif Organs. 2. 141-145 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishimura T, Tatsumi E, Takaichi S, Taenaka Y, Wakisaka Y, Nakatani T, Masuzawa T, Takewa Y, Nakamura M, Endo S, Nakata S, Takano H.: "Prolonged nonpulsatile left heart bypass with reduced systemic pulse pressure causes morphological changes in the aortic wall."Artificial Organs. 22 (5). 405-410 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishimura T, Tatsumi E, Nishinaka T, Taenaka Y, Masuzawa T, Nakata M, Takano H.: "Diminished vasoconstrictive function caused by long-term nonpulsatile left heart bypass."Artificial Organs. 23 (8). 722-726 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishimura T, Tatsumi E, Taenaka Y, Nishinaka T, Nakatani T, Masuzawa T, Nakata M, Nakamura M, Endo S, Takano H.: "Effects of long-term nonpulsatile left heart bypass on the mechanical properties of the aortic wall."ASAIO Journal. 45 (5). 455-459 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishimura T, Tatsumi E, Nishinaka T, Taenaka Y, Takano H.: "Aortic reaction to prolonged nonpulsatile left heart bypass."J Artif Organs. 2. 141-145 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishimura T, Tatsumi E, Nishinaka T, Taenaka Y, Nakata M, Takano, H.: "Prolonged nonpulsatile left heart bypass diminishes vascular comtractility."Int J ArtifOrgans. 22 (7). 492-498 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishinaka T, Tatsumi E, Nishimura T, Taenaka Y, Masuzawa T, Nakata M, Takano H, Koyanagi H.: "Cardiac autonomicnervous function during long-term nonpulsatile left heart bypass."Artificial Organs. 23 (6). 500-503 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishinaka T, Koyanagi H, Tatsumi E, Taenaka Y, Takano H.: "Effect of prolonged nonpulsatile left heart bypass on vascular control status."J Artif Organs. 3. 34-38 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishinaka T, Tatsumi E, Nishimura T, Taenaka Y, Imada K, Takano H, Koyanagi H.: "Effects of reduced pulse pressure to the cerebral metabolism during prolonged non-pulsatile left heart bypass."Artifi Organs. 24 (8). 676-679 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishinaka T, Tatsumi E, Taenaka Y, Takano H, Koyanagi H.: "Influence of pulsatile and nonpulsatile left heart bypass on the hormonal circadian rhythm."ASAIO Journal. 46. 582-586 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nishinaka T: "Effects of reduced pulse pressure to the celebral metabolism during prolonged nonpulsatile left heart bypass."Artificial Organs. 24(8). 676-679 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Nishinaka T: "Influence of pulsatile and nonpulsatile left heart bypass on the hormonal circadian rhythm."ASAIO Journal. 46. 582-586 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Nishimura T: "Diminished vasoconstrictive function caused by long-term nonpulsatile left heart bypass"Artificial Organs. 23(8). 722-726 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Nishimura T: "Effects of long-term nonpulsatile left heart bypass on the mechanical properties of the aortic wall"ASAIO Journal. 45(5). 455-459 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Nishimura T: "Aortic reaction to prolonged nonpulsatile left heart bypass"J Artif Organs. 2. 141-145 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Nishinaka T: "Cardiac autonomic nervous function during long-term nonpulsatile left heart bypass"Artificial Organs. 23(6). 500-503 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Nishimura T: "Prolonged nonpulsatile left heart bypass with reduced systemic pulsc pressure causes morphological changes in the sortic wall." Artificial Organs. 22(5). 405-410 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Tatsumi E: "Altered hemodynamic,humoral,and metabolic conditions in nonpulsatile systemic circulation" Heart Replacement-Arificial Heart 6.Akutsu T,Koyanagi H (Eds.) Springer-Veriag Tokyo. 295-302 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 西村 隆: "定常流左バイパス時の脈圧の減少が大動脈壁の力学的特性に及ぼす影響に関する研究" 日本機械学会第76期全国大会講演論文集(II). 98(3). 269-270 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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