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Mechanical vibration for the therapeutic measures of severe heart disease

Research Project

Project/Area Number 02404054
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field Thoracic surgery
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

MOHRI Hitoshi  Tohoku University. School of Medicine,Professor, 医学部, 教授 (60108503)

Co-Investigator(Kenkyū-buntansha) SATOU Naoshi  東北大学, 医学部附属病院, 講師 (20114499)
KOIWA Yoshirou  東北大学, 医学部, 助教授 (80091685)
NITTA Sinichi  東北大学, 抗酸菌病研究所, 助教授 (90101138)
Project Period (FY) 1990 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥11,100,000 (Direct Cost: ¥11,100,000)
Fiscal Year 1992: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1991: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1990: ¥7,900,000 (Direct Cost: ¥7,900,000)
Keywordsviration / myocardial preseruation / viscoelasticity / cardiac transplantation / ドナー心 / 重症心不全 / 心補助法 / 心保存
Research Abstract

Mechanical vibration for the therapeutic measure of severe heart disease 1.Development of monitoring measure of the myocardial preservation during open heart surgery. A transfer function method was applied for the measurement and the monitoring system consists of a vibrator, a function generator, a pair of vibration pickups and a signal processor. In the animal experiments, their heart were subjected to cardioplegic arrest with variety of myocardial temperatures from 15 30゚C and their viscoelasticity were measured periodically. Results of these experiments demonstrated usefulness of continuous monitoring of the myocardial viscoelasticity during open heart surgery, especially for the procedures which requires prolonged ischemic time. 2.Monitoring of the donor heart viability during simple immersion technique have been enabled by the use of measurement system of myocardial viscoelasticity. 3.Development of myocardial vidrator for the clinical use was done by the use of microsolenoid. However its clinical use would be hampered with anatomical incompatibility and currently we are planning to manufacture a system with a clinically useful design.

Report

(4 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 佐藤 尚他: "心筋粘弾性の測予による心筋保護効果に評価" 日本心臓血管外科学会雑誌. 22. 367 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoshi Sato,et al: "Change of myocardial v scoelasticity during cardioplegic drrest" 日本心臓血管外科学会雑誌. 21. 114 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoshi,Hitoshi Mohri et al.: "Evaluation of the myocardial preservation technique with continuous monitoring of the myocardial viscoelasticity" Jap J Cardiovascular Surgery. 22. 367 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Naoshi Sato,Hitoshi Mohri et al.: "Change of myocardial viscoelasticity during cardioplegic arrest." Jap J Cardiovascular Surgery. 21. 114 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 佐藤 尚,他: "心筋粘弾性の測定による心筋保護効果の評価" 日本心蔵血管外料学会雑誌. 22. 367- (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Naoshi Sato,et al: "change of myocardial viscoelasticity during cardioplegic arrest" 日本心蔵血管外料学会雑誌. 21. 114- (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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