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Related Experiment Videos

A delivery circuit for normothermic reperfusion model.

S M Yuan1, Q Wang

  • 1Department of Cardiothoracic Surgery, 254 Hospital of Tianjin, People's Republic of China.

The Kaohsiung Journal of Medical Sciences
|March 4, 1999
PubMed
Summary

A new, simplified delivery circuit effectively introduced Injectio Radix Ginseng Compositae during normothermic reperfusion. This cost-effective method proved safe and efficient, significantly reducing myocardial mitochondrial damage in animal models.

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Area of Science:

  • Cardiovascular Surgery
  • Pharmacology
  • Biomedical Engineering

Background:

  • Normothermic reperfusion is crucial for assessing interventions like Injectio Radix Ginseng Compositae.
  • Existing delivery methods can be complex and costly.
  • A simplified approach is needed to facilitate research and clinical application.

Purpose of the Study:

  • To describe a simplified delivery circuit for Injectio Radix Ginseng Compositae in a normothermic reperfusion model.
  • To evaluate the safety, efficacy, and cost-effectiveness of the proposed circuit.
  • To assess the impact of the intervention on myocardial mitochondrial damage.

Main Methods:

  • A novel circuit incorporating a venous reservoir for mixing Injectio Radix Ginseng Compositae with cardioplegia was designed.

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  • The mixture was infused into the ascending aorta during cardiopulmonary bypass.
  • Ultrastructural analysis was used to quantify myocardial mitochondrial damage.

    • Main Results:

    • The circuit was found to be affordable and acceptable for most medical laboratories.
    • Perfusion and biochemical parameters were satisfactory.
    • A significant reduction in reperfused myocardial mitochondrial damage was observed (25.33% vs. 70.12%, p=0.023).
    • No complications related to the perfusion technique were reported.

    Conclusions:

    • The described simplified delivery circuit is simple, safe, and effective for administering Injectio Radix Ginseng Compositae.
    • It facilitates constant arterial perfusion and reduces myocardial damage.
    • This cost-effective method supports the assessment of novel therapeutic agents in reperfusion models.