Ex Vivo肺灌流のためのブタモデルにおける心拍出量の測定

Executive Industry Relevance

Accurate cardiac output measurement in porcine EVLP models is critical for establishing physiologically relevant perfusion flows, directly impacting the predictive value of preclinical lung preservation and transplantation studies. The comparison of thermodilution, BSA, weight, and Fick's methods addresses a key inflection point in translational research, supporting robust target validation and mechanistic de-risking for pulmonary interventions. Standardizing cardiac output estimation enhances reproducibility and informs risk-adjusted advancement decisions in organ preservation pipelines.

Strategic Applications in Biopharma R&D

Early Discovery & Target Validation

• Enables rigorous interrogation of perfusion parameters for functional lung assessment in preclinical models.
• Supports biological de-risking by clarifying the impact of flow rates on tissue viability and molecular endpoints.
• Facilitates predictive confidence in translational lung preservation protocols.

Screening & Assay Development

• Provides validated quantitative outputs for cardiac output, supporting assay standardization in EVLP workflows.
• Enables reproducible setup of perfusion conditions for downstream compound or intervention screening.
• Supports scalability and platform reuse by benchmarking multiple cardiac output estimation methods.

Translational & Preclinical Research

• Aligns perfusion parameters with disease-relevant and transplantation-relevant endpoints in porcine models.
• Ensures continuity from discovery through preclinical validation by standardizing physiological readouts.
• Reduces mechanistic ambiguity in lung preservation and recovery studies.

Pipeline & Workflow Integration

This method anchors the EVLP workflow from early discovery through preclinical validation, providing a foundation for lead identification and translational research in organ preservation.

• Discovery Biology: Supports hypothesis testing on the effects of perfusion flow on lung structure and function.
• Screening: Delivers reproducible, quantitative cardiac output measurements for assay readiness.
• Analytics: Enables statistical comparison of estimation methods, informing protocol selection and optimization.
• Translational Research: Bridges preclinical findings to clinical lung preservation strategies by aligning perfusion flows with physiological relevance.
• Enterprise Reuse: Establishes a standardized, reusable protocol for cardiac output determination in large animal models.

Operational & Enterprise Impact

• Scientific Value: Increases predictive confidence and reduces mechanistic ambiguity in lung perfusion studies.
• Operational Value: Enhances reproducibility and standardization across research teams and studies.
• Strategic Value: Informs go/no-go decisions for lung preservation protocols and technology development.
• Portfolio Impact: Supports risk-adjusted prioritization of preclinical models and translational research investments.

Implementation Considerations

• Requires expertise in surgical catheterization and physiological monitoring in large animal models.
• Demands access to thermodilution catheters, pressure transducers, and analytical infrastructure for gasometry and statistical analysis.
• Necessitates cross-team standardization of cardiac output measurement protocols.
• Adaptation may be needed for different animal models or perfusion systems.
• Investigators must evaluate method suitability based on protocol-specific needs and observed measurement differences.

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