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Updated: May 6, 2026

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
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Left ventricular finite element model bounded by a systemic circulation model.

A I Veress, G M Raymond, G T Gullberg

    Journal of Biomechanical Engineering
    |November 16, 2013
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    Summary
    This summary is machine-generated.

    Hypertension significantly increases stress and workload in the left ventricle (LV). Modeling shows mild hypertension raises LV fiber stress by 21%, while moderate hypertension increases it by 36%, impacting cardiac function.

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    Area of Science:

    • Computational Biology
    • Cardiovascular Physiology
    • Biomedical Engineering

    Background:

    • Finite element (FE) models of the left ventricle (LV) require realistic boundary conditions.
    • Existing LV models lack integrated circulatory system dynamics for comprehensive analysis.

    Purpose of the Study:

    • To develop and couple a circulatory system model with existing FE models of the LV.
    • To investigate the impact of varying hypertension levels on LV stress and circulatory workload.

    Main Methods:

    • Developed a closed-loop circulatory model (systemic arterial, capillary, venous) integrated with a JSim-based LV FE model.
    • Created three coupled models: normal, mild hypertension (137/89 mm Hg), and moderate hypertension (165/100 mm Hg).
    • Optimized circulation to LV end-diastolic parameters and LV models to circulatory steady-state characteristics.

    Main Results:

    • Mild hypertension increased average LV fiber stress by 21%; moderate hypertension increased it by 36%.
    • Circulatory work increased by 18% for mild hypertension and 43% for moderate hypertension compared to normal conditions.
    • Coupled modeling provided realistic boundary conditions, enabling accurate stress and workload predictions.

    Conclusions:

    • Hypertension significantly elevates mechanical stress and workload within the left ventricle.
    • The coupled FE and circulatory models offer a robust platform for studying cardiovascular disease mechanics.
    • These findings highlight the detrimental effects of elevated blood pressure on cardiac performance.