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September 1, 1981Clinical Science

Pericardial Pressure and the Left Ventricular Pressure-Volume Relationship

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May influence LV filling pressure assessment in pericardial disease; leaves open quantitative effects in modern cohorts.

To assess how pericardial pressure affects the left ventricular pressure-volume relationship and cardiac diastolic filling mechanics.
Hemodynamic assessment performed to evaluate intracardiac left ventricular pressure and volume relations.
Characterization of external pericardial constraints and their interaction with ventricular chamber dynamics (numerical sample sizes and specific protocol details not reported in the conference abstract).
Pericardial pressure exerts external mechanical constraint on the left ventricle, altering cavity distensibility and diastolic filling curves (quantitative values not reported in abstract text).
Variations in pericardial constraint shift the left ventricular pressure-volume relationship, demonstrating that external forces directly modify effective chamber compliance.

Oldershaw et al. (1981) studied this question.

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