Longitudinal Changes in LV Structure and Diastolic Function in Relation to Arterial Properties in General Population

Area of Science:

• Cardiovascular Medicine
• Echocardiography
• Arterial Physiology

Background:

• Arterial stiffness is increasingly recognized as a significant factor in cardiovascular health.
• Longitudinal changes in left ventricular (LV) structure and function require further investigation in relation to arterial properties.

Purpose of the Study:

• To assess the predictive value of baseline arterial properties for longitudinal changes in echocardiographic indices of LV structure and function.
• To elucidate the role of arterial stiffness as a mediator of LV remodeling and diastolic dysfunction.

Main Methods:

• A cohort of 607 participants underwent serial echocardiography and Doppler imaging over 4.7 years.
• Central pulse pressure (cPP) and carotid-femoral pulse wave velocity (PWV) were measured at baseline using applanation tonometry.
• Longitudinal changes in LV dimensions, dimensions, transmitral blood flow, and mitral annular velocities were analyzed in relation to arterial stiffness parameters.

Main Results:

• Higher baseline PWV was associated with increased LV septal and posterior wall thickness, and LV internal diameter decrease, leading to increased relative wall thickness.
• Elevated baseline PWV increased the risk of developing or retaining LV concentric remodeling.
• In women, baseline cPP predicted greater increases in LV mass and E/e' ratio, indicating worsening diastolic function.

Conclusions:

• Baseline arterial stiffness, particularly PWV, is a significant predictor of LV concentric remodeling in both men and women.
• Central pulse pressure is a key predictor of diastolic dysfunction progression in women.
• Arterial properties play a crucial role in mediating LV remodeling and diastolic dysfunction, highlighting their importance in cardiovascular assessment.