Hypertension and transcatheter aortic valve replacement: parallel or series?

Area of Science:

• Cardiology
• Geriatrics
• Biomedical Engineering

Background:

• Aortic stenosis (AS) is the most prevalent valvular heart disease in the elderly, leading to significant morbidity and mortality.
• Hypertension frequently coexists with AS in the elderly, exacerbating poor outcomes.
• Traditional AS severity assessment focused on the valve, but AS is now viewed as a systemic disease involving ventricles and arterial stiffness.

Purpose of the Study:

• To review the interplay between the ventricle, valve, and vasculature in aortic stenosis.
• To emphasize downstream vascular changes post-transcatheter aortic valve replacement (TAVR).
• To highlight the role of valvuloarterial impedance (VAI) in predicting left ventricular changes and prognosis.

Main Methods:

• Literature review focusing on valvuloarterial impedance and its application in aortic stenosis.
• Analysis of studies examining the relationship between arterial compliance and AS severity.
• Examination of data on VAI's predictive value for outcomes after TAVR.

Main Results:

• Valvuloarterial impedance (VAI) provides insights into global ventricular load and AS pathophysiology.
• VAI aids in understanding AS course across diverse patient groups, including symptomatic and asymptomatic individuals.
• VAI is crucial for predicting left ventricular remodeling and patient prognosis, particularly after TAVR.

Conclusions:

• Aortic stenosis is a systemic condition requiring a holistic approach beyond valve assessment.
• Valvuloarterial impedance is a valuable metric for understanding AS pathophysiology and patient prognosis.
• Further research into VAI can optimize management strategies for AS patients, especially those undergoing TAVR.