Assessment of Ventricular-Arterial Coupling in Early Stage Middle-Aged Hypertensives

Area of Science:

• Cardiovascular Physiology
• Hypertension Research
• Echocardiography

Background:

• Ventricular-arterial coupling (VAC) reflects the interplay between the heart and arteries, crucial for cardiovascular health.
• Aging and comorbidities like hypertension (HTN) can impair VAC, leading to myocardial dysfunction and arterial stiffness.
• Early-stage, middle-aged hypertensives without organ damage represent a key population for investigating VAC improvement strategies.

Purpose of the Study:

• To determine if lifestyle modifications and antihypertensive drug treatment can enhance VAC in newly diagnosed, early-stage hypertensive individuals.
• To assess the impact of these interventions on myocardial function and arterial stiffness parameters.

Main Methods:

• Retrospective observational study of 126 individuals (mean age 40) divided into hypertensive (HTN) and normotensive (NT) groups.
• Assessed arterial elastance (Ea), pulse wave velocity (cfPWV), global longitudinal strain (GLS), and myocardial work (MW) parameters.
• HTN group received lifestyle change recommendations, with antihypertensive drugs added if blood pressure remained high.

Main Results:

• Hypertensive individuals exhibited higher blood pressure (BP), heart rate (HR), and myocardial work (GWI, GCW, GWW).
• Lifestyle changes improved BP, HR, VAC, Ea, cfPWV, global wasted work efficiency (GWE), and GLS in HTN.
• Antihypertensive treatment further improved BP, HR, VAC, Ea, cfPWV, and all MW parameters, including GLS.

Conclusions:

• Lifestyle changes, including smoking cessation and HR control, significantly improve VAC, arterial stiffness, and myocardial function in hypertensive patients.
• These improvements are vital for effective cardiovascular prevention in early-stage hypertension.
• VAC demonstrated a linear relationship with arterial stiffness (cfPWV) and myocardial function (GLS) post-intervention.