[Dynamics of left ventricular longitudinal function in patients with arterial hypertension during therapy with

Kardiologiia
|October 19, 2006
PubMed

Insights

Long-term therapy with moexipril and hydrochlorothiazide improved left ventricular (LV) systolic and diastolic function in patients with arterial hypertension and LV hypertrophy (LVH). This treatment led to significant improvements in myocardial mass and cardiac function parameters.

Area of Science:

  • Cardiology
  • Hypertension Research
  • Echocardiography

Context:

  • Arterial hypertension frequently leads to left ventricular hypertrophy (LVH).
  • Angiotensin-converting enzyme (ACE) inhibitors are a cornerstone in managing hypertension and its cardiac complications.
  • Assessing the impact of ACE inhibitor therapy on LV function post-LVH regression is crucial for understanding long-term cardiovascular outcomes.

Purpose:

  • To evaluate the effects of long-term moexipril and hydrochlorothiazide therapy on left ventricular (LV) longitudinal systolic and diastolic function.
  • To assess functional changes in patients with arterial hypertension following regression of LV hypertrophy (LVH).

Summary:

  • A study involving 44 hypertensive patients with regressed LVH after 12 months of moexipril and hydrochlorothiazide therapy utilized tissue Doppler imaging and 24-hour blood pressure monitoring.
  • Treatment resulted in decreased myocardial mass and improved 24-hour blood pressure monitoring parameters.
  • Significant improvements were observed in diastolic function, indicated by decreased isovolumetric relaxation time (IVRT) and increased early diastolic mitral annular velocity (e'). Systolic function also showed improvement in several LV segments.

Impact:

  • Demonstrates that ACE inhibitor and diuretic combination therapy can reverse detrimental cardiac remodeling in hypertensive patients.
  • Highlights the restoration of both systolic and diastolic function following LVH regression.
  • Provides evidence for the beneficial effects of combined therapy on cardiac mechanics and blood pressure control.
Abstract

Related Concept Videos

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors01:30

Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors

Angiotensin-converting enzyme (ACE), a vital component of the renin-angiotensin-aldosterone system, is abundant in lung endothelial cells. ACE converts the inactive decapeptide, angiotensin I, into the active octapeptide, angiotensin II. This potent vasoconstrictor narrows blood vessels, increasing resistance to blood flow and elevating blood pressure. Angiotensin II also stimulates aldosterone production, encouraging kidney cells to reabsorb more sodium and water from urine, thereby increasing...
Aortic Regurgitation III: Medical Management01:25

Aortic Regurgitation III: Medical Management

Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
Antihypertensive Drugs: Angiotensin II Receptor Blockers01:30

Antihypertensive Drugs: Angiotensin II Receptor Blockers

In the renin-angiotensin-aldosterone system, a hormone called angiotensin II plays a crucial role. It binds to the AT1 receptors in vascular smooth muscles coupled with Gq proteins. The activation of these receptors activates an enzyme called phospholipase C, which releases two molecules: inositol trisphosphate and diacylglycerol. These molecules cause a chain reaction that leads to the phosphorylation of myosin light chains and promotes interaction between actin and myosin, leading to smooth...
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...