[Arterial stiffness, wave reflections and myocardial protection: the REASON project]

Gérard M London1

  • 1Centre Hospitalier F.H. Manhès, Fleury-Mérogis, France. glondon@club-internet.fr

Drugs
|April 24, 2003
PubMed

Insights

The REASON study found that perindopril/indapamide significantly reduced systolic blood pressure (SBP) and pulse pressure (PP) more than atenolol in hypertensive patients. This combination therapy may offer superior cardiovascular risk reduction by targeting key pressure parameters.

Area of Science:

  • Cardiology
  • Pharmacology

Background:

  • Systolic blood pressure (SBP) and pulse pressure (PP) are increasingly recognized as critical cardiovascular risk factors, potentially more so than diastolic blood pressure (DBP).
  • Targeted reduction of SBP and PP through specific antihypertensive treatments is of significant clinical interest.

Purpose of the Study:

  • To compare the efficacy of a very low-dose combination of perindopril and indapamide (Per/Ind) versus atenolol in hypertensive patients.
  • To assess the differential effects of these treatments on SBP, DBP, PP, and left ventricular mass index (LVMI).

Main Methods:

  • The REASON project was a randomized, double-blind study involving 471 hypertensive patients over 12 months.
  • Patients received either very low-dose Per/Ind (2mg/0.625mg) or atenolol (50mg).
  • Measurements included brachial blood pressure and echocardiographic assessment of left ventricular hypertrophy.

Main Results:

  • Both treatments similarly reduced DBP, but Per/Ind achieved significantly greater reductions in SBP (p < 0.001) and PP (p < 0.001) compared to atenolol.
  • Patients with baseline left ventricular hypertrophy showed a significantly greater reduction in LVMI with Per/Ind versus atenolol (p = 0.031).

Conclusions:

  • Very low-dose Per/Ind selectively targets SBP and PP more effectively than atenolol.
  • This selective targeting of SBP and PP by Per/Ind may have important implications for reducing cardiovascular risk.
  • Per/Ind demonstrated a superior effect on reducing left ventricular mass in patients with hypertrophy.

Related Concept Videos

Peripheral Artery Disease I: Introduction01:30

Peripheral Artery Disease I: Introduction

Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
Ischemic Heart Disease: Overview01:17

Ischemic Heart Disease: Overview

Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and narrowing...
Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
Pulse01:16

Pulse

When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical indicator...