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Published on: April 8, 2013
Further evidence for low-dose combinations in patients with left ventricular hypertrophy
1Department of Medicine, Sahlgrenska University Hospital/Ostra, Göteborg, Sweden. bjorn.dahlof@scri.se
Insights
A low-dose combination therapy significantly reduced left ventricular hypertrophy (LVH) more effectively than monotherapy in hypertensive patients. This strategy offers a superior approach to managing hypertension and its cardiac consequences.
Area of Science:
- Cardiology
- Pharmacology
- Hypertension Management
Background:
- Left ventricular hypertrophy (LVH) is a significant predictor of cardiovascular disease.
- Reversal of LVH is a key objective in managing hypertension.
- Low-dose combination therapy is increasingly recognized for its benefits in hypertension management.
Purpose of the Study:
- To evaluate the efficacy of a low-dose combination therapy (perindopril/indapamide) versus monotherapy in reducing left ventricular mass in hypertensive patients.
- To compare the effects of combination therapy and monotherapy on central and peripheral blood pressure and pulse pressure.
Main Methods:
- The REASON study compared a low-dose ACE inhibitor/diuretic combination with beta-blocker monotherapy.
- The PICXEL study compared the same low-dose combination with ACE inhibitor monotherapy.
- Both studies included hypertensive patients with LVH and assessed changes in left ventricular mass and blood pressure over 1 year.
Main Results:
- The low-dose combination therapy resulted in a significantly greater reduction in left ventricular mass compared to beta-blocker monotherapy in the REASON study.
- Perindopril/indapamide demonstrated superior reduction in central and peripheral systolic blood pressure and pulse pressure compared to beta-blocker.
- The PICXEL study also showed significantly greater decreases in LVH parameters and blood pressure with the low-dose combination therapy over 1 year.
Conclusions:
- Low-dose combination therapy, specifically perindopril/indapamide, is more effective in reversing left ventricular hypertrophy than traditional monotherapies.
- The benefits of this combination therapy extend beyond blood pressure reduction, impacting central hemodynamic changes crucial for LVH regression.
- This strategy represents a significant advancement in antihypertensive management for patients with LVH.
Abstract:
Left ventricular hypertrophy (LVH) is a powerful independent risk predictor for cardiovascular disease and reversal of LVH has become a primary goal of antihypertensive management. Recent evidence has confirmed that most hypertensive patients will benefit from a low-dose combination strategy to manage their hypertension, and two trials have recently examined the effect of this strategy on left ventricular mass. The REASON study (pREterax in regression of Arterial Stiffness in a contrOlled double-bliNd study) compared the low-dose combination of an angiotensin-converting enzyme (ACE) inhibitor and a diuretic with beta-blocker monotherapy in hypertensive patients with LVH, and the PICXEL study (Preterax In a double-blind Controlled study versus Enalapril in LVH) compared the same low-dose combination with ACE inhibitor monotherapy in hypertensive patients with echocardiographic LVH. The REASON study demonstrated that the low-dose combination produced a significantly greater change in left ventricular mass after 1 year than the beta-blocker, despite inducing a similar change in mean blood pressure. Additionally, perindopril/indapamide reduced central (carotid) and peripheral (brachial) systolic blood pressure (SBP) and pulse pressure (PP) to a significantly greater extent than beta-blocker, and these benefits were more pronounced for the central values; LVH is affected more by central rather than peripheral haemodynamic changes. Results of the analysis of the PICXEL study showed a significantly greater decrease in LVH parameters and blood pressure over 1 year in favour of the low-dose combination. This reduction cannot be entirely explained by the better efficacy of the low-dose combination on blood pressure reduction.
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