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MORE--MOexipril and REgression of left ventricle hypertrophy in combination therapy A multicentric open label
1Department of Internal Medicine II, St Ann's Teaching Hospital, Brno, Czech Republic. jspinar@med.muni.cz
Insights
Adding the ACE inhibitor moexipril to hypertension treatment significantly reduced blood pressure and left ventricle mass. The combination of moexipril with a thiazide diuretic proved most effective, with minimal adverse effects observed.
Area of Science:
- Cardiology
- Pharmacology
- Hypertension Management
Background:
- Poorly controlled hypertension poses significant cardiovascular risks.
- Combination therapy is often necessary for effective blood pressure management.
- Angiotensin-Converting Enzyme (ACE) inhibitors are a cornerstone in hypertension treatment.
Purpose of the Study:
- To assess the efficacy of adding the ACE inhibitor moexipril to existing antihypertensive regimens.
- To evaluate the impact of moexipril on blood pressure and cardiac structure in patients with resistant hypertension.
- To compare the effectiveness of moexipril in different combination therapy settings.
Main Methods:
- A single-blind, multicenter study involving 420 patients with inadequately controlled hypertension.
- Moexipril was added to existing monotherapy or dual-drug regimens lacking ACE inhibitors or Angiotensin II Receptor antagonists.
- Echocardiography was performed at baseline and after 6 months to assess cardiac remodeling, alongside regular blood pressure monitoring.
Main Results:
- Significant reductions in systolic and diastolic blood pressure (p<0.0001) and heart rate (p<0.0001) were observed.
- Left ventricle mass (p<0.0001), left atrium size (p<0.0001), and E/A ratio (p<0.0005) showed significant improvements.
- Moexipril addition to diuretics demonstrated a statistically greater effect on reducing left ventricle mass compared to calcium channel blockers or beta-blockers.
Conclusions:
- Adding moexipril to combination therapy effectively reduces blood pressure and left ventricle mass, comparable to monotherapy trials.
- The combination of an ACE inhibitor with a thiazide diuretic appears to be the most effective regimen.
- Moexipril was well-tolerated, with a low incidence of adverse events, and improved lipid profiles.
Aim:
To evaluate the effect of ACE inhibitor moexipril if added to combination therapy in patient with poorly controlled hypertension.
Patients:
Four hundred twenty patients with hypertension treated with monotherapy or two dug combination without an ACE inhibitor or AII antagonist and with blood pressure >/=140/90 mm Hg.
Design:
Single-blind, multicenter, open, with a double-blind echocardiographic examination.
Methods:
Basic cardiological examination including echocardiography was performed before including into the study. If the patient fulfilled inclusion criteria, ACE inhibitor moexipril was added to the therapy and uptitrated according to BP values. BP measuring, clinical examination, and basic laboratory were performed every month, echocardiography was repeated after 6 months.
Results:
Sitting BP decreased from 161.43+/-12.84/96.72+/-7.74 mm Hg to 135.87+/-9.98/82.36+/-5.83 mm Hg (p<0.0001), heart rate from 73.08+/-9.87 to 69.80+/-7.91 (p<0.0001). Three hundred forty patients (81%) had BPd <90 mm Hg after 6 months. Left ventricle mass decreased from 263.24+/-94.69 to 246.71+/-89.08 g (p<0.0001), left atrium decreased from 39.78+/-5.40 to 38.89+/-4.98 mm (p<0.0001), and E/A ratio increased from 0.91+/-0.28 to 0.94+/-0.27 (p<0.0005). Plasma cholesterol level decreased from 5.67+/-0.87 to 5.44+/-0.68 mmol/l (p<0.0001) and plasma triglycerides decreased from 1.92+/-1.07 to 1.78+/-0.80 mmol/l (p<0.001). A greater effect on blood pressure reduction was observed in combination ACE-I+diuretics than in combination ACE-I+betablocker or ACE-I+Ca blocker (statistically borderline). A statistically greater effect on left ventricle mass was observed if moexipril was added to a diuretic than to Ca blocker (p=0.02) or betablocker (p=0.04).
Summary:
ACE inhibitor moexipril added to combination therapy of hypertension had similar effect on blood pressure reduction and left ventricle mass as in monotherapy trials. The most effective combination is ACE ihibitor+thiazide diuretic. A very small number of adverse events was observed; cough was reported in 2.14% of patients. Decreased heart rate and improvement in lipid parameters were observed in the whole group.
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