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Long-term haemodynamic effects of amlodipine at rest and during exercise in essential hypertension
P Lund-Johansen1, P Omvik, W White
1Medical Department, Section of Cardiology, Haukeland Hospital, Bergen, Norway.
Insights
Amlodipine effectively lowers blood pressure and peripheral resistance in hypertensive patients without causing reflex tachycardia. This medication maintains heart function and is well-tolerated across age groups.
Area of Science:
- Cardiovascular Medicine
- Clinical Pharmacology
Background:
- Essential hypertension is a widespread condition requiring effective management.
- Controlling blood pressure is crucial for preventing cardiovascular complications.
Purpose of the Study:
- To evaluate the efficacy and tolerability of amlodipine in patients with essential hypertension.
- To assess the hemodynamic effects of amlodipine, including blood pressure, peripheral resistance, and cardiac function.
Main Methods:
- A daily dosage of amlodipine (5-10 mg) was administered to patients with mild-to-severe essential hypertension.
- Hemodynamic parameters, including blood pressure, total peripheral resistance, cardiac index, and stroke index, were monitored at rest and during exercise.
- Patient tolerance and side effects were recorded.
Main Results:
- Amlodipine significantly lowered blood pressure and reduced total peripheral resistance.
- No reflex tachycardia was observed.
- Heart pump function was maintained, with a trend towards increased cardiac and stroke index.
- The drug was well-tolerated in both young and elderly patients, with no reported vasodilator-related side effects.
Conclusions:
- Amlodipine is an effective antihypertensive agent for managing essential hypertension.
- It demonstrates a favorable hemodynamic profile, maintaining cardiac function without adverse effects like reflex tachycardia.
- Amlodipine is a safe and well-tolerated treatment option for a broad range of hypertensive patients.
Abstract:
Amlodipine administered once daily (5-10 mg) lowered blood pressure and reduced total peripheral resistance in patients with mild-to-severe essential hypertension without any reflex tachycardia. Heart pump function was maintained at rest and during exercise with a trend towards an increase in cardiac and stroke index. Amlodipine was effective and well tolerated in both young and elderly hypertensive patients with no reports of unpleasant vasodilator-related side effects.