Systemic and regional hemodynamic effects of perindopril in congestive heart failure.

The acute systemic and regional hemodynamic responses to a single oral dose (4 mg) of the angiotensin converting enzyme inhibitor perindopril were investigated in 10 patients with severe congestive heart failure. Perindopril produced significant and long-lasting decreases in systemic vascular resistance (-18%), right atrial pressure (-60%), and mean pulmonary capillary wedge pressure (-28%), whereas it significantly increased cardiac index (+ 12%). Brachial (+ 130%, pulsed Doppler technique) and renal (+ 34%) blood flows were also significantly increased whereas hepatic blood flow remained unchanged.

[Non-invasive regional and cardiac output determination in healthy volunteers. Predictive value].

The effects of nifedipine (20 mg), propranolol (80 mg), the nifedipine (20 mg) + propranolol (80 mg) combination and a placebo on cardiac [heart rate (HR), cardiac output (CO, Doppler determination)] and systemic [mean arterial pressure (MAP), systemic vascular resistance (SVR)] and regional hemodynamic [brachial blood flow (BBF) and arterial diameter (BAD) (pulsed Doppler), forearm vascular resistance (FVR)] parameters were investigated during the 3 hours following their random administration in a double blind and cross over study performed in 6 healthy subjects. At their peak effects, (a) nifedipine decreased SVR (-17 p. 100, p less than 0.

Functional antagonism between PK 11195, a peripheral benzodiazepine receptor antagonist, and nicardipine at the vascular level in healthy subjects: a peripheral hemodynamic study.

The effects of PK 11195, a peripheral benzodiazepine receptor antagonist (200 mg orally), of nicardipine (20 mg orally), of their combination, and of a placebo on brachial and carotid arteries, diameters, and flows were determined and compared over a period of 8 h after drug intake during a double-blind and cross-over study performed on six healthy volunteers. Simultaneously, plasma concentrations of both drugs were measured. PK 11195 significantly increased carotid and more markedly brachial arteries, flows (20 and 39%, respectively), and diameters (4 and 7%, respectively) and decreased forearm vascular resistance.

Peripheral haemodynamic effects of perindopril compared in patients with congestive heart failure and in normal volunteers.

The effects of perindopril, 4 mg orally, on brachial artery blood flow and diameter (pulsed Doppler) and on forearm vascular resistance were investigated and compared in six normal subjects and 10 congestive heart failure patients (New York Heart Association class III or IV). Pre-drug values of brachial artery blood flow and diameter were significantly lower in patients with congestive heart failure than in normal subjects, the reverse being true for forearm vascular resistance. In normal subjects perindopril increased brachial artery blood flow and decreased forearm vascular resistance, while in patients with congestive heart failure the same effects were observed but they were more pronounced and brachial artery diameter was increased.