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  • Title: [Long-term treatment of chronic heart failure by an inhibitor of angiotensin converting enzyme].
    Author: Komajda M, Eugène M, Evans J, Laurenceau JL, Hubermann JP, Thomas D, Drobinski G, Leprince JL, Ganty J, Wajman A, Guedj D, Grosgogeat Y.
    Journal: Arch Mal Coeur Vaiss; 1983 Jan; 76(1):29-36. PubMed ID: 6303239.
    Abstract:
    We studied the hemodynamic, echocardiographic, phonomechanographic and hormonal changes during acute (25 mg) and chronic (6 months--75 to 225 mg/day) treatment of 10 patients with congestive cardiac failure due to cardiomyopathy with dilatation with SQ 14 225 (Captopril). The following changes were observed after the single dose: an increase in cardiac output (p less than 0,001), in stroke volume (p less than 0,01), a reduction in heart rate (p less than 0,01), in peripheral resistance (p less than 0,001) and pulmonary capillary pressure (p less than 0,001). There were no significant changes in end systolic or end diastolic left ventricular internal diameter. Plasma renin activity increased (p less than 0,001); there was a concurrent fall in serum aldosterone (NS): the plasma concentration of converting enzyme decreased (p less than 0,001). There was a correlation between the increase in peripheral resistance under basal conditions and the basal plasma renin activity (R = 0,72, p less than 0,02). The decrease in peripheral resistance after captopril also correlated with basal plasma renin activity (R = 0,89, p less than 0,01). After six months continuous therapy, the hemodynamic effect was sustained and was accompanied by a significant symptomatic improvement. Left ventricular internal end systolic and end diastolic diameters decreased (p less than 0,01 and p less than 0,01 respectively). The pre-ejectional period decreased (p less than 0,05). Serum aldosterone fell significantly (p less than 0,001) as did plasma renin activity (p less than 0,01); the serum level of converting enzyme remained low with respect to its initial value. These results show that captopril may be useful in severe cardiac failure without tolerance during long-term administration. No renal or hematological toxicity was observed in this group of patients.
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