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  • Title: [The effects of atrial natriuretic peptide on left ventricular function in subjects with heart failure].
    Author: Indolfi C, Piscione F, Volpe M, Lembo G, De Campora P, Russolillo E, Ambrosini V, Condorelli M, Chiariello M.
    Journal: Cardiologia; 1991 May; 36(5):351-6. PubMed ID: 1836751.
    Abstract:
    The effects of atrial natriuretic peptide (ANP) infusion was evaluated in 11 patients with congestive heart failure undergoing cardiac catheterization. Data were obtained at rest and during steady-state phase of alpha-human (1-28) ANP infusion (1 microgram/kg bolus dose, 0.1 microgram/kg/min iv for 30 min). Mean blood pressure decreased from 104 +/- 20 to 89 +/- 21 mmHg (p less than 0.05) 15 min after ANP infusion, as well as left ventricular end-diastolic pressure (from 27 +/- 6 to 14 +/- 11 mmHg, p less than 0.05) and wedge pressure (from 22 +/- 5 to 13 +/- 7 mmHg, p less than 0.05). Left ventricular ejection fraction increased significantly after ANP infusion from 39 +/- 7 to 47 +/- 2%, p less than 0.01. The ANP infusion significantly increased cardiac output from 4.9 +/- 0.8 to 5.8 +/- 1.41/min, p less than 0.05, and decreased the relaxation constant from 69 +/- 17 to 48 +/- 18, p less than 0.05. These results demonstrate that in patients with congestive heart failure ANP infusion decreased wedge pulmonary pressure, left ventricular end-diastolic pressure and increased cardiac output and left ventricular ejection fraction.
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