Angiotensin converting enzyme inhibition restores cardiac and hormonal responses to volume overload in patients with dilated cardiomyopathy and mild heart failure

Massimo Volpe, Cristina Tritto, Nicola DeLuca, Speranza Rubattu, Alessandro F. Mele, Giuseppe Lembo, Iolanda Enea, Paolo DeCampora, Virgilio Rendina, Massimo Romano, Bruno Trimarco, Mario Condorelli

Research output: Contribution to journalArticle

Abstract

Background. Angiotensin converting enzyme (ACE) inhibition exerts a favorable effect on the response to exercise in heart failure. This study was planned to define the influence of ACE inhibition on the adaptation to volume overload. Methods and Results. We studied the hemodynamic, hormonal, and renal responses to acute volume expansion (sodium chloride, 0.9%, 0.25 ml·kg-1·min-1 for 2 hours) in patients with idiopathic or ischemic dilated cardiomyopathy and mild heart failure (New York Heart Association class I or II, ejection fraction ≤50%). The patients were studied without any pretreatment (n=14) or after 1 week of treatment with the oral ACE inhibitor quinapril at a dosage of 10 mg/day (n=11). Seven patients were studied during constant intravenous infusion with nitroglycerin (0.1 μg·kg-1·min-1). The study groups had similar hemodynamic and clinical characteristics and hormonal profile at baseline evaluation. In the untreated patients, volume expansion did not increase left ventricular end-diastolic volume measured by echocardiography and was associated with a reduction in ejection fraction (p0.05) estimated by plethysmography. In addition, plasma atrial natriuretic factor did not change, and plasma norepinephrine was increased by saline loading. In contrast, in the patients treated with quinapril, volume expansion induced an increase of both left ventricular volumes (p

Original languageEnglish
Pages (from-to)1800-1809
Number of pages10
JournalCirculation
Volume86
Issue number6
Publication statusPublished - Dec 1992

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Dilated Cardiomyopathy
Peptidyl-Dipeptidase A
Heart Failure
Hemodynamics
Plethysmography
Nitroglycerin
Atrial Natriuretic Factor
Angiotensin-Converting Enzyme Inhibitors
Intravenous Infusions
Sodium Chloride
Stroke Volume
Echocardiography
Norepinephrine
Exercise
Kidney
quinapril

Keywords

  • Angiotensin
  • Atrial natriuretic factor
  • Atrial peptides
  • Nitroglycerin
  • Quinapril
  • Renin

ASJC Scopus subject areas

  • Physiology
  • Cardiology and Cardiovascular Medicine

Cite this

Angiotensin converting enzyme inhibition restores cardiac and hormonal responses to volume overload in patients with dilated cardiomyopathy and mild heart failure. / Volpe, Massimo; Tritto, Cristina; DeLuca, Nicola; Rubattu, Speranza; Mele, Alessandro F.; Lembo, Giuseppe; Enea, Iolanda; DeCampora, Paolo; Rendina, Virgilio; Romano, Massimo; Trimarco, Bruno; Condorelli, Mario.

In: Circulation, Vol. 86, No. 6, 12.1992, p. 1800-1809.

Research output: Contribution to journalArticle

Volpe, M, Tritto, C, DeLuca, N, Rubattu, S, Mele, AF, Lembo, G, Enea, I, DeCampora, P, Rendina, V, Romano, M, Trimarco, B & Condorelli, M 1992, 'Angiotensin converting enzyme inhibition restores cardiac and hormonal responses to volume overload in patients with dilated cardiomyopathy and mild heart failure', Circulation, vol. 86, no. 6, pp. 1800-1809.
Volpe, Massimo ; Tritto, Cristina ; DeLuca, Nicola ; Rubattu, Speranza ; Mele, Alessandro F. ; Lembo, Giuseppe ; Enea, Iolanda ; DeCampora, Paolo ; Rendina, Virgilio ; Romano, Massimo ; Trimarco, Bruno ; Condorelli, Mario. / Angiotensin converting enzyme inhibition restores cardiac and hormonal responses to volume overload in patients with dilated cardiomyopathy and mild heart failure. In: Circulation. 1992 ; Vol. 86, No. 6. pp. 1800-1809.
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