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European Heart Journal 1995 16(Supplement N):52-58; doi:10.1093/eurheartj/16.suppl_N.52
Copyright © 1995 by the European Society of Cardiology.
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© 1995 The European Society of Cardiology

Changes in neurohumoral systems during the development of congestive heart failure: Impact on cardiovascular and renal function

D. Elsner

Klinik und Poliklinik für Innere Medizin II, University of Regensburg Regensburg, Germany

Correspondence: G Priv-Doz Dr Dietmar Eisner, Klinik und Poliklinik für Innere Medizin II, Universitätsklinikum, 93042 Regensburg Germany

The results of studies in animals indicate that in left ventricular (LV) dysfunction and early heart failure, vasodilative-natriuretic mechanisms effectively antagonize vasoconstrictive-anti-natriure systems; this balancing effect contributes to preservation of circulatory and renal function. Progression to overt heart failure is characterized by a shift of this balance, with dysfunction of vasodilator systems and activation of vasoconstrictor systems. In patients, neurohumoral activation is observed early in asymptomatic LV dysfunction and is related to the severity of LV dysfunction in the progression of the syndrome. Neurohumoral activation precedes overt heart failure, and it has independent prognostic value for the development of heart failure. Activation of the renin-angiotensin system and of the sympathetic nervous system, as well as the possible stimulation of vasopressin secretion, may contribute to the transition from LV dysfunction to heart failure and may, therefore, provide targets for early pharmacological intervention.

Key Words: Congestive heart failure • neurohormones • renin-angiotensin-aldosterone system • left ventricular dysfunction • renal function • ACE inhibition


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