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Drexler H. Stellenwert von ACE-Hemmstoffen bei Herzinsuffizienz (Mechanismen). [The value of ACE inhibitors in heart failure (mechanism of action)]. Z Kardiol. 1992;81:85-91
Drexler, H. (1992). Stellenwert von ACE-Hemmstoffen bei Herzinsuffizienz (Mechanismen). [The value of ACE inhibitors in heart failure (mechanism of action)]. Zeitschrift fur Kardiologie, 8185-91.
Drexler, H. "Stellenwert von ACE-Hemmstoffen bei Herzinsuffizienz (Mechanismen)." [The value of ACE inhibitors in heart failure (mechanism of action)]. Zeitschrift fur Kardiologie vol. 81 (1992): 85-91.
Drexler H. Stellenwert von ACE-Hemmstoffen bei Herzinsuffizienz (Mechanismen). [The value of ACE inhibitors in heart failure (mechanism of action)]. Z Kardiol. 1992;81:85-91. German. PMID: 1290308.
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Z Kardiol. 1992;81:85-91.

[The value of ACE inhibitors in heart failure (mechanism of action)].

Zeitschrift fur Kardiologie

[Article in German]
H Drexler

Affiliations

  1. Med. Klinik III, Universität Freiburg.

PMID: 1290308

Abstract

ACE-inhibitors improve symptoms and prognosis in patients with heart failure. The V-Heft II trial has demonstrated that the beneficial effect of these agents is superior to unspecific vasodilators. Besides sustained arterial and venous vasodilation the inhibition of the neurohumoral axis is thought to play an important role. Angiotensin II and catecholamines not only exert vasoconstrictor effects, but might also contribute to vascular and myocardial growth. Thus, it may not be surprising that the beneficial effects of ACE inhibitors in heart failure only emerge during long-term therapy rather than after short-term administration. It has been shown that these agents improve blood flow to skeletal muscle during exercise after chronic therapy (not acutely), and there is some preliminary evidence that improvement of endothelial function might be involved in this effect, i.e., by reducing the degradation of bradykinin, an endothelial vasodilator. ACE inhibitors reduce LV hypertrophy, an important risk factor for cardiovascular disease and prognosis. Moreover, there is experimental evidence that ACE inhibitors can prevent and even reverse interstitial fibrosis in the left ventricle. Although the plasma renin activity may be normal in patients with chronic heart failure, recent data using polymerase chain reaction indicate that the tissue cardiac renin angiotensin system is activated in the failing human heart as assessed by measurements of angiotensin converting enzyme mRNA and angiotensinogen mRNA which may be an important target for ACE-inhibition.

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