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  • Title: Use of diuretics in heart failure and cirrhosis.
    Author: Schrier RW.
    Journal: Semin Nephrol; 2011 Nov; 31(6):503-12. PubMed ID: 22099507.
    Abstract:
    Sodium and water retention in cardiac failure and cirrhosis is pivotal in the morbidity and mortality of patients with these disorders. Moreover, the pathophysiology of these edematous disorders is quite similar. Both disorders have activation of the renin-angiotensin-aldosterone system, increased sympathetic activity, and nonosmotic stimulation of arginine vasopressin, which is initiated by unloading of the arterial baroreceptors; this occurs secondary to diminished cardiac output with heart failure and primary systemic arterial vasodilation with cirrhosis. With this common pathophysiology causing pulmonary congestion, ascites, and peripheral edema, diuretics are pivotal in the therapy of patients with heart failure and cirrhosis. Advanced cardiac failure and cirrhosis both show secondary hyperaldosteronism and impaired renal escape from the sodium-retaining effect of aldosterone. However, currently there are contradictory uses of mineralocorticoid-receptor antagonists in cardiac failure (non-natriuretic doses) versus cirrhosis (natriuretic doses). This disparity relates to the greater potential of hyperkalemia in cardiac failure patients receiving inhibitors of the renin-angiotensin-aldosterone system. This review discusses the beneficial and potentially deleterious effects of diuretic use in patients with cardiac failure and cirrhosis.
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