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. 2024 Sep 24;13(19):5667.
doi: 10.3390/jcm13195667.

Neurohormonal Effects of Intravenous Dopamine in Patients with Acute Heart Failure

Christos Kourek  1 , Andrew Xanthopoulos  2 , Grigorios Giamouzis  2 , Charalambos Parisis  3 , Alexandros Briasoulis  4 , Dimitrios E Magouliotis  5 , Filippos Triposkiadis  6 , John Skoularigis  2
Affiliations

Neurohormonal Effects of Intravenous Dopamine in Patients with Acute Heart Failure

Christos Kourek et al. J Clin Med. .

Abstract

Background/Objectives: Many clinical trials have shown beneficial effects of low-dose dopamine on renal function, diuresis and symptom relief, or cardiac function in hospitalized patients with acute decompensated heart failure (HF). The aim is to assess the neurohormonal effects and the effects on clinical outcomes of the addition of low-dose dopamine in furosemide treatment in patients hospitalized for acute decompensated HF. Methods: A total of 62 patients hospitalized for acute decompensation of HF, were randomly allocated to one of the following three groups: i. LDF (low-dose furosemide), ii. HDF (high-dose furosemide) and, iii. LDFD (low-dose furosemide and dopamine). Primary outcomes of the present analysis were biochemical and neurohormonal indices (i.e., urea, creatinine, hemoglobin, electrolytes, natriuretic peptides, troponin, renin, angiotensin, aldosterone, adrenaline, noradrenaline). Secondary endpoints included clinical outcomes (i.e., length of stay, in-hospital mortality, 2-month mortality and rehospitalization, and 1-year mortality and rehospitalization). Results: Urea and creatinine levels were similar for each day among the three groups (p > 0.05). The amount of urine was similar among the three groups per measurement at 2, 4, 6 and at 8 h (p > 0.05). Biochemical and neurohormonal indices as well as clinical outcomes did not differ among patients receiving different doses of furosemide, nor in patients receiving furosemide in combination with dopamine (p > 0.05). Conclusions: Although the addition of low-dose dopamine to intravenous furosemide was considered to have some theoretical advantages in maintaining renal function, no significant differences in neurohormonal effects and clinical outcomes were observed in patients hospitalized for acute decompensation of HF.

Keywords: acute heart failure; clinical outcomes; creatinine; dopamine; furosemide; neurohormonal; renal function.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
Urea levels from admission to day 6. Circles = Outliers.
Figure 2
Figure 2
Creatinine levels from admission to day 6. Circles = Outliers.
See this image and copyright information in PMC

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