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    "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">Heart failure &#40;HF&#41; is a clinical syndrome with a significant public health burden worldwide due to its high prevalence&#44; morbidity and mortality&#46; Its prevalence is predicted to increase by 25&#37; by 2030&#46;<a class="elsevierStyleCrossRef" href="#bib0070"><span class="elsevierStyleSup">1</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">In developed countries&#44; acute HF is the leading cause of hospitalization in individuals aged over 65 years&#44; and is a life-threatening condition that requires urgent assessment and treatment&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">2</span></a> In Portugal&#44; HF is responsible for the highest in-hospital mortality of all cerebrovascular and cardiovascular diseases&#46;<a class="elsevierStyleCrossRef" href="#bib0080"><span class="elsevierStyleSup">3</span></a></p><p id="par0015" class="elsevierStylePara elsevierViewall">Since it is a systemic disease&#44; HF can cause dysfunction in various organs&#44; particularly the kidneys&#46; The term cardiorenal syndrome &#40;CRS&#41; was coined to describe a range of clinical situations involving concomitant worsening of renal and cardiac function&#46; Studies have established the prognostic implications of this syndrome&#44; which is associated with longer hospital stay&#44; higher in-hospital and post-discharge mortality&#44; and higher rehospitalization rates&#46;<a class="elsevierStyleCrossRefs" href="#bib0085"><span class="elsevierStyleSup">4&#8211;6</span></a> The conventional explanation for the worsening of renal function in HF &#8211; renal hypoperfusion due to low cardiac output or hypotension &#8211; has been shown to be inadequate&#44; explaining only certain aspects of the syndrome&#46;</p><p id="par0020" class="elsevierStylePara elsevierViewall">Inotropic therapy is one of the most controversial subjects in the management of acute HF&#46; Various studies have clearly demonstrated many uncertainties concerning the use of these drugs&#46;<a class="elsevierStyleCrossRefs" href="#bib0100"><span class="elsevierStyleSup">7&#8211;9</span></a> While they bring about hemodynamic improvement&#44; they also increase myocardial oxygen demand&#44; promote arrhythmias&#44; and interact with proapoptotic mechanisms&#46; The clinical impact of CRS in these patients led some authors to examine the potential beneficial effects of inotropes on renal function&#46;<a class="elsevierStyleCrossRefs" href="#bib0115"><span class="elsevierStyleSup">10&#44;11</span></a> Inotropes such as dobutamine and levosimendan improve cardiac output and thus renal perfusion&#46; In addition&#44; levosimendan also has a vasodilatory effect on the renal arteries and veins&#44; which may explain its renoprotective effect&#46;<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">12</span></a></p><p id="par0025" class="elsevierStylePara elsevierViewall">In their study published in the current issue of the <span class="elsevierStyleItalic">Journal</span>&#44; Madeira et al&#46;<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">13</span></a> retrospectively assessed the incidence of CRS in 108 consecutive patients admitted for acute HF and requiring inotropes&#44; dividing their sample into two groups according to the inotrope used &#40;levosimendan vs&#46; dobutamine&#41;&#44; in order to determine the predictors of CRS&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">The incidence of CRS was higher in the dobutamine group than in the levosimendan group &#40;49&#37; vs&#46; 77&#37;&#44; p&#60;0&#46;01&#41;&#44; and cystatin C level was the only predictor of the syndrome&#46; In-hospital mortality was also higher in the dobutamine group &#40;9&#37; vs&#46; 42&#37;&#44; p&#60;0&#46;01&#41;&#44; and the presence of CRS and the inotrope used were independent predictors of in-hospital mortality&#46; The authors also observed that recovery of renal function at discharge tended to be incomplete in patients treated with dobutamine&#44; in contrast to patients selected for levosimendan perfusion&#44; who had a complete recovery&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">The study is interesting and contributes to the scientific evidence&#44; seeing that knowledge of how to manage acute HF with inotropes is limited and that the study population was of real-world acute HF patients&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">However&#44; the fact that it was retrospective&#44; and the heterogeneity of the study population&#44; limit the applicability of the results and mean that firm conclusions cannot be drawn concerning the superiority of one inotrope or the other&#46; The patients in the dobutamine group may have had a higher baseline risk and hence a worse initial prognosis&#44; since they were older&#44; with lower hemoglobin and systolic blood pressure on admission&#44; and were more often treated with vasopressors&#44; renal replacement therapy and mechanical ventilation&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">Thus&#44; although levosimendan is a promising drug for patients with acute HF and renal impairment&#44; the challenge remains to explore in more detail the differences between the various inotropes available for treatment of acute HF and their potential beneficial effects&#46;</p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Conflicts of interest</span><p id="par0050" class="elsevierStylePara elsevierViewall">The author has no conflicts of interest to declare&#46;</p></span></span>"
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Editorial Comment
Inotropes for the management of acute heart failure and their renal repercussions: Are they all the same?
Inotrópicos na abordagem da insuficiência cardíaca aguda e sua repercussão renal – serão todos iguais?
Inês Rangel
Serviço de Cardiologia, Hospital Garcia de Orta, Almada, Portugal
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    "titulo" => "Inotropes for the management of acute heart failure and their renal repercussions&#58; Are they all the same&#63;"
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    "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">Heart failure &#40;HF&#41; is a clinical syndrome with a significant public health burden worldwide due to its high prevalence&#44; morbidity and mortality&#46; Its prevalence is predicted to increase by 25&#37; by 2030&#46;<a class="elsevierStyleCrossRef" href="#bib0070"><span class="elsevierStyleSup">1</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">In developed countries&#44; acute HF is the leading cause of hospitalization in individuals aged over 65 years&#44; and is a life-threatening condition that requires urgent assessment and treatment&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">2</span></a> In Portugal&#44; HF is responsible for the highest in-hospital mortality of all cerebrovascular and cardiovascular diseases&#46;<a class="elsevierStyleCrossRef" href="#bib0080"><span class="elsevierStyleSup">3</span></a></p><p id="par0015" class="elsevierStylePara elsevierViewall">Since it is a systemic disease&#44; HF can cause dysfunction in various organs&#44; particularly the kidneys&#46; The term cardiorenal syndrome &#40;CRS&#41; was coined to describe a range of clinical situations involving concomitant worsening of renal and cardiac function&#46; Studies have established the prognostic implications of this syndrome&#44; which is associated with longer hospital stay&#44; higher in-hospital and post-discharge mortality&#44; and higher rehospitalization rates&#46;<a class="elsevierStyleCrossRefs" href="#bib0085"><span class="elsevierStyleSup">4&#8211;6</span></a> The conventional explanation for the worsening of renal function in HF &#8211; renal hypoperfusion due to low cardiac output or hypotension &#8211; has been shown to be inadequate&#44; explaining only certain aspects of the syndrome&#46;</p><p id="par0020" class="elsevierStylePara elsevierViewall">Inotropic therapy is one of the most controversial subjects in the management of acute HF&#46; Various studies have clearly demonstrated many uncertainties concerning the use of these drugs&#46;<a class="elsevierStyleCrossRefs" href="#bib0100"><span class="elsevierStyleSup">7&#8211;9</span></a> While they bring about hemodynamic improvement&#44; they also increase myocardial oxygen demand&#44; promote arrhythmias&#44; and interact with proapoptotic mechanisms&#46; The clinical impact of CRS in these patients led some authors to examine the potential beneficial effects of inotropes on renal function&#46;<a class="elsevierStyleCrossRefs" href="#bib0115"><span class="elsevierStyleSup">10&#44;11</span></a> Inotropes such as dobutamine and levosimendan improve cardiac output and thus renal perfusion&#46; In addition&#44; levosimendan also has a vasodilatory effect on the renal arteries and veins&#44; which may explain its renoprotective effect&#46;<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">12</span></a></p><p id="par0025" class="elsevierStylePara elsevierViewall">In their study published in the current issue of the <span class="elsevierStyleItalic">Journal</span>&#44; Madeira et al&#46;<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">13</span></a> retrospectively assessed the incidence of CRS in 108 consecutive patients admitted for acute HF and requiring inotropes&#44; dividing their sample into two groups according to the inotrope used &#40;levosimendan vs&#46; dobutamine&#41;&#44; in order to determine the predictors of CRS&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">The incidence of CRS was higher in the dobutamine group than in the levosimendan group &#40;49&#37; vs&#46; 77&#37;&#44; p&#60;0&#46;01&#41;&#44; and cystatin C level was the only predictor of the syndrome&#46; In-hospital mortality was also higher in the dobutamine group &#40;9&#37; vs&#46; 42&#37;&#44; p&#60;0&#46;01&#41;&#44; and the presence of CRS and the inotrope used were independent predictors of in-hospital mortality&#46; The authors also observed that recovery of renal function at discharge tended to be incomplete in patients treated with dobutamine&#44; in contrast to patients selected for levosimendan perfusion&#44; who had a complete recovery&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">The study is interesting and contributes to the scientific evidence&#44; seeing that knowledge of how to manage acute HF with inotropes is limited and that the study population was of real-world acute HF patients&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">However&#44; the fact that it was retrospective&#44; and the heterogeneity of the study population&#44; limit the applicability of the results and mean that firm conclusions cannot be drawn concerning the superiority of one inotrope or the other&#46; The patients in the dobutamine group may have had a higher baseline risk and hence a worse initial prognosis&#44; since they were older&#44; with lower hemoglobin and systolic blood pressure on admission&#44; and were more often treated with vasopressors&#44; renal replacement therapy and mechanical ventilation&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">Thus&#44; although levosimendan is a promising drug for patients with acute HF and renal impairment&#44; the challenge remains to explore in more detail the differences between the various inotropes available for treatment of acute HF and their potential beneficial effects&#46;</p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Conflicts of interest</span><p id="par0050" class="elsevierStylePara elsevierViewall">The author has no conflicts of interest to declare&#46;</p></span></span>"
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ISSN: 21742049
Original language: English
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Idiomas
Revista Portuguesa de Cardiologia (English edition)
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