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      Un novedoso agente en el tratamiento de la insuficiencia cardiaca con función sistólica deprimida Translated title: A novel agent in the treatment of heart failure with depressed systolic function

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          Abstract

          Resumen Introducción: Se revisará la evolución del tratamiento farmacológico de la insuficiencia cardiaca (IC) en los últimos 25 an˜os, desde el concepto de tratamiento con vasodilatadores, pasando por el bloqueo o inhibición del sistema renina-angiotensina-aldosterona y la inhibición betaadrenérgica y su importante contribución en la disminución de la morbimortalidad por IC, el papel de los péptidos natriuréticos y, finalmente, se conocerá uno de los estudios más importantes en el área cardiológica y específicamente en el manejo de la IC, en el cual se demuestra un enfoque modulador de los sistemas neuro humorales que se activan en estos pacientes. Objetivos: La IC constituye la etapa final de la mayoría de las enfermedades cardiovasculares, con una alta tasa de hospitalización y de morbimortalidad cardiovascular, siendo, por lo tanto, de interés constante la necesidad de encontrar un agente terapéutico innovador que disminuya significativamente estas complicaciones y también que mejore la calidad de vida de los que la presentan. Metodología: Se realizará una descripción del PARADIGM-HF Clinical Trial, que utilizó un compuesto sacubitrilo/valsartán para el manejo de la IC con un mecanismo modulador diferente del concepto de bloqueador de sistemas deletéreos que se activan cuando un paciente presenta síntomas y signos de IC. Conclusiones: La muerte por causas cardiovasculares u hospitalización por IC (el punto final primario) se produjo en 914 pacientes (21.8%) en el grupo sacubitrilo/valsartán y 1,117 pacientes (26.5%) en el grupo de enalapril (razón de riesgo en el grupo sacubitrilo/valsartán, 0.80; intervalo de confianza (IC) del 95%: 0.73 a 0.87; p < 0.001 (exacta p = 4.0 × 10 - 7)). De los pacientes que recibieron sacubitrilo/valsartán, 537 (12.8%) fueron hospitalizados por IC, en comparación con los 658 pacientes (15.6%) que recibieron enalapril (razón de riesgo, 0.79; IC del 95%, 0.71 a 0.89; p < 0.001). Un total de 711 pacientes (17.0%) en el grupo sacubitrilo/valsartán y 835 pacientes (19.8%) en el grupo de enalapril murió (razón de riesgo de muerte por cualquier causa, 0.84; IC del 95%, 0.76 a la 0.93; p < 0.001).

          Translated abstract

          Abstract Introduction: A review is presented on the evolution of the pharmacological treatment of heart failure (HF) in the last 25 years, from the concept of treatment with vasodilators to the blocking or inhibition of the renin angiotensin aldosterone system. Beta-adrenergic inhibition and its important contribution in the reduction of morbidity and mortality due to HF will be discussed along with the role of the natriuretic peptides. One of the most important studies in the cardiology area, and specifically in the management of HF, is presented, in which an approach is demonstrated of the modulator of the neurohumoral systems that are activated in these patients. Objectives: HF is the final stage of most cardiovascular diseases, and has a high rate of hospital admission, as well as cardiovascular morbidity and mortality. Therefore, there is constant interest in the need to find an innovative therapeutic agent that significantly reduces these complications and that improves the quality of life of those who suffer from it. Methods: A description will be presented of the PARADIGM-HF Clinical Trial using a sacubitril/valsartán compound for the management of HF with a modulating mechanism different from the concept of a deleterious system blocker that is activated when a patient has symptoms and signs of heart failure. Conclusions: Death due to cardiovascular causes, or hospital admission due to heart failure (the primary endpoint) occurred in 914 patients (21.8%) in the Sacubitril / valsartán group, and 1117 patients (26.5%) in the enalapril group (risk ratio in the sacubitril / valsartán group, 0.80, with a 95% confidence interval [CI]: 0.73 to 0.87, P<0.001 ;exact P= 4.0 × 10 --7;). Of the patients receiving sacubitril / valsartán, 537 (12.8%) were hospitalised due to heart failure, compared with 658 patients (15.6%) receiving enalapril (hazard ratio 0.79, 95% CI: 0.71 to 0.89, P<.001). A total of 711 patients (17.0%) in the sacubitril / valsartán group, and 835 patients (19.8%) in the enalapril group, died (all-cause death rate, 0.84, 95% CI: 0.76 to 0.93, P<.001)

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          Most cited references37

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          The effect of digoxin on mortality and morbidity in patients with heart failure.

          (1997)
          The role of cardiac glycosides in treating patients with chronic heart failure and normal sinus rhythm remains controversial. We studied the effect of digoxin on mortality and hospitalization in a randomized, double-blind clinical trial. In the main trial, patients with a left ventricular ejection fraction of 0.45 or less were randomly assigned to digoxin (3397 patients) or placebo (3403 patients) in addition to diuretics and angiotensin-converting-enzyme inhibitors (median dose of digoxin, 0.25 mg per day; average follow-up, 37 months). In an ancillary trial of patients with ejection fractions greater than 0.45, 492 patients were randomly assigned to digoxin and 496 to placebo. In the main trial, mortality was unaffected. There were 1181 deaths (34.8 percent) with digoxin and 1194 deaths (35.1 percent) with placebo (risk ratio when digoxin was compared with placebo, 0.99; 95 percent confidence interval, 0.91 to 1.07; P=0.80). In the digoxin group, there was a trend toward a decrease in the risk of death attributed to worsening heart failure (risk ratio, 0.88; 95 percent confidence interval, 0.77 to 1.01; P=0.06). There were 6 percent fewer hospitalizations overall in that group than in the placebo group, and fewer patients were hospitalized for worsening heart failure (26.8 percent vs. 34.7 percent; risk ratio, 0.72; 95 percent confidence interval, 0.66 to 0.79; P<0.001). In the ancillary trial, the findings regarding the primary combined outcome of death or hospitalization due to worsening heart failure were consistent with the results of the main trial. Digoxin did not reduce overall mortality, but it reduced the rate of hospitalization both overall and for worsening heart failure. These findings define more precisely the role of digoxin in the management of chronic heart failure.
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            Natriuretic peptides.

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              Effect of vasodilator therapy on mortality in chronic congestive heart failure. Results of a Veterans Administration Cooperative Study.

              To evaluate the effects of vasodilator therapy on mortality among patients with chronic congestive heart failure, we randomly assigned 642 men with impaired cardiac function and reduced exercise tolerance who were taking digoxin and a diuretic to receive additional double-blind treatment with placebo, prazosin (20 mg per day), or the combination of hydralazine (300 mg per day) and isosorbide dinitrate (160 mg per day). Follow-up averaged 2.3 years (range, 6 months to 5.7 years). Mortality over the entire follow-up period was lower in the group that received hydralazine and isosorbide dinitrate than in the placebo group. This difference was of borderline statistical significance. For mortality by two years, a major end point specified in the protocol, the risk reduction among patients treated with both hydralazine and isosorbide dinitrate was 34 percent (P less than 0.028). The cumulative mortality rates at two years were 25.6 percent in the hydralazine--isosorbide dinitrate group and 34.3 percent in the placebo group; at three years, the mortality rate was 36.2 percent versus 46.9 percent. The mortality-risk reduction in the group treated with hydralazine and isosorbide dinitrate was 36 percent by three years. The mortality in the prazosin group was similar to that in the placebo group. Left ventricular ejection fraction (measured sequentially) rose significantly at eight weeks and at one year in the group treated with hydralazine and isosorbide dinitrate but not in the placebo or prazosin groups. Our data suggest that the addition of hydralazine and isosorbide dinitrate to the therapeutic regimen of digoxin and diuretics in patients with chronic congestive heart failure can have a favorable effect on left ventricular function and mortality.
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                Author and article information

                Journal
                acm
                Archivos de cardiología de México
                Arch. Cardiol. Méx.
                Permanyer Publications (Ciudad de México, Ciudad de México, Mexico )
                1405-9940
                1665-1731
                December 2018
                : 88
                : 4
                : 287-297
                Affiliations
                [1] Guayaquil orgnameFacultad de Ciencia Medicas de la Universidad de Guayaquil Ecuador
                [4] Guayaquil orgnameSociedad Ecuatoriana de Cardiología Ecuador
                [2] Guayaquil orgnameHospital General Luis Vernaza orgdiv1Servicio de Cardiología Ecuador
                [3] Guayaquil orgnameSociedad de Lucha contra el Cáncer Ecuador
                Article
                S1405-99402018000400287 S1405-9940(18)08800400287
                10.1016/j.acmx.2018.01.003
                52d882aa-3ea2-491a-a95e-4dcbbe571f99

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 22 January 2018
                : 03 August 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 45, Pages: 11
                Product

                SciELO Mexico

                Categories
                Artículo de revisión

                Reduced ejection fraction,Péptido natriurético tipo B,Heart failure,Ecuador,Nesiritide,Nesiritida,Fracción eyección reducida,Insuficiencia cardiaca,Type B-natriuretic peptide

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