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      Análisis de costo efectividad del uso de metoprolol succinato en el tratamiento de la hipertensión arterial y la falla cardiaca en Colombia Translated title: Analysis of cost effectiveness of the use of metoprolol succinate in the treatment of hypertension and heart failure in Colombia

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          Abstract

          Objetivo: realizar una evaluación de costo-efectividad del uso de metoprolol succinato frente a metoprolol tartrato y carvedilol en el tratamiento de pacientes con insuficiencia cardiaca congestiva e hipertensión arterial en Colombia, desde la perspectiva del tercero pagador. Métodos: el estudio se desarrolló mediante un modelo de Markov simulando la historia natural de la enfermedad para un horizonte temporal de cinco años, para lo cual se tomaron 100 pacientes con edad de 45 años. Se evaluaron como desenlaces tanto las hospitalizaciones como las muertes evitadas. Los datos de probabilidades se obtuvieron de estudios clínicos y los costos de bases de datos de instituciones y opinión de expertos, expresados en pesos colombianos de 2009. Se aplicó una tasa de descuento del 3%. Resultados: el costo del brazo tratado con metoprolol succinato fue el menor, con 299 millones de pesos frente a 364 millones y 346 millones de pesos para carvedilol y metoprolol tartrato, respectivamente. El menor número de hospitalizaciones se presentó con metoprolol succinato, y fue de 24 ingresos en el horizonte de tiempo. En el brazo con carvedilol fue donde ocurrieron menos muertes. Los índices mostraron que el metoprolol succinato fue dominante frente a los otros beta-bloqueadores en las hospitalizaciones evitadas y en las muertes en comparación con metoprolol tartrato. Conclusiones: se comprobó la escasa efectividad del metoprolol tartrato, que además generó los mayores costos de atención dentro del modelo. El carvedilol mostró ligeramente mejores resultados en mortalidad frente a metoprolol succinato aunque con costos mayores. El metoprolol succinato es la mejor opción puesto que es la menos costosa y más efectiva medida en relación con las hospitalizaciones. Para la atención de los pacientes con insuficiencia cardiaca congestiva e hipertensión arterial en Colombia, el tratamiento con metoprolol succinato es la opción más recomendable por su menor costo y mayor efectividad en las condiciones del caso base.

          Translated abstract

          Objective: to conduct an assessment of cost-effectiveness of the use of metoprolol succinate versus metoprolol tartrate and carvedilol in the treatment of patients with congestive heart failure and hypertension in Colombia, from the third party payer's perspective. Methods: the study was conducted using a Markov model simulating the natural history of the disease for a time horizon of five years, taking 100 patients aged 45 years. Both hospitalizations and deaths avoided were evaluated as outcomes. The probability data were obtained from clinical studies and the costs of institutions databases and expert opinion, expressed in Colombian pesos of 2009. We applied a discount rate of 3%. Results: the cost of metoprolol succinate treated arm was the lowest, with 299 million pesos compared to 364 million and 346 million pesos for carvedilol and metoprolol tartrate, respectively. The lower number of hospitalizations occurred with metoprolol succinate, and corresponded with 24 admissions at the time horizon. In the carvedilol arm occurred fewer deaths. The indices showed that metoprolol succinate was dominant over the other beta-blockers in avoiding hospitalizations and deaths in comparison with metoprolol tartrate. Conclusions: we found the low effectiveness of metoprolol tartrate, which also generated the highest costs of care within the model. Carvedilol showed slightly better results in mortality compared to metoprolol succinate but with higher costs. Metoprolol succinate is the best choice since it is less costly and more effective in respect to hospitalizations. For the care of patients with congestive heart failure and hypertension in Colombia, treatment with metoprolol succinate is the most recommended option for its lower cost and greater effectiveness in the base case conditions.

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          Most cited references27

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          The Cardiac Insufficiency Bisoprolol Study II (CIBIS-II): a randomised trial.

          In patients with heart failure, beta-blockade has improved morbidity and left-ventricular function, but the impact on survival is uncertain. We investigated the efficacy of bisoprolol, a beta1 selective adrenoceptor blocker in decreasing all-cause mortality in chronic heart failure. In a multicentre double-blind randomised placebo-controlled trial in Europe, we enrolled 2647 symptomatic patients in New York Heart Association class III or IV, with left-ventricular ejection fraction of 35% or less receiving standard therapy with diuretics and inhibitors of angiotensin-converting enzyme. We randomly assigned patients bisoprolol 1.25 mg (n=1327) or placebo (n=1320) daily, the drug being progressively increased to a maximum of 10 mg per day. Patients were followed up for a mean of 1.3 years. Analysis was by intention to treat. CIBIS-II was stopped early, after the second interim analysis, because bisoprolol showed a significant mortality benefit. All-cause mortality was significantly lower with bisoprolol than on placebo (156 [11.8%] vs 228 [17.3%] deaths with a hazard ratio of 0.66 (95% CI 0.54-0.81, p<0.0001). There were significantly fewer sudden deaths among patients on bisoprolol than in those on placebo (48 [3.6%] vs 83 [6.3%] deaths), with a hazard ratio of 0.56 (0.39-0.80, p=0.0011). Treatment effects were independent of the severity or cause of heart failure. Beta-blocker therapy had benefits for survival in stable heart-failure patients. Results should not, however, be extrapolated to patients with severe class IV symptoms and recent instability because safety and efficacy has not been established in these patients.
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            Clinical Effects of β-Adrenergic Blockade in Chronic Heart Failure

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              The Effect of Spironolactone on Morbidity and Mortality in Patients with Severe Heart Failure.

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                rcca
                Revista Colombiana de Cardiología
                Rev. Colomb. Cardiol.
                Sociedad Colombiana de Cardiologia. Oficina de Publicaciones (Bogota )
                0120-5633
                August 2012
                : 19
                : 4
                : 160-168
                Affiliations
                [1 ] Fundación Salutia Colombia
                Article
                S0120-56332012000400002
                6b4e9ec6-53ec-4632-afe6-f6ec77880591

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Colombia

                Self URI (journal page): http://www.scielo.org.co/scielo.php?script=sci_serial&pid=0120-5633&lng=en
                Categories
                CARDIAC & CARDIOVASCULAR SYSTEMS

                Cardiovascular Medicine
                beta-blocker,sistemic arterial hypertension,heart failure,health economic evaluation,betabloqueantes,hipertensión arterial sistémica,insuficiencia cardiaca,evaluación económica

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