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    Influencia de la presi贸n arterial al inicio de las descompensaciones en el pron贸stico de pacientes con insuficiencia cardiaca

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    Fundamento y objetivo: Existe una relaci贸n inversa entre las cifras de presi贸n arterial en las descompensaciones y el pron贸stico de la insuficiencia cardiaca (IC). Las caracter铆sticas de esta relaci贸n no son bien conocidas. El objetivo del estudio fue analizar si esta relaci贸n se mantiene en una cohorte no seleccionada de pacientes con IC y si el tratamiento la modifica. Material y m茅todos: Estudio prospectivo de cohortes de pacientes ingresados por IC descompensada en un servicio de Medicina Interna y seguidos ambulatoriamente en una consulta monogr谩fica. Los pacientes fueron agrupados en funci贸n de la presi贸n arterial sist贸lica (PAS) y diast贸lica (PAD); se analizaron las caracter铆sticas cl铆nicas, la mortalidad global y los reingresos al primer, tercer y sexto mes de seguimiento. Resultados: Se incluyeron 221 pacientes tras un ingreso 铆ndice por IC. Media de edad: 79, 5 a帽os (DE 8, 09); varones: 115. No hubo diferencias significativas en las caracter铆sticas basales de los pacientes en funci贸n de los cuartiles de PAS. Los pacientes con menor PAS (Q1) ten铆an mayor mortalidad (20%, p < 0, 05). No se encontraron diferencias para la PAD. Sin embargo, el an谩lisis de Kaplan-Meier mostr贸 una mayor mortalidad global en los pacientes con menor PAS y PAD (log-rank = 0, 011 y 0, 041, respectivamente). Las caracter铆sticas del tratamiento farmacol贸gico no difer铆an entre los grupos del estudio. Conclusi贸n: En pacientes con IC no seleccionados, las cifras elevadas de PAS al ingreso se asocian con una menor mortalidad durante el seguimiento. El tratamiento farmacol贸gico de la IC no parece influir en la relaci贸n inversa entre la PAS al ingreso y la mortalidad. Background and objective An inverse relationship has been described between blood pressure and the prognosis in heart failure (HF). The characteristics of this relationship are not well unknown. The objective of this study was to determine if this relationship is maintained in a non-selected cohort of patients with HF and if it can be modified by treatment. Material and methods Prospective study of cohorts including patients hospitalized for decompensated HF in Internal Medicine departments and followed as outpatients in a monographic consultation. Patients were classified according to their levels of systolic (SBP) and diastolic blood pressure (DBP). Clinical characteristics, all-cause mortality and readmissions after the first, third and sixth month of follow-up were analysed. Results Two hundred and twenty-one patients were included after their admission to the hospital for acute HF. Mean patient age was 79.5 years(SD 8.09); 115 patients were male. No significant differences between SBP quartiles and basal characteristics were found. Patients with lower SBP (Q1) had higher mortality rates (20%, P聽<聽.05). No significant differences between mortality/readmissions and DBP were found. However, the Kaplan-Meier analysis showed higher all-cause mortality rates for the group of patients with lower SBP and DBP (log-rank聽=聽0.011 and 0.041, respectively). The pharmacological treatment did not differ significantly between both study groups. Conclusion For non-selected patients suffering HF, higher SBP upon the admission is associated with significantly lower all-cause mortality rates during follow-up. Pharmacological treatment of HF does not seem to influence this inverse relationship between SBP at admission and patient mortality
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