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Inicio Medicina Clínica (English Edition) Influence of atrial fibrillation on the mortality of patients with heart failure...
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Vol. 150. Issue 10.
Pages 376-382 (May 2018)
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Vol. 150. Issue 10.
Pages 376-382 (May 2018)
Original article
Influence of atrial fibrillation on the mortality of patients with heart failure with preserved ejection fraction
Influencia de la fibrilación auricular en la mortalidad de los pacientes con insuficiencia cardiaca con fracción de eyección preservada
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Jonathan Francoa,
Corresponding author
jonathan.franco@quironsalud.es

Corresponding author.
, Francesc Formigab, Jose Cepedac, Pau Llacerd, Juan Arévalo-Loridoe, Jose Cerqueirof, Alvaro González-Francog, Francesc Epeldeh, Luis Manzanoi, Manuel Montero Pérez-Barqueroj, representing the group of RICA researchers
a Servicio de Medicina Interna, Hospital Universitario Quirón Dexeus, Barcelona, Spain
b Programa de Geriatría, Servicio de Medicina Interna, Hospital Universitari de Bellvitge, Institut d’Investigació Biomédica de Bellvitge (IDIBELL), L’Hospitalet de Llobregat, Barcelona, Spain
c Servicio de Medicina Interna, Hospital Vega Baja, Orihuela, Alicante, Spain
d Servicio de Medicina Interna, Hospital de Manises, Manises, Valencia, Spain
e Servicio de Medicina Interna, Hospital Comarcal de Zafra, Zafra, Badajoz, Spain
f Servicio de Medicina Interna, Hospital Universitario Lucus Augusti, Lugo, Spain
g Servicio de Medicina Interna, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
h Servicio de Medicina Interna, Corporació Sanitària Parc Taulí, Sabadell, Barcelona, Spain
i Servicio de Medicina Interna, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
j Servicio de Medicina Interna, Hospital Reina Sofía, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Universidad de Córdoba, Córdoba, Spain
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Tables (5)
Table 1. Baseline characteristics of patients with heart failure with preserved ejection fraction according to the presence or absence of atrial fibrillation.
Table 2. Baseline characteristics of the group of patients with heart failure with preserved ejection fraction and atrial fibrillation, according to whether the latter is chronic or new-onset.
Table 3. Univariate analysis of mortality and readmissions at one year of follow-up according to whether atrial fibrillation is chronic or new-onset.
Table 4. Univariate analysis of mortality, readmissions and cardiovascular events at one year of follow-up according to the presence or absence of atrial fibrillation.
Table 5. Multivariate analysis for total mortality, cardiovascular mortality and re-admissions using the Cox regression model.
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Abstract
Introduction and objectives

The impact of atrial fibrillation (AF) on the prognosis of heart failure with preserved ejection fraction (HFpEF) is still the subject of debate. We analysed the influence of AF on the prognosis on mortality and readmission in patients with HFpEF.

Methods

Prospective observational study in 1971 patients with HFpEF, who were admitted for acute heart failure. Patients were divided into 2 groups according to the presence or absence of AF. We analysed mortality, readmissions and combined mortality/readmissions at one-year follow-up.

Results

A total of 1177 (59%) patients had AF, mean age 80.3 (7.8) years and 1233 (63%) were women. Patients with HFpEF and AF were older, female, greater valvular aetiology and lower comorbidity measured by the Charlson index. At the one-year follow-up, 430 (22%) patients had died and 840 (43%) had been readmitted. In the 2 groups analysed, there was no difference in all-cause mortality (22 vs. 21%; p=0.739, AF vs. no-AF, respectively) or cardiovascular causes (9.6 vs. 8.2%; p=0.739, AF vs. no-AF, respectively). In the multivariable analysis, factors associated with higher mortality were: age, male, valvular aetiology, uric acid, and comorbidity. In the analysis of the subgroup with HFpEF with AF, the presence of chronic AF compared to de novo AF was associated with higher mortality (HR 1716; 95% CI 1099–2681; p=0.018).

Conclusions

In patients with HFpEF, the presence of AF is frequent. During the one-year follow-up, the presence of AF does not influence mortality or readmissions in patients with HFpEF.

Keywords:
Heart failure
Preserved ejection fraction
Atrial fibrillation
Mortality
Hospital readmission
Resumen
Introducción y objetivos

La información del impacto de la fibrilación auricular (FA) en el pronóstico de los pacientes con insuficiencia cardiaca con fracción de eyección preservada (IC-FEP) es controvertido. Se analizó el pronóstico en cuanto a la mortalidad y los reingresos al año de los pacientes con IC-FEP y FA.

Métodos

Estudio observacional y prospectivo en 1.971 pacientes con IC-FEP, que presentan un ingreso por IC aguda. Los pacientes se dividieron en 2 grupos según la presencia o no de FA. Analizamos la mortalidad, los reingresos y el combinado mortalidad/reingresos al año de seguimiento.

Resultados

Un total de 1.177 (59%) pacientes presentaban FA, con una edad media de 80,3 (7,8) años, y de ellos, 1.233 (63%) eran mujeres. El paciente con IC-FEP y FA tenía una mayor edad, era del sexo femenino y presentaba más frecuentemente un origen valvular y una menor comorbilidad medida por el índice de Charlson. Al año de seguimiento, 430 (22%) pacientes murieron y 840 (43%) fueron reingresados. Entre los 2 grupos analizados no hubo diferencia en la mortalidad por todas las causas (22 vs. 21%; p=0,739, FA vs. no FA, respectivamente) ni por causas cardiovasculares (9,6 vs. 8,2%; p=0,739, FA vs. no FA, respectivamente). En el análisis multivariable se asociaron con mayor mortalidad: la edad, el sexo masculino, la etiología valvular, la hiperuricemia y la comorbilidad. En el análisis del subgrupo con IC-FEP con FA, la presencia de FA crónica comparada con la FA de novo se asoció con una mayor mortalidad (HR 1,716; IC 95% 1,099-2,681; p=0,018).

Conclusiones

En pacientes con IC-FEP es frecuente la presencia de FA. Durante el seguimiento a un año, la presencia de FA no influye en la mortalidad ni en los reingresos hospitalarios en pacientes con IC-FEP.

Palabras clave:
Insuficiencia cardiaca
Fracción de eyección preservada
Fibrilación auricular
Mortalidad
Reingreso

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