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Artículo original
Empeoramiento de la función renal en la insuficiencia cardiaca aguda: interpretación condicionada por la hemoconcentración y rangos de beneficio, seguridad y daño

Worsening renal function in acute heart failure: a hemoconcentration-conditioned interpretation with ranges of benefit, safety, and harm

Agustín Fernández-CisnalaRafael de la EspriellabcPedro López-AyaladGemma DonaireeGema MiñanabcEnrique SantasbcCésar Romero MenoraMiguel LorenzobcMarta Cobo-MarcoscfPau LlàcergJosé Luis GórrizhJan BiegusijJulio Núñezbc
https://doi.org/10.1016/j.recesp.2026.06.010
Material adicional
Imagen extra
10.1016/j.recesp.2026.06.010
Resumen
Introducción y objetivos

Los incrementos de creatinina durante el tratamiento de la insuficiencia cardiaca aguda pueden aparecer junto con hemoconcentración y descongestión, pero los rangos de creatinina asociados con menor riesgo, seguridad o daño no están bien definidos.

Métodos

Se estudiaron 2.043 ingresos consecutivos por insuficiencia cardiaca aguda entre 2014 y 2021. Las exposiciones principales fueron el incremento máximo intrahospitalario de creatinina (ΔCr) y el cambio de hemoglobina (ΔHb). Los modelos incluyeron splines cúbicos restringidos para ΔCr, ΔHb continua y su interacción. La mortalidad y los episodios compuestos se analizaron con modelos de Cox; la primera rehospitalización por cualquier causa y por insuficiencia cardiaca, con modelos de Fine-Gray. El contraste principal de ΔHb fue el contraste basado en el rango intercuartílico observado (+1,3g/dl), no un punto de corte de subgrupo.

Resultados

La mediana de edad fue de 77 años [69-83] y el 57,6% de los ingresos correspondieron a varones. En contexto de hemoconcentración, se identificaron rangos de ΔCr asociados con menor riesgo para mortalidad (0,10-0,18mg/dl), primera rehospitalización por cualquier causa (0,06-0,25mg/dl), primera rehospitalización por insuficiencia cardiaca (0,00-0,32mg/dl) y muerte o primera rehospitalización por cualquier causa (0,10-0,23mg/dl). Los umbrales de daño aparecieron por encima de 0,61, 0,98 y 0,91mg/dl respectivamente; no se identificó umbral de daño para rehospitalización por insuficiencia cardiaca.

Conclusiones

Entre los ingresos por insuficiencia cardiaca aguda con hemoconcentración, pequeños incrementos de creatinina se asociaron con menor riesgo, mientras que incrementos mayores se relacionaron con pérdida de beneficio y, para algunos episodios, daño. Estos hallazgos apoyan una interpretación continua y dependiente del contexto del empeoramiento de la función renal durante la descongestión.

Palabras clave

Insuficiencia cardiaca
Creatinina
Hemoglobina
Hospitalización
Mortalidad

Abreviaturas

EFR
IC
IC95%
ICA

Identifíquese

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