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• W2201998028 abstract "Scintigraphy with iodine-123-metaiodobenzylguanidine (123I-MIBG) is a non-invasive tool for the assessment of cardiac sympathetic innervation (CSI) that has proven to be an independent predictor of survival. Recent studies have shown that diabetic patients with heart failure (HF) have a higher deterioration in CSI. It is unknown if 123I-MIBG has the same predictive value for diabetic and non-diabetic patients with advanced HF. An analysis is performed to determine whether CSI with 123I-MIBG retains prognostic utility in diabetic patients with HF, evaluated for a primary prevention implantable cardioverter-defibrillator (ICD). Seventy-eight consecutive HF patients (48 diabetic) evaluated for primary prevention ICD implantation were prospectively enrolled and underwent 123I-MIBG to assess CSI (heart-to-mediastinum ratio – HMR). A Cox proportional hazards multivariate analysis was used to determine the influence of 123I-MIBG images for prediction of cardiac events in both diabetic and non-diabetic patients. The primary end-point was a composite of arrhythmic event, cardiac death, or admission due to HF. During a mean follow-up of 19.5 [9.3–29.3] months, the primary end-point occurred in 24 (31%) patients. Late HMR was significantly lower in diabetic patients (1.30 vs. 1.41, p = 0.014). Late HMR ≤ 1.30 was an independent predictor of cardiac events in diabetic (hazard ratio 4.53; p = 0.012) and non-diabetic patients (hazard ratio 12.31; p = 0.023). Diabetic patients with HF evaluated for primary prevention ICD show a higher deterioration in CSI than non-diabetics; nevertheless 123I-MIBG imaging retained prognostic utility for both diabetic and non-diabetic patients. La gammagrafía con yodo-123-metayodobenzilguanidina (123I-MIBG) es una herramienta de la valoración de la actividad simpática cardiaca (ASC) que ha demostrado ser un predictor independiente de supervivencia. Estudios recientes han demostrado que los pacientes diabéticos con insuficiencia cardiaca (IC) presentan mayor deterioro de la ASC. Si 123I-MIBG tiene el mismo valor predictivo en diabéticos y no diabéticos es desconocido. Analizamos si la evaluación de la ASC con 123I-MIBG mantiene su utilidad pronóstica en pacientes diabéticos con IC evaluados para implante de DAI en prevención primaria. Se incluyeron prospectivamente 78 pacientes (48 diabéticos) consecutivos evaluados para implante de DAI en prevención primaria a los que se les realizó una gammagrafía con 123I-MIBG para evaluar la ASC (índice corazón mediastino – ICM-). Se usó un modelo multivariado de riesgos proporcionales de Cox para analizar la influencia de 123I-MIBG en la predicción de eventos cardiacos tanto en pacientes diabéticos como no diabéticos. La variable principal de resultado es un compuesto de evento arrítmico, muerte cardiaca y hospitalización por IC. Durante una media de seguimiento de 19.5 [9.3–29.3] meses, la variable principal de resultado ocurrío en 24 (31%) de los pacientes. El ICM tardío fue significativamente menor en el grupo de pacientes con diabetes mellitus (1.30 vs 1.41, p = 0.014). Un ICM tardío ≤1,30 fue predictor independiente de eventos cardiacos en pacientes diabéticos (HR 4,53; p = 0,012) y no diabéticos (HR 12,31; p = 0,023). Los pacientes diabéticos con IC grave evaluados para implante de DAI en prevención primaria presentan mayor deterioro de la ASC que los no diabéticos. 123I-MIBG mantiene utilidad pronóstica en pacientes diabéticos y no diabéticos con IC." @default.
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• W2201998028 date "2016-03-01" @default.
• W2201998028 modified "2023-10-01" @default.
• W2201998028 title "Cardiac sympathetic innervation assessed with 123I-MIBG retains prognostic utility in diabetic patients with severe left ventricular dysfunction evaluated for primary prevention implantable cardioverter-defibrillator" @default.
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• W2201998028 doi "https://doi.org/10.1016/j.remn.2015.08.002" @default.
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