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The Cardiology of the Future is a project of the Spanish Society of Cardiology (SEC) whose objectives are as follows: to define the action policies of the SEC; to analyze the trends and changes in the environment that will influence the practice of cardiology in Spain; to define the profile of the cardiologists needed in the future; to propose policies to achieve the objectives resulting from the identified needs; and to identify the role of the SEC in the development and implementation of these policies. This article describes the methodology and the most relevant findings of the final report of this project and the strategic lines to be developed by the SEC in the immediate future, resulting from the analysis performed. The project Cardiologists and the Cardiology of the Future and the creation of this article have been financed through the resources of the SEC. Sí

[Resumen] Introducción y objetivos: Hay patrones electrocardiográficos asociados a mayor riesgo de muerte súbita por arritmias ventriculares. En España no existe información acerca de su prevalencia en la población. El objetivo es estudiar la prevalencia de estos patrones, así como los factores clinicoepidemiológicos asociados a su presencia. Métodos: Subanálisis del estudio OFRECE en el que se estudió la prevalencia de patrones electrocardiográficos de síndrome de Brugada o anomalías del intervalo QT en una muestra representativa de la población española ≥ 40 años. Se dispuso de datos clínicos y electrocardiogramas de todos los participantes. Los electrocardiogramas fueron evaluados de forma independiente por 2 cardiólogos y, en caso de desacuerdo, se consultó con un tercero. Se analizaron las prevalencias ponderadas y los factores clínicos asociados a patrones tipo Brugada o a anomalías del segmento QT. Resultados: Se evaluó a 8.343 individuos (59,2 años, 52,4% mujeres) y se detectaron 12 casos de patrón Brugada (tipo 1, 2 casos; tipo 2, 10 casos; prevalencia ponderada, 0,13%). Para el análisis del QT corregido (QTc) se excluyó a los participantes con bloqueo de rama izquierda o ritmos no sinusales. Las prevalencias ponderadas fueron: QTc corto (< 340 ms) 0,18%, QTc borderline (441-469 ms) 8,33%, QTc largo (criterio ≥ 470 ms) 1,01% y QTc largo (criterio ≥ 480 ms) 0,42%. Conclusiones: El 0,6-1,1% de la población española de edad ≥ 40 años presenta un patrón electrocardiográfico de riesgo de muerte súbita (síndrome de Brugada, QT largo o QT corto). [Abstract] Introduction and objectives: Some electrocardiographic patterns are associated with an increased risk of sudden cardiac death due to ventricular arrhythmias. There is no information on the prevalence of these patterns in the general population in Spain. The objective of this study was to analyze the prevalence of these patterns and associated clinical and epidemiological factors. Methods: This subanalysis of the OFRECE study selected a representative sample of the Spanish population aged ≥ 40 years. We studied the presence or absence of electrocardiographic patterns of Brugada syndrome and QT interval abnormalities. Clinical data and electrocardiograms were available in all participants. Electrocardiograms were evaluated by 2 cardiologists and a third cardiologist was consulted if there was disagreement in the diagnosis. We calculated the weighted prevalence and clinical factors associated with the presence of Brugada-type patterns or QT segment abnormalities Results: Overall, 8343 individuals were evaluated (59.2 years, 52.4% female). There were 12 Brugada cases (type 1, 2 cases; type 2, 10 cases; weighted prevalence, 0.13%). For corrected QT (QTc) analysis, we excluded participants with left bundle branch block or without sinus rhythm. Weighted prevalences were as follows: short QTc ( < 340 ms) 0.18%, borderline QTc (441-469 ms) 8.33%, long QTc ( ≥ 470 ms criterion) 1.01% and long QTc ( ≥ 480 criterion) 0.42%. Conclusions: A total of 0.6% to 1.1% of the Spanish population aged ≥ 40 years has an electrocardiographic pattern associated with a higher risk of sudden death (Brugada syndrome, long QT, or short QT).