Principios básicos de las nuevas estrategias farmacológicas antiarrítmicas en fibrilación auricular.

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Bibliographic Details
Title: Principios básicos de las nuevas estrategias farmacológicas antiarrítmicas en fibrilación auricular.
Alternate Title: Basic mechanisms of the new antiarrhythmic drugs in atrial fibrillation.
Authors: Filgueiras-Rama, David1,2 david.filgueiras@salud.madrid.org, Castrejón, Sergio1, Calvo, Conrado2, Estrada, Alejandro1, Doiny, David1, Ortega, Marta1, Berenfeld, Omer2, Merino, José L.1, Jalife, José2
Source: Archivos de Cardiología de México. abr-jun2012, Vol. 82 Issue 2, p139-152. 14p. 5 Diagrams, 2 Charts, 1 Graph.
Subjects: MYOCARDIAL depressants, ATRIAL fibrillation treatment, ARRHYTHMIA, DRUG development, ROTORS
Geographic Terms: SPAIN
Abstract (English): Atrial fibrillation (AF) is the most common sustained arrhythmia seen in clinical practice. Despite of new technological breakthroughs and the understanding of the mechanisms underlying AF, based on animal models and ablation procedures in patients, the antiarrhythmic drugs remain the main therapeutic strategy to restore and maintain the sinus rhythm. New antiarrhythmic drugs are already available in the clinical practice and many others are under development. The new antiarrhythmic drugs have the capability to block atrial-specific ionic currents, which are involved in the maintenance of the arrhythmia. Parallel, increasing evidence supports the use of compounds to regulate the arrhythmogenic atrial substrate involved in the long-term maintenance of the arrhythmia (upstream therapies). This article reviews the new antiarrhythmic drugs and upstream therapies, based on the current knowledge of the mechanisms involved in the maintenance of AF. [ABSTRACT FROM AUTHOR]
Abstract (Spanish): La fibrilación auricular (FA) es la arritmia crónica sostenida más frecuente en la población general. A pesar de los últimos avances tecnológicos y en el entendimiento de sus mecanismos, derivados de modelos experimentales, así como de los procedimientos de ablación en pacientes con FA, los fármacos antiarrítmicos siguen siendo la principal estrategia para la cardioversión y mantenimiento del ritmo sinusal. Nuevas generaciones de fármacos antiarrítmicos han llegado a la práctica clínica, y otros se encuentran en fase de experimentación. Los nuevos fármacos actúan de forma más específica sobre corrientes iónicas auriculares, y al mismo tiempo involucradas en el mantenimiento de la arritmia. Paralelamente, cada vez se da más importancia a la necesidad de actuar sobre el sustrato arritmogénico auricular y los factores que lo promueven, implicados en el mantenimiento a largo plazo de la arritmia (terapias upstream). La presente revisión tiene como objetivo exponer las actuales líneas de desarrollo en fármacos antiarrítmicos y terapias para prevención o retraso del remodelado auricular, con base a los conocimientos mecanísticos que hoy en día se involucran en el mantenimiento de la FA. [ABSTRACT FROM AUTHOR]
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Database: MedicLatina
Description
Abstract:Atrial fibrillation (AF) is the most common sustained arrhythmia seen in clinical practice. Despite of new technological breakthroughs and the understanding of the mechanisms underlying AF, based on animal models and ablation procedures in patients, the antiarrhythmic drugs remain the main therapeutic strategy to restore and maintain the sinus rhythm. New antiarrhythmic drugs are already available in the clinical practice and many others are under development. The new antiarrhythmic drugs have the capability to block atrial-specific ionic currents, which are involved in the maintenance of the arrhythmia. Parallel, increasing evidence supports the use of compounds to regulate the arrhythmogenic atrial substrate involved in the long-term maintenance of the arrhythmia (upstream therapies). This article reviews the new antiarrhythmic drugs and upstream therapies, based on the current knowledge of the mechanisms involved in the maintenance of AF. [ABSTRACT FROM AUTHOR]
ISSN:14059940