Сardioprotective agents with biaromatic structure. Part 5. Potassium Kv1.5-channels blockers

The Kv1.5 potassium channel provides an ultra-rapid delayed rectifier potassium current, I Kur , that acts selectively in human atrial cells. This makes selective Kv1.5 blockade a promising approach to control atrial arrhythmias without the adverse ventricular effects associated with classical hERG-subtype potassium channel blockers (Kv11.1). This review considers all currently known Kv1.5-channel blockers with a biaromatic structure and data on their biological properties. For many of the Kv1.5-selective compounds studied, the ability to prevent the development of atrial arrhythmias without affecting ventricular refractoriness was confirmed.