Potassium currents in isolated human atrial and ventricular cardiocytes.


The whole-cell configuration of the patch-clamp technique was applied to study and compare ion currents in single ventricular and atrial cardiocytes isolated from human myocardium. In ventricular cardiocytes the K+ inward rectifier current (IK1) was three times larger than in atrial cardiocytes, while its inactivation kinetics were twice as slow when… (More)


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