ERS -Early repolarisation syndrome is known as a benign ECG finding for many decades .Now it is beginning to look dangerous as evidence is accumulating it may have a link with ventricular arrhythmias.
ERS represents complex changes in ionic movements during cardiac repolarisation . (To be specific , it is due to a functional gain of K + ionic channels during phase 3 of action potential).Generally this is a very benign condition. But , what concern us is , it can predispose to ventricular arrhythmias when these patients are confronted with ischemia .
When repolarisation occur early it indirectly shorts the QT interval .We know QT interval is a notorious period in human ECG as both a short and long (<320ms, > 460ms) can be dangerous.
Is ERS a marker for potential cause for primary VF ?
Dr.S.Venkatesan MD 