Q. What is ST Depression with Long Diastolic Filling?

For the person with a slow heart rate and a long period of a diastole after a premature ventricular contraction, the next beat is often associated with ST-segment depression. It is well established that the individual has over filling of the ventricle and if the compliance is compromised, the increased diastolic pressure may be associated with ST-segment depression. This is seen repeatedly and correlates well with the diagnosis of clinical ischaemia. It is most commonly recorded after the exercise is terminated. This type of ST-segment depression has not been recognized in very young people with sinus arrhythmia or with heart block.