Exercise tests may sometimes reveal premature ventricular depolarisations. These are considered to be frequent if there are two or more consecutive runs or if they make up more than 10% of all ventricular depolarisations on a 30 second ECG.
A Study by Jouven et al has revealed that after 23 years follow up, men with frequent PVD's have an increased risk of death from cardiovascular causes by more than 2.5%
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