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ECG as a screening tool: Difference between revisions
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==ECG markers of increased risk of ventricular arrhythmias in ICD patients== | ==ECG markers of increased risk of ventricular arrhythmias in ICD patients== | ||
In a recent study several ECG risk markers were found to be associated with appropiate therapy in ICD patients<cite>Shi</cite>: | In a recent study several ECG risk markers were found to be associated with appropiate therapy in ICD patients<cite>Shi</cite>: | ||
* | * Depressed heart rate variability (HRV) [HR 2.7] | ||
* BBB with large QRS dispersion of > 39 msec (difference between maximal and minimum QRS across 12 leads) [HR 2.9] | * BBB with large QRS dispersion of > 39 msec (difference between maximal and minimum QRS across 12 leads) [HR 2.9] | ||
* Reduced maximal T wave amplitude (<0.4 msec in patients without BBB) [HR 3.8] | * Reduced maximal T wave amplitude (<0.4 msec in patients without BBB) [HR 3.8] | ||