1. Based upon the results of the tests, the patient's risk of ventricular tachyarrhythmia may be assessed.

2. ‘Additionally, spontaneous rhythms, sustained Bigeminies, paroxysmal tachycardias and other tachyarrhythmias were also observed in the different experiment.’

3. Noninvasive measurement of microvolt T wave alternans (TWA) is a promising new method to assess repolarization abnormalities; in experimental studies, TWA was associated with an increased incidence of ventricular tachyarrhythmias.

4. Typical cardiac findings include a rate-corrected QT interval >480 ms, functional 2:1 AV block with Bradycardia, tachyarrhythmias, and congenital heart defects (patent ductus arteriosus, patent foramen ovale, ventricular septal defect, tetralogy of Fallot, hypertrophic