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Factors related to TdP development.
| Female sex |
| Bradycardia |
| Hypokalaemia |
| Heart failure |
| Ventricular hypertrophy |
| Recent cardioversion from atrial fibrillation |
| High concentration of the drug with known, possible or conditional risk of TdP |
| Baseline QTc prolongation |
| Rapid rate of infusion of QTc-prolonging drug |
| Subclinical long QTc syndrome |
| Ion channel polymorphisms |
| Severe hypomagnesaemia |
