Recognition
- • Polymorphic VT with twisting QRS axis around baseline
- • Preceded by long QT
Key findings
- • Often non-sustained, self-limiting episodes
Clinical importance
- • Risk of degeneration to VF / sudden death
Management pearls
- • Stop QT-prolonging drugs
- • Magnesium 2 g IV over 10 min
- • Correct K⁺ ≥4.5
- • Overdrive pacing or isoprenaline if recurrent
- • DC shock if unstable
Related in WardRound
