Thoughts: Broad complex tachycardia VT Toursade's SVT with abberant conduction pathway Any other history? Age? Drugs? OD? Possibly worth a go with adenosine - if SVT may cardiovert it. If not, it depends on history. Previous long QT - overdrive pacing Drug implicated in Toursade's - overdrive pacing, _no_ place for amiodarone Otherwise, go for broad complex tachy guideline from ALS. OD TCA - buckets of bicarb. What did you do? All the best Matt Heywood [log in to unmask]