Case report: an unstable wide QRS complexes tachycardia after ablation of a poster-septal accessory pathway What is the mechanism?

AbstractIntroduction:Differentiation of wide QRS complex tachycardia required repeated electrophysiological stimuli and mapping. However, instability of tachycardia would increase the difficulty in differential diagnosis.Symptoms and Clinical findings:In this paper, we reported a wide QRS tachycardi