Key result
Temporary pacing and isoprenaline resolve bradycardia-induced TdP by decreasing QTc and abolishing R-on-T.
Case Report (n=1)
Describes a clinical presentation of bradycardia-induced Torsades de pointes leading to cardiac arrest.
Bradycardia-induced TdP can present as cardiac arrest; hypothesis-generating and requires prospective studies before practice change.
Torsades de pointes (TdP) is a less common type of ventricular tachycardia (VT) characterized by polymorphic VT of changing amplitude and characteristic twists around the isoelectric baseline. It is almost always associated with QT interval prolongation. Unless immediately intervened, it can lead to ventricular fibrillation followed by cardiac arrest. We report a case of a patient with bradycardia-induced TdP who presented to the emergency room with cardiac arrest.
No takes yet. Share an insight, caveat, or question.
Mahanta et al. (2023) conducted a case report in Bradycardia-induced Torsades de Pointes (n=1). Isoprenaline infusion and temporary pacemaker was evaluated on Resolution of ventricular tachycardia and QTc normalization. Temporary pacemaker insertion and isoprenaline infusion successfully decreased QTc, abolished the R-on-T phenomenon, and prevented further ventricular tachycardia in a patient with bradycardia-induced Torsades de Pointes.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: