Transcatheter Aortic Valve Replacement (TAVR)-Induced Hemodynamically Unstable Supraventricular Tachycardia in an Elderly Patient With a Complex Cardiovascular History.

Transcatheter aortic valve replacement (TAVR) is an important alternative to surgical aortic valve replacement (SAVR) as it reduces stay length and complication rates. Despite this apparent advantage, clinicians must still be aware of these complications. In this paper, we present a case of an elderly female who had an ICD placed years before presentation, presenting with wide complex tachycardia weeks after the TAVR procedure. In this case, the differentiation between ventricular tachycardia and supraventricular tachycardia with aberrancy proved to be a diagnostic challenge. This case highlights an arrhythmia-related complication stemming from TAVR and the utility of the Implantable cardioverter defibrillator (ICD) as an important diagnostic tool in differentiating these rhythms and confirming the temporal relationship between this arrhythmia and the valve replacement procedure.