Entrapment of high-density grid mapping catheter in a percutaneous ventricular assist device pigtail during ventricular tachycardia ablation with percutaneous hemodynamic support

Patients with incessant ventricular tachycardia (VT), sustained VT despite treatment with antiarrhythmic drugs, or shocks from implantable defibrillators are candidates for catheter ablation (CA).1–3 Although ablation can be efficacious, mortality is higher in patients with structural heart disease owing to hemodynamic instability from anesthesia and arrhythmia induction.1,3,4 The PAINESD risk score helps to identify patients at risk of acute hemodynamic decompensation, permitting selection of those likely to benefit from intraprocedural mechanical circulatory support (MCS).