New heart mapping technique aims to stop Life-Threatening rhythms

This study tests a new method called decrement evoked potential (DeEP) mapping to guide catheter ablation for ventricular tachycardia (VT) in people with structural heart disease. VT is a fast, dangerous heart rhythm that can cause sudden cardiac arrest. The standard ablation procedure uses heat to destroy diseased heart tissue, but finding the exact trouble spots is often difficult. Researchers will enroll 77 adults with implantable defibrillators and use the DeEP mapping to target ablation more precisely. Patients will be followed for 12 months to see if this approach reduces VT episodes.