Radiofrequency and Cryo‐Ablation Effect on Transvenous Pacing and Defibrillatory Lead Integrity: An In Vitro Study

• DOI: 10.1111/jce.13007
• Publication Date: 2016-05-03T11:18:30Z
• Authors: YOUSEF H. DARRAT; ANUJ AGARWAL; GUSTAVO X. MORALES; JOSEPH THOMPSON; AHMED ABDEL‐LATIF; KELLY WAESPE; LUIGI DI BIASE; ANDREA NATALE; ABHIJIT PATWARDAN; CLAUDE‐SAMY ELAYI
• Keywords: Lead (geology); Cardiac Ablation

Medical societies and cardiac implantable electronic device (CIED) manufacturers recommend avoiding close or direct contact between the body of transvenous leads ablation catheters used to treat arrhythmias. These recommendations are made despite lack clinical studies. However, target myocardium for successful can be contiguous CIED leads.We examine in vitro effects application radiofrequency (RF) cryo-ablation energy on integrity functionality (excluding pacing electrodes defibrillation coils). A saline bath was created mimic milieu. leads, including all commercially available lead insulation materials, were connected a pulse generator placed with an catheter tissue bath. RF delivered under various conditions, maximal power, temperature, impedance via generator. functionality, reflective conductor integrity, evaluated through monitoring during ablation. then visually inspected, examined optic electron microscopy as per protocol. total 42 studied. All showed absence damage at site microscopy. Lead also preserved leads.Catheter using did not affect function aggressive settings. It may reasonable perform when clinically necessary.