Conclusions
We presented a case report of severed epicardial atrial lead salvage using an IS-1 lead extender, in a 37-year-old patient with Fontan palliation and failing Fontan physiology. Lead extenders can be used to salvage severed pacemaker leads in patients for whom implantation of new leads is not promptly feasible due to their anatomy and/or clinical status. Bipolar IS-1 lead extenders can be used even if only the anode of a severed lead is recoverable, with adequate unipolar sensing and pacing. As the long-term durability of the repair that we present here is unknown we do not recommend it for patients who are pacemaker-dependent, or as a durable solution for any patient, but rather as a temporizing intervention.