First interventional exchange of a left transvenous phrenic nerve stimulation lead from the novel remedē system.

The remedē system is a novel fully implantable transvenous phrenic nerve stimulation (TPNS) device developed to treat central sleep apnea. No information is published on how to explant or replace its leads. An eighty-one year-old had a fractured lead and we removed it over a wire.

Phrenic nerve stimulation in patients with central sleep apnea: a single‑center experience from pilot and pivotal trials evaluating the remedē System.

Background: Patients with central sleep apnea (CSA) have recently been shown to have improved sleep metrics and quality of life (QoL) with phrenic nerve stimulation (PNS).

Aims: The aim of this study was to report the results of a partnership between cardiology, sleep medicine, and electrophysiology in a single clinical center as well as the enrollment, implantation, and follow‑up experience demonstrating both the safety and efficacy of PNS.

Methods: This analysis included data from the pilot and pivotal trials investigating the effect of PNS using an implantable transvenous system in patients with CSA.

How to implant a phrenic nerve stimulator for treatment of central sleep apnea?

Background: Central sleep apnea (CSA) is a breathing disorder caused by the intermittent absence of central respiratory drive. Transvenous phrenic nerve stimulation is a new therapeutic option, recently approved by the FDA , for the treatment of CSA.

Objective: To describe the technique used to implant the transvenous phrenic nerve stimulation system (the remedē System, Respicardia, Inc).

Suitability of the pericardiophrenic veins for phrenic nerve stimulation: an anatomic study.

Objective: The objective of this study was to assess the potential of the pericardiophrenic veins (PPVs) as conduits for transvenous stimulation of the phrenic nerves. Modulating respiration with transvenous phrenic nerve stimulation via the PPVs might reduce or eliminate the adverse effects of central sleep apnea in heart failure.

Methods: Forty-eight fixed cadavers were dissected to study the anatomic characteristics of the PPVs and related neurovascular structures.

Improved extraction of ePTFE and medical adhesive modified defibrillation leads from the coronary sinus and great cardiac vein.

Background: Permanent leads with shocking coils for defibrillation therapy are sometimes implanted in the coronary sinus (CS) and great cardiac vein (GCV). These shocking coils, as documented by pathologic examination of animal investigations, often become tightly encapsulated by fibrosis and can be very difficult to remove.

Methods: One of three configurations of the Guidant model 7109 Perimeter coronary sinus shocking lead was implanted into the distal portion of the GCV of 24 sheep for up to 14 months.