CTICasesDiaphragm Pacing System (NeuRx Diaphragm Pacing System)
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Imaging findings
A quadriplegic patient with a tracheostomy tube and spinal surgery demonstrated small, thin wires or threads anteriorly in relation to both hemidiaphragms on chest radiograph and CT. These were identified as four stimulating electrodes associated with a diaphragm pacing system (specifically a NeuRx Diaphragm Pacing System) implanted for respiratory support.
Key takeaways
Diaphragm pacing systems are implantable devices designed to stimulate the diaphragm in patients with respiratory insufficiency, such as those with high spinal cord injuries. These systems, like the NeuRx system, can be recognized on chest imaging by the presence of multiple (typically four per hemidiaphragm) thin electrode wires implanted anteriorly in relation to the diaphragms. Recognition of these devices is important for patient care and interpreting imaging findings.
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Related Iatrogenic cases
- Esophageal Perforation Post-Transesophageal Echo (TEE)
- Disrupted Pacemaker Left Ventricular Lead
- Migrated Transcatheter Aortic Valve Replacement (TAVR) Valve
- Malpositioned Impella Device
- Iatrogenic Diaphragmatic Herniation of Mesenteric Fat
- Microvascular Plug (MVP) Embolization of Pulmonary Arteriovenous Malformations (AVMs)