CTICasesHypoglossal nerve stimulator-induced pneumothorax
Imaging findings
Chest radiograph and CT demonstrate a hypoglossal nerve stimulator device with a stimulation lead tunneled into the neck and a sensing lead placed in the intercostal space, associated with an acute, ipsilateral pneumothorax.
Key takeaways
A hypoglossal nerve stimulator is an implantable device used for obstructive sleep apnea. Placement of the intercostal sensing lead, which monitors diaphragmatic movement during respiration, carries a risk of pleural puncture and subsequent pneumothorax.
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