Safety and Management of Magnetic Interactions Between Ipsilateral Cochlear Implantation and Programmable Ventriculoperitoneal Shunts.
Christian J Bernard, Prishae Wilson, Joseph Breen et al.
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Case in brief
Two elderly males with normal pressure hydrocephalus underwent ipsilateral cochlear implantation and programmable ventriculoperitoneal shunt placement. One patient experienced significant alteration in shunt settings postoperatively, necessitating a revision to a locking valve, which allowed for continued cochlear implant use. The second patient showed no interaction between the locking valve and cochlear implant during testing and monitoring.
Diagnostic / clinical pearl
Clinicians should be aware of the potential for magnetic interactions between cochlear implants and programmable ventriculoperitoneal shunts, particularly with non-locking valves, which may require careful preoperative planning and postoperative monitoring.
Why it matters
This case highlights the importance of device compatibility in patients requiring both cochlear implants and programmable shunts, emphasizing the need for tailored surgical strategies to mitigate risks.