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Experiences with phrenic nerve pacing in children
Insights
Radiofrequency phrenic nerve pacing offers a valuable rehabilitative tool for children with spinal cord injuries and ventilator dependency. This innovative approach aids in managing respiratory function, improving outcomes for these severely disabled young patients.
Area of Science:
- Pediatric Rehabilitation
- Neurology
- Biomedical Engineering
Background:
- Spinal cord injury in children can lead to ventilator dependency, significantly impacting quality of life.
- Restoring independent respiration is a critical goal in the comprehensive management of pediatric spinal cord injury.
Observation:
- Four children with spinal cord injuries (ages 6-9 at injury) received radiofrequency phrenic nerve pacemakers.
- Implantation occurred 15-47 months post-injury, with up to 59 months of follow-up.
- Pacing involved bipolar (neck) or monopolar (mediastinal) electrode placement.
Findings:
- No complications related to pacemaker dysfunction were observed postoperatively.
- Selective pacing schedules were developed to minimize issues associated with external mechanical ventilation.
- One patient, on full-time pacing, died from viral myocarditis unrelated to the device.
Implications:
- Radiofrequency phrenic nerve pacing demonstrates significant value in the rehabilitative care of ventilator-dependent children with spinal cord injuries.
- This technology can enhance respiratory independence and overall management for severely disabled pediatric patients.
- Further research into long-term efficacy and patient selection is warranted.
Abstract:
We report a series of four spinal cord-injured children with ventilator dependency who were implanted with radiofrequency phrenic nerve pacers. At injury, their ages ranged from 6 to 9 years. Implantation occurred from 15 to 47 months following injury. The longest term of pacing has been 59 months. One patient, who was being paced full-time, died suddenly at 32 months of a viral myocarditis. Two patients underwent bipolar phrenic implantation in the neck, while two other patients underwent bilateral thoracotomy with monopolar electrode implantation in the mediastinum. There have been no complications related to pacer dysfunction in the postoperative course. Selective pacing schedules have been developed to minimize problems related with external mechanical ventilation. Radiofrequency phrenic nerve pacing is of value in the complete rehabilitative management of these severely disabled children.