Challenges and adverse events in pediatric hypoglossal nerve stimulation.

Hypoglossal nerve stimulation was recently FDA approved for use in children with Down Syndrome and persistent obstructive sleep apnea. Although there is a robust experience in hypoglossal nerve stimulation in adults, we observed several challenges that are unique to providing this therapy to a complex pediatric population with a high rate of sensory processing disorders. We sought to review the adverse events and challenges to inform clinicians as hypoglossal nerve stimulation becomes a more accessible option for this complex population. Retrospective case series of children with Down Syndrome and persistent OSA who underwent hypoglossal nerve stimulation. Inclusion and exclusion criteria included Down Syndrome, age 10-22 years, persistent severe OSA after adenotonsillectomy (AHI>10 with <25 % central or mixed events), inability to tolerate positive airway pressure, and absence of concentric palatal collapse on sleep endoscopy. Patients were identified and their charts were reviewed. Adverse events and their subsequent management were recorded. The major outcome variable was the total number of adverse events. A total of 53 patients underwent implantation of a hypoglossal nerve stimulator; 35 (66 %) patients were male and the average age at implantation was 15.1 years (standard deviation 3.0y). A total of 30 adverse events were noted, including 17 nonserious and 13 serious. The most common nonserious complications included temporary tongue discomfort, rash at the surgical site, and cellulitis. Serious complications included readmission (for cellulitis, pain, and device extrusion), reoperation (most commonly for battery depletion) and pressure ulcer formation. Hypoglossal nerve stimulation provides a much-needed therapy for children with DS and persistent OSA after adenotonsillectomy. Although there is a robust experience in providing this treatment to adults, many considerations must be made when adapting this technology to a pediatric population with a high rate of sensory processing disorders.

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