Pediatric Down Syndrome Post-Approval Study

This is a multi-center, prospective, single-arm study conducted under a common implant and follow-up protocol. The objective will be to follow sixty (60) adolescents (13 - 18), with Down Syndrome and severe sleep apnea for 5-years after undergoing implant of the Inspire Upper Airway Stimulation (UAS) system. The objective of the study is to provide an ongoing safety and effectiveness assessment of the Inspire UAS System in the Pediatrics Down Syndrome population. Prior to implant subjects will be required to meet eligibility criteria that is based on an in-lab PSG, surgical consultation and drug induced sleep endoscopy, as well as other assessments. Subjects will also complete quality of life questionnaires. During the 5-year follow-up period, data will be collected at the time of implant, and at multiple follow-up visits through five years post-implant. At each of these visits, safety information (adverse events), sleep data, therapy usage, and quality of life will be collected. A total of sixty (60) subjects with even distribution across the age range will be implanted at a minimum of five (5) clinical centers in the US. Subjects will conclude their participation in the study at the end of their 5 year follow-up visit.