期刊
OTOLARYNGOLOGY-HEAD AND NECK SURGERY
卷 164, 期 5, 页码 1122-1127出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0194599820963141
关键词
obstructive sleep apnea; hypoglossal nerve stimulation; radiograph; outcomes
资金
- NHLBI NIH HHS [R01 HL144859] Funding Source: Medline
Clinically acquired cephalometric measurements, specifically soft palate size, may help identify optimal candidates for hypoglossal nerve stimulation therapy outcomes.
Objective To determine if clinically acquired cephalometric measurements, specifically soft palate size, can predict hypoglossal nerve stimulation outcomes. Study Design Combined prospective cohort study and retrospective review. Setting US sleep otolaryngology training program. Methods Adults with obstructive sleep apnea and apneahypopnea index greater than 15 events/h who underwent hypoglossal nerve stimulation. Eligible subjects had diagnostic preoperative sleep studies and full-night efficacy postoperative studies for analysis. Lateral neck x-rays were obtained as part of routine clinical care and measured for key cephalometric variables by trained head and neck radiologists. Continuous variables were compared using the Student t test, while chi(2) testing was used for categorical variables. Results Fifty-one patients met all study criteria. On average, patients were white, middle aged, and overweight. Following hypoglossal nerve stimulation, the overall cohort achieved a significant apnea-hypopnea index reduction from 36.7 events/h to 20.6 events/h (P < .01) and a response rate of 47% (defined as apnea-hypopnea index reduction >50% and apnea-hypopnea index <20 events/h). On average, therapy responders had significantly thinner soft palates than nonresponders (13.4 +/- 3.8 mm vs 16.0 +/- 3.4 mm, P = .045). Conclusions Patient-specific anatomic factors, specifically soft palate thickness, may help identify optimal candidates for hypoglossal nerve stimulation. A larger, prospective study including both anatomic and physiologic variables is required to validate these findings.
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