Objective: To measure long-term quality-of-life (QOL) improvement following contemporary multilevel upper airway reconstruction surgery, compared with continuous positive airway pressure (CPAP) therapy. Secondary aims were to investigate factors determining clinical effectiveness and QOL impact of reported side effects.
Design: Cohort study.
Subjects and methods: Consecutive, simultaneously treated adult patients with moderate-severe obstructive sleep apnea (OSA) having upper airway surgery (N=77) or CPAP (N=89) therapy were studied by questionnaire. Glasgow Benefit Inventory (GBI), change in snoring status and Epworth Sleepiness Scale (ESS), subjective CPAP compliance, and side effects in both groups were measured at mean+/-SEM 44.12+/-5.78 months (3.68+/-0.48 years) after commencement of therapy.
Results: No significant difference was seen between surgical outcomes for GBI, snoring, or ESS and CPAP controls. Multivariate analysis showed reduction in Respiratory Disturbance Index (RDI) predicted postoperative snoring and ESS, but not GBI outcomes. Snoring control and GBI were related to CPAP compliance (P<0.001). CPAP side effects (reported in 26%) significantly reduced the QOL benefit of treatment, independent of compliance. Surgical complications (occurring in 44%) did not affect QOL treatment benefit.
Conclusion: Patients with poor CPAP compliance and/or significant side effects of CPAP therapy (45% of cases in this series) should be evaluated for contemporary upper airway reconstructive surgery.