Background:The prevalence of obstructive sleep apnea (OSA) has been growing over the last few decades, but the treatment outcome differs from person to person. Interest in patient-specific modeling has increased substantially. The availability of detailed clinical data together with efficient numerical methods has now made the fluid-structure interaction modeling feasible.
Methods:The current study uses 3-D two-way fluid-structure interaction to provide simulation results of the sleep apnea symptom in a female patient with severe sleep apnea. A unique suture-patch device is presented and used to virtually apply force to the tongue.
Findings:As simulation shows, this device effectively reduced the risk of the upper airway occlusion and opened up the upper airway at the pharynx about 92% of the original area at the peak inhale volume, which will provide a possible treatment for this patient. A parametric study has been added to study the location of the patch. This pilot study may be helpful for further operation, medical treatment plan, and improvement of the curing rate.