A trial study of RhinoSleep for the diagnosis of sleep apnea

RhinoSleep was developed to diagnose obstructive sleep apnea (OSA). The Rhi noSleep consists of a soft catheter, a measuring probe, and a computer. The soft catheter is inserted through the naris into the esophagus. The cathet er is connected to the measuring probe, which creates and sends a continuou s noise signal into the catheter. When the catheter is compressed during an obstruction, the sound reflections change, making it possible to identify both the level and the duration of the obstruction. Sixteen OSA patients we re examined using RhinoSleep and daytime polysomnography simultaneously. Wi th RhinoSleep, we successfully examined 13 cases, This trial study identifi ed problems with RhinoSleep. such as vomiting of the catheter, hardware ins tability, and the criteria decision for the analysis of OSA.