SIDAS 2010: MOBILE 10 KANAL EINHEIT ZUR DIAGNOSE SCHLAFBEZOGENER ATMUNGSSTORUNGEN

At the moment diagnosis of sleep related breathing disorders (SRBD) is carried out in specialised clinical centres with well-equipped sleep laboratories. Since there are only few of these in Germany, medical care in this field is not sufficient at all even if applied only to high-risk patients. To cope with the large number of patients with severe SRBD we developed a mobile 10-channel unit (SIDAS 2010) designed for diagnosing SRBD even outside the conventional sleep laboratories. In this study we investigated 108 patients who after using the 4-channel recorder presented signs and symptoms suggesting SRBD. After evaluating the tracings in 53 patients a distinct obstructive sleep apnoea (OSA) (AI 10) could be diagnosed; in 55 patients the signs remained indistinguishable. In 2 recordings with SIDAS in 74 patients, a distinct OSA was diagnosed. 34 patients had an AI less than 10; these patients underwent renewed polysomnographic recordings with EEG in addition. The polysomnographic recordings revealed 5 patients with an AI between 5 and 10, 3 with primary and secondary alveolar obstructive hypoventilation due to excessive snoring. The comparison of SIDAS recordings with recordings made by polysomnography proved SIDAS to be valuable in respect of diagnosing type of SRBD (obstructive/central) and amount of respiratory events (apnea/hypopnoeas). In this study only 13 patients with SRBD (14,9%) need further diagnostic procedures. We conclude that with SIDAS most of the SRBD can be diagnosed sufficiently even outside conventional sleep laboratories.