SOUNDTRAK DATA ACQUISITION AND ANALYSIS SYSTEM FOR OSDB

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This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Obstructive Sleep Disordered Breathing (OSDB) affects 10-23% of adults and 4-10% of children. It is associated with decreased memory and concentration, auto crashes, hypertension, stokes, cardiovascular mortality and in children poor school and impaired cognitive performance. Currently, diagnosis of OSDB requires polysomnography which is an overnight study in a sleep laboratory. In children, a history of nightly snoring from the parent predicts cognitive function better than polysomnography. Since there is currently no method of recording and measuring snoring over several nights, there is a need for an inexpensive test to diagnose OSDB in both adults and children. Recent studies have suggested that the occurrence of high frequency inspiratory sounds (HFIS) may be related to OSDB. The purpose of this study is to test a small portable device that can be used in the home to detect HFIS during sleep. The device will be tested in the GCRC polysomnography sleep lab comparing it to a HFIS detection device previously used in the lab. The ability of the device to detect OSDB will be compared to polysomnographic OSDB parameters in this part of the study. Subjects will also be studied at home while using this new device.