View clinical trials related to Polysomnography.
Filter by:The investigators hypothesize that use of an educational story with pictures illustrating overnight sleep study procedure (also called polysomnography or PSG)accompanied by simple narrative will be a cost-effective, readily accepted intervention that will contribute to successful completion of sleep studies among children with disabilities. Children who have been referred for a clinical sleep study at Kennedy Krieger Institute (KKI) will be enrolled and randomized to either recieve usual care (discussion of polysomnography with referring clinicians) or educational story intervention. Both groups of participants will be asked to complete questionnaries before and after the sleep study. Set-up for the sleep study will be videotaped so that behavior of the child can be evaluated. The investigators will evaluate whether successful study completion differs between the two groups.
The prevalence of sleep disordered breathing (SDB) reaches more than 50% in chronic heart failure patients (CHF). The main consequence is an increase risk of fatal and non-fatal cardiovascular events. A treatment by continuous positive airway pressure (CPAP) or adaptative servo-ventilation (ASV) reduces this risk. Nevertheless, 75% of severe SDB cases remains undiagnosed and untreated especially due to cost and time delay for polysomnography examination which is the gold standard for SDB diagnosis. Indeed, alternative methods are developed. Some methods, based on nocturnal ECG analysis showed promising results but they are not validated and adapted for cardiac population. Thus, the goal of present study is to test the accuracy of ECG derived respiration signal to screen SDB in a CHF population.