Sleep & breathing = Schlaf & Atmung
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The aims of this study were to assess the interest of pulse wave amplitude (PWA) and actigraphy for characterizing sleep in children with sleep-disordered breathing and to evaluate PWA and actigraphy to assess the efficacy of non-invasive positive pressure ventilation (NPPV). ⋯ The analysis of AA + DS4% is very informative for the grading of the severity of OSA and for the efficacy of NPPV in children with sleep-disordered breathing.
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The Berlin Questionnaire (BQ) is a useful tool to identify the high-risk group for obstructive sleep apnea (OSA) in the primary care sites or hospital, but the usefulness of the BQ to identify the high-risk group for OSA in the general population has not been evaluated. The purpose of our study was to develop the Korean version of the BQ (KBQ) and evaluate the usefulness of the BQ in identifying patients with OSA in the general population. ⋯ This is the first study to confirm the usefulness of the BQ as a screening tool for OSA by prioritizing subjects at high risk for OSA in the general population.
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Attempts to understand the causes of cognitive impairment in obstructive sleep apnea (OSA) are complicated by the overlap among clinical and demographic factors that may impact cognition. The goal of the current study was to isolate the contribution of hypoxemia to cognitive impairment in OSA. ⋯ This study is one of the first to compare the cognitive performance of patients with high and low hypoxemia after controlling for demographic factors and aspects of OSA severity that could confound the relationship. In our carefully matched sample, we observed an unexpected advantage of higher hypoxemia on memory. These preliminary findings are discussed in the context of basic science literature on the protective effects of adaptation to intermittent hypoxemia. Our data suggest that the association between hypoxemia and cognition may not straightforward. Future research targeting the effects of hypoxemia on cognition controlling for other clinical factors in large groups of patients with OSA will be important.
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This study was conducted to determine whether postoperative complications are increased in patients with obstructive sleep apnea (OSA) and to study the impact of the severity of OSA and preoperative use of continuous positive airway pressure (CPAP) on the postoperative outcome. ⋯ OSA is associated with a significantly increased rate of postoperative complications.