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In this paper, an analysis of heart rate variability (HRV) during decreases in the amplitude fluctuations of photopletysmography (PPG) [decreases in the amplitude fluctuations of photopletysmography (DAP)] events for obstructive sleep apnea syndrome (OSAS) screening is presented. Two hundred and sixty-eight selected signal segments around the DAP event were extracted and classified in five groups...
In this study the heart rate variability (HRV) during decreases in the amplitude fluctuations of pulse photople-tysmography signal (PPG) events (DAP) was analyzed for evaluating the possible relations and involvements of the autonomic nervous system, mainly in presence of apneas. The study uses 45 fragments containing a DAP event and being free of artifacts or other physiologic events which were classified...
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