An ECG-derived sleep spectrogram provides a complementary approach to conventional sleep staging by dynamically tracking cardiopulmonary interactions.
ECG spectrogram may complement conventional staging via cardiopulmonary tracking; hypothesis-generating pending prospective validation.
A sleep spectrogram derived from information in a single-lead electrocardiogram can be used to dynamically track cardiopulmonary interactions. The 2 distinct (bimodal) regimes demonstrate a closer relationship with visual cyclic alternating pattern and non-cyclic alternating pattern states than with standard sleep stages. This technique may provide a complementary approach to the conventional characterization of graded non-rapid eye movement sleep stages.
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Thomas et al. (2005) studied this question.
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