ArticleJournal of sleep research2026
Vascular Dynamics During Respiratory Arousal From Sleep Assessed by Oximeter-Based Vascular Stiffness Measures.
Article in Journal of sleep research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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4 authors.
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Abstract
Cortical arousals significantly impact obstructive sleep apnoea (OSA) pathophysiology and cardiovascular consequences, often mediated by sympathetic activation. While pulse oximetry (PPG) provides an accessible reflection of autonomic responses such as changes in pulse rate (PR) and pulse wave amplitude (PWA), the dynamic influence on other vascular indices remains less explored. We investigated dynamic changes in PPG-derived pulse propagation time (PPT), a metric reflecting modulation in vascular stiffness. It is hypothesised that PPT beat-to-beat responses to arousals are specific and independent from other pulse wave parameters. Polysomnography data from 87 patients were analysed (mean age 54 ± 12 years, 26% female, mean BMI 27.7 ± 3.6 kg/m
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