نبذة مختصرة : This study aims to systematically review and meta-analyze studies on short-term effects of ultrafine particles (UFP) on heart rate variability (HRV), an indicator of autonomic function. We included 12 articles (altogether 1,377 subjects) published through March 31, 2021 in the meta-analysis and synthesized the effect estimates using random-effects models. Different time courses of the short-term effects (lags of hours to days) were pooled separately based on potential pathophysiological mechanisms. We found immediate decreases in the standard deviation of the normal-to-normal intervals (SDNN) and root mean square of successive R-R interval differences (RMSSD) within six hours after exposure, as well as decreases in SDNN, low-frequency power (LF), and the ratio of low-frequency to high-frequency power (LF/HF) when pooling estimates of lags across hours to days. Our finding suggests the adverse impact of ambient UFP exposure on the autonomic control of the heart and highlights the need to introduce UFP air quality standards.
Relation: https://eprints.qut.edu.au/240744/1/ZHANG_Short_term_effects_of_UFP.pdf; Zhang, S., Breitner, Susanne, Pickford, R., Lanki, T., Okokon, Enembe, Morawska, Lidia, Samoli, Evangelia, Rodopoulou, Sophia, Stafoggia, Massimo, Renzi, Matteo, Schikowski, Tamara, Zhao, Q., Schneider, Alexandra, & Peters, Annette (2022) Short-term effects of ultrafine particles on heart rate variability: a systematic review and meta-analysis. In Proceedings of Abstracts 13th International Conference on Air Quality: Science and Application. University of Hertfordshire, Hatfield, UK, p. 139.; https://eprints.qut.edu.au/240744/; Faculty of Science; School of Earth & Atmospheric Sciences
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