Abstract
Sleep-disordered breathing (SDB) is a frequent comorbidity in patients with wake-up stroke (WUS). It affects the occurrence of this disease through its interference of breathing changes and sleep quality. We aim to assess the performances of sleep-disordered breathing in WUS. A systematical search for the studies that investigated sleep-disordered breathing in WUS was done in PubMed, Web of Science, and Cochrane Library. Data were extracted by two independent investigators, and then analyzed using the Revman 5.0 software. A total of five studies with 591 patients were included in the meta-analysis. The pooling data of sleep parameters showed that patients with WUS had a higher AHI and ODI than those with non-WUS (NWUS) [AHI: SMD: 0.58 (0.05, 1.10), P = 0.03; ODI: SMD: 0.63 (0.06, 1.21), P = 0.03). In addition, an increased incidence of severe SAS is found in WUS (OR: 3.18; 95% CI 1.27, 7.93; P = 0.01). However, no differences were found in AI, ESS, and the number of sleep apnea syndrome (SAS) between the two groups (P > 0.05). Therefore, WUS patients intended to have a severe SDB status, affecting the respiratory effects. Early prevention and attention should be paid on potential stroke sufferers with SAS, especially those with severe SAS.
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This study was supported by grants from the National Natural Science Foundation of China (Grant No. 81401190) and Natural Science Foundation of Hunan Province (Grant No. 2017JJ3273).
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Supplementary Figure 1. Meta-analysis of ESS. WUS wake-up stroke, NWUS non-WUS, ESS Epworth Sleepiness Scale (JPEG 223 kb)
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Xiao, Z., Xie, M., You, Y. et al. Wake-up stroke and sleep-disordered breathing: a meta-analysis of current studies. J Neurol 265, 1288–1294 (2018). https://doi.org/10.1007/s00415-018-8810-2
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DOI: https://doi.org/10.1007/s00415-018-8810-2