Relationship between sleep and cognitive function in patients with heart failure: A systematic review
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Updated: Dec 31, 2025

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Liya Tang1, Wenping Liu2, Yuhang Yang1
1School of Nursing, Jilin University, Changchun, China.
Objective:
The aim of this systematic review is to synthesize relevant evidence and illustrate the relationship between sleep and cognitive function in patients with heart failure.
Methods:
A literature search was conducted on Embase, PubMed, Web of Science, CINAHL, PsychINFO, Cochrane Library, China National Knowledge Infrastructure (CNKI) and Wan Fang to identify relevant studies.
Results:
Seven studies, which enrolled a total of 1218 heart failure patients, were included in this review. These articles investigating the relationship between sleep and cognitive performance in patients with heart failure had inconsistent results. Five studies confirmed that sleep quality and insomnia were significantly associated with cognitive function, including global cognition, attention, and executive function, whereas the other two studies indicated no statistically significant relationship between sleep and cognitive function.
Conclusion:
Although limited evidence restricts the overall conclusions, this review might provide new opportunities to identify patients with heart failure that are at high risk for cognitive decline. Further studies across a longer period are needed to confirm the relationship between sleep and cognitive function in patients with heart failure.
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