Key result
HRV predicts post-stroke outcomes by non-invasively assessing autonomic nervous system activity.
Why the study?
Autonomic nervous system dysfunction is common after acute stroke, but the association between heart rate variability and different stroke types required systematic evaluation.
What is the association between heart rate variability and clinical characteristics in patients after stroke?
Systematic Review
What is the association between heart rate variability and clinical characteristics in patients after stroke?
Heart rate variability serves as a valuable non-invasive tool to assess autonomic nervous system dysfunction and predict outcomes in patients following a stroke.
Supports integrating HRV into post-stroke autonomic monitoring; reinforces its prognostic value in systematic evidence.
Autonomic nervous system dysfunction has been reported in up to 76% of stroke patients 7 days after an acute stroke. Heart rate variability (HRV) is one of the important indicators reflecting the balance of sympathetic and parasympathetic nerves. Therefore, we performed a systematic literature review of existing literature on the association between heart rate variability and the different types of stroke. We included studies published in the last 32 years (1990–2022). The electronic databases MEDLINE and Pubmed were searched. We selected the research which met the inclusion or exclusion criteria. A narrative synthesis was performed. This review aimed to summarize evidence regarding the potential mechanism of heart rate variability among patients after stroke. In addition, the association of clinical characteristics of heart rate variability and stroke has been depicted. The review further discussed the relationship between post-stroke infection and heart rate variability, which could assist in curbing clinical infection in patients with stroke. HRV as a non-invasive clinical monitoring tool can quantitatively assess the changes in autonomic nervous system activity, and further predict the outcome of stroke. HRV could play an important role in guiding clinical practice for autonomic nervous system disorder after stroke.
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Bai et al. (2023) conducted a systematic review in Stroke. Heart rate variability (HRV) was evaluated on Association between heart rate variability and stroke, potential mechanisms, and post-stroke infection. Heart rate variability serves as a non-invasive clinical monitoring tool to quantitatively assess autonomic nervous system activity and predict outcomes in patients after stroke.
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