In geriatric patients with hypotensive syndromes, cardiovascular autonomic function as measured by HRV, BPV, and BRS is comparable to patients without such syndromes. These findings argue against a single or dominant etiological factor, that is, cardiac autonomic dysfunction and underline the structured, broad, and multifactorial approach to elderly patients with falls and/or syncope as proposed in the current evidence-based syncope guidelines.
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