This prospective, observational cohort study investigates heart rate variability (HRV) monitoring using the Analgesia Nociception Index (ANI) monitor in adult patients undergoing major surgery within a multimodal rehabilitation program. The objective is to correlate HRV indices with functional capacity, physiological reserve, and frailty during the prehabilitation phase.
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Correlation of HRV indices with functional capacity and frailty
Timeframe: From initial pre-anesthesia consultation to 30 days postoperatively
Cristian AragĂłn-BenedĂ, M.D., Ph.D.,