Validation of the new index of baroreflex function to identify neurogenic orthostatic hypotension
According to expert opinion, orthostatic hypotension (OH) associated to a change in heart rate ( ΔHR) less than 15 bpm suggests neurogenic OH (NOH). Recently, the ratio between HR and systolic blood pressure changes at 3 min of tilt test (ΔHR/ΔSBP) has been proposed as a better index than the ΔHR cut-off of 17 bpm. Our aim was to validate these indexes based on HR in an independent co hort of patients who performed cardiovascular reflex tests according to standardized procedures at our Institution.
Source: Autonomic Neuroscience: Basic and Clinical - Category: Neuroscience Authors: Pietro Guaraldi, Francesca Baschieri, Giorgio Barletta, Annagrazia Cecere, Pietro Cortelli, Giovanna Calandra-Buonaura Source Type: research
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