The short-term blood pressure variability (BPV) reflects autonomic regulatory mechanisms.
However, the influence of BPV in orthostatic intolerance (OI) is unknown. Herein, we …

Objectives To explore the association of early symptoms of orthostatic intolerance (OI) with
systolic (SBP), diastolic (DBP) and mean arterial (MAP) blood pressure changes in a sample …

Background: beat-to-beat technology is increasingly used for investigating orthostatic
intolerance (OI) but the prevalence of orthostatic hypotension (OH) diagnosed with this …

Objective To investigate the frequency and mechanism of orthostatic hypertension (OHT) in
patients with orthostatic intolerance. Methods We retrospectively reviewed 1033 consecutive …

Introduction and objectives Orthostatic intolerance (OI) syndromes are a confusing topic and
determining a specific diagnosis to achieve optimal treatment can be troublesome. We …

Studies of adults with orthostatic intolerance (OI) have revealed altered neurohumoral
responses to orthostasis, which provide mechanistic insights into the dysregulation of blood …

Background Chronic orthostatic intolerance (COI) is a common and disabling autonomic
syndrome of unclear pathophysiology. We tested the hypothesis that baroreflex and …

Purpose Abnormal blood pressure (BP) response to orthostatic maneuvers may predict
adverse health outcomes. Orthostatic hypotension (OH) is defined as a fall in BP of≥ 20/10 …

Background Manifestations of neurocardiovascular instability (NCVI), including orthostatic
hypotension (OH) orthostatic hypertension (OHTN) and impaired blood pressure variability …

Background Obesity is linked with numerous physiological impairments; however, its impact
on orthostatic tolerance (OT) remains unknown. This study tested the hypothesis that OT is …