Exaggerated blood pressure response to standing in young-to-middle-age subjects: prevalence and factors involved
ConclusionAn orthostatic systolic BP reaction ≥ 20 mmHg is rare in young adults. However, even lower BP increases may be clinically relevant. The BP level, the supine BP decline over repeated measurement, and the white-coat effect can influence the estimate of the BP response to standing and should be considered in clinical and pathogen etic studies. (Source: Clinical Autonomic Research)
Source: Clinical Autonomic Research - April 29, 2023 Category: Research Source Type: research
A systematic review of the effects of transcutaneous auricular vagus nerve stimulation on baroreflex sensitivity and heart rate variability in healthy subjects
ConclusionThe results were mixed, which may be mainly attributable to the heterogeneity of the study designs and stimulation delivery dosages. Thus, future studies with comparable designs are required to determine the optimal stimulation parameters and clarify the significance of autonomic indices as a reliable marker of neuromodulation responsiveness.Graphical abstract (Source: Clinical Autonomic Research)
Source: Clinical Autonomic Research - April 29, 2023 Category: Research Source Type: research
Exaggerated blood pressure response to standing in young-to-middle-age subjects: prevalence and factors involved
ConclusionAn orthostatic systolic BP reaction ≥ 20 mmHg is rare in young adults. However, even lower BP increases may be clinically relevant. The BP level, the supine BP decline over repeated measurement, and the white-coat effect can influence the estimate of the BP response to standing and should be considered in clinical and pathogen etic studies. (Source: Clinical Autonomic Research)
Source: Clinical Autonomic Research - April 29, 2023 Category: Research Source Type: research
Augmented ocular vestibular-evoked myogenic potentials in postural orthostatic tachycardia syndrome
ConclusionsAugmented utricular inputs may be associated with a relative predominance of sympathetic over vagal control of BP and HR, especially for an early response during orthostasis in patients with POTS. Overt sympathoexcitation due to exaggerated utricular input and lack of readaptation may be associated with the pathomechanism of POTS. (Source: Clinical Autonomic Research)
Source: Clinical Autonomic Research - April 28, 2023 Category: Research Source Type: research
Effects of posture changes on dynamic cerebral autoregulation during early pregnancy in women with obesity and/or sleep apnea
AbstractThe incidence of syncope during orthostasis increases in early human pregnancy, which may be associated with cerebral blood flow (CBF) dysregulation in the upright posture. In addition, obesity and/or sleep apnea per se may influence CBF regulation due to their detrimental impacts on cerebrovascular function. However, it is unknown whether early pregnant women with obesity and/or sleep apnea could have impaired CBF regulation in the supine position and whether this impairment would be further exacerbated in the upright posture. Dynamic cerebral autoregulation (CA) was evaluated using transfer function analysis in 3...
Source: Clinical Autonomic Research - April 28, 2023 Category: Research Source Type: research
Augmented ocular vestibular-evoked myogenic potentials in postural orthostatic tachycardia syndrome
ConclusionsAugmented utricular inputs may be associated with a relative predominance of sympathetic over vagal control of BP and HR, especially for an early response during orthostasis in patients with POTS. Overt sympathoexcitation due to exaggerated utricular input and lack of readaptation may be associated with the pathomechanism of POTS. (Source: Clinical Autonomic Research)
Source: Clinical Autonomic Research - April 28, 2023 Category: Research Source Type: research
Recent updates in autonomic research: advances in the understanding of autonomic dysfunction after spinal cord injury
(Source: Clinical Autonomic Research)
Source: Clinical Autonomic Research - April 18, 2023 Category: Research Source Type: research
The arterial baroreflex in neurogenic orthostatic hypotension
(Source: Clinical Autonomic Research)
Source: Clinical Autonomic Research - April 13, 2023 Category: Research Source Type: research
Autonomic dysfunction and exercise intolerance in concussion: a scoping review
ConclusionThere was wide variability in approach to autonomic/exercise tolerance testing, as well as inclusion criteria/testing timelines, which limited comparisons across studies. The reviewed studies support current clinical suspicion of autonomic dysfunction as an important component of exercise intolerance. However, the specific mechanisms of impairment and relationship to symptoms and recovery require additional investigation. (Source: Clinical Autonomic Research)
Source: Clinical Autonomic Research - April 10, 2023 Category: Research Source Type: research
The need for consistent clinical definitions in autonomic medicine
(Source: Clinical Autonomic Research)
Source: Clinical Autonomic Research - April 7, 2023 Category: Research Source Type: research
Anatomical variations of the thoracic sympathetic ganglions and their effects on sympathicotomy for primary palmar hyperhidrosis
ConclusionsRTS3 may be more effective than RTS4 for PPH. However, RTS4 appears to be associated with a lower incidence and severity of CH in the areas of the chest and back than RTS3. NIR intraoperative imaging of thoracic sympathetic ganglions may improve the quality of sympathicotomy surgeries. (Source: Clinical Autonomic Research)
Source: Clinical Autonomic Research - April 5, 2023 Category: Research Source Type: research
