ArticlePhysiological measurement2015
Cardiovascular parameters and neural sympathetic discharge variability before orthostatic syncope: role of sympathetic baroreflex control to the vessels.
Article in Physiological measurement, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Vagal Nerve Stimulation for Cardiovascular Diseases: From Hype to Hope.Circulation · 2026Article
- Targeted autonomic testing for radiation‑induced baroreflex failure in head and neck cancer survivors: index case and early program experience.Cardio-oncology (London, England) · 2026Article
- A cross sectional study of the autonomic function at different recovery phases in SARS-CoV-2 patients without orthostatic symptoms.Scientific reports · 2026Article
- The effects of limb suction during arterial occlusion on arterial baroreflex in humans.American journal of physiology. Heart and circulatory physiology · 2025Article
- Noninvasive assessment of temporal dynamics in sympathetic and parasympathetic baroreflex responses.Physiological measurement · 2025Article
- Baroreflex responses to limb venous distension in humans.American journal of physiology. Regulatory, integrative and comparative physiology · 2022Article
- CORP: Standardizing methodology for assessing spontaneous baroreflex control of muscle sympathetic nerve activity in humans.American journal of physiology. Heart and circulatory physiology · 2021Article
- Oscillatory Pattern of Sympathetic Nerve Bursts Is Associated With Baroreflex Function in Heart Failure Patients With Reduced Ejection Fraction.Frontiers in neuroscience · 2021Article
- Cardiac and Vascular Sympathetic Baroreflex Control during Orthostatic Pre-Syncope.Journal of clinical medicine · 2019Article
- Cardiac and Peripheral Autonomic Responses to Orthostatic Stress During Transcutaneous Vagus Nerve Stimulation in Healthy Subjects.Journal of clinical medicine · 2019Article
- Editorial: Probing the Cardiac Arm of the Baroreflex and Complementary Branches.Frontiers in neuroscience · 2019Article
- Characterization of the Asymmetry of the Cardiac and Sympathetic Arms of the Baroreflex From Spontaneous Variability During Incremental Head-Up Tilt.Frontiers in physiology · 2019Article
- Effects of Prolonged Head-Down Bed Rest on Cardiac and Vascular Baroreceptor Modulation and Orthostatic Tolerance in Healthy Individuals.Frontiers in physiology · 2019Article
- Peripheral Resistance Baroreflex During Incremental Bicycle Ergometer Exercise: Characterization and Correlation With Cardiac Baroreflex.Frontiers in physiology · 2018Article
- Twenty-four-hour systolic blood pressure variability and renal function decline in elderly male hypertensive patients with well-controlled blood pressure.Clinical interventions in aging · 2018Observational
- Cardiovascular coupling during graded postural challenge: comparison between linear tools and joint symbolic analysis.Brazilian journal of physical therapy · 2016Article
- Simultaneous Characterization of Sympathetic and Cardiac Arms of the Baroreflex through Sequence Techniques during Incremental Head-Up Tilt.Frontiers in physiology · 2016Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
We tested the hypothesis that altered sympathetic baroreceptor control to the vessels (svBRS) and disrupted coupling between blood pressure (BP) fluctuations and muscle sympathetic activity (MSNA) discharge pattern in the low frequency band (LF, around 0.1 Hz) precede vasovagal syncope. Seven healthy males underwent ECG, BP, respiratory, and MSNA recordings at baseline (REST) and during a 15 min 80° head-up tilt, followed by a -10 mmHg step wise increase of lower body negative pressure up to presyncope. Spectral and coherence analyses of systolic arterial pressure (SAP) and MSNA variability provided the indexes of vascular sympathetic modulation, LFSAP, and of the linear coupling between MSNA and SAP in the low frequency band (around 0.1 Hz), K(2)MSNA-SAP(LF). svBRS was assessed as the slope of the regression line between MSNA and diastolic arterial pressure (DAP). Data were analyzed at REST, during asymptomatic and presyncope periods of tilt. svBRS declined during presyncope period compared to REST and asymptomatic tilt. The presyncope period was characterized by a decrease of RR interval, LFMSNA, LFSAP, and K(2)MSNA-SAP(LF) values compared to the asymptomatic one, whereas MSNA burst rate was unchanged. The reduction of svBRS producing an altered coupling between MSNA and SAP variability at 0.1 Hz, may provoke circulatory changes leading to presyncope.
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