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Dataset results
59 results for “Cerebral autoregulation”
Effect of Serial Remote Ischemic Conditioning on Dynamic Cerebral Autoregulation in Patients With Intravenous Thrombolysis (SRICDCA-IVT)
ClinicalTrials.gov study NCT05550103. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Effect of Targeted Temperature Management on Cerebral Autoregulation in Patients With Neurocritical Diseases
ClinicalTrials.gov study NCT04728438. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Effect of Transcranial Magnetic Stimulation on Dynamic Cerebral Autoregulation in Healthy Adults
ClinicalTrials.gov study NCT05915923. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Impact of tDCS on Cerebral Autoregulation
ClinicalTrials.gov study NCT01865604. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Cerebral Autoregulation in Pediatric ECMO (ECMOX 2)
ClinicalTrials.gov study NCT04548739. IPD Sharing: UNDECIDED. Countries: 2. Publications: 0.
Impact of Impaired Cerebral Autoregulation on Postoperative Delirium in Elderly Patients Undergoing Spine Surgery
ClinicalTrials.gov study NCT01574950. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Cerebral Autoregulation and Vasospasm in Patients With TBI
ClinicalTrials.gov study NCT02351518. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Noninvasive Measurement of the Cerebral Autoregulation in Neonates and Infants With Complex Congenital Heart Disease
ClinicalTrials.gov study NCT04810013. IPD Sharing: NO. Countries: 1. Publications: 0.
Cerebral Autoregulation in Patients With Symptomatic Cerebral Atherosclerotic Stenosis
ClinicalTrials.gov study NCT05028855. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Dynamic Cerebral Autoregulation of Remote Ischemic Conditioning Combined With Intravenous Thrombolysis for Acute Ischemic Stroke
ClinicalTrials.gov study NCT05125861. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Effects of High-frequency Repetitive Transcranial Magnetic Stimulation on Cerebral Autoregulation in Patients With Cerebral Small Vessel Disease
ClinicalTrials.gov study NCT05914623. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Vitamin C, Steroids, and Thiamine, and Cerebral Autoregulation and Functional Outcome in Septic Shock
ClinicalTrials.gov study NCT03649633. IPD Sharing: NO. Countries: 1. Publications: 0.
Effect of High Altitude Exposure, Acclimatization and Re-exposure on Cerebral Autoregulation in Lowlanders
ClinicalTrials.gov study NCT02829255. IPD Sharing: NO. Countries: 1. Publications: 0.
Differential Effects of Remimazolam and Propofol on Dynamic Cerebral Autoregulation During General Anesthesia
ClinicalTrials.gov study NCT05533580. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Effects of Remote Ischemic Conditioning on Dynamic Cerebral Autoregulation, Blood Pressure and Heart Rate Variability in Patients With Cerebral Small Vessel Disease
ClinicalTrials.gov study NCT05225948. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Continous Assessment of Cerebral Autoregulation With Near-infrared Spectroscopy
ClinicalTrials.gov study NCT02959008. IPD Sharing: NO. Countries: 0. Publications: 0.
The Effect of an α2-Adrenoceptor Antagonist (Yohimbine) on Dynamic Autoregulation in the Human Middle Cerebral Artery and Ophthalmic Artery
ClinicalTrials.gov study NCT00814047. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Cerebral autoregulation and sympathetic nervous system activity (SNS) while performing cognitive tasks during yoga practices which have different effects on SNS
<ul> <li>Cerebral blood flow is associated with cognitive performance, attention and working memory.</li> <li>To understand the association between sympathetic nerve activity and cerebral autoregulation in normal healthy practitioners.</li> <li>Increased sympathetic nervous system activity has been associated with better performance in cognitive tasks such as attention<sup>1</sup>, memory<sup>2</sup>, perception<sup>3,4,</sup> and social cognition<sup>5</sup>.</li> <li>Certain yoga breathing practices are associated with signs of reduced sympathetic activity<sup>6,7</sup> while other yoga breathing practices have been associated with increased sympathetic activity.</li> <li>Irrespective of whether a yoga breathing practice increases sympathetic nervous system activity or decreases it, there has been evidence of better performance in tasks requiring focused attention. This suggests that attention may be independent of sympathetic nervous system activity.</li> <li>For both categories of breathing practices, we found improved performance in attention tasks. Despite sympathetic activity being reduced with improved attention after alternate nostril breathing (<em>anuloma viloma pranayama</em>)<sup>8 </sup>while sympathetic nervous system activity increased with better attention<sup>9</sup> after right uninostril breathing.</li> <li>In none of the studies, sympathetic nervous system activity was assessed at the same time during cognitive task performance.</li> </ul>
Exploring metrics for the characterization of the cerebral autoregulation during head-up tilt and propofol general anesthesia.
<p>Bari V, Barbarossa L, Gelpi F, Cairo B, De Maria B, Tonon D, Rossato G, Faes L, Ranucci M, Barbieri R, Porta A. Exploring metrics for the characterization of the cerebral autoregulation during head-up tilt and propofol general anesthesia. Auton Neurosci. 2022 Nov;242:103011. doi: 10.1016/j.autneu.2022.103011. Epub 2022 Jul 8. PMID: 35834916.</p> <p><strong>Abstract</strong></p> <p>Techniques grounded on the simultaneous utilization of Tiecks' second order differential equations and spontaneous variability of mean arterial pressure (MAP) and mean cerebral blood flow velocity (MCBFV), recorded from middle cerebral arteries through a transcranial Doppler device, provide a characterization of cerebral autoregulation (CA) via the autoregulation index (ARI). These methods exploit two metrics for comparing the measured MCBFV series with the version predicted by Tiecks' model: normalized mean square prediction error (NMSPE) and normalized correlation ρ. The aim of this study is to assess the two metrics for ARI computation in 13 healthy subjects (age: 27 ± 8 yrs., 5 males) at rest in supine position (REST) and during 60° head-up tilt (HUT) and in 19 patients (age: 64 ± 8 yrs., all males), scheduled for coronary artery bypass grafting, before (PRE) and after (POST) propofol general anesthesia induction. Analyses were carried out over the original MAP and MCBFV pairs and surrogate unmatched couples built individually via time-shifting procedure. We found that: i) NMSPE and ρ metrics exhibited similar performances in passing individual surrogate test; ii) the two metrics could lead to different ARI estimates; iii) CA was not different during HUT or POST compared to baseline and this conclusion held regardless of the technique and metric for ARI estimation. Results suggest a limited impact of the sympathetic control on CA.</p>
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International Brain Laboratory public data
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OpenNeuro
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