Results 51 to 60 of about 255,609 (202)
Mechanisms of Cough Syncope as Evaluated by the Valsalva Maneuver
Kaohsiung Journal of Medical Sciences, 2007 Transcranial Doppler is often employed for the assessment of cerebral hemodynamics. The study by Chao et al in the February 2007 issue of the journal raises some important issues regarding the understanding of the mechanisms involved in cough syncope. We
Vijay K. Sharma, Bernard P.L. Chan
doaj +1 more source
Uncovering the impact of the cardiovascular system on cerebrovascular health using MRI
Experimental Physiology, EarlyView.Abstract Human cerebrovasculature is finely tuned to enable local changes in blood flow to meet the brain's demands, whilst protecting the brain from systemic changes in blood pressure, both acutely during a heartbeat and chronically over time. This review summarises cerebrovascular structure and function, their role in disease and neurodegeneration ...
Ian D. Driver, Kevin Murphy
wiley +1 more source
Heparin and air filters reduce embolic events caused by intra-arterial cerebral angiography - A prospective, randomized trial [PDF]
, 2004 Background-Intra-arterial cerebral angiography is associated with a low risk for neurological complications, but clinically silent ischemic events after angiography have been seen in a substantial number of patients.Methods and Results-In a prospective ...
Bartsch, AJ +8 more
core
Transcranial Doppler in cerebrovascular disease.
, 1986 Doppler analysis of flow in intracranial arteries is now possible using a 2 MHz probe allowing sufficient penetration of bone to obtain signals noninvasively.
L R Wechsler, J P Kistler, A H Ropper
core +1 more source
Experimental Physiology, EarlyView.Abstract Individuals with persisting post‐concussion symptoms with physiological subtype (PPCS‐P) demonstrate exercise intolerance due to exacerbation of concussion‐like symptoms during incremental exercise. We tested the hypothesis that individuals with PPCS‐P (n = 12) would have a blunted cardiac autonomic response to face cooling compared to healthy
Phillip J. Wallace +6 more
wiley +1 more source
Research and Medical Transcranial Doppler System
Archives of Acoustics, 2016 A new ultrasound digital transcranial Doppler system (digiTDS) is introduced. The digiTDS enables diagnosis of intracranial vessels which are rather difficult to penetrate for standard systems.
Marcin LEWANDOWSKI +4 more
doaj +1 more source
Transcranial Doppler-guided deairing of a pediatric ventricular assist device: experience with twins
, 2015 We report the intraoperative courses of 2 consecutive Berlin Heart Excor® Pediatric Ventricular Assist Device implantations, in which transcranial Doppler ultrasonography helped to detect macroscopically undetected residual air bubbles captured in the ...
Eberle, Balthasar +8 more
core +1 more source
Optimizing cerebrovascular endothelial health through shear stress modulation
Experimental Physiology, EarlyView.Abstract The endothelium plays a pivotal role in regulating cerebrovascular blood flow, and its dysfunction increases the risk of cerebrovascular disease. Endothelial shear stress, a primary mechanical stimulus for endothelial nitric oxide production, is a key modulator of vascular adaptation.
Erika Iwamoto +2 more
wiley +1 more source
Experimental Physiology, EarlyView.Abstract Dynamic cerebral autoregulation (dCA) stabilises cerebral blood flow (CBF) against rapid fluctuations in perfusion pressure and may serve as a key physiological mediator of cognitive function. Inhibitory executive function, a core domain essential for goal‐directed behaviour, is influenced by modifiable lifestyle factors such as physical ...
Hayato Tsukamoto, Damian M. Bailey
wiley +1 more source
Transcranial Doppler detection of vertebrobasilar vasospasm following subarachnoid hemorrhage.
, 1994 Transcranial Doppler sonography is of established value in the detection and monitoring of middle cerebral artery vasospasm. Little information exists on the utility of transcranial Doppler for detection of posterior circulation vasospasm ...
M I Rothman +6 more
core +3 more sources