Results 121 to 130 of about 621,898 (227)

Perioperative propranolol during robotic‐assisted radical prostatectomy: A randomised, double‐blind, placebo‐controlled, pilot trial (PeP‐RALP)

open access: yesBJUI Compass, Volume 7, Issue 9, September 2026.
Abstract Objective This study aimed to determine the feasibility and safety of administering perioperative propranolol, as an adjunct to reduce prostate cancer recurrence, in patients undergoing robotic‐assisted laparoscopic prostatectomy (RALP) for European Association of Urology (EAU) intermediate‐ or high‐risk prostate cancer.
Shivanthe Sivanesan   +14 more
wiley   +1 more source

Transcranial Color‐Coded Duplex Sonography in Large‐Vessel Vasculitis Compatible With Takayasu Arteritis Presenting Intracranial Involvement and Vertebrobasilar Dolichoectasia: A Case Report

open access: yesJournal of Clinical Ultrasound, Volume 54, Issue 7, Page 1710-1716, September 2026.
This case illustrates sequential intracranial occlusions in large‐vessel vasculitis compatible with Takayasu arteritis preserving perfusion through robust collateral pathways. Transcranial color‐coded duplex sonography identified characteristic blunted flow patterns and focal turbulence, underscoring its value in detecting hemodynamic compromise beyond
Maria Júnia Lira e Silva   +4 more
wiley   +1 more source

The Range of Examinations and Roles Performed by Sonographers in Australia and New Zealand: What Does It Mean for a Profession‐Based Career Framework?

open access: yesSonography, Volume 13, Issue 3, September 2026.
ABSTRACT Introduction Many sonographers in Australia and New Zealand (ANZ) do not work within an institutional career framework, have no or limited progression opportunities, or are unsure how to progress their careers. This may limit professional growth and advancement.
Kerry Thoirs, Paula Kinnane
wiley   +1 more source

Transcranial Doppler in acute ischemic stroke and stroke-risk diseases

open access: yes, 2018
This thesis covers research on the use of transcranial Doppler in ischemic stroke and stroke risk diseases, including TCD accuracy for detecting stenosis, the TIBI grade, its prognostic role and detecting of microemboli and its significance.általános ...
Finnsdóttir, Herdís
core  

Confined spaces in space: Cerebral implications of chronic elevations of inspired carbon dioxide and implications for long‐duration space travel

open access: yesExperimental Physiology, Volume 111, Issue 9, Page 3968-3982, 1 September 2026.
Abstract Cerebrovascular regulation is critically dependent upon the arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_{\mathrm{2}}}}}$), owing to its effect on cerebral blood flow, tissue PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_{\mathrm{2}}}}}$, tissue proton concentration, cerebral metabolism and cognitive and neuronal ...
Jay M. J. R. Carr   +2 more
wiley   +1 more source

Detection of microemboli by transcranial Doppler ultrasound.

open access: yesTexas Heart Institute journal, 1997
Doppler ultrasound detection of abnormally high-pitched signals within the arterial waveform offers a new method for diagnosis, and potentially for prediction, of embolic complications in at-risk patients. The nature of Doppler "microembolic" signals is of particular interest in patients with prosthetic heart valves, where a high prevalence of these ...
D G, Grosset   +13 more
openaire   +1 more source

Effects of the angle of head‐down tilt on dynamic cerebral autoregulation during combined exposure to cephalad fluid shift and mild hypercapnia

open access: yesExperimental Physiology, Volume 111, Issue 9, Page 4115-4125, 1 September 2026.
Abstract Astronauts experience combined exposure to a cephalad fluid shift and mild hypercapnia during space missions, potentially contributing to health problems. Such combined exposure may weaken dynamic cerebral autoregulation. The magnitude of cephalad fluid shift varies between individuals, and dynamic cerebral autoregulation may be affected more ...
Tomokazu Kato   +2 more
wiley   +1 more source

Regional changes in cerebral blood flow between the upright and supine posture and over 3 days of bed rest

open access: yesExperimental Physiology, Volume 111, Issue 9, Page 4223-4234, 1 September 2026.
Abstract A reduction in cerebral blood flow (CBF) has been observed during spaceflight and bed rest. We aimed to examine the magnitude and regional heterogeneity of the decrease in CBF during bed rest compared to posture changes on Earth. Seventeen participants (age, 29 ± 9 years, 7 females) were studied in the upright and supine posture and over 3 ...
Carmen Possnig   +8 more
wiley   +1 more source

Cerebrovascular pulsatility following long duration spaceflight is associated with changes in pulse pressure and carotid artery stiffness

open access: yesExperimental Physiology, Volume 111, Issue 9, Page 4235-4247, 1 September 2026.
Abstract Central artery stiffening increases the haemodynamic pulsations transmitted downstream towards target organs, including the brain. While recent evidence suggests that long duration spaceflight is associated with reduced common carotid artery (CCA) distensibility, cerebrovascular pulsatility has not been extensively characterized in astronauts.
Roxanne Fournier   +5 more
wiley   +1 more source

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