Results 151 to 160 of about 775,260 (336)

Acute Stroke Multimodal Imaging: Present and Potential Applications toward Advancing Care. [PDF]

, 2017
In the past few decades, the field of acute ischemic stroke (AIS) has experienced significant advances in clinical practice. A core driver of this success has been the utilization of acute stroke imaging with an increasing focus on advanced methods ...
Liang, John W., Matos Diaz, Ivan, Ostojic, L. Velickovic, Tansy, Aaron P.   +3 more
core   +2 more sources

Regional cerebral perfusion and sympathetic activation during exercise in hypoxia and hypercapnia: preliminary insight into ‘Cushing's mechanism’

The Journal of Physiology, EarlyView.
Abstract figure legend During handgrip exercise in hypoxia, brain perfusion is suboptimal and muscle sympathetic nerve activity is potentiated (left panel). During the exercise in hypercapnia, brain perfusion is supraoptimal and muscle sympathetic nerve activity is suppressed (right panel). These observations support the notion that Cushing's mechanism
Hsuan‐Yu Wan, Kanokwan Bunsawat, Catherine L. Jarrett, Katherine L. Shields, Angela V. Bisconti, Joshua C. Weavil, Markus Amann   +6 more
wiley   +1 more source

Cerebral autoregulation. [PDF]

Stroke, 1984
Strandgaard, S, Paulson, O B
openaire   +3 more sources

Hypertensive disorders of pregnancy and neuroimaging markers of dementia risk: A pilot study

Pregnancy, Volume 1, Issue 3, May 2025.
Abstract Background and Objectives Hypertensive disorders of pregnancy (HDP) are associated with a long‐term risk of maternal cognitive decline. Limited data exist regarding maternal brain structure in midlife after HDP. We examined the association between prior HDP and neuroimaging markers associated with microvascular brain injury, detected on high ...
Mohamad J. Alshikho, Noora Haghighi, Rupa Ravi, Victoria A. Solomon, Elizabeth Rangel, Jeffrey D. Pyne, Kelsang C. Bista, Julia F. Chang, Rafael V. Lippert, Dejania Cotton‐Samuel, Sheica Cedano, Nathalie De La Cruz Vasquez, Carla A. Haro, Jeremy Chiu, Yufen J. Chen, Uma Reddy, Becky McNeil, Victoria L. Pemberton, Lynn M. Yee, Todd Parrish, Adam M. Brickman, Eliza C. Miller, for the nuMoM2b Heart Health Study and nuMoM2b‐BraiN Investigators   +22 more
wiley   +1 more source

Dynamic cerebral autoregulation estimates derived from near infrared spectroscopy and transcranial Doppler are similar after correction for transit time and blood flow and blood volume oscillations

Journal of Cerebral Blood Flow and Metabolism, 2018
We analysed mean arterial blood pressure, cerebral blood flow velocity, oxygenated haemoglobin and deoxygenated haemoglobin signals to estimate dynamic cerebral autoregulation.
J. Elting, J. Tas, M. Aries, M. Czosnyka, N. Maurits   +4 more
semanticscholar   +1 more source

Multi-Modal Assessment of Cerebral Hemodynamics in Resuscitated Out-of-Hospital Cardiac Arrest Patients: A Case-Series

Life
We assessed the feasibility of concurrent monitoring of cerebral hemodynamics in adult, comatose out-of-hospital cardiac arrest (OHCA) patients admitted to the National University Heart Centre Singapore from October 2021 to August 2023.
Shir Lynn Lim, May Zin Myint, Kai Lee Woo, Elaine Young Heng Chee, Chiew Sie Hong, Erta Beqiri, Peter Smielewski, Marcus Eng Hock Ong, Vijay Kumar Sharma   +8 more
doaj   +1 more source

Application of signal processing techniques in the assessment of clinical risks in preterm infants [PDF]

arXiv, 2014
Preterm infants with very low birth weight suffer from a high risk of intra-ventricular hemorrhage(IVH) and other serious diseases. To improve the clinical risk assessment of preterm infants and develop potential clinically makers for the adverse outcome, the first part of the paper develops the frequency spectral analysis on the non-invasively ...
arxiv  

Hemodynamics and Drinking in the Giraffe

Acta Physiologica, Volume 241, Issue 5, May 2025.
ABSTRACT Background The circulation of 4–6 m tall giraffes is markedly affected by gravity. To ensure cerebral perfusion, upright giraffes generate a blood pressure in excess of 200 mmHg. Before drinking, the head is lowered by 3–5 m, providing exceptional hemodynamic challenges.
Christian Aalkjær, Mads Damkjær, Ulrik T. Baandrup, Mads F. Bertelsen, Torbjørn Brøgger, Emil Brøndum, Carl C. Danielsen, Jonas A. Funder, Carsten Grøndahl, J. Michael Hasenkam, Per G. Henriksen, Niels H. Secher, Nini Skovgaard, Morten H. Smerup, Niklas Telinius, Kristine H. Østergaard, Peter Bie, Tobias Wang   +17 more
wiley   +1 more source

Determining the Upper and Lower Limits of Cerebral Autoregulation With Cerebral Oximetry Autoregulation Curves: A Case Series

Critical Care Medicine, 2018
Objective: Critical care guidelines recommend a single target value for mean arterial blood pressure in critically ill patients. However, growing evidence regarding cerebral autoregulation challenges this concept and supports individualizing mean ...
Lucia Rivera-Lara, A. Zorrilla-Vaca, Ryan J. Healy, W. Ziai, C. Hogue, R. Geocadin, Batya R. Radzik, Caitlin Palmisano, M. Mirski   +8 more
semanticscholar   +1 more source

Compromised Dynamic Cerebral Autoregulation in Patients With Depression

Frontiers in Psychiatry, 2019
Background: Patients with depression tend to have various comorbid neurological symptoms, but the mechanisms remain unclear. The purpose of this study was to analyze the characteristics of dynamic cerebral autoregulation in depressed patients.Methods ...
Ming-Ya Luo, Zhen-Ni Guo, Yang Qu, Peng Zhang, Zan Wang, Hang Jin, Hong-Yin Ma, Shan Lv, Xin Sun, Yi Yang   +9 more
doaj   +1 more source