Results 51 to 60 of about 23,457 (242)

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

Experimental Physiology, EarlyView.
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, Danielle K. Greaves, J. Kevin Shoemaker, Philippe Arbeille, Richard L. Hughson, Andrew D. Robertson   +5 more
wiley   +1 more source

Transcranial Doppler in hypoxic-ischemic encephalopathy babies as a prognostic marker in the short-term outcome

Asian Journal of Medical Sciences, 2023
Background: Birth asphyxia is a lack of blood flow or gas exchange to or from the fetus in the period immediately before, during, or after the birth process.
Jayendra Arya , Sakshi Jain , Shashikant Patidar , Sardar Vikram Singh Bais   +3 more
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

Processamento de sinais Doppler para obtenção de sonograma em tempo real [PDF]

, 2003
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.A aterosclerose reduz a luz de vasos sanguíneos, causando isquemia.
Baggio, João Fernando Refosco
core  

Transcranial Doppler detection of vertebrobasilar vasospasm following subarachnoid hemorrhage.

, 1994
BACKGROUND AND PURPOSE: 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 ...
Burch, C M, Permutt, T, Sloan, M A, Wozniak, M A, Rigamonti, D, Rothman, M I, Numaguchi, Y   +6 more
core   +2 more sources

Genetic, laboratory and clinical risk factors in the development of overt ischemic stroke in children with sickle cell disease

Hematology, Transfusion and Cell Therapy, 2018
Cerebrovascular disease, particularly stroke, is one of the most severe clinical complications associated with sickle cell disease and is a significant cause of morbidity in both children and adults.
André Rolim Belisário, Célia Maria Silva, Cibele Velloso-Rodrigues, Marcos Borato Viana   +3 more
doaj   +1 more source

Individuals with persisting post‐concussion symptoms with physiological subtype demonstrate altered cardiovascular and autonomic responses to face cooling

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, Steve Lidstone, Josh G. Nowlan, Johnathan Ljubanovich, Brandon J. McKinlay, Stephen A. Klassen, Stephen S. Cheung   +6 more
wiley   +1 more source

Transcranial Doppler Ultrasonography: Diagnosis dan Monitoring Non Invasif pada Neuroanesthesia dan Neurointesive Care

Jurnal Neuroanestesi Indonesia, 2018
Transcranial Doppler (TCD) adalah pemeriksaan ultrasonografi yang telah digunakan secara luas dibidang neuroanestesi dan perawatan intensif. Pada bidang perawatan intensif neurologi, pemeriksaan TCD sangat berguna untuk evaluasi dan monitoring perubahan ...
Buyung Hartiyo Laksono
doaj   +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, Rintaro Sakamoto, Darren P. Casey   +2 more
wiley   +1 more source

Risk factors for high cerebral blood flow velocity and death in kenyan children with sickle cell anaemia: role of haemoglobin oxygen saturation and febrile illness [PDF]

, 2009
High cerebral blood flow velocity (CBFv) and low haemoglobin oxygen saturation (SpO2) predict neurological complications in sickle cell anaemia (SCA) but any association is unclear.
Otieno, Godfrey, Thomas N. Williams, Ajala-Agbo, T, Godfrey Otieno, Tolulope Ajala‐Agbo, Kevin Marsh, Kirkham, Fenella J., Kirkham, Fenella J, Fegan, Gregory, Newton, Charles, Williams, TN, Greg Fegan, Makani, J, Newton, Charles R, Newton, CR, Otieno, G, Marsh , Kevin, Fenella J. Kirkham, Williams, Thomas N., Albert Komba, Marsh, K, Newton, Charles R., Fegan, G, Kirkham, FJ, Williams, Thomas N, Julie Makani, Ajala-Agbo, Tolulope, Charles R. Newton, Komba, Albert, Komba, A, Williams, Thomas, Makani, Julie, Marsh, Kevin, Gregory Fegan   +33 more
core   +1 more source