Results 71 to 80 of about 259,881 (379)

Cerebral Perfusion Pressure is Maintained in Acute Intracerebral Hemorrhage: A CT Perfusion Study

American Journal of Neuroradiology, 2016
BACKGROUND AND PURPOSE: Although blood pressure reduction has been postulated to result in a fall in cerebral perfusion pressure in patients with intracerebral hemorrhage, the latter is rarely measured. We assessed regional cerebral perfusion pressure in
A. Tamm, R. McCourt, B. Gould, M. Kate, J. Kosior, T. Jeerakathil, L. Gioia, D. Dowlatshahi, M. Hill, S. Coutts, A. Demchuk, B. Buck, D. Emery, A. Shuaib, K. Butcher   +14 more
semanticscholar   +1 more source

Cortical Response to Acute Implantation of the Utah Optrode Array in Macaque Cortex

Advanced Healthcare Materials, EarlyView.
Delivering light deep into the brain over a large volume while causing minimal tissue damage is a major challenge for non‐human primate optogenetics. This study evaluates Utah Optrode Array designs in vivo, revealing how changes in shank geometry, surface texture, and insertion parameters minimize acute damage—offering a path toward high‐precision ...
Adrián Villamarin‐Ortiz, Christopher F. Reiche, Frederick Federer, Andrew M. Clark, John D. Rolston, Cristina Soto‐Sánchez, Eduardo Fernandez, Steve Blair, Alessandra Angelucci   +8 more
wiley   +1 more source

Steady‐state cerebral blood flow and dynamic cerebral autoregulation during neck flexion and extension in seated healthy young adults

Physiological Reports, 2023
Neck flexion and extension show differences in various physiological factors, such as sympathetic nerve activity and intracranial pressure (ICP). We hypothesized that differences would exist in steady‐state cerebral blood flow and dynamic cerebral ...
Tomokazu Kato, Toru Konishi, Takuya Kurazumi, Yojiro Ogawa, Ken‐ichi Iwasaki   +4 more
doaj   +1 more source

Interactive effects of vascular risk burden and advanced age on cerebral blood flow. [PDF]

, 2014
Vascular risk factors and cerebral blood flow (CBF) reduction have been linked to increased risk of cognitive impairment and Alzheimer's disease (AD); however the possible moderating effects of age and vascular risk burden on CBF in late life remain ...
Bangen, Katherine J, Bondi, Mark W, Clark, Lindsay R, Delano-Wood, Lisa, Dev, Sheena I, Harmell, Alexandrea L, Liu, Thomas T, Nation, Daniel A, Salmon, David P, Wierenga, Christina E, Zlatar, Zvinka Z   +10 more
core   +1 more source

Granular Hydrogels as Modular Biomaterials: From Structural Design to Biological Responses

Advanced Healthcare Materials, EarlyView.
Granular hydrogels are now emerging as promising biomaterials due to their inherent microporousity, injectability, and modularity. They have shown improvements in cell viability and migration, cellular/tissue infiltration, host tissue integration, mitigated foreign body response, and tissue regeneration.
Asmasadat Vaziri, Renata Maia, Pei Zhang, Liliana Agresti, Jelmer Sjollema, Mohammad‐Ali Shahbazi, Hélder A. Santos   +6 more
wiley   +1 more source

Femoral Vessel Occlusion Enhances Cardiac and Cerebral Perfusion in a Porcine Model of Cardiac Arrest

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Closed chest compressions during cardiopulmonary resuscitation (CPR) mechanically circulate blood to the organs during cardiac arrest, yet cardiac arrest remains among the most fatal diseases, with a mortality rate that exceeds 85% to 90 ...
Joshua Y. Kim, Benjamin Usry, Maren L. Downing, Samuel W. Seigler, Heather Holman, Jennie H. Kwon, Kristi Helke, Rupak Mukherjee, Jeffrey A. Jones, Kristen M. Quinn   +9 more
doaj   +1 more source

Pulmonary Hemodynamics, Cerebral Oxygenation, Intracranial and Perfusion Pressures in Pulmonary Complications in Victims with Severe Brain Injury

Общая реаниматология, 2007
Objective: to study pulmonary hemodynamics, cerebral oxygenation, intracranial and perfusion pressures in pulmonary complications in victims with severe brain injury (SBI). Subjects and materials.
Yu. A. Churlyaev, V. Ya. Martynenkov, M. L. Sytin, L. Yu. Redkokasha, Yu. I. Mikhailovichev   +4 more
doaj   +1 more source

Smart Catheters for Diagnosis, Monitoring, and Therapy

Advanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman, Samiha Ahmed, Majed Othman Althumayri, Megan Guy, Darlenne Chavez Lugo, Frances S. Ligler, George T. Ligler, Rahmi Oklu, Hiroshi Kawahira, Michael J. McShane, Jun Kameoka, Jonathan Bova, Hatice Ceylan Koydemir   +12 more
wiley   +1 more source

Nonlinear and conventional biosignal analyses applied to tilt table test for evaluating autonomic nervous system and autoregulation [PDF]

, 2013
Copyright © Tseng et al.; Licensee Bentham Open. This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/ by-nc/3.0/) which permits unrestricted, non ...
Castiglioni P, Chun-Yuan Chang, Cleophas TJM, Greenhalgh T, Gupta J, Jiann-Shing Shieh, Li Tseng, Lu CW, Maysam F. Abbod, Reinhard M, Reinhard M, Sornmo L, Sung-Chun Tang, Tang S C, Thayer J F, Thayer J F, Yi-Ching Lin   +16 more
core   +1 more source

Thermally Drawn Multifunctional All‐Hydrogel Fibers for Anti‐Fibrotic and Multimodal Neural Interfaces

Advanced Materials, EarlyView.
Hydrogels demonstrate material properties that mimic the mechanical and chemical environments of biological tissues. Yet, they face challenges during their integration into 3D interfaces. By identifying a class of thermoplastic hydrogels, a strategy is developed to pattern hydrogels in thermally drawn fibers.
Changhoon Sung, Kum Seok Nam, Yeji Kim, Honey Kang, Kanghyeon Kim, Chanwoong Yoon, Somin Lee, Ain Chung, Jiheong Kang, Young‐Gyun Park, Alan Jung Park, Haider Butt, Hyunwoo Yuk, Seongjun Park   +13 more
wiley   +1 more source