Results 51 to 60 of about 565,623 (364)

Ketamine-Medetomidine General Anesthesia Occurs With Alternation of Cortical Electrophysiological Activity Between High and Low Complex States [PDF]

open access: yesarXiv, 2022
Anesthetic agents are known to induce a range of alterations in cortical electrophysiological activity, such as the rise of signature patterns, changes in statistical properties, and altered dynamic behavior of neural records. Plenty of methods can be used to monitor these changes, among them complexity metrics demonstrated to have the power to ...
arxiv  

General anesthesia reduces complexity and temporal asymmetry of the informational structures derived from neural recordings in Drosophila [PDF]

open access: yesPhys. Rev. Research 2, 023219 (2020), 2019
We apply techniques from the field of computational mechanics to evaluate the statistical complexity of neural recording data from fruit flies. First, we connect statistical complexity to the flies' level of conscious arousal, which is manipulated by general anesthesia (isoflurane).
arxiv   +1 more source

Comparison of the Anesthetic Techniques

open access: yesTheScientificWorldJournal, 2015
A great number of anesthetic techniques (general, regional, spinal, epidural, caudal, hypotensive, total intravenous, regional intravenous, inhalation, and nerve blocks) can be used for multiple surgical procedures [1–3].
A. Eroğlu   +3 more
semanticscholar   +1 more source

Spexin in the European sea bass, Dicentrarchus labrax: Characterization, brain distribution, and interaction with Gnrh and Gnih neurons

open access: yesJournal of Comparative Neurology, Volume 531, Issue 2, Page 314-335, February 2023., 2023
The main objective of this work was to obtain detailed information on the distribution and localization of the spexin (Spx) system in the sea bass brain. To this purpose, we first identified and characterized the spx1 gene and analyzed its expression in the central nervous system (CNS) of the European sea bass by using quantitative Real‐Time Polymerase
José A. Paullada‐Salmerón   +2 more
wiley   +1 more source

Macaque's Cortical Functional Connectivity Dynamics at the Onset of Propofol-Induced Anesthesia [PDF]

open access: yesarXiv, 2021
Propofol, when administered for general anesthesia, induces oscillatory dynamic brain states that are thought to underlie the drug's pharmacological effects. Despite the elucidation of propofol's mechanisms of action at the molecular level, its effects on neural circuits and overall cortical functioning, which eventually lead to unconsciousness, are ...
arxiv  

The thermodynamics of general and local anesthesia [PDF]

open access: yesBiophys. J. 2014, 106: 2143-2156, 2014
General anesthetics are known to cause depression of the freezing point of transitions in biomembranes. This is a consequence of ideal mixing of the anesthetic drugs in the membrane fluid phase and exclusion from the solid phase. Such a generic law provides physical justification of the famous Meyer-Overton rule.
arxiv   +1 more source

Managing Opioid-Tolerant Patients in the Perioperative Surgical Home. [PDF]

open access: yes, 2016
Management of acute postoperative pain is important to decrease perioperative morbidity and improve patient satisfaction. Opioids are associated with potential adverse events that may lead to significant risk.
Baratta, Jaime L.   +3 more
core   +3 more sources

Anesthesia for cesarean delivery: general or regional anesthesia—a systematic review

open access: yesAin Shams Journal of Anesthesiology, 2021
Background General anesthesia and regional anesthesia are the anesthetic techniques of choice for cesarean delivery. These anesthetic techniques have their effects on both the fetus and mother.
Mahadi Iddrisu, Zahid Hussain Khan
doaj   +1 more source

Automatic Ultrasound Image Segmentation of Supraclavicular Nerve Using Dilated U-Net Deep Learning Architecture [PDF]

open access: yesarXiv, 2022
Automated object recognition in medical images can facilitate medical diagnosis and treatment. In this paper, we automatically segmented supraclavicular nerves in ultrasound images to assist in injecting peripheral nerve blocks. Nerve blocks are generally used for pain treatment after surgery, where ultrasound guidance is used to inject local ...
arxiv  

Effect of mirror therapy in the treatment of phantom limb pain in amputees: A systematic review of randomized placebo‐controlled trials does not find any evidence of efficacy

open access: yesEuropean Journal of Pain, Volume 27, Issue 1, Page 3-13, January 2023., 2023
Abstract Background and Objective Phantom limb pain (PLP) concerns >50% of amputees and has a negative impact on their rehabilitation, mental health and quality of life. Mirror therapy (MT) is a promising strategy, but its effectiveness remains controversial.
Matthieu Guémann   +4 more
wiley   +1 more source

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