Results 41 to 50 of about 473,768 (301)

Effects of two different anesthesia-analgesia methods on incidence of postoperative delirium in elderly patients undergoing major thoracic and abdominal surgery: study rationale and protocol for a multicenter randomized controlled trial [PDF]

open access: yes, 2015
Background: Delirium is a common complication in elderly patients after surgery and associated with increased morbidity and mortality. Studies suggest that deep anesthesia and intense pain are important precipitating factors of postoperative delirium ...
Bin-Jiang Zhao   +15 more
core   +1 more source

The automatic detection of lumber anatomy in epidural injections for ultrasound guidance [PDF]

open access: yesarXiv, 2023
The purpose of this paper is to help the anesthesiologist to find the epidural depth automatically to make the first attempt to enter the path of the needle into the patient's body while it is clogged with bone and avoid causing a puncture in the surrounding areas of the patient`s back.
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

An Update on Drugs Used for Lumbosacral Epidural Anesthesia and Analgesia in Dogs

open access: yesFrontiers in Veterinary Science, 2017
This review aims to report an update on drugs administered into the epidural space for anesthesia and analgesia in dogs, describing their potential advantages and disadvantages in the clinical setting.
P. Steagall   +3 more
semanticscholar   +1 more source

Towards Real-World Applications of Personalized Anesthesia Using Policy Constraint Q Learning for Propofol Infusion Control [PDF]

open access: yes, 2023
Automated anesthesia promises to enable more precise and personalized anesthetic administration and free anesthesiologists from repetitive tasks, allowing them to focus on the most critical aspects of a patient's surgical care. Current research has typically focused on creating simulated environments from which agents can learn.
arxiv   +1 more source

Comparison of the Effect of Spinal, Epidural, and Combined of Neuroaxial Anesthesia on Maternal and Fetal Outcomes of Normal Vaginal Delivery: A Clinical Trial Study

open access: yesمجله دانشکده پزشکی اصفهان, 2019
Background: Natural delivery process is accompanied by severe pain during labor, and various ways of reducing it have been presented so far, of them, spinal anesthesia is one of the most commonly used methods.
Minoo Movahedi, Elham Madani-Naeini
doaj   +1 more source

The thermodynamics of general anesthesia [PDF]

open access: yesBiophys. J. 92 (2007) 3159-3165, 2006
It is known that the action of general anesthetics is proportional to their partition coefficient in lipid membranes (Meyer-Overton rule). This solubility is, however, directly related to the depression of the temperature of the melting transition found close to body temperature in biomembranes. We propose a thermodynamic extension of the Meyer-Overton
arxiv   +1 more source

A Model-Based Architecture for Automatic Anesthesia Infusion [PDF]

open access: yesarXiv, 2021
This paper presents a model-based control architecture. Based on the Medical Cyber-physical Systems (MCPS) concept, we construct a safe and reliable automatic anesthesia control closed-loop system. The control architecture uses the patient's propofol pharmacokinetic/pharmacodynamic model, using the calculated results as a feedback signal to correct the
arxiv  

Radical pairs may play a role in xenon-induced general anesthesia [PDF]

open access: yesSci Rep 11, 6287 (2021), 2020
Understanding the mechanisms underlying general anesthesia would be a key step towards understanding consciousness. The process of xenon-induced general anesthesia has been shown to involve electron transfer, and the potency of xenon as a general anesthetic exhibits isotopic dependence. We propose that these observations can be explained by a mechanism
arxiv   +1 more source

Neuraxial modulation for treatment of VT storm. [PDF]

open access: yes, 2014
In the hyperadrenergic state of VT storm where shocks are psychologically and physiologically traumatizing, suppression of sympathetic outflow from the organ level of the heart up to higher braincenters plays a significant role in reducing the propensity
Shivkumar, Kalyanam, Tung, Roderick
core   +1 more source

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