Results 51 to 60 of about 86,724 (164)

Propofol inhibits prokaryotic voltage-gated Na+ channels by promoting activation-coupled inactivation [PDF]

open access: yes, 2018
Propofol is widely used in the clinic for the induction and maintenance of general anesthesia. As with most general anesthetics, however, our understanding of its mechanism of action remains incomplete.
Carnevale, Vincenzo   +4 more
core   +1 more source

A comparative study of different induction techniques (Propofol-Placebo, Propofol-Ephedrine and Propofol- Placebo-Crystalloid) on intubating conditions after rocuronium administration [PDF]

open access: yes, 2007
This was a prospective randomized double blind controlled study to compare intubating conditions at 60 seconds with rocuronium 0.6 mg/kg by using three different induction techniques: propofol-placebo (PP), propofol-ephedrine (PE) and propofol ...
Karis Misiran,, Muhd Helmi Azmi,
core  

Propofol inhibits the voltage-gated sodium channel NaChBac at multiple sites. [PDF]

open access: yes, 2018
Voltage-gated sodium (NaV) channels are important targets of general anesthetics, including the intravenous anesthetic propofol. Electrophysiology studies on the prokaryotic NaV channel NaChBac have demonstrated that propofol promotes channel activation ...
Bondarenko, Vasyl   +12 more
core   +1 more source

Robust photoregulation of GABA(A) receptors by allosteric modulation with a propofol analogue. [PDF]

open access: yes, 2012
Photochemical switches represent a powerful method for improving pharmacological therapies and controlling cellular physiology. Here we report the photoregulation of GABA(A) receptors (GABA(A)Rs) by a derivative of propofol (2,6-diisopropylphenol), a ...
Bruzik, Karol S   +8 more
core   +2 more sources

Efeitos do propofol sobre o sistema de condução cardíaca Efectos del propofol sobre el sistema de conducción cardíaco Effects of propofol on the cardiac conduction system

open access: yesRevista Brasileira de Anestesiologia, 2010
JUSTIFICATIVA E OBJETIVOS: Alguns estudos têm demonstrado que o uso do propofol é, algumas vezes, associado a bradiarritmias ou reversão de arritmias para ritmo sinusal.
Paulo Warpechowski   +3 more
doaj   +1 more source

Controlling Level of Unconsciousness by Titrating Propofol with Deep Reinforcement Learning [PDF]

open access: yesarXiv, 2020
Reinforcement Learning (RL) can be used to fit a mapping from patient state to a medication regimen. Prior studies have used deterministic and value-based tabular learning to learn a propofol dose from an observed anesthetic state. Deep RL replaces the table with a deep neural network and has been used to learn medication regimens from registry ...
arxiv  

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  

Hemodynamic Stability during Induction of Anesthesia in Elderly Patients: Propofol + Ketamine versus Propofol + Etomidate [PDF]

open access: yesJournal of Cardiovascular and Thoracic Research, 2013
Introduction: Various methods have been recommended to prevent hemodynamic instability caused by propofol induction. Current study evaluates hemodynamic effects of ketamine and propofol in comparison to etomidate and propofol during anesthesia induction.
Hamzeh Hosseinzadeh   +3 more
doaj   +1 more source

Cerebral and cardiovascular effects of analgesic doses of ketamine during a target controlled general anesthesia: a prospective randomized study [PDF]

open access: yes, 2017
Introduction: Ketamine is increasingly being used in various pain settings. The purpose of this study was to assess the effect of an analgesic dose of ketamine in the bispectral index (BIS), spectral edge frequency (SEF-95), density spectral array (DSA),
Araujo, A. M.   +3 more
core   +1 more source

Automated Multi-Drugs Administration During Total Intravenous Anesthesia Using Multi-Model Predictive Control [PDF]

open access: yesarXiv, 2023
In this paper, a multi-model predictive control approach is used to automate the co-administration of propofol and remifentanil from bispectral index measurement during general anesthesia. To handle the parameter uncertainties in the non-linear output function, multiple Extended Kalman Filters are used to estimate the state of the system in parallel ...
arxiv  

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