Results 31 to 40 of about 41,923 (121)
The thermodynamics of general anesthesia [PDF]
Biophys. 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
Towards Real-World Applications of Personalized Anesthesia Using Policy Constraint Q Learning for Propofol Infusion Control [PDF]
, 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
Reduced neural activity during volatile anesthesia compared to TIVA: evidence from a novel EEG signal processing analysis [PDF]
arXiv, 2020 Post-operative cognitive decline is a well-known phenomenon and of crucial importance especially in the elderly. General anesthesia can be accomplished by inhalation-based (volatile) or total intravenous anesthesia (TIVA). While their effects on post-operative symptoms have been investigated, little is known about their influence on brain ...
arxiv
Dynamics of airflow in a short inhalation [PDF]
, 2015 During a rapid inhalation, such as a sniff, the flow in the airways accelerates and decays quickly. The consequences for flow development and convective trans- port of an inhaled gas were investigated in a subject geometry extending from the nose to the bronchi.
arxiv +1 more source
Вестник анестезиологии и реаниматологии, 2017 A randomized trial was conducted in 22 patients with a body mass index of 44.9 ± 1.6 kg/m2 and morbid obesity who underwent endoscopic sleeve gastroplasty.
M. I. Neimark +2 more
doaj +1 more source
Inhalation anesthesia and stress in children with oncological pathology
Zdorovʹe Rebenka, 2022 Background. Children with cancer undergo many operations and procedures that require anesthesia in the acute phase of the disease or during remission. An integral element of a safe anesthesia plan is the consideration of direct tumor effects.
V.I. Snisar, D.V. Myronov
doaj +1 more source
Increasing Robustness of the Anesthesia Process from Difference Patient's Delay Using a State-Space Model Predictive Controller [PDF]
Procedia Engineering 15 (2011) 928-932, 2013 The process of anesthesia is nonlinear with time delay and also there are some constraints which have to be considered in calculating administrative drug dosage. We present an Extended Kalman Filter (EKF) observer to estimate drug concentration in the patient's body and use this estimation in a state-space based Model of Predictive Controller (MPC) for
arxiv +1 more source
Hysteresis in anesthesia and recovery: Experimental observation and dynamical mechanism [PDF]
arXiv, 2020 The dynamical mechanism underlying the processes of anesthesia-induced loss of consciousness and recovery is key to gaining insights into the working of the nervous system. Previous experiments revealed an asymmetry between neural signals during the anesthesia and recovery processes.
arxiv
Journal of Infection and Public Health, 2021 The purpose is to explore the effect of different anesthesia methods on pulmonary infection after the operation. 120 patients who underwent surgery from January 2015 to August 2018 were selected in three groups: group A (n = 40), group B (n = 40), and ...
Qingqing Huang +5 more
doaj
The Advantages of Low-Flow Inhalational Anesthesia
Общая реаниматология, 2005 The paper deals with the economical and ecological use of inhalation anesthetics in low-flow anesthesia (LFA, 1—0.5 l/ min) and high-flow anesthesia (HFA, more than 2—6 l/min).
P. Torok +8 more
doaj +1 more source