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Susanne Koch, Leopold Rupp, Christine Prager, Rudolf Mörgeli, Sylvia Kramer, Klaus Dieter Wernecke, Astrid Fahlenkamp, Claudia Spies
OBJECTIVE: In pediatric patients, anaesthesia induction is often performed with intravenous Propofol or Sevoflurane inhalation. Although epileptiform discharges have been observed during inductions with Sevoflurane, their occurrence has not been investigated for i.v. Propofol inductions. The aim of this study is to compare the incidence of epileptiform discharges in children during anaesthesia induction using Propofol versus Sevoflurane. METHODS: Prospective, observational cohort study in children aged 0...
June 8, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
Ai-Jie Liu, Chun-Xia Pang, Guo-Qiang Liu, Shi-Duan Wang, Chun-Qin Chu, Lin-Zhang Li, Yan Dong, De-Zhang Zhu
We aimed to investigate whether the cardioprotection of sevoflurane against ischemia/reperfusion (IR) injury is via inhibiting endoplasmic reticulum stress (ERS). The rat in vivo model of myocardial IR injury was induced by ligation of the left anterior descending (LAD) coronary artery. Sevoflurane significantly ameliorated the reduced cardiac function, increased infarct size and elevated troponin I level and lactate dehydrogenase (LDH) activity in plasma induced by IR injury. Sevoflurane suppressed the I/R-induced myocardial apoptosis...
June 12, 2018: Canadian Journal of Physiology and Pharmacology
Dian-Shi Wang, Kirusanthy Kaneshwaran, Gang Lei, Fariya Mostafa, Junhui Wang, Irene Lecker, Sinziana Avramescu, Yu-Feng Xie, Nathan K Chan, Alejandro Fernandez-Escobar, Junsung Woo, Darren Chan, Amy J Ramsey, Jeremy M Sivak, C Justin Lee, Robert P Bonin, Beverley A Orser
BACKGROUND: Postoperative delirium is associated with poor long-term outcomes and increased mortality. General anesthetic drugs may contribute to delirium because they increase cell-surface expression and function of α5 subunit-containing γ-aminobutyric acid type A receptors, an effect that persists long after the drugs have been eliminated. Dexmedetomidine, an α2 adrenergic receptor agonist, prevents delirium in patients and reduces cognitive deficits in animals. Thus, it was postulated that dexmedetomidine prevents excessive function of α5 γ-aminobutyric acid type A receptors...
June 8, 2018: Anesthesiology
Thomas Thiery, Tarek Lajnef, Etienne Combrisson, Arthur Dehgan, Pierre Rainville, George A Mashour, Stefanie Blain-Moraes, Karim Jerbi
Rhythmic neuronal synchronization across large-scale networks is thought to play a key role in the regulation of conscious states. Changes in neuronal oscillation amplitude across states of consciousness have been widely reported, but little is known about possible changes in the temporal dynamics of these oscillations. The temporal structure of brain oscillations may provide novel insights into the neural mechanisms underlying consciousness. To address this question, we examined long-range temporal correlations (LRTC) of EEG oscillation amplitudes recorded during both wakefulness and anesthetic-induced unconsciousness...
June 6, 2018: NeuroImage
Di Guo, Yanli Li, Haiyun Wang, Xinyue Wang, Wei Hua, Qingkai Tang, Lumin Miao, Guolin Wang
Animal studies have demonstrated that propofol post-conditioning produces long-term neuroprotection in focal cerebral ischemia-reperfusion injury. However, whether propofol post-conditioning provides neuroprotection in human beings has never been explored. The aim of this study was to evaluate the role of propofol post-conditioning on oxidative stress and post-operative cognitive function following aneurysm clipping. Sixty patients undergoing intracranial aneurysm clipping were randomized into a propofol post-conditioning group or a sevoflurane group...
June 8, 2018: International Journal of Neuroscience
Ha Yeon Kim, Sook Young Lee, Seyoon Kang, Bora Kim, Yeo Rae Moon, Ji Eun Kim
Background: Remifentanil infusion during emergence lowers cough. Effect-site concentration (Ce) of remifentanil using target-controlled infusion (TCI) has been evaluated in previous studies. Recent studies revealed the existence of sex-related differences in remifentanil Ce in young and elderly patients. Thus, there was the need to re-evaluate the effect of age in single sex. We investigated the remifentanil Ce for suppressing emergence cough in young and elderly male patients and evaluated the age-related differences...
2018: Clinical Interventions in Aging
R S Mangus, S B Kinsella, D T Farar, J A Fridell, L T Woolf, C A Kubal
BACKGROUND: Few studies have assessed the ability of inhaled anesthetic agents to ameliorate ischemia-reperfusion injury (IRI) in liver transplantation (LT). This study compares inhaled anesthetics in early liver allograft IRI. LT recipient and organ donor data were extracted retrospectively for all LTs at a single center between 2001 and 2015. METHODS: LT recipient and organ donor data were extracted retrospectively for all LTs at a single center between 2001 and 2015...
June 2018: Transplantation Proceedings
Nicolò Columbano, Antonio Scanu, Lauren Duffee, Valentino Melosu, Giovanni Sotgiu, Bernd Driessen
OBJECTIVE: To determine sevoflurane's minimum alveolar concentration (MACSEVO ) and its cardiopulmonary effects in sheep. STUDY DESIGN: Prospective experimental study. ANIMALS: A group of 10 female nonpregnant Sardinian milk sheep. METHODS: Anesthesia was induced in each sheep twice with sevoflurane in oxygen. After a 30 minute equilibration at end-tidal sevoflurane concentration (Fe'Sevo) of 2.8%, an electrical stimulus (5 Hz/1 ms/50 mA) was applied to the right thoracic limb for 1 minute or until gross purposeful movement occurred...
February 3, 2018: Veterinary Anaesthesia and Analgesia
Xianwen Hu, Jingxian Wang, Li Zhang, Qiquan Zhang, Xiaowen Duan, Ye Zhang
Hemorrhage shock could initiate endoplasmic reticulum stress (ERS) and then induce neuronal apoptosis. The aim of this study was to investigate whether sevoflurane postconditioning could attenuate brain injury via suppressing apoptosis induced by ERS. Seventy male rats were randomized into five groups: sham, shock, low concentration (sevo1, 1.2%), middle concentration (sevo2, 2.4%) and high concentration (sevo3, 3.6%) of sevoflurane postconditioning. Hemorrhage shock was induced by removing 40% of the total blood volume during an interval of 30 min...
June 2, 2018: Brain Research
Yuri Hase, Kuniaki Suzuki, Nobuhito Kamekura, Makiko Shibuya, Yu Takahashi, Kosuke Namba, Toshiaki Fujisawa
INTRODUCTION: It is difficult to quantify poorly soluble volatile anesthetics in aqueous solutions; this necessitates the development of alternative prompt methods to analyze the in vivo blood concentrations of anesthetics for the clinical assessment of anesthesia depth. In this study, we demonstrated that the difficulties can be overcome by using volatile organic compound (VOC) sensors, which allow the levels of vaporized VOCs to be quantified in several seconds and obviate the need for conventional techniques such as gas chromatography or nuclear magnetic resonance (NMR)...
May 31, 2018: Journal of Pharmacological and Toxicological Methods
Sebastian Arts, Hans Delye, Erik J van Lindert, Laura Blok, Wilfred Borstlap, Jacques Driessen
OBJECTIVE: The aim of this study was to evaluate pre-, intra-, and postoperative anesthetic parameters in endoscopic strip craniectomy in order to improve anesthesiological care. MATERIALS AND METHODS: This is a retrospective patient cohort study of our first 121 patients treated by endoscopic strip craniectomy. Preoperative as well as intra- and postoperative anesthesiological and neurological parameters were analyzed. Furthermore, the need for intensive care unit admission, blood loss, and blood transfusion rate were measured...
May 30, 2018: Paediatric Anaesthesia
Rong-Sheng Cui, Kai Wang, Zhong-Li Wang
The present study was designed to investigate the effects of sevoflurane inhalation anesthesia on the cognitive function of rats and to investigate the molecular mechanisms mediating this effect. A total of 100 healthy male Sprague-Dawley rats were divided into four groups: i) Control (air inhalation), ii) low-dose (1.5% sevoflurane inhalation for 2 h), iii) high-dose (3% sevoflurane inhalation for 2 h), and iv) nimodipine group (3% sevoflurane inhalation for 2 h + nimodipine). Sevoflurane inhalation anesthesia resulted in cognitive dysfunction in a dose-dependent manner...
May 2018: Experimental and Therapeutic Medicine
Jacques T YaDeau, Kara G Fields, Richard L Kahn, Vincent R LaSala, Scott J Ellis, David S Levine, Leonardo Paroli, Thuyvan H Luu, Matthew M Roberts
BACKGROUND: Neuraxial anesthesia is often viewed as superior to general anesthesia but may delay discharge. Comparisons do not typically use multimodal analgesics and nerve blockade. Combining nerve blockade with general anesthesia may reduce pain, opioid consumption, and nausea. We hypothesized that general anesthesia (with nerve blocks) would lead to earlier readiness for discharge, compared to spinal anesthesia (with nerve blocks). METHODS: All patients underwent ambulatory foot and ankle surgery, with a predicted case duration of 1-3 hours...
May 25, 2018: Anesthesia and Analgesia
Victor Manuel Neira, Waleed Al Madhoun, Kamyar Ghaffari, Nicholas Barrowman, Patrick Berrigan, William Splinter
BACKGROUND: The objective of this study was to assess the efficacy and cost of Malignant Hyperthermia Association of the United States-recommended methods for preparing Dräger Zeus anesthesia workstations (AWSs) for the malignant hyperthermia-susceptible patient. METHODS: We studied washout profiles of sevoflurane, isoflurane, and desflurane in 3 Zeus AWS following 3 preparation methods. AWS was primed with 1.2 minimum alveolar concentration anesthetic for 2 hours using 2 L/min fresh gas flow, 500 mL tidal volume, and 12/min respiratory rate...
May 25, 2018: Anesthesia and Analgesia
Lili Xu, Jianjun Shen, Lina Yu, Jianliang Sun, Min Yan
BACKGROUND: Sevoflurane can induce neonatal wide neurodegenerative and serious deficit to space learning tasks in rodents, however, the specific mechanism is still unclear. At present, the study tried to explore the possible role of autophagy in sevoflurane-induced neurotoxicity through observing the changes in the levels of autophagy in the newborn SD rat hippocampus tissue after sevoflurane exposure. METHODS: We used seventy-two SD rats of seven days receiving sevoflurane exposure to explore hippocampus neuron autophagy and apoptosis...
May 24, 2018: Brain Research Bulletin
Daniela Adriana Iliescu, Alexandra Ciubotaru, Mihai Aurelian Ghiţă, Adrian Marius Păun, Tudor Ion, Leon Zăgrean
Our study investigated the changes produced by diabetes on the visual pathway in a Wistar rat model. The impact of diabetes at 10 weeks after intraperitoneal streptozotocin (STZ) injection was evaluated through electrophysiological methods like visual evoked potentials (VEP) and electroretinogram (ERG). VEP and ERG were recorded simultaneously under different sevoflurane anesthetic depths. In all tested concentrations, sevoflurane affected the amplitude and latency of VEP and ERG component elements. With increasing anesthetic depths, sevoflurane increased the latencies of VEP N1, P1 and N2 peaks and ERG a- and b- waves in both control and diabetic animals...
January 2018: Romanian Journal of Ophthalmology
Daniela Adriana Iliescu, Alexandra Ciubotaru, Mihai Aurelian Ghiţă, Adrian Dumitru, Leon Zăgrean
Hyperglycemia and bright light are powerful stress agents that produce an enhanced retinal damage, when simultaneously acting on retina. Previous studies have shown that preconditioning with sevoflurane anesthesia offers a certain degree of protection to retinal cells against light damage. The objective of this study was to explore the effect of sevoflurane anesthetic preconditioning on a model of light-induced retinal degeneration in diabetic rats. Wistar rats that were randomly divided into four groups: control (rats exposed to photostress), group 1 (rats exposed to photostress and sevoflurane preconditioning), group 2 (diabetic rats exposed to photostress), group 3 (diabetic rats exposed to photostress and sevoflurane preconditioning) were used for this experiment...
January 2018: Romanian Journal of Ophthalmology
L Cornelissen, S E Kim, J M Lee, E N Brown, P L Purdon, C B Berde
BACKGROUND: General anaesthetics generate spatially defined brain oscillations in the EEG that relate fundamentally to neural-circuit architecture. Few studies detailing the neural-circuit activity of general anaesthesia in children have been described. The study aim was to identify age-related changes in EEG characteristics that mirror different stages of early human brain development during sevoflurane anaesthesia. METHODS: Multichannel EEG recordings were performed in 91 children aged 0-3 yr undergoing elective surgery...
June 2018: British Journal of Anaesthesia
Timothy Reynolds, Sumanna Sankaran, Wilson T Chimbira, Thuy Phan, Olubukola O Nafiu
PURPOSE: Sleep-disordered breathing (SDB) may be a critical risk factor for emergence agitation (EA). We hypothesized that SDB diagnosis is a predictor of EA in children after general anesthesia for ambulatory surgery. DESIGN: Prospective, observational, cohort study. METHODS: Children aged 4 to 17 years were assessed for the occurrence of EA. Differences in probability of EA were assessed using multivariable logistic regression analyses...
June 2018: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
Yusuke Murahata, Yoshiaki Hikasa, Sho Hayashi, Koki Shigematsu, Natsuki Akashi, Tomohiro Osaki, Takeshi Tsuka, Yoshiharu Okamoto, Tomohiro Imagawa
Remifentanil is an ultra-short-acting μ-opioid receptor agonist. The purpose of this study was to determine the relationship of the minimum alveolar concentration (MAC) of sevoflurane and other MAC derivatives, including the MAC for blocking adrenergic responses (MAC-BAR) and the MAC at which tracheal extubation is occurred (MAC-extubation), with or without remifentanil infusion. Six healthy adult beagle dogs were randomly anesthetized three times for determining the MAC-BAR (SEVMAC-BAR ), MAC (SEVMAC ), and MAC- extubation (SEVMAC-extubation ) of sevoflurane under infusion of saline and remifentanil at rates of 0...
May 21, 2018: Journal of Veterinary Medical Science
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