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Sedation sevoflurane

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https://www.readbyqxmd.com/read/29132231/the-use-of-desflurane-for-neurosurgical-procedures-in-rhesus-macaque-macaca-mulatta
#1
Henri Gmj Bertrand, Charlotte Sandersen, Paul A Flecknell
Volatile agents are widely used to anaesthetise laboratory non-human primates as they allow a rapid induction and recovery as well as an easy adjustment of the anaesthesia plan. Desflurane is currently the volatile agent with the lowest solubility in blood, and hence enables the most rapid onset of anaesthesia and most rapid recovery. This study aimed to investigate the suitability of desflurane for maintenance of general anaesthesia in rhesus macaques undergoing elective experimental neurosurgery. Fourteen primates (five males and nine females) were sedated with ketamine (10 mg kg(-1)) and anaesthesia was induced with propofol (usually 8 mg kg(-1) IV)...
January 1, 2017: Laboratory Animals
https://www.readbyqxmd.com/read/29121298/human-neural-correlates-of-sevoflurane-induced-unconsciousness
#2
B J A Palanca, M S Avidan, G A Mashour
Sevoflurane, a volatile anaesthetic agent well-tolerated for inhalation induction, provides a useful opportunity to elucidate the processes whereby halogenated ethers disrupt consciousness and cognition. Multiple molecular targets of sevoflurane have been identified, complementing imaging and electrophysiologic markers for the mechanistically obscure progression from wakefulness to unconsciousness. Recent investigations have more precisely detailed scalp EEG activity during this transition, with practical clinical implications...
October 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29039138/the-role-of-gaba-receptor-agonists-in-anesthesia-and-sedation
#3
REVIEW
Janette Brohan, Basavana G Goudra
GABA (γ-aminobutyric acid) receptors, of which there are two types, are involved in inhibitory synapses within the central nervous system. The GABAA receptor (GABAAR) has a central role in modern anesthesia and sedation practice, which is evident from the high proportion of agents that target the GABAAR. Many GABAAR agonists are used in anesthesia practice and sedation, including propofol, etomidate, methohexital, thiopental, isoflurane, sevoflurane, and desflurane. There are advantages and disadvantages to each GABAAR agonist currently in clinical use...
October 2017: CNS Drugs
https://www.readbyqxmd.com/read/28969317/dexmedetomidine-mediated-neuroprotection-against-sevoflurane-induced-neurotoxicity-extends-to-several-brain-regions-in-neonatal-rats
#4
J F Perez-Zoghbi, W Zhu, M R Grafe, A M Brambrink
Background: Exposure of infant animals to clinically used anaesthetics is associated with acute structural brain abnormalities and development functional alterations. The α 2 -adrenoceptor agonist dexmedetomidine (DEX) induces sedation, analgesia, and provides neuroprotection in experimental brain injury models. However, it is unknown whether DEX also affords protection in the developing brain against anaesthesia using sevoflurane (SEVO), which is commonly used in paediatric anaesthesia...
September 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28969315/alternative-technique-or-mitigating-strategy-for-sevoflurane-induced-neurodegeneration-a-randomized-controlled-dose-escalation-study-of-dexmedetomidine-in-neonatal-rats
#5
J-R Lee, E P Lin, R D Hofacer, B Upton, S Y Lee, L Ewing, B Joseph, A W Loepke
Background: Brain injury in newborn animals from prolonged anaesthetic exposure has raised concerns for millions of children undergoing anaesthesia every yr. Alternative anaesthetic techniques or mitigating strategies are urgently needed to ameliorate potentially harmful effects. We tested dexmedetomidine, both as a single agent alternative technique and as a mitigating adjuvant for sevoflurane anaesthesia. Methods: Neonatal rats were randomized to three injections of dexmedetomidine (5, 25, 50, or 100 µg kg -1 every 2 h), or 6 h of 2...
September 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28966686/sevoflurane-may-be-more-beneficial-than-propofol-in-patients-receiving-endoscopic-variceal-ligation-and-endoscopic-variceal-sclerotherapy-a-randomized-double-blind-study
#6
Linghua Tang, Huimin Liu, Yang Wu, Mei Li, Wei Li, Meng Jiang, Jiabao Hou, Ying Jiang, Zhongyuan Xia, Qingtao Meng
The aim of the present study was to evaluate the safety and efficacy of various general anesthesia regimens during endoscopic variceal ligation (EVL) and endoscopic variceal sclerotherapy (EVS). A total of 123 patients with American Society of Anesthesiologists physical status III and IV, aged 40-70 years, undergoing general anesthesia for EVL and EVS were randomly divided into two groups: Sevoflurane anesthesia (group S; n=60) and propofol anesthesia (group P; n=60). Vital signs, particularly heart rate (HR) and mean arterial pressure (MAP), were monitored...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28948899/comparison-of-emergence-times-and-quality-between-isoflurane-and-sevoflurane-in-rhesus-macaque-macaca-mulatta-undergoing-neurosurgical-procedure
#7
Henri G M J Bertrand, Svenja Springer, Wesley Burnside, Charlotte Sandersen, Paul A Flecknell
Volatile agents for anaesthesia are widely used for anaesthetizing laboratory primates, and isoflurane is one of the most frequently used agents. Sevoflurane has been shown to offer a more rapid recovery than isoflurane in a number of species, but no comparisons have been made in non-human primates. This study compared the recovery characteristics of isoflurane and sevoflurane in rhesus macaques undergoing experimental neurosurgery. Twelve primates (7 males and 5 females) were randomly allocated to the treatment groups...
October 2017: Laboratory Animals
https://www.readbyqxmd.com/read/28888583/food-and-drug-administration-warning-on-anesthesia-and-brain-development-implications-for-obstetric-and-fetal-surgery
#8
Olutoyin A Olutoye, Byron Wycke Baker, Michael A Belfort, Oluyinka O Olutoye
There has been growing concern about the detrimental effects of certain anesthetic agents on the developing brain. Preclinical studies in small animal models as well as nonhuman primates suggested loss or death of brain cells and consequent impaired neurocognitive function following anesthetic exposure in neonates and late gestation fetuses. Human studies in this area are limited and currently inconclusive. On Dec. 14, 2016, the US Food and Drug Administration issued a warning regarding impaired brain development in children following exposure to certain anesthetic agents used for general anesthesia, namely the inhalational anesthetics isoflurane, sevoflurane, and desflurane, and the intravenous agents propofol and midazolam, in the third trimester of pregnancy...
September 6, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28879316/survey-of-the-sevoflurane-sedation-status-in-one-provincial-dental-clinic-center-for-the-disabled
#9
Chang-Hyun Park, Seungoh Kim
BACKGROUND: Sevoflurane sedation in pediatric and disabled patients has the advantage of faster induction and recovery compared to general anesthesia, as well as minimum influence on the respiratory and cardiovascular functions, and airway protective reflexes. This study aimed to evaluate the clinical efficacy of sevoflurane sedation used in dental treatment at one provincial dental clinic center for the disabled. METHODS: We investigated patients' gender, age, reasons for undergoing sedation, medication history prior to treatment, duration of anesthesia, treatment length, type of treatment, and yearly patterns, for 387 cases of dental treatment performed using sevoflurane sedation from January 2013 to October 2016...
December 2016: J Dent Anesth Pain Med
https://www.readbyqxmd.com/read/28861655/inhaled-anesthetic-agent-sedation-in-the-icu-and-trace-gas-concentrations-a-review
#10
REVIEW
Jennifer Herzog-Niescery, Hans-Martin Seipp, Thomas Peter Weber, Martin Bellgardt
There is a growing interest in the use of volatile anesthetics for inhalational sedation of adult critically ill patients in the ICU. Its safety and efficacy has been demonstrated in various studies and technical equipment such as the anaesthetic conserving device (AnaConDa™; Sedana Medical, Uppsala, Sweden) or the MIRUS™ system (Pall Medical, Dreieich, Germany) have significantly simplified the application of volatile anesthetics in the ICU. However, the personnel's exposure to waste anesthetic gas during daily work is possibly disadvantageous, because there is still uncertainty about potential health risks...
August 31, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28767479/resistance-to-propofol-induction-in-a-patient-taking-modafinil-a-case-report
#11
Timothy N Harwood
After sedation with midazolam, induction of anesthesia with propofol was attempted in a patient taking modafinil. However, even after administration of a total of 6 mg/kg propofol IV, the patient continued to respond to tactile stimulation. Concurrently, the bispectral index was 72. Subsequent administration of low concentration sevoflurane by facemask induced an anesthetic depth that allowed unproblematic insertion of a laryngeal mask airway. Anesthesia for ophthalmologic surgery was maintained with sevoflurane...
August 1, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28759530/sevoflurane-attenuates-systemic-inflammation-compared-with-propofol-but-does-not-modulate-neuro-inflammation-a-laboratory-rat-study
#12
Beatrice Beck-Schimmer, Lukas Baumann, Tanja Restin, Philipp Eugster, Melanie Hasler, Christa Booy, Martin Schläpfer
BACKGROUND: Septic encephalopathy is believed to be a result of neuro-inflammation possibly triggered by endotoxins, such as lipopolysaccharides (LPS). Modulation of the immune system is a property of volatile anaesthetics. OBJECTIVE: We aimed to investigate the systemic and cerebral inflammatory response in a LPS-induced sepsis model in rats. We compared two different sedation strategies, intravenous propofol and the volatile anaesthetic sevoflurane, with the hypothesis that the latter may attenuate neuro-inflammatory processes...
July 28, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28670397/combined-administration-of-a-sedative-dose-sevoflurane-and-60-oxygen-reduces-inflammatory-responses-to-sepsis-in-animals-and-in-human-pmbcs
#13
Er-Fei Zhang, Zuo-Xu Hou, Tian Shao, Wan-Wan Yang, Bin Hu, Xiao-Xia Wang, Ze-Xin Zhang, Yi Huang, Li-Ze Xiong, Li-Chao Hou
Our study aims to investigate the effects of the inhalation of subanesthestic doses of sevoflurane combined with oxygen on sepsis. Male Sprague-Dawley rats or Male ICR/Km mice underwent caecal ligation and puncture (CLP) or intraperitoneal injection of lipopolysccharide (LPS) to induce sepsis, while sham rats were used as control. Then, rats were treated with the inhalation of sevoflurane in oxygen; and air or 100% oxygen was used as control. Seven-day survival, lung injury and inflammatory factors were assessed...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28614221/correlation-of-mdr1-gene-polymorphisms-with-anesthetic-effect-of-sevoflurane-remifentanil-following-pediatric-tonsillectomy
#14
Nian-Jun Shi, Wei-Xia Zhang, Ning Zhang, Li-Na Zhong, Ling-Ping Wang
BACKGROUND: The motive of this study was to investigate the collaboration between MDR1 gene polymorphisms and anesthetic effects following pediatric tonsillectomy. METHODS: All together 178 children undergoing tonsillectomy with preoperative sevoflurane-remifentanil anesthesia were selected. In order to determine MDR1 gene polymorphisms of 3435C > T, 1236C > T, and 2677G > T/A, polymerase chain reaction-restriction fragment length polymorphism was used...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28611601/lack-of-responsiveness-during-the-onset-and-offset-of-sevoflurane-anesthesia-is-associated-with-decreased-awake-alpha-oscillation-power
#15
Kara J Pavone, Lijuan Su, Lei Gao, Ersne Eromo, Rafael Vazquez, James Rhee, Lauren E Hobbs, Reine Ibala, Gizem Demircioglu, Patrick L Purdon, Emery N Brown, Oluwaseun Akeju
Anesthetic drugs are typically administered to induce altered states of arousal that range from sedation to general anesthesia (GA). Systems neuroscience studies are currently being used to investigate the neural circuit mechanisms of anesthesia-induced altered arousal states. These studies suggest that by disrupting the oscillatory dynamics that are associated with arousal states, anesthesia-induced oscillations are a putative mechanism through which anesthetic drugs produce altered states of arousal. However, an empirical clinical observation is that even at relatively stable anesthetic doses, patients are sometimes intermittently responsive to verbal commands during states of light sedation...
2017: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/28604090/anesthetic-management-of-a-patient-with-multiple-sclerosis
#16
Naohiro Ohshita, Shoko Gamoh, Masahiko Kanazumi, Masahiro Nakajima, Yoshihiro Momota, Yasuo M Tsutsumi
A 54-year-old woman diagnosed with multiple sclerosis (MS) at the age of 19 years was scheduled to undergo temporomandibular joint mobilization. She was currently in a remission phase from her MS but with persistent sequelae, including impaired eyesight and muscle weakness of the limbs. In addition, the blood vessels in her upper limbs were compromised by the formation of internal shunts secondary to vascular prosthesis replacements for plasma exchange therapy in MS. After a previous joint mobilization surgery, her temporomandibular joint developed adhesions with resultant trismus...
December 0: Anesthesia Progress
https://www.readbyqxmd.com/read/28598927/intraoperative-analgesia-nociception-index-guided-fentanyl-administration-during-sevoflurane-anesthesia-in-lumbar-discectomy-and-laminectomy-a-randomized-clinical-trial
#17
RANDOMIZED CONTROLLED TRIAL
Henry D Upton, Guy L Ludbrook, Andrew Wing, Jamie W Sleigh
BACKGROUND: The "Analgesia Nociception Index" (ANI; MetroDoloris Medical Systems, Lille, France) is a proposed noninvasive guide to analgesia derived from an electrocardiogram trace. ANI is scaled from 0 to 100; with previous studies suggesting that values ≥50 can indicate adequate analgesia. This clinical trial was designed to investigate the effect of intraoperative ANI-guided fentanyl administration on postoperative pain, under anesthetic conditions optimized for ANI functioning...
July 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28571236/the-effect-of-sevoflurane-plus-propofol-on-pain-and-complications-after-laminectomy-a-randomized-double-blind-clinical-trial
#18
Aminolah Vasigh, Fatemeh Najafi, Molouk Jaafarpour, Javaher Khajavikhan, Ali Khani
INTRODUCTION: Pain is one of the most important reasons for the patients concern after surgery. The perfect sedative should have properties like rapid onset, least pain and adverse effects. AIM: To assess the effect of sevoflurane plus propofol on postoperative pain, haemodynamic stability and complication after lumbar disc surgery. MATERIALS AND METHODS: This was a randomized double- blind clinical trial. A total of 75 patients scheduled for elective lumbar disc surgery with simple random sampling design received sevoflurane (n=25, induced with Thiopentone and maintained with sevoflurane), propofol (n=25, induced and maintained with propofol) and sevoflurane plus propofol (n=25, induced with propofol and maintained with sevoflurane)...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28567612/uncontrolled-delivery-of-liquid-volatile-anaesthetic-when-using-the-anaesthetic-conserving-device
#19
Igor Karnjuš, Dušan Mekiš, Miljenko Križmarić
During patient sedation with liquid volatile anaesthetic, some problems may occur through a process called auto-pumping, defined as an expansion of bubbles inside the syringe, which can lead to uncontrolled anaesthetic delivery. The study examined how the temperature of liquid volatile anaesthetics (sevoflurane and isoflurane) and the presence of gas bubbles in the syringe affect the occurrence of auto-pumping when using the anaesthetic conserving device (ACD, AnaConDa™, Sedana Medical, Uppsala, Sweden). Four different circumstances for each volatile anaesthetic were tested with a bench study: volatile anaesthetic at room temperature or precooled with and without the presence of gas bubbles in the syringe...
May 31, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28506550/cardioprotective-efficacy-of-sevoflurane-vs-propofol-during-induction-and-or-maintenance-in-patients-undergoing-coronary-artery-revascularization-surgery-without-pump-a-randomized-trial
#20
J L Guerrero Orriach, M Galán Ortega, A Ramirez Fernandez, M Ramirez Aliaga, M I Moreno Cortes, D Ariza Villanueva, A Florez Vela, J Alcaide Torres, C Santiago Fernandez, E Matute Gonzalez, E Alsina Marcos, J J Escalona Belmonte, M Rubio Navarro, L Garrido Sanchez, J Cruz Mañas
PURPOSE: Pre and post-operative administration of sevoflurane in myocardial revascularization surgery provides enhanced cardioprotective effects exerted by pharmacologic pre- and post-conditioning, as compared to propofol. The identification of the enzymes involved in conditioning mechanisms is crucial to the understanding of the effects of sevoflurane in cardiac surgery patients. The impact of sevoflurane on another crucial target organ-the kidney-was also assessed. METHODS: Ninety patients undergoing off-pump myocardial revascularization surgery were allocated to receive either intra- and postoperative sevoflurane (SS), intraoperative sevoflurane and postoperative propofol (SP), or intra- and postoperative propofol (PP))...
September 15, 2017: International Journal of Cardiology
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