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https://www.readbyqxmd.com/read/28526149/pharmacogenomics-in-anesthesia
#1
REVIEW
Ramsey Saba, Alan D Kaye, Richard D Urman
A significant number of commonly administered medications in anesthesia show wide clinical interpatient variability. Some of these include neuromuscular blockers, opioids, local anesthetics, and inhalation anesthetics. Individual genetic makeup may account for and predict cardiovascular outcomes after cardiac surgery. These interactions can manifest at any point in the perioperative period and may also only affect a specific system. A better understanding of pharmacogenomics will allow for more individually tailored anesthetics and may ultimately lead to better outcomes, decreased hospital stays, and improved patient satisfaction...
June 2017: Anesthesiology Clinics
https://www.readbyqxmd.com/read/28523393/flavored-anesthetic-masks-for-inhalational-induction-in-children
#2
Aakriti Gupta, Preethy Joseph Mathew, Neerja Bhardwaj
OBJECTIVES: To evaluate the clinical efficacy of masking the odor of inhalational agents using fruit flavors on the anxiety behavior and compliance of children for inhalational induction. METHODS: A prospective randomized double blind, placebo controlled study was conducted on 60 unpremedicated children in the age group of 4-12 y. Thirty children received anesthetic masks smeared with a flavor of child's choice while the other 30 children were induced using masks without flavor...
May 19, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28518083/bronchoalveolar-lavage-of-murine-lungs-to-analyze-inflammatory-cell-infiltration
#3
Lien Van Hoecke, Emma Richelle Job, Xavier Saelens, Kenny Roose
Bronchoalveolar Lavage (BAL) is an experimental procedure that is used to examine the cellular and acellular content of the lung lumen ex vivo to gain insight into an ongoing disease state. Here, a simple and efficient method is described to perform BAL on murine lungs without the need of special tools or equipment. BAL fluid is isolated by inserting a catheter in the trachea of terminally anesthetized mice, through which a saline solution is instilled into the bronchioles. The instilled fluid is gently retracted to maximize BAL fluid retrieval and to minimize shearing forces...
May 4, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28504321/hemodynamic-responses-and-plasma-phenylephrine-concentrations-associated-with-intranasal-phenylephrine-in-children
#4
Lisa K Christensen, Valerie E Armstead, David P Bilyeu, Kenneth E Johnson, Robert H Friesen
INTRODUCTION: Intranasal phenylephrine, an alpha-1 adrenergic agonist, causes vasoconstriction of the nasal mucosa and is used to reduce bleeding associated with nasotracheal intubation or endoscopic sinus surgery. The purpose of this study was to describe the hemodynamic effects associated with plasma phenylephrine concentrations following topical intranasal administration of 0.25% and 0.5% phenylephrine in children. METHODS: After Institutional Review Board and parental approval, 77 children between the ages of 2 and 12 years were studied in a prospective, double-blind manner and randomized into three groups...
May 15, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28494877/prevalence-of-malignant-hyperthermia-diagnosis-in-hospital-discharge-records-in-california-florida-new-york-and-wisconsin
#5
Zhen Lu, Henry Rosenberg, Guohua Li
STUDY OBJECTIVE: Malignant hyperthermia (MH) is a rare yet potentially fatal pharmacogenetic disorder triggered by exposure to inhalational anesthetics and the depolarizing neuromuscular blocking agent succinylcholine. Epidemiologic data on the geographic variation in MH prevalence is scant. The objective of this study is to examine the prevalence of recorded MH diagnosis in patients discharged from hospitals in four states in the United States. DESIGN: Observational study...
June 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28480032/neuroprotection-provided-by-isoflurane-pre-conditioning-and-post-conditioning
#6
REVIEW
Ming Jiang, Liang Sun, Dong-Xia Feng, Zheng-Quan Yu, Rong Gao, Yuan-Zhao Sun, Gang Chen
Isoflurane, a volatile and inhalational anesthetic, has been extensively used in perioperative period for several decades. A large amount of experimental studies have indicated that isoflurane exhibits neuroprotective properties when it is administrated before or after (pre-conditioning and post-conditioning) neurodegenerative diseases (e.g., hypoxic ischemia, stroke and trauma). Multiple mechanisms are involved in isoflurane induced neuroprotection, including activation of glycine and γ-aminobutyric acid receptors, antagonism of ionic channels and alteration of the function and activity of other cellular proteins...
January 2017: Medical Gas Research
https://www.readbyqxmd.com/read/28472554/efficacy-of-intravenous-cobinamide-versus-hydroxocobalamin-or-saline-for-treatment-of-severe-hydrogen-sulfide-toxicity-in-a-swine-sus-scrofa-model
#7
Vikhyat S Bebarta, Normalynn Garrett, Matthew Brenner, Sari Mahon, Joseph K Maddry, Susan Boudreau, Maria Castaneda, Gerard Boss
BACKGROUND: Hydrogen sulfide (H2S) is a potentially deadly gas that naturally occurs in petroleum and natural gas. The Occupational Health and Safety Administration cites H2S as a leading cause of workplace gas inhalation deaths. Mass casualties of H2S toxicity may be caused by exposure from industrial accidents or release from oil field sites. H2S is also an attractive terrorism tool because of its high toxicity and ease with which it can be produced. Several potential antidotes have been proposed for hydrogen sulfide poisoning but none have been completely successful...
May 4, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28469778/the-protective-effect-and-mechanism-of-sevoflurane-on-lps-induced-acute-lung-injury-in-mice
#8
Qi-Feng Tang, Zhi-Yuan Fang, Cheng-Huan Shi
Acute lung injury (ALI) is a disturbance caused by infectious or non-infectious inflammation and lipopolysaccharide (LPS) could induce an artificial pathological ALI process. Sevoflurane has been demonstrated to be an inhaled anesthetic having anti-inflammatory and protective effects on inflammatory injury. To study the protective effects and mechanisms of sevoflurane on LPS-induced acute lung injury in mice. By assessing W/D ratio, sevofluranecan counteract the edema induced by LPS. The ELISA results showed that sevoflurane reduced IFN-γ production and increased IL-10 level...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28452873/platelet-and-coagulation-function-before-and-after-burn-and-smoke-inhalation-injury-in-sheep
#9
Nicolas J Prat, Maryanne C Herzig, Stefan Kreyer, Robbie K Montgomery, Bijaya K Parida, Katharina Linden, Vittorio Scaravilli, Slava M Belenkiy, Leopoldo C Cancio, Andriy I Batchinsky, Andrew P Cap
BACKGROUND: Smoke inhalation and burn injury remain a major source of morbidity and mortality. There is known dysregulation of hemostasis in burn patients, but either hyper- or hypocoagulation states are reported. Sheep are an established animal model for studying burn pathology and provide robust data on hemostatic function at baseline and after injury. METHODS: Following an IACUC-approved protocol, 15 sheep were anesthetized and subjected to a 40% full thickness burn with smoke inhalation...
April 27, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28452823/arterial-pressure-and-the-rate-of-elimination-of-crystalloid-fluid
#10
Robert G Hahn
Excretion of crystalloid fluid is slow during general anesthesia. The distribution and elimination of buffered Ringer's solution were analyzed to determine whether the rate of elimination correlates with a hemodynamic factor, consciousness, patient posture, or the type of general anesthesia. Data were derived from 4 separately published studies in which 30 volunteers and 48 anesthetized patients had received 0.833 (1 series 0.667) mL/kg/min of lactated or acetated Ringer's solution over 30 minutes. Frequent measurements of the blood hemoglobin and mean urinary excretion were used as input in a kinetic analysis according to a 2-volume model and covariates, using microconstants and mixed-effects modeling software...
June 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28445771/cyclin-dependent-kinase-5-collapsin-response-mediator-protein-2-pathway-may-mediate-sevoflurane-induced-dendritic-development-abnormalities-in-rat-cortical-neurons
#11
Yafang Liu, Daowei Lin, Chuiliang Liu, Yifan Zhao, Zhiwen Shen, Kun Zhang, Minghui Cao, Yujuan Li
Sevoflurane has been reported to induce neurotoxicity and cognitive impairment in the developing brains. However, the underlying molecular mechanisms remain poorly understood. Recent studies have demonstrated aberrant cyclin-dependent kinase 5 (CDK5) activity is implicated in inhaled anesthetic-induced neurotoxicity. CDK5/CRMP2 signaling is involved in the cortical and hippocampal dendritic development. The aim of present study is to investigate whether the CDK5/CRMP2 pathway mediates sevoflurane-induced dendritic development abnormalities...
April 24, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28444766/endoplasmic-reticulum-stress-mediates-distinct-impacts-of-sevoflurane-on-different-subfields-of-immature-hippocampus
#12
Gang Zhu, Lei Tao, Ronglin Wang, Ying Xue, Xingqin Wang, Shaosong Yang, Xude Sun, Guodong Gao, Zixu Mao, Qian Yang
Sevoflurane, a typical inhaled anesthetic, is widely used in patients of all ages during surgery. The negative effects, such as inducing cell death and damaging spatial memory, of sevoflurane on neurodevelopment have raised increasing concerns in recent years. However, the molecular mechanism remains unclear. The current study focused on the crucial role of endoplasmic reticulum (ER) stress in sevoflurane-induced hippocampal injury. Three-week-old rats were exposed to sevoflurane or control air for 5h with or without ER stress inhibitor (4-phenylbutyric acid, 4-PBA) injection...
April 26, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28432702/tunable-porous-coordination-polymers-for-the-capture-recovery-and-storage-of-inhalation-anesthetics
#13
Brendan Francis Abrahams, David Dharma, Paul Stephen Donnelly, Timothy Adam Hudson, Cameron J Kepert, Richard Robson, Peter D Southon, Keith Forrest White
The uptake of inhalation anesthetics by three topologically identical frameworks is described. The 3D network materials, which possess square channels of different dimensions, are formed from the relatively simple combination of Zn(II) centres and dianionic ligands that contain a phenolate and a carboxylate group at opposite ends. All three framework materials are able to adsorb N2O, Xe and isoflurane. Whilst the framework with the widest channels is able to adsorb large quantities of the various guests from the gas phase, the frameworks with the narrower channels have superior binding enthalpies and exhibit higher levels of retention...
April 22, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28422881/comparison-of-effects-of-desflurane-and-sevoflurane-on-postoperative-nausea-vomiting-and-pain-in-patients-receiving-opioid-based-intravenous-patient-controlled-analgesia-after-thyroidectomy-propensity-score-matching-analysis
#14
COMPARATIVE STUDY
Il Jae Yoon, Hyun Kang, Chong Wha Baek, Geun Joo Choi, Yong-Hee Park, Yong Hun Jung, Young Cheol Woo, Sangseok Lee
In this study, we aimed to compare the effect of desflurane and sevoflurane on postoperative nausea and vomiting and pain in patients receiving opioid-based intravenous patient-controlled analgesia (IV-PCA) after thyroidectomy.We reviewed the electronic medical records of 1042 patients administered opioid-based IV-PCA after a thyroidectomy at Chung-Ang University Hospital between January 1, 2010 and June 30, 2016. We classified the patients into 2 groups according to the inhalation anesthetic used for anesthesia: desflurane versus sevoflurane (groups D and S, n = 587 and 455, respectively)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28417829/comparison-of-3-methods-for-preventing-perianesthetic-hypothermia-in-callimicos-callimico-goeldii
#15
Sathya K Chinnadurai James G Johnson Iii And Jennifer N Langan
Perianesthetic hypothermia is one of the most common complications in veterinary anesthesia, especially in small patients with a large body surface area to mass ratio. During anesthesia, body heat can be lost through 4 mechanisms-radiation, convection,conduction, and evaporation-but anesthetists frequently address only one mechanism at a time. Here we sought to evaluate 3 methods of preventing perianesthetic hypothermia in callimicos (Callimico goeldii). In our experience, these smallNHP routinely become hypothermic under even brief inhalant anesthesia...
April 17, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28412755/randomized-clinical-trial-comparing-the-effects-of-sevoflurane-and-propofol-on-carbon-dioxide-embolism-during-pneumoperitoneum-in-laparoscopic-hepatectomy
#16
Yu Hong, Yu Xin, Fei Yue, He Qi, Cai Jun
Laparoscopic hepatectomy carries a high risk of gas embolism due to the extensive hepatic transection plane and large hepatic vena cava. Here, we compared the influence of inhaled and intravenous anesthetics on gas embolism during laparoscopic hepatectomy. Fifty patients undergoing laparoscopic hepatectomy were divided into two groups to receive sevoflurane anesthesia (group S, n = 25) or intravenous propofol anesthesia (group p, n = 25). During the operation, gas emboli were detected by transesophageal echocardiography and graded according to their size...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28400117/phosphatidylinositol-3-kinase-inhibition-induces-vasodilator-effect-of-sevoflurane-via-reduction-of-rho-kinase-activity
#17
Yasunori Miyamoto, Guo-Gang Feng, Shiho Satomi, Katsuya Tanaka, Yoshihiro Fujiwara, Hiroyuki Kinoshita
AIMS: This study was aimed to examine whether a volatile anesthetic sevoflurane in clinical doses reduces vasoconstriction under the inhibition of phosphatidylinositol 3-kinase (PI3K) in the rat and human arteries and whether the intravenous administration of the PI3K inhibitor decreases blood pressure in rats under the sevoflurane inhalation. MATERIALS AND METHODS: Rat arteries (n=5-6) and human omental arteries (n=5-6) were subjected to isometric force recordings and western immunoblotting for Rho kinase, mitogen-activated protein kinase, and protein kinase C...
April 8, 2017: Life Sciences
https://www.readbyqxmd.com/read/28393934/sevoflurane-decreases-self-renewal-capacity-and-causes-c-jun-n-terminal-kinase-mediated-damage-of-rat-fetal-neural-stem-cells
#18
Zeyong Yang, Jingjing Lv, Xingxing Li, Qiong Meng, Qiling Yang, Wei Ma, Yuanhai Li, Zun Ji Ke
Increasing studies have demonstrated that sevoflurane can induce neurotoxicity in the developing brains. JNK normally promotes apoptosis. It was hypothesized that sevoflurane affected the proliferation and differentiation of FNSCs and induced cell apoptosis, which caused the learning and memory deficits via JNK pathway. Sevoflurane at a concentration of 1.2% did not induce damage on the FNSCS. However, concentrations of 2.4% and 4.8% decreased the cell viability, as shown by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, and increased apoptosis, as shown by flow cytometry...
April 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28386342/hydrogen-rich-saline-attenuates-isoflurane-induced-caspase-3-activation-and-cognitive-impairment-via-inhibition-of-isoflurane-induced-oxidative-stress-mitochondrial-dysfunction-and-reduction-in-atp-levels
#19
Cheng Li, Lengchen Hou, Dan Chen, Fuqing Lin, Tao Chang, Mengzhu Li, Lingling Zhang, Xiaoyin Niu, Huiying Wang, Shukun Fu, Junhua Zheng
OBJECTIVES: The inhaled general anesthetic isoflurane has been shown to induce caspase-3 activation in vitro and in vivo. The underlying mechanisms and functional consequences of this activity remain unclear. Isoflurane can induce caspase-3 activation by causing accumulation of reactive oxygen species (ROS), mitochondrial dysfunction, and reduction in adenosine triphosphate (ATP) levels. This study aimed to investigate the protective effect of hydrogen, a novel antioxidant, against isoflurane-induced caspase-3 activation and cognitive impairment...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28363062/intramuscular-epinephrine-results-in-reduced-anesthetic-recovery-time-in-american-alligators-alligator-mississippiensis-undergoing-isoflurane-anesthesia
#20
Bonnie J Gatson, Alexandra Goe, Tiffany D Granone, James F X Wellehan
Inhalants are commonly used to anesthetize reptiles, but volatile anesthetics have been associated with prolonged recovery times. The objective of this study was to determine the effects of intramuscular (IM) epinephrine on anesthetic recovery times following isoflurane anesthesia in a population of subadult American alligators ( Alligator mississippiensis ). In this prospective randomized crossover study, five clinically healthy alligators were anesthetized for 90 min with the use of isoflurane. Alligators were randomly assigned into one of two treatment groups: Group E received IM epinephrine (0...
March 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
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