FORANE (Isoflurane, USP)
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Veterinary Emergency & Anaesthesia Pfizer
AVA ECVA & AVEF Thank all their sponsors for this spring edition PARIS 2007 On VETERINARY EMERGENCY & ANAESTHESIA PFIZER MERIAL FORT DODGE BAYER BOEHRINGER MEDISUR COVETO OPTOMED HALLOWELL SCIL JANSSEN SOGEVAL KRUSSE TECHNIBELT MILA TEM The Organisatiors 7th AVEF European Meeting- 10th March 2007-ROISSY 2 AVA – ECVA Spring Meeting 2007 on Veterinary Emergency & Anesthesia 7 – 10 March 2007, Paris, France AVA PARIS 2007 — Wednesday March 7th RESIDENT DAY RUMINANT ANAESTHESIA Hyatt Regency Hotel, Roissy CDG, France K OTTO, D HOLOPHERNE, G TOUZOT 8.30 REGISTRATIONS 9.00-9.45 Specific anatomo-physiology to consider for ruminant peri-anaesthetic period K OTTO 10.00-10.30 COFFEE BREAK 10.30-11.15 Post-anaesthetic and pain management in ruminants K OTTO 11.30-12.15 Physical restraint and sedation of ruminants D HOLOPHERNE 12.30-1.30 LUNCH 1.30-2.15 Anaesthesia of Lamas & Alpagas G TOUZOT 2.30-3.15 Regional & local anaesthesia for ruminants D HOLOPHERNE 3.30-4.00 COFFEE BREAK 4.00-4.45 Pharmacology and protocols for ruminant anaesthesia G TOUZOT AVA-ECVA PARIS 2007, Veterinary Emergency & Anaesthesia, 7-10th March AVA-ECVA PARIS 2007, Veterinary Emergency & Anaesthesia, 7-10th March AVA – ECVA Spring Meeting 2007 on Veterinary Emergency & Anesthesia 7 – 10 March 2007, Paris, France Specific anatomo-physiology to consider for ruminants peri-anaesthetic period Klaus A. Otto Institut für Versuchstierkunde und Zentrales Tierlaboratorium, Medizinische Hochschule Hannover, D-30623 Hannover, Germany The suborder “ruminantia” includes members of the family “bovidae” such as cattle (bos taurus), sheep (ovis spp) and goats (capra spp). Members of the family “camelidae” (camelus spp, llama spp, vicugna spp) belong to the suborder “tylopodia” and therefore are not true ruminants. -
Anaesthesia and Past Use Of
177 Correspondence were using LSD. It is more popular than other commonly Anaesthesia and past use of used hallucinogens whose quoted incidence of clients are: LSD ketamine 0.1% (super-K/vitamin K.I), psilocybin and psilocin 0.6% (the active alkaloids in the Mexican "magic To the Editor: mushroom"), and 3,4 methylenedioxymethamphetamine We report the case of a 43-yr-old lady who was admitted ~MDMA" 1% (ecstasy). The effects of the concurrent to the Day Surgery Unit for release of her carpal tunnel ingestion of LSD on anaesthesia are well described. 2-4 retinaculum. During the preoperative visit, she reported The long-term effects of the past use of LSD are largely no intercurrent illnesses, drug therapy or allergies. She unknown. We wonder if the hallucinations experienced did say, however, that she was frightened of general anaes- by our patient during anaesthesia were due to her LSD thesia, since she had experienced terrifying dreams during intake many years before. We would be interested to surgery under general anaesthesia on three occasions dur- know if others have had experience anaesthetising patients ing the previous ten years. On further questioning, she who are past users of phencyclidine-derived drugs. admitted that she had used lysergic acid diethylamide (LSD) during the late 1960's, the last occasion being 1968 Geoffrey N. Morris MRCGPFRCA when she had experienced characterstic hallucinations. Patrick T. Magee MSe FRCA She had not experienced hallucinations in the ensuing Anaesthetic Department years, except on the surgical occasions mentioned. Royal United Hospital One of the three previous operations had been per- Combe Park formed at our hospital and the anaesthetic record was Bath BA1 3NG checked. -
Evidence for the Involvement of Spinal Cord 1 Adrenoceptors in Nitrous
Anesthesiology 2002; 97:1458–65 © 2002 American Society of Anesthesiologists, Inc. Lippincott Williams & Wilkins, Inc. Evidence for the Involvement of Spinal Cord ␣ 1 Adrenoceptors in Nitrous Oxide–induced Antinociceptive Effects in Fischer Rats Ryo Orii, M.D., D.M.Sc.,* Yoko Ohashi, M.D.,* Tianzhi Guo, M.D.,† Laura E. Nelson, B.A.,‡ Toshikazu Hashimoto, M.D.,* Mervyn Maze, M.B., Ch.B.,§ Masahiko Fujinaga, M.D.ʈ Background: In a previous study, the authors found that ni- opioid peptide release in the brain stem, leading to the trous oxide (N O) exposure induces c-Fos (an immunohisto- 2 activation of the descending noradrenergic inhibitory chemical marker of neuronal activation) in spinal cord ␥-ami- nobutyric acid–mediated (GABAergic) neurons in Fischer rats. neurons, which results in modulation of the pain–noci- 1 In this study, the authors sought evidence for the involvement ceptive processing in the spinal cord. Available evi- Downloaded from http://pubs.asahq.org/anesthesiology/article-pdf/97/6/1458/337059/0000542-200212000-00018.pdf by guest on 01 October 2021 ␣ of 1 adrenoceptors in the antinociceptive effect of N2O and in dence suggests that at the level of the spinal cord, there activation of GABAergic neurons in the spinal cord. appear to be at least two neuronal systems that are Methods: Adult male Fischer rats were injected intraperitone- involved (fig. 1). In one of the pathways, activation of ally with ␣ adrenoceptor antagonist, ␣ adrenoceptor antago- 1 2 ␣ nist, opioid receptor antagonist, or serotonin receptor antago- the 2 adrenoceptors produces either direct presynaptic nist and, 15 min later, were exposed to either air (control) or inhibition of neurotransmitter release from primary af- 75% N2O. -
5-HT2A and 5-HT2C/2B Receptor Subtypes Modulate
5-HT2A and 5-HT2C/2B Receptor Subtypes Modulate Dopamine Release Induced in Vivo by Amphetamine and Morphine in Both the Rat Nucleus Accumbens and Striatum Grégory Porras, M.S., Vincenzo Di Matteo, Ph.D., Claudia Fracasso, B.S., Guillaume Lucas, Ph.D., Philippe De Deurwaerdère, Ph.D., Silvio Caccia, Ph.D., Ennio Esposito, M.D., Ph.D., and Umberto Spampinato, M.D., Ph.D. In vivo microdialysis and single-cell extracellular neuron firing rate in both the ventral tegmental area and recordings were used to assess the involvement of the substantia nigra pars compacta was unaffected by SR serotonin2A (5-HT2A) and serotonin2C/2B (5-HT2C/2B) 46349B (0.1 mg/kg i.v.) but significantly potentiated by SB receptors in the effects induced by amphetamine and 206553 (0.1 mg/kg i.v.). These results show that 5-HT2A morphine on dopaminergic (DA) activity within the and 5-HT2C receptors regulate specifically the activation of mesoaccumbal and nigrostriatal pathways. The increase in midbrain DA neurons induced by amphetamine and DA release induced by amphetamine (2 mg/kg i.p.) in the morphine, respectively. This differential contribution may nucleus accumbens and striatum was significantly reduced be related to the specific mechanism of action of the drug by the selective 5-HT2A antagonist SR 46349B (0.5 mg/kg considered and to the neuronal circuitry involved in their s.c.), but not affected by the 5-HT2C/2B antagonist SB effect on DA neurons. Furthermore, these results suggest 206553 (5 mg/kg i.p.). In contrast, the enhancement of that 5-HT2C receptors selectively modulate the impulse accumbal and striatal DA output induced by morphine (2.5 flow–dependent release of DA. -
Evaluating the Translational Potential of Progesterone Treatment Following
Wong et al. BMC Neuroscience 2014, 15:131 http://www.biomedcentral.com/1471-2202/15/131 RESEARCH ARTICLE Open Access Evaluating the translational potential of progesterone treatment following transient cerebral ischaemia in male mice Raymond Wong1, Claire L Gibson2*, David A Kendall3 and Philip MW Bath1 Abstract Background: Progesterone is neuroprotective in numerous preclinical CNS injury models including cerebral ischaemia. The aim of this study was two-fold; firstly, we aimed to determine whether progesterone delivery via osmotic mini-pump would confer neuroprotective effects and whether such neuroprotection could be produced in co-morbid animals. Results: Animals underwent transient middle cerebral artery occlusion. At the onset of reperfusion, mice were injected intraperitoneally with progesterone (8 mg/kg in dimethylsulfoxide). Adult and aged C57 Bl/6 mice were dosed additionally with subcutaneous infusion (1.0 μl/h of a 50 mg/ml progesterone solution) via implanted osmotic minipumps. Mice were allowed to survive for up to 7 days post-ischaemia and assessed for general well-being (mass loss and survival), neurological score, foot fault and t-maze performance. Progesterone reduced neurological deficit [F(1,2) = 5.38, P = 0.027] and number of contralateral foot-faults [F(1,2) = 7.36, P = 0.0108] in adult, but not aged animals, following ischaemia. In hypertensive animals, progesterone treatment lowered neurological deficit [F(1,6) = 18.31, P = 0.0001], reduced contralateral/ipsilateral alternation ratio % [F(1,2) = 17.05, P = 0.0006] and time taken to complete trials [F(1,2) = 15.92, P = 0.0009] for t-maze. Conclusion: Post-ischemic progesterone administration via mini-pump delivery is effective in conferring functional improvement in a transient MCAO model in adult mice. -
Neurological Complications of Nitrous Oxide Abuse
Katherine Shoults, MD Case report: Neurological complications of nitrous oxide abuse A patient who presented with limb paresthesia and B12 deficiency was eventually diagnosed with subacute combined degeneration neuropathy secondary to nitrous oxide abuse. Case data ABSTRACT: A 34-year-old female ary to nitrous oxide (“laughing gas”) A 34-year-old female presented with with a history of alcohol and crystal abuse that had affected B12 activa- a 2-week history of progressive bilat- methamphetamine abuse presented tion. The patient was continued on eral limb paresthesia and tenderness, to the emergency department with B12 therapy, neurology follow-up as well as an inability to balance. She limb paresthesia and difficulty walk- was arranged, and addiction coun- had been well previously, although ing. At a primary care visit a week seling services were recommended. she did have a history of alcohol and earlier her progressive neurological Unfortunately, the patient was lost crystal methamphetamine abuse. She compromise had been viewed in the to follow-up after discharge from the had abstained from crystal metham- context of anemia and she was start- hospital. Physicians should be aware phetamine for 5 years and from alco- ed on daily B12 injections. Further that nitrous oxide is easy to acquire hol for 2 months. She was working as a investigations in hospital revealed in the form of commercially available care aid and denied using illegal drugs diminished proprioception, hyperal- cartridges or whipped cream canis- currently, but reported she had been gesia with pinprick and temperature ters called “whippits” and abuse of inhaling nitrous oxide (“laughing tests, a wide-based high-steppage nitrous oxide is increasingly com- gas”) for 6 months, with an escalation gait, elevated levels of B12 and ho- mon. -
Pharmacology – Inhalant Anesthetics
Pharmacology- Inhalant Anesthetics Lyon Lee DVM PhD DACVA Introduction • Maintenance of general anesthesia is primarily carried out using inhalation anesthetics, although intravenous anesthetics may be used for short procedures. • Inhalation anesthetics provide quicker changes of anesthetic depth than injectable anesthetics, and reversal of central nervous depression is more readily achieved, explaining for its popularity in prolonged anesthesia (less risk of overdosing, less accumulation and quicker recovery) (see table 1) Table 1. Comparison of inhalant and injectable anesthetics Inhalant Technique Injectable Technique Expensive Equipment Cheap (needles, syringes) Patent Airway and high O2 Not necessarily Better control of anesthetic depth Once given, suffer the consequences Ease of elimination (ventilation) Only through metabolism & Excretion Pollution No • Commonly administered inhalant anesthetics include volatile liquids such as isoflurane, halothane, sevoflurane and desflurane, and inorganic gas, nitrous oxide (N2O). Except N2O, these volatile anesthetics are chemically ‘halogenated hydrocarbons’ and all are closely related. • Physical characteristics of volatile anesthetics govern their clinical effects and practicality associated with their use. Table 2. Physical characteristics of some volatile anesthetic agents. (MAC is for man) Name partition coefficient. boiling point MAC % blood /gas oil/gas (deg=C) Nitrous oxide 0.47 1.4 -89 105 Cyclopropane 0.55 11.5 -34 9.2 Halothane 2.4 220 50.2 0.75 Methoxyflurane 11.0 950 104.7 0.2 Enflurane 1.9 98 56.5 1.68 Isoflurane 1.4 97 48.5 1.15 Sevoflurane 0.6 53 58.5 2.5 Desflurane 0.42 18.7 25 5.72 Diethyl ether 12 65 34.6 1.92 Chloroform 8 400 61.2 0.77 Trichloroethylene 9 714 86.7 0.23 • The volatile anesthetics are administered as vapors after their evaporization in devices known as vaporizers. -
Problematic Use of Nitrous Oxide by Young Moroccan–Dutch Adults
International Journal of Environmental Research and Public Health Article Problematic Use of Nitrous Oxide by Young Moroccan–Dutch Adults Ton Nabben 1, Jelmer Weijs 2 and Jan van Amsterdam 3,* 1 Urban Governance & Social Innovation, Amsterdam University of Applied Sciences, P.O. Box 2171, 1000 CD Amsterdam, The Netherlands; [email protected] 2 Jellinek, Department High Care Detox, Vlaardingenlaan 5, 1059 GL Amsterdam, The Netherlands; [email protected] 3 Amsterdam University Medical Center, Department of Psychiatry, University of Amsterdam, P.O. Box 22660, 1100 DD Amsterdam, The Netherlands * Correspondence: [email protected] Abstract: The recreational use of nitrous oxide (N2O; laughing gas) has largely expanded in recent years. Although incidental use of nitrous oxide hardly causes any health damage, problematic or heavy use of nitrous oxide can lead to serious adverse effects. Amsterdam care centres noticed that Moroccan–Dutch young adults reported neurological symptoms, including severe paralysis, as a result of problematic nitrous oxide use. In this qualitative exploratory study, thirteen young adult Moroccan–Dutch excessive nitrous oxide users were interviewed. The determinants of problematic nitrous oxide use in this ethnic group are discussed, including their low treatment demand with respect to nitrous oxide abuse related medical–psychological problems. Motives for using nitrous oxide are to relieve boredom, to seek out relaxation with friends and to suppress psychosocial stress and negative thoughts. Other motives are depression, discrimination and conflict with friends Citation: Nabben, T.; Weijs, J.; van or parents. The taboo culture surrounding substance use—mistrust, shame and macho culture— Amsterdam, J. Problematic Use of frustrates timely medical/psychological treatment of Moroccan–Dutch problematic nitrous oxide Nitrous Oxide by Young users. -
Veterinary Anesthetic and Analgesic Formulary 3Rd Edition, Version G
Veterinary Anesthetic and Analgesic Formulary 3rd Edition, Version G I. Introduction and Use of the UC‐Denver Veterinary Formulary II. Anesthetic and Analgesic Considerations III. Species Specific Veterinary Formulary 1. Mouse 2. Rat 3. Neonatal Rodent 4. Guinea Pig 5. Chinchilla 6. Gerbil 7. Rabbit 8. Dog 9. Pig 10. Sheep 11. Non‐Pharmaceutical Grade Anesthetics IV. References I. Introduction and Use of the UC‐Denver Formulary Basic Definitions: Anesthesia: central nervous system depression that provides amnesia, unconsciousness and immobility in response to a painful stimulation. Drugs that produce anesthesia may or may not provide analgesia (1, 2). Analgesia: The absence of pain in response to stimulation that would normally be painful. An analgesic drug can provide analgesia by acting at the level of the central nervous system or at the site of inflammation to diminish or block pain signals (1, 2). Sedation: A state of mental calmness, decreased response to environmental stimuli, and muscle relaxation. This state is characterized by suppression of spontaneous movement with maintenance of spinal reflexes (1). Animal anesthesia and analgesia are crucial components of an animal use protocol. This document is provided to aid in the design of an anesthetic and analgesic plan to prevent animal pain whenever possible. However, this document should not be perceived to replace consultation with the university’s veterinary staff. As required by law, the veterinary staff should be consulted to assist in the planning of procedures where anesthetics and analgesics will be used to avoid or minimize discomfort, distress and pain in animals (3, 4). Prior to administration, all use of anesthetics and analgesic are to be approved by the Institutional Animal Care and Use Committee (IACUC). -
5-HT2A Receptor Agonist-Induced Hyperthermia Is Induced Via Vasoconstriction By
Supplemental material to this article can be found at: http://jpet.aspetjournals.org/content/suppl/2018/09/11/jpet.118.250217.DC1 1521-0103/367/2/356–362$35.00 https://doi.org/10.1124/jpet.118.250217 THE JOURNAL OF PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS J Pharmacol Exp Ther 367:356–362, November 2018 Copyright ª 2018 by The American Society for Pharmacology and Experimental Therapeutics 5-HT2A Receptor Agonist-Induced Hyperthermia Is Induced via Vasoconstriction by Peripheral 5-HT2A Receptors and Brown Adipose Tissue Thermogenesis by Peripheral Serotonin Loss at a High Ambient Temperature s Mami Nakamura, Kaori Shintani-Ishida, and Hiroshi Ikegaya Department of Forensic Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan Received April 26, 2018; accepted September 6, 2018 Downloaded from ABSTRACT Recreational drugs such as 3,4-methylenedioxymethamphet- destruction of central noradrenaline or serotonin neurons, amine and cocaine induce hyperthermia, which is affected by peripheral 5-HT2A receptors were considered contributors to ambient temperature. 2-(4-Bromo-2,5-dimethoxyphenyl)-N-(2- the development of hyperthermia at a high ambient temperature, methoxybenzyl)ethanamine (25B-NBOMe), a selective agonist of independently from central neurons. The temperature of brown jpet.aspetjournals.org 5-HT2A receptor used as a recreational drug, reportedly induces adipose tissue (BAT) increased 60–120 minutes postadministra- hyperthermia. This study aimed to verify whether 25B-NBOMe tion of 25B-NBOMe at 29°C, indicating thermogenesis. Previous induces ambient temperature-dependent hyperthermia and to studies have reported that peripheral serotonin contributes to clarify its mechanism. Eight-week-old male Sprague-Dawley rats the inhibition of BAT thermogenesis. -
Federal Register/Vol. 71, No. 34/Tuesday, February 21, 2006
Federal Register / Vol. 71, No. 34 / Tuesday, February 21, 2006 / Notices 8859 DEPARTMENT OF HEALTH AND DEPARTMENT OF HEALTH AND of the Public Health Service Act to HUMAN SERVICES HUMAN SERVICES conduct directly or by grants or contracts, research, experiments, and Office of the National Coordinator; Office of the National Coordinator; demonstrations relating to occupational American Health Information American Health Information safety and health and to mine health. Community Chronic Care Workgroup Community Consumer Empowerment The BSC shall provide guidance to the Meeting Workgroup Meeting Director, NIOSH on research and prevention programs. Specifically, the ACTION: Announcement of meeting. ACTION: Announcement of meeting. board shall provide guidance on the institute’s research activities related to SUMMARY: SUMMARY: This notice announces the This notice announces the developing and evaluating hypotheses, third meeting of the American Health third meeting of the American Health Information Community Consumer systematically documenting findings Information Community Chronic Care and disseminating results. The board Workgroup in accordance with the Empowerment Workgroup in accordance with the Federal Advisory shall evaluate the degree to which the Federal Advisory Committee Act (Pub. activities of NIOSH: (1) Conform to L. 92–463, 5 U.S.C., App.) Committee Act (Pub. L. 92–463, 5 U.S.C., App.) appropriate scientific standards, (2) DATES: March 22, 2006 from 1 p.m. to address current, relevant needs, and (3) DATES: March 20, 2006 from 1 p.m. to 5 p.m. produce intended results. 5 p.m. ADDRESSES: Hubert H. Humphrey Matters to be Discussed: Agenda items ADDRESSES: Hubert H. Humphrey Building (200 Independence Ave., SW., include a report from the Director, Building (200 Independence Ave., SW., Washington, DC 20201), Conference NIOSH; progress report by BSC working Washington, DC 20201), Conference Room 705A. -
Newborn Anaesthesia: Pharmacological Considerations D
$38 REFRESHER COURSE OUTLINE Newborn anaesthesia: pharmacological considerations D. Ryan Cook MD Inhalation anaesthetics Several investigators have studied the age-related For the inhalation anaesthetics there are age-related cardiovascular effects of the potent inhalation differences in uptake and distribution, in anaes- anaesthetics at known multiples of MAC. At thetic requirements as reflected by differences in end-tidal concentrations of halothane bracketing MAC, in the effects on the four determinants of MAC, Lerman er al. 2 noted no difference in the cardiac output (preload, afterload, heart rate and incidence of hypotension or bradycardia in neonates contractility), and in the sensitivity of protective and in infants one to six months of age. Likewise, cardiovascular reflexes (e.g., baroreceptor reflex). we 3 have noted no age-related differences in the These differences limit the margin of safety of the determinants of cardiac output in developing piglets potent agents in infants. 1-20 days during either halothane or isoflurane Alveolar uptake of inhalation anaesthetics and anaesthesia. Halothane produced hypotension by a hence whole-body uptake is more rapid in infants reduction in contractility and heart rate; in much than in adults. J Lung washout is more rapid in older animals halothane also decreases peripheral infants than in adults because of the larger ratio vascular resistance. In piglets although blood pres- between alveolar minute ventilation and lung sure was equally depressed with isoflurane and volume (FRC) (3.5:1 in the infant vs. 1.3:1 in the halothane, cardiac output was better preserved adult). Increased brain size (ml.kg-J), limited during isoflurane anaesthesia.