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ketamine infusions

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https://www.readbyqxmd.com/read/29339170/sub-anesthetic-doses-of-ketamine-attenuate-nicotine-self-administration-in-rats
#1
Amir H Rezvani, Yousef Tizabi, Susan Slade, Bruk Getachew, Edward D Levin
Smoking cessation strategies are of prime medical importance. Despite availability of various pharmacological agents in combating addiction to nicotine, more effective medications are needed. Based on recent findings, the glutamatergic system in the brain may provide novel targets. Here, we evaluated the effects of acute administration of sub-anesthetic doses of ketamine, an NMDA receptor antagonist, in both male and female Sprague-Dawley rats trained to self-administer nicotine. Animals were injected subcutaneously with 5, 7...
January 12, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29320385/ketamine-use-for-suicidal-ideation-in-the-general-hospital-case-report-and-short-review
#2
Hélène Vulser, Claire Vulser, Marion Rieutord, Amélie Passeron, Didier Lefebvre, Emilie Baup, Anne-Sophie Seigneurie, Isabelle Thauvin, Frédéric Limosin, Cédric Lemogne
Low-dose infusion of ketamine may have rapid antisuicide properties. Such a treatment may therefore be useful in the general hospital to prevent suicide in an environment that cannot be made safe enough. We report on the use of ketamine as an efficient, well-tolerated treatment for persistent suicidal ideation in a patient hospitalized in a general hospital after a severe suicide attempt. Based on data in the literature, we suggest that the benefit-risk ratio for ketamine use in such a context is highly favorable...
January 2018: Journal of Psychiatric Practice
https://www.readbyqxmd.com/read/29315987/compatibility-of-common-iv-drugs-with-6-hydroxyethyl-starch-130-0-42-and-4-gelatin
#3
Sebastian Heiderich, Anna Auf der Springe, Jonas Jürgens, Wolfgang Koppert, Andreas Leffler, Robert Sümpelmann, Nils Dennhardt
BACKGROUND: Acetate-containing colloid infusion solutions are recommended to recover normovolemia during pediatric anesthesia. Until now, no studies investigating the compatibility with common anesthetic drugs were available. AIMS: This in vitro study was conducted to reveal possible incompatibilities between common anesthetic drugs and the acetate-containing colloid infusion solutions 6% hydroxyethyl starch and 4% gelatin with normal saline as control. METHODS: The colloid infusion solutions were mixed 1:1 with 29 common intravenous drugs in concentrations used in daily clinical practice...
January 9, 2018: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29275607/-effect-of-perioperative-multi-day-low-dose-ketamine-infusion-on-prevention-of-postmastectomy-pain-syndrome
#4
Q B Lou, K Nan, F F Xiang, X Z Chen, W S Zhu, X T Zhang, J Li
Objective: To investigate the effects of multi-day low dose ketamine infusion for postmastectomy pain syndrome (PMPS) after breast cancer surgery. Methods: This study was a prospective randomized controlled trial. From June 2015 to May 2016 in Affiliated Yiwu Hospital of Wenzhou Medical University, 66 patients with breast cancer surgery were randomly divided into control group (group C) and ketamine group (group K). Patients in group K were infused with 0.5 mg/kg of ketamine mixed in 250 ml of 0.9% normal saline in 1 h daily for 7 days...
December 12, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29249041/comparison-of-tiva-with-different-combinations-of-ketamine-propofol-mixtures-in-pediatric-patients
#5
Ebru Biricik, Feride Karacaer, Ersel Güleç, Özgür Sürmelioğlu, Murat Ilgınel, Dilek Özcengiz
PURPOSE: Adding ketamine to propofol has been suggested to be useful for sedation and general anesthesia. This study aimed to determine the effect of TIVA with different ratios of ketofol on recovery in children. METHODS: Seventy-five children aged 3-12 years and undergoing adenoidectomy and/or tonsillectomy surgery were randomized into three groups. Ratios of 1:5, 1:6.7 and 1:10 ketamine-propofol mixture (ketofol) were prepared in the same syringe for groups I, II and III, respectively...
December 16, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/29223560/the-relationship-between-intestinal-and-oral-mucosa-microcirculation-in-anaesthetized-horses
#6
Klaus Hopster, Stephan Neudeck, Liza Wittenberg-Voges, Sabine Br Kästner
OBJECTIVE: To compare alteration in intestinal blood flow in anaesthetized horses with changes in oral mucosa blood flow. STUDY DESIGN: Prospective, randomized clinical study. ANIMALS: Eight warmblood horses. METHODS: After induction with guaifenesin and ketamine, anaesthesia was maintained with isoflurane at 1.5 vol% in oxygen. The tissue blood flow was measured using laser Doppler flowmetry at the jejunum, colon, rectal mucosa, oesophageal mucosa and the oral mucosa...
August 18, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29212478/effect-of-butorphanol-midazolam-or-ketamine-on-romifidine-based-sedation-in-horses-during-standing-cheek-tooth-removal
#7
Theresa Maria Müller, Klaus Hopster, Astrid Bienert-Zeit, Karl Rohn, Sabine B R Kästner
BACKGROUND: Standing surgery, especially dental procedures, are commonly performed in horses. This leads to an increasing demand for reliable sedation protocols. Therefore, it was the purpose of this study to investigate the influence of butorphanol, midazolam or ketamine on romifidine based sedation in horses during cheek tooth removal. METHODS: Forty horses presented for tooth extraction were divided in four groups using matched pair randomization. Group R was sedated with romifidine (bolus 0...
December 6, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29203848/bdnf-release-and-signaling-are-required-for-the-antidepressant-actions-of-glyx-13
#8
T Kato, M V Fogaça, S Deyama, X-Y Li, K Fukumoto, R S Duman
Conventional antidepressant medications, which act on monoaminergic systems, display significant limitations, including a time lag of weeks to months and low rates of therapeutic efficacy. GLYX-13 is a novel glutamatergic compound that acts as an N-methyl-d-aspartate (NMDA) modulator with glycine-like partial agonist properties; like the NMDA receptor antagonist ketamine GLYX-13 produces rapid antidepressant actions in depressed patients and in preclinical rodent models. However, the mechanisms underlying the antidepressant actions of GLYX-13 have not been characterized...
December 5, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29202655/ketamine-for-rapid-reduction-of-suicidal-thoughts-in-major-depression-a-midazolam-controlled-randomized-clinical-trial
#9
Michael F Grunebaum, Hanga C Galfalvy, Tse-Hwei Choo, John G Keilp, Vivek K Moitra, Michelle S Parris, Julia E Marver, Ainsley K Burke, Matthew S Milak, M Elizabeth Sublette, Maria A Oquendo, J John Mann
OBJECTIVE: Pharmacotherapy to rapidly relieve suicidal ideation in depression may reduce suicide risk. Rapid reduction in suicidal thoughts after ketamine treatment has mostly been studied in patients with low levels of suicidal ideation. The authors tested the acute effect of adjunctive subanesthetic intravenous ketamine on clinically significant suicidal ideation in patients with major depressive disorder. METHOD: In a randomized clinical trial, adults (N=80) with current major depressive disorder and a score ≥4 on the Scale for Suicidal Ideation (SSI), of whom 54% (N=43) were taking antidepressant medication, were randomly assigned to receive ketamine or midazolam infusion...
December 5, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/29199810/ketamine-as-treatment-for-depression
#10
REVIEW
Tero Taiminen
Ketamine infusions administered intravenously 1 to 3 times per week are the quickest and most effective treatment for depression. Short-course ketamine medication is established treatment both for unipolar depression and depressive episodes of bipolar affective disorder. Ketamine is suitable for initiating the treatment for treatment-resistant depression, alleviation of suicidal tendencies, and treatment of depressive patients suffering from simultaneous pain. The safety of prolonged treatment with ketamine is not known to sufficient degree...
2017: Duodecim; Lääketieteellinen Aikakauskirja
https://www.readbyqxmd.com/read/29193185/ketamine-infusion-for-adjunct-sedation-in-mechanically-ventilated-adults
#11
Lara M Groetzinger, Ryan M Rivosecchi, William Bain, Marshall Bahr, Katherine Chin, Ian Barbash, Bryan J McVerry
BACKGROUND: Many critically ill patients receive ketamine for adjunct sedation despite a paucity of evidence on its usage, dosing, and monitoring in this setting. OBJECTIVE: To describe the dosing and safety considerations of ketamine for adjunct sedation in a population of mechanically ventilated critically ill patients targeting light sedation. METHODS: We conducted a retrospective review of mechanically ventilated patients receiving continuous ketamine infusion between January 2012 and April 2016...
November 29, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/29183321/effects-of-controlled-hypoxemia-or-hypovolemia-on-global-and-intestinal-oxygenation-and-perfusion-in-isoflurane-anesthetized-horses-receiving-an-alpha-2-agonist-infusion
#12
Klaus Hopster, Liza Wittenberg-Voges, Florian Geburek, Charlotte Hopster-Iversen, Sabine B R Kästner
BACKGROUND: Aim of this prospective experimental study was to assess effects of systemic hypoxemia and hypovolemia on global and gastrointestinal oxygenation and perfusion in anesthetized horses. Therefore, we anesthetized twelve systemically healthy warmblood horses using either xylazine or dexmedetomidine for premedication and midazolam and ketamine for induction. Anesthesia was maintained using isoflurane in oxygen with either xylazine or dexmedetomidine and horses were ventilated to normocapnia...
November 28, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29175573/the-cost-effectiveness-of-post-operative-ketamine-in-chiari-decompression
#13
Michael M McDowell, Ahmad Alhourani, Beverly A Pearce-Smith, Anna Mazurkiewicz, Robert M Friedlander
INTRODUCTION: In Chiari I patients, post-operative pain and discomfort frequently slow the transition back to the home setting. OBJECTIVE: We sought to determine the effect of standardized ketamine infusion protocols on hospital length of stay. METHODS: This retrospective cohort study reviewed 100 consecutive adult patients undergoing Chiari I decompression. Fifty-nine patients were placed on a 2-3mg/hr ketamine drip until post-operative day one...
November 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29175493/efficiency-and-safety-of-ketamine-for-pain-relief-after-laparoscopic-cholecystectomy-a-meta-analysis-from-randomized-controlled-trials
#14
Jiang Zhu, Hong Xie, Lingwei Zhang, Liuhui Chang, Peimin Chen
OBJECTIVE: This meta-analysis aims to evaluate the effectiveness of intravenous infusion of ketamine for pain control after laparoscopic cholecystectomy (LC). METHODS: A systematic search was performed in PubMed (1966-2017.08), Medline (1966-2017.08), Embase (1980-2017.08), ScienceDirect (1985-2017.08) and the Cochrane Library. Only randomized controlled trials (RCTs) were included. Meta-analysis was performed using Stata 11.0 software. RESULTS: A total of six RCTs were retrieved involving 294 patients...
November 23, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/29167877/utility-of-imaging-based-biomarkers-for-glutamate-targeted-drug-development-in-psychotic-disorders-a-randomized-clinical-trial
#15
Daniel C Javitt, Cameron S Carter, John H Krystal, Joshua T Kantrowitz, Ragy R Girgis, Lawrence S Kegeles, John D Ragland, Richard J Maddock, Tyler A Lesh, Costin Tanase, Philip R Corlett, Douglas L Rothman, Graeme Mason, Maolin Qiu, James Robinson, William Z Potter, Marlene Carlson, Melanie M Wall, Tse-Hwei Choo, Jack Grinband, Jeffrey A Lieberman
Importance: Despite strong theoretical rationale and preclinical evidence, several glutamate-targeted treatments for schizophrenia have failed in recent pivotal trials, prompting questions as to target validity, compound inadequacy, or lack of target engagement. A key limitation for glutamate-based treatment development is the lack of functional target-engagement biomarkers for translation between preclinical and early-stage clinical studies. We evaluated the utility of 3 potential biomarkers-ketamine-evoked changes in the functional magnetic imaging (fMRI) blood oxygen level-dependent response (pharmacoBOLD), glutamate proton magnetic resonance spectroscopy (1H MRS), and task-based fMRI-for detecting ketamine-related alterations in brain glutamate...
November 22, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/29158577/vgf-function-in-depression-and-antidepressant-efficacy
#16
C Jiang, W-J Lin, M Sadahiro, B Labonté, C Menard, M L Pfau, C A Tamminga, G Turecki, E J Nestler, S J Russo, S R Salton
Brain-derived neurotrophic factor (BDNF) is a critical effector of depression-like behaviors and antidepressant responses. Here, we show that VGF (non-acronymic), which is robustly regulated by BDNF/TrkB signaling, is downregulated in hippocampus (male/female) and upregulated in nucleus accumbens (NAc) (male) in depressed human subjects and in mice subjected to chronic social defeat stress (CSDS). Adeno-associated virus (AAV)-Cre-mediated Vgf ablation in floxed VGF mice, in dorsal hippocampus (dHc) or NAc, led to pro-depressant or antidepressant behaviors, respectively, while dHc- or NAc-AAV-VGF overexpression induced opposite outcomes...
November 21, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29148158/long-term-anesthetic-protocol-in-rats-feasibility-in-electrophysiology-studies-in-visual-prosthesis
#17
Alejandro Barriga-Rivera, Veronica Tatarinoff, Nigel H Lovell, John W Morley, Gregg J Suaning
Electrical stimulation of excitable cells provides therapeutic benefits for a variety of medical conditions, including restoration of partial vision to those blinded via some types of retinal degeneration. To improve visual percepts elicited by the current technology, researchers are conducting acute electrophysiology experiments, mainly in cats. However, the rat can provide a model of a range of retinal diseases and possesses a sufficiently large eye to be used in this field. This article presents a long-term anesthetic protocol to enable electrophysiology experiments to further the development of visual prostheses...
November 17, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/29135531/recurrent-subanesthetic-ketamine-infusions-for-complex-regional-pain-syndrome-leading-to-biliary-dilation-jaundice-and-cholangitis-a-case-report
#18
Nathan A Hewitt, Peter Cox
Complex regional pain syndrome is a chronic pain condition that may be resistant to many treatment modalities. Ketamine infusions have demonstrated some promising results, though their use may be associated with a number of adverse effects limiting their widespread applicability. Hepatotoxicity and cholangiopathy have been described in chronic ketamine abuse, though rarely in therapeutic use. We report the impact of recurrent short subanesthetic ketamine infusions for the treatment of complex regional pain syndrome resulting in biliary dilation, jaundice, and cholangitis...
November 9, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/29132231/the-use-of-desflurane-for-neurosurgical-procedures-in-rhesus-macaque-macaca-mulatta
#19
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/29124992/efficacy-of-ketamine-for-postoperative-pain-following-robotic-thyroidectomy-a-prospective-randomised-study
#20
Jiwon Lee, Hee-Pyoung Park, Mu-Hui Jeong, Je-Do Son, Hyun-Chang Kim
Objective Although robotic thyroidectomy (RoT) is a minimally invasive surgery, percutaneous tunneling causes moderate to severe pain immediately postoperatively. We evaluated the efficacy of ketamine for postoperative pain management in patients following RoT. Methods Sixty-four patients scheduled for RoT were randomly divided into two groups. In the ketamine group (n = 32), ketamine was infused from induction of anaesthesia until the end of the procedure (0.15-mg/kg bolus with continuous infusion at 2 µg/kg/min)...
January 1, 2017: Journal of International Medical Research
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