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Ketamine long-term effects

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https://www.readbyqxmd.com/read/27890484/25-years-of-advances-in-definition-classification-and-treatment-of-status-epilepticus
#1
Eugen Trinka, Reetta Kälviäinen
PURPOSE: Status epilepticus (SE) requires not only urgent symptomatic treatment with antiepileptic drugs but also rapid identification and treatment of its cause. This narrative review summarizes the most important advances in classification and treatment of SE. METHOD: Data sources included MEDLINE, EMBASE, ClinicalTrials.gov, and back tracking of references in pertinent studies, reviews, and books. RESULTS: SE is now defined as "a condition resulting either from the failure of the mechanisms responsible for seizure termination or from the initiation of mechanisms, which lead to abnormally, prolonged seizures (after time point t1)...
November 14, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27878523/intravenous-ketamine-for-subacute-treatment-of-refractory-chronic-migraine-a-case-series
#2
Clinton Lauritsen, Santiago Mazuera, Richard B Lipton, Sait Ashina
BACKGROUND: Refractory migraine is a challenging condition with great impact on health related quality of life. Intravenous (IV) ketamine has been previously used to treat various refractory pain conditions. We present a series of patients with refractory migraine treated with intravenous ketamine in the hospital setting. METHODS: Based on retrospective chart review, we identified six patients with refractory migraine admitted from 2010 through 2014 for treatment with intravenous ketamine...
December 2016: Journal of Headache and Pain
https://www.readbyqxmd.com/read/27878517/risks-associated-with-misuse-of-ketamine-as-a-rapid-acting-antidepressant
#3
Weili Zhu, Zengbo Ding, Yinan Zhang, Jie Shi, Kenji Hashimoto, Lin Lu
Major depression is a serious psychiatric disorder and remains a leading cause of disability worldwide. Conventional antidepressants take at least several weeks to achieve a therapeutic response and this lag period has hindered their ability to attain beneficial effects in depressed individuals at high risk of suicide. The non-competitive N-methyl-D-aspartate glutamate receptor antagonist ketamine has been shown to have rapid antidepressant effects in both rodents and humans. The emergence of ketamine as a fast-acting antidepressant provides promising new insights into the development of a rapid treatment response in patients with clinical depression...
November 22, 2016: Neuroscience Bulletin
https://www.readbyqxmd.com/read/27843321/efficacy-of-ketamine-in-the-rapid-treatment-of-major-depressive-disorder-a-meta-analysis-of-randomized-double-blind-placebo-controlled-studies
#4
Yu Han, Jianjun Chen, Dezhi Zou, Peng Zheng, Qi Li, Haiyang Wang, Pengfei Li, Xinyu Zhou, Yuqing Zhang, Yiyun Liu, Peng Xie
BACKGROUND: An increasing number of studies are reporting that ketamine could be treated as a novel antidepressant for major depressive disorder (MDD). Therefore, we performed this meta-analysis to comprehensively and systematically assess the efficacy of ketamine for treating patients with MDD. METHOD: Randomized, double-blind, placebo-controlled studies on ketamine versus placebo for treating MDD were searched up to April 2016 in medical databases (PubMed, CCTR, Web of Science, Embase, CBM-disc, and CNKI)...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27828892/exploring-opioid-sparing-multimodal-analgesia-options-in-trauma-a-nursing-perspective
#5
Denise Sullivan, Mary Lyons, Robert Montgomery, Ann Quinlan-Colwell
Challenges with opioids (e.g., adverse events, misuse and abuse with long-term administration) have led to a renewed emphasis on opioid-sparing multimodal management of trauma pain. To assess the extent to which currently available evidence supports the efficacy and safety of various nonopioid analgesics and techniques to manage trauma pain, a literature search of recently published references was performed. Additional citations were included on the basis of authors' knowledge of the literature. Effective options for opioid-sparing analgesics include oral and intravenous (IV) acetaminophen; nonsteroidal anti-inflammatory drugs available via multiple routes; and anticonvulsants, which are especially effective for neuropathic pain associated with trauma...
November 2016: Journal of Trauma Nursing: the Official Journal of the Society of Trauma Nurses
https://www.readbyqxmd.com/read/27826117/neonatal-inhibition-of-na-k-2cl-cotransporter-prevents-ketamine-induced-spatial-learning-and-memory-impairments
#6
Ryan A Stevens, Brandon D Butler, Saurabh S Kokane, Andrew W Womack, Qing Lin
Prolonged ketamine exposure in neonates at anesthetic doses is known to cause long-term impairments of learning and memory. A current theoretical mechanism explains this phenomenon as being neuro-excitotoxicity mediated by compensatory upregulation of N-methyl-d-aspartate receptors (NMDARs), which then initiates widespread neuroapoptosis. Additionally, the excitatory behavior of GABAergic synaptic transmission mediated by GABAA receptors (GABAARs), occurring during the early neuronal development period, is proposed as contributing to the susceptibility of neonatal neurons to ketamine-induced injury...
November 5, 2016: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/27811446/the-analgesic-effect-of-diclofenac-sodium-administered-via-the-epidural-route-in-an-experimental-visceral-pain-model
#7
O Kilci, T Demir, M Günbey, C Kara, D Bayazit, D Ornek, M Baydar
PURPOSE: The aim of this study was to investigate the characteristics of the analgesic effect of diclofenac sodium injected epidurally in single or repeated doses and whether tolerance develops in long-term use. MATERIALS AND METHODS: A total of 30 rats were included in the study. The rats were anesthetized using intraperitoneal ketamine hydrochloride and an epidural catheter (EC) was inserted at the level of 13th dorsal thoraco-lumbar vertebrae (T13). Eleven rats were excluded from the study...
November 2016: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/27783767/moderate-sedation-helps-improve-future-behavior-in-pediatric-dental-patients-a-prospective-study
#8
Denise Espíndola Antunes, Karolline Alves Viana, Paulo Sucasas Costa, Luciane Rezende Costa
There is little evidence on the long-term effects of pharmacological management in children undergoing dental treatment. This study aimed to assess children's behavior in consecutive dental sessions following oral rehabilitation using different pharmacological regimens for behavioral control. Participants were preschoolers who were previously treated for caries under one of the following: no sedative, oral sedation with midazolam, oral sedation with midazolam/ketamine, or general anesthesia. The children's behavior in the follow-up sessions was assessed using the Ohio State University Behavioral Rating Scale (OSUBRS); higher scores represented less cooperative behavior (range 5-20)...
October 24, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27771371/rem-sleep-disorder-following-general-anesthesia-in-rats
#9
Katarina Lazic, Jelena Petrovic, Jelena Ciric, Aleksandar Kalauzi, Jasna Saponjic
Postoperative sleep disorders, particularly the REM sleep disorder, may have a significant deleterious impact on postoperative outcomes and may contribute to the genesis of certain delayed postoperative complications. We have followed the effect of distinct anesthesia regimens (ketamine/diazepam vs. pentobarbital) over 6days following the induction of a stable anesthetized state in adult male Wistar rats, chronically instrumented for sleep recording. In order to compare the effect of both anesthetics in the physiological controls vs...
January 1, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/27759570/antidepressant-anxiolytic-and-procognitive-effects-of-subacute-and-chronic-ketamine-in-the-chronic-mild-stress-model-of-depression
#10
Mariusz Papp, Piotr Gruca, Magdalena Lason-Tyburkiewicz, Paul Willner
Ketamine is the prototype of a new generation of antidepressant drugs, which is reported in clinical studies to be effective in treatment-resistant patients, with an effect that appears within hours and lasts for a few days. Chronic mild stress (CMS) is a well-established and widely used animal model of depression, in which anhedonia, anxiogenesis and cognitive dysfunction can be observed reliably. Studies using acute or brief ketamine treatment following withdrawal from CMS have replicated the clinical finding of a rapid onset of antidepressant action...
October 18, 2016: Behavioural Pharmacology
https://www.readbyqxmd.com/read/27737513/pharmacologic-interventions-for-treating-phantom-limb-pain
#11
REVIEW
Maria Jenelyn M Alviar, Tom Hale, Monalisa Dungca
BACKGROUND: This is an updated version of the original Cochrane review published in Issue 12, 2011. Phantom limb pain (PLP) is pain that arises in the missing limb after amputation and can be severe, intractable, and disabling. Various medications have been studied in the treatment of phantom pain. There is currently uncertainty in the optimal pharmacologic management of PLP. OBJECTIVES: This review aimed to summarise the evidence of effectiveness of pharmacologic interventions in treating PLP...
October 14, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27693392/transgenerational-impairment-of-hippocampal-akt-mtor-signaling-and-behavioral-deficits-in-the-offspring-of-mice-that-experience-postpartum-depression-like-illness
#12
Ruyan Wu, Hailou Zhang, Wenda Xue, Zhilu Zou, Cai Lu, Baomei Xia, Wei Wang, Gang Chen
Postpartum depression (PPD) has adverse effects on offspring and increases their vulnerability to psychiatric disorders such as depression. Akt-mTOR signaling in the hippocampus is implicated in depression but its role in the behavioral deficits in PPD offspring remains unknown. By using a prepregnancy stress model of PPD in which Balb/c females that experience chronic stress before pregnancy show long-lasting PPD-like behaviors, we tested depression-like behaviors in PPD offspring (PPD-F1) at juvenile and adult ages as well as in the second generation (PPD-F2) produced by cross of male PPD-F1 with naïve females...
February 6, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27622724/long-lasting-behavioral-effects-in-neonatal-mice-with-multiple-exposures-to-ketamine-xylazine-anesthesia
#13
Lianyan Huang, Scott Hayes, Guang Yang
Anesthetic agents are often administered in the neonatal period, a time of rapid brain development and synaptogenesis. Mounting evidence suggests that anesthetics can disrupt neurocognitive development, particularly in cases of multiple or prolonged anesthetic exposure. Previous studies have shown that administering multiple doses of ketamine-xylazine (KX) anesthesia to neonatal mice can induce long-term changes to synaptic plasticity in the cortex, but the effect on neurocognitive function remains unclear...
September 10, 2016: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/27613897/protective-effect-of-nicotine-on-sepsis-induced-oxidative-multi-organ-damage-role-of-neutrophils
#14
Zarife Nigâr Özdemir-Kumral, Dilek Özbeyli, Ahmet Faruk Özdemir, M Buğra Karaaslan, Kübra Kaytaz, Mustafa F Kara, Olgu Enis Tok, Feriha Ercan, Berrak Ç Yeğen
INTRODUCTION: Despite its adverse health consequences, tobacco smoking is associated with lower incidence of several neurodegenerative and inflammatory diseases. The present study is aimed to show the effects of nicotine, major tobacco constituent, on five organs targeted by sepsis. METHODS: Male Wistar albino rats received tap water with (5 mg/kg) or without nicotine for 14 days. Under ketamine anesthesia, sepsis (n=50) was induced by ligation and punction of the cecum, while sham group (n=8) had only laparotomy...
August 3, 2016: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/27520396/ephenidine-a-new-psychoactive-agent-with-ketamine-like-nmda-receptor-antagonist-properties
#15
Heather Kang, Pojeong Park, Zuner A Bortolotto, Simon D Brandt, Tristan Colestock, Jason Wallach, Graham L Collingridge, David Lodge
To avoid legislation based on chemical structure, research chemicals, frequently used for recreational purposes, are continually being synthesized. N-Ethyl-1,2-diphenylethanamine (ephenidine) is a diarylethylamine that has recently become popular with recreational users searching for dissociative hallucinogenic effects. In the present study, the pharmacological basis of its neural actions has been investigated, initially by assessing its profile in central nervous system receptor binding assays and subsequently in targeted electrophysiological studies...
January 2017: Neuropharmacology
https://www.readbyqxmd.com/read/27502046/cerebral-responses-to-local-and-global-auditory-novelty-under-general-anesthesia
#16
Lynn Uhrig, David Janssen, Stanislas Dehaene, Béchir Jarraya
Primate brains can detect a variety of unexpected deviations in auditory sequences. The local-global paradigm dissociates two hierarchical levels of auditory predictive coding by examining the brain responses to first-order (local) and second-order (global) sequence violations. Using the macaque model, we previously demonstrated that, in the awake state, local violations cause focal auditory responses while global violations activate a brain circuit comprising prefrontal, parietal and cingulate cortices. Here we used the same local-global auditory paradigm to clarify the encoding of the hierarchical auditory regularities in anesthetized monkeys and compared their brain responses to those obtained in the awake state as measured with fMRI...
November 1, 2016: NeuroImage
https://www.readbyqxmd.com/read/27467732/ketamine-protects-gamma-oscillations-by-inhibiting-hippocampal-ltd
#17
Lanting Huang, Xiu-Juan Yang, Ying Huang, Eve Y Sun, Mu Sun
NMDA receptors have been widely reported to be involved in the regulation of synaptic plasticity through effects on long-term potentiation (LTP) and long-term depression (LTD). LTP and LTD have been implicated in learning and memory processes. Besides synaptic plasticity, it is known that the phenomenon of gamma oscillations is critical in cognitive functions. Synaptic plasticity has been widely studied, however it is still not clear, to what degree synaptic plasticity regulates the oscillations of neuronal networks...
2016: PloS One
https://www.readbyqxmd.com/read/27398889/prolonged-perioperative-low-dose-ketamine-does-not-improve-short-and-long-term-outcomes-after-pediatric-idiopathic-scoliosis-surgery
#18
Marina Perelló, David Artés, Cristina Pascuets, Elisabeth Esteban, Ana Maria Ey
STUDY DESIGN: Randomized, double-blind, placebo-controlled study, with a six-month follow-up period. OBJECTIVES: To test the hypothesis that a 72-hour dose of subanesthetic ketamine in this surgical procedure reduces postoperative morphine use; To assess if there are fewer adverse effects, if postoperative recovery is faster, if there is less peri-incisional hyperalgesia or if there is lower incidence of persistent postsurgical pain. SUMMARY OF BACKGROUND DATA: Tissue injury and high opioid requirements following posterior spinal fusion surgery produce central sensitization, which can in turn be associated with hyperalgesia and chronic pain...
July 7, 2016: Spine
https://www.readbyqxmd.com/read/27372170/a-comparison-between-the-effects-of-propofol-fentanyl-with-propofol-ketamine-for-sedation-in-patients-undergoing-endoscopic-retrograde-cholangiopancreatography-outside-the-operating-room
#19
Reza Akhondzadeh, Ali Ghomeishi, Sholeh Nesioonpour, Sanaz Nourizade
BACKGROUND: The efficient and secure techniques of anesthesia and sedation have always been needed for. One of these procedures is endoscopic retrograde cholangiopancreatography (ERCP), due to its painfulness and long duration, has high sensitivity. We compare the effects of propofol-fentanyl (PF) with propofol-ketamine (PK) to sedate patients undergoing ERCP. METHODS: In this clinical trial, patients were divided into two groups of 49 people. A group received a pharmaceutical combination of PK, and another group received a pharmaceutical combination of PF...
April 2016: Biomedical Journal
https://www.readbyqxmd.com/read/27334260/post-anesthesia-ampa-receptor-potentiation-prevents-anesthesia-induced-learning-and-synaptic-deficits
#20
Lianyan Huang, Joseph Cichon, Ipe Ninan, Guang Yang
Accumulating evidence has shown that repeated exposure to general anesthesia during critical stages of brain development results in long-lasting behavioral deficits later in life. To date, there has been no effective treatment to mitigate the neurotoxic effects of anesthesia on brain development. By performing calcium imaging in the mouse motor cortex, we show that ketamine anesthesia causes a marked and prolonged reduction in neuronal activity during the period of post-anesthesia recovery. Administration of the AMPAkine drug CX546 [1-(1,4-benzodioxan-6-ylcarbonyl)piperidine] to potentiate AMPA (α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor activity during emergence from anesthesia in mice enhances neuronal activity and prevents long-term motor learning deficits induced by repeated neonatal anesthesia...
June 22, 2016: Science Translational Medicine
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