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61. Alcohol Triggers Re-emergence of Ketamine-Like Experience in A Ketamine Ex-user Full Text available with Trip Pro

Alcohol Triggers Re-emergence of Ketamine-Like Experience in A Ketamine Ex-user 28027112 2017 05 10 2018 11 13 1533-712X 37 1 2017 Feb Journal of clinical psychopharmacology J Clin Psychopharmacol Alcohol Triggers Reemergence of Ketamine-Like Experience in a Ketamine Ex-User. 110-112 10.1097/JCP.0000000000000635 Chang Fong F Department of Psychiatry, Taipei City Psychiatric Center, Taipei City Hospital, Taipei, TaiwanDepartment of Psychiatry, Yale School of Medicine, New Haven, and VA CT (...) United States P50 AA012870 AA NIAAA NIH HHS United States UH2 TR000960 TR NCATS NIH HHS United States Case Reports Letter United States J Clin Psychopharmacol 8109496 0271-0749 0 Central Nervous System Depressants 0 Excitatory Amino Acid Antagonists 0 Receptors, N-Methyl-D-Aspartate 3K9958V90M Ethanol 690G0D6V8H Ketamine IM Adult Central Nervous System Depressants adverse effects Ethanol adverse effects Excitatory Amino Acid Antagonists adverse effects Humans Ketamine adverse effects Male Receptors

2017 Journal of Clinical Psychopharmacology

62. ECT With Ketamine Anesthesia vs High Intensity Ketamine With ECT Rescue for Treatment-Resistant Depression

ECT With Ketamine Anesthesia vs High Intensity Ketamine With ECT Rescue for Treatment-Resistant Depression ECT With Ketamine Anesthesia vs High Intensity Ketamine With ECT Rescue for Treatment-Resistant Depression - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100 (...) ). Please remove one or more studies before adding more. ECT With Ketamine Anesthesia vs High Intensity Ketamine With ECT Rescue for Treatment-Resistant Depression The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. of clinical studies and talk to your health care provider before participating. Read our for details. ClinicalTrials.gov Identifier: NCT03272698

2017 Clinical Trials

63. Ketamine-dexmedetomidine versus ketamine-propofol (ketofol) for procedural sedation in the pediatric population: a systematic review and meta-analysis

Ketamine-dexmedetomidine versus ketamine-propofol (ketofol) for procedural sedation in the pediatric population: a systematic review and meta-analysis Print | PDF PROSPERO This information has been provided by the named contact for this review. CRD has accepted this information in good faith and registered the review in PROSPERO. The registrant confirms that the information supplied for this submission is accurate and complete. CRD bears no responsibility or liability for the content

2019 PROSPERO

64. "THINK Trial: Treatment of Headache With IntraNasal Ketamine: A Randomized Controlled Trial Evaluating the Efficacy of Intranasal Ketamine Versus Standard Therapy in the Management of Primary Headache Syndromes in the Emergency Department"

"THINK Trial: Treatment of Headache With IntraNasal Ketamine: A Randomized Controlled Trial Evaluating the Efficacy of Intranasal Ketamine Versus Standard Therapy in the Management of Primary Headache Syndromes in the Emergency Department" "THINK Trial: Treatment of Headache With IntraNasal Ketamine: A Randomized Controlled Trial Evaluating the Efficacy of Intranasal Ketamine Versus Standard Therapy in the Management of Primary Headache Syndromes in the Emergency Department" - Full Text View (...) - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. "THINK Trial: Treatment of Headache With IntraNasal Ketamine: A Randomized Controlled Trial Evaluating the Efficacy of Intranasal Ketamine Versus Standard Therapy in the Management of Primary

2017 Clinical Trials

65. Ketamine augmentation of electroconvulsive therapy to improve neuropsychological and clinical outcomes in depression (Ketamine-ECT): a multicentre, double-blind, randomised, parallel-group, superiority trial. Full Text available with Trip Pro

Ketamine augmentation of electroconvulsive therapy to improve neuropsychological and clinical outcomes in depression (Ketamine-ECT): a multicentre, double-blind, randomised, parallel-group, superiority trial. The use of electroconvulsive therapy (ECT) is limited by concerns about its cognitive adverse effects. Preliminary evidence suggests that administering the glutamate antagonist ketamine with ECT might alleviate cognitive adverse effects and accelerate symptomatic improvement; we tested (...) randomly assigned (1:1) to ketamine (0·5 mg/kg intravenous bolus) or saline adjunctive to the anaesthetic for the duration of their ECT course. Patients and assessment and ECT treatment teams were masked to treatment allocation, although anaesthetists administering the study medication were not. We analysed the primary outcome, Hopkins Verbal Learning Test-Revised delayed verbal recall (HVLT-R-DR) after four ECT treatments, using a Gaussian repeated measures model in all patients receiving the first

2017 The Lancet. Psychiatry Controlled trial quality: predicted high

66. Adverse Events During a Randomized Trial of Ketamine Versus Co-Administration of Ketamine and Propofol for Procedural Sedation in a Pediatric Emergency Department. (Abstract)

Adverse Events During a Randomized Trial of Ketamine Versus Co-Administration of Ketamine and Propofol for Procedural Sedation in a Pediatric Emergency Department. The co-administration of ketamine and propofol (CoKP) is thought to maximize the beneficial profile of each medication, while minimizing the respective adverse effects of each medication.Our objective was to compare adverse events between ketamine monotherapy (KM) and CoKP for procedural sedation and analgesia (PSA) in a pediatric (...) emergency department (ED).This was a prospective, randomized, single-blinded, controlled trial of KM vs. CoKP in patients between 3 and 21 years of age. The attending physician administered either ketamine 1 mg/kg i.v. or ketamine 0.5 mg/kg and propofol 0.5 mg/kg i.v. The physician could administer up to three additional doses of ketamine (0.5 mg/kg/dose) or ketamine/propofol (0.25 mg/kg/dose of each). Adverse events (e.g., respiratory events, cardiovascular events, unpleasant emergence reactions) were

2017 Journal of Emergency Medicine Controlled trial quality: uncertain

67. A prospective randomized, double-dummy trial comparing intravenous push dose of low dose ketamine to short infusion of low dose ketamine for treatment of moderate to severe pain in the emergency department. (Abstract)

A prospective randomized, double-dummy trial comparing intravenous push dose of low dose ketamine to short infusion of low dose ketamine for treatment of moderate to severe pain in the emergency department. Compare adverse effects and analgesic efficacy of low-dose ketamine for acute pain in the ED administered either by single intravenous push (IVP) or short infusion (SI).Patients 18-65, presenting to ED with acute abdominal, flank, or musculoskeletal pain with initial pain score≥5, were (...) randomized to ketamine 0.3mg/kg by either IVP or SI with placebo double-dummy. Adverse effects were evaluated by Side Effects Rating Scale for Dissociative Anesthetics (SERSDA) and Richmond Agitation-Sedation Scale (RASS) at 5, 15, 30, 60, 90, and 120min post-administration; analgesic efficacy was evaluated by Numerical Rating Scale (NRS).48 patients enrolled in the study. IVP group had higher overall rates of feeling of unreality on SERSDA scale: 92% versus 54% (difference 37.5%; p=0.008; 95% CI 9.3

2017 American Journal of Emergency Medicine Controlled trial quality: uncertain

68. Stress-sensitive antidepressant-like effects of ketamine in the mouse forced swim test. Full Text available with Trip Pro

Stress-sensitive antidepressant-like effects of ketamine in the mouse forced swim test. Major depression is a stress-linked disease with significant morbidity and the anesthetic drug ketamine is of growing interest in the treatment of depression, since in responsive individuals a single dose has rapid (within hours) antidepressant effects that can be sustained for over a week in some instances. This combination of fast action and a therapeutic effect that lasts far beyond the drug's half-life (...) points to a unique mechanism of action. In this reverse translational study, we investigate the degree to which ketamine counteracts stress-related depression-like behavioral responses by determining whether it affects unstressed animals similarly to stressed mice. To test this, male C57BL/6J mice were given a single injection of vehicle (0.9% saline; i.p.), 10 mg/kg ketamine, or 30 mg/kg ketamine, and were tested in the forced swim test (FST) 24 hours and 7 days later, as well as in the open field

2019 PLoS ONE

69. Ketamine disrupts neuromodulatory control of glutamatergic synaptic transmission. Full Text available with Trip Pro

Ketamine disrupts neuromodulatory control of glutamatergic synaptic transmission. A growing body of literature has demonstrated the potential for ketamine in the treatment of major depression. Sub-anesthetic doses produce rapid and sustained changes in depressive behavior, both in patients and rodent models, associated with reorganization of glutamatergic synapses in the prefrontal cortex (PFC). While ketamine is known to regulate N-methyl-D-aspartate (NMDA) -type glutamate receptors (NMDARs (...) ), the full complement of downstream cellular consequences for ketamine administration are not well understood. Here, we combine electrophysiology with 2-photon imaging and glutamate uncaging in acute slices of mouse PFC to further examine how ketamine alters glutamatergic synaptic transmission. We find that four hours after ketamine treatment, glutamatergic synapses themselves are not significantly affected. However, levels of the neuromodulatory Regulator of G-protein Signaling (RGS4) are dramatically

2019 PLoS ONE

70. Randomized clinical trial on the efficacy of intranasal or oral ketamine-midazolam combinations compared to oral midazolam for outpatient pediatric sedation. Full Text available with Trip Pro

Randomized clinical trial on the efficacy of intranasal or oral ketamine-midazolam combinations compared to oral midazolam for outpatient pediatric sedation. The optimal sedative regime that provides the greatest comfort and the lowest risk for procedural sedation in young children remains to be determined. The aim of this randomized, blinded, controlled, parallel-design trial was to evaluate the efficacy of intranasal ketamine and midazolam as the main component of the behavioral guidance (...) approach for preschoolers during dental treatment.Children under seven years of age, with caries and non-cooperative behavior, were randomized into three groups: (KMIN) intranasal ketamine and midazolam; (KMO) oral ketamine and midazolam; or (MO) oral midazolam. The dental sedation appointments were videotaped, and the videos were analyzed using the Ohio State University Behavioral Rating Scale (OSUBRS) to determine the success of the sedation in each group. Intra- and postoperative adverse events were

2019 PLoS ONE Controlled trial quality: predicted high

71. A Systematic Review and Meta-analysis of Ketamine as an Alternative to Opioids for Acute Pain in the Emergency Department Full Text available with Trip Pro

A Systematic Review and Meta-analysis of Ketamine as an Alternative to Opioids for Acute Pain in the Emergency Department Opioids are commonly prescribed in the emergency department (ED) for the treatment of acute pain. Analgesic alternatives are being explored in response to an epidemic of opioid misuse. Low-dose ketamine (LDK) is one opioid alternative for the treatment of acute pain in the ED.This systematic review and meta-analysis sought to quantify whether LDK is an effective and safe (...) opioid alternative for acute pain reduction in adults in the ED setting. (PROSPERO Registration Number CRD42017065303).This was a systematic review of randomized controlled trials comparing intravenous opioids to LDK for relief of acute pain in the ED. Studies where the control group initially received opioids prior to ketamine were excluded. A research librarian designed the electronic search strategy. Changes in visual analog scale or numeric rating scale pain scales were analyzed to determine

2018 EvidenceUpdates

72. Efficacy of Postoperative Analgesia of Local Ketamine Wound Instillation Following Total Thyroidectomy: A Randomized, Double-blind, Controlled Clinical Trial (Abstract)

Efficacy of Postoperative Analgesia of Local Ketamine Wound Instillation Following Total Thyroidectomy: A Randomized, Double-blind, Controlled Clinical Trial Total thyroidectomy is recommended as a line of management of thyroid cancer in many cases. Our aim was to compare postoperative analgesic effect of local ketamine 1 mg/kg instilled in the wound to that of intramuscular (IM) ketamine and placebo after total thyroidectomy.A total of 90 patients aged 18 to 60 years, American Society (...) of Anesthesiologists (ASA) class I to II, with a body weight of 50 to 90 kg, scheduled for total thyroidectomy were enrolled after ethics committee approval in this prospective, randomized, double-blind, controlled study and divided randomly into 3 groups to receive treatment after hemostasis. Group (I) received 1 mg/kg ketamine in a total volume of 10 mL normal saline instilled in the wound. Group (II) received 1 mg/kg of IM ketamine. Group (III) received 10 mL of normal saline instilled in the wound. Total

2018 EvidenceUpdates

73. Subcutaneous ketamine for postoperative pain relief in Rwanda: a randomized clinical trial Full Text available with Trip Pro

Subcutaneous ketamine for postoperative pain relief in Rwanda: a randomized clinical trial Postoperative pain control is often inadequate in low-income countries such as Rwanda, prompting the search for an inexpensive improvement. A randomized controlled trial was conducted to study the use of subcutaneous ketamine for the management of postoperative pain in patients undergoing major surgery in Kigali, Rwanda.Fifty-nine patients undergoing major abdominal, head and neck, plastic (...) , or gynecological surgeries were studied. In addition to standard care, patients received five subcutaneous injections of ketamine 1 mg·kg-1 (ketamine group, n = 30) or normal saline (placebo group, n = 29) during the postoperative period. The first injection was administered in the postanesthesia care unit and then every 12 hr thereafter starting at 20:00 on the day of surgery. Pain was assessed three times per day using an 11-point verbal response scale. Patients were also assessed for side effects, including

2018 EvidenceUpdates

74. Slow Infusion of Low-dose Ketamine Reduces Bothersome Side Effects Compared to Intravenous Push: A Double-blind, Double-dummy, Randomized Controlled Trial Full Text available with Trip Pro

Slow Infusion of Low-dose Ketamine Reduces Bothersome Side Effects Compared to Intravenous Push: A Double-blind, Double-dummy, Randomized Controlled Trial We compared the analgesic efficacy and incidence of side effects when low-dose (0.3 mg/kg) ketamine (LDK) is administered as a slow infusion (SI) over 15 minutes versus an intravenous push (IVP) over 1 minute.This was a prospective, randomized, double-blind, double-dummy, placebo-controlled trial of adult ED patients presenting with moderate (...) to severe pain (numerical rating scale [NRS] score ≥ 5). Patients received 0.3 mg/kg ketamine administered either as a SI or a IVP. Our primary outcome was the proportion of patients experiencing any psychoperceptual side effect over 60 minutes. A secondary outcome was incidence of moderate or greater psychoperceptual side effects. Additional outcomes included reduction in pain NRS scores at 60 minutes and percent maximum summed pain intensity difference (%SPID).Fifty-nine participants completed

2018 EvidenceUpdates

75. Ketamine for Rapid Reduction of Suicidal Thoughts in Major Depression: A Midazolam-Controlled Randomized Clinical Trial Full Text available with Trip Pro

Ketamine for Rapid Reduction of Suicidal Thoughts in Major Depression: A Midazolam-Controlled Randomized Clinical Trial 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.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. The primary outcome measure was SSI score 24 hours after infusion (at day 1).The reduction in SSI score at day 1 was 4.96 points greater for the ketamine group compared with the midazolam group (95% CI=2.33, 7.59; Cohen's d

2018 EvidenceUpdates

76. Ketamine-based anesthesia improves electroconvulsive therapy outcomes: a randomized-controlled study Full Text available with Trip Pro

Ketamine-based anesthesia improves electroconvulsive therapy outcomes: a randomized-controlled study Major depressive disorder (MDD) is a common and debilitating condition that can be challenging to treat. Electroconvulsive therapy (ECT) is currently the therapeutic gold standard for treatment-resistant MDD. We tested our hypothesis that ketamine-based anesthesia for ECT results in superior improvement in treatment-resistant MDD outcomes compared with propofol-based anesthesia.Patients (...) with treatment-resistant MDD were enrolled in a randomized clinical trial with assignment to ketamine- or propofol-based anesthesia arms. Using a modified intention-to-treat analysis, we compared the median number of ECT treatments required to achieve a 50% reduction (primary outcome) and a score ≤ 10 (secondary outcome) on the Montgomery-Asberg depression rating scale (MADRS) between anesthesia groups.The study was terminated as significant results were found after the first planned interim analysis with 12

2018 EvidenceUpdates

77. The influence of subanaesthetic ketamine on regional cerebral blood flow in healthy dogs measured with 99mTc-HMPAO SPECT. Full Text available with Trip Pro

The influence of subanaesthetic ketamine on regional cerebral blood flow in healthy dogs measured with 99mTc-HMPAO SPECT. Subanaesthetic ketamine has recently been proven to be a highly effective and fast acting alternative treatment for several psychiatric disorders. The mechanisms responsible for ketamine's antidepressant effects remain unclear, but a possible explanation could be that ketamine interacts with regional cerebral blood flow (rCBF). Therefore, the effects of two subanaesthetic (...) ketamine doses on rCBF were evaluated. Twelve dogs were randomly assigned to one of the three treatment conditions (condition saline, condition 0.5 mg/kg ketamine or condition 2 mg/kg ketamine) and received in total five saline or ketamine infusions, with one week interval. Single Photon Emission Computed Tomography (SPECT) scans with the radiotracer 99mTc-hexamethylpropylene amine oxime were performed before the start of the infusions (baseline) and 24 hours after the first (single) and last (multiple

2018 PLoS ONE

78. Impact of repeated anesthesia with ketamine and xylazine on the well-being of C57BL/6JRj mice. Full Text available with Trip Pro

Impact of repeated anesthesia with ketamine and xylazine on the well-being of C57BL/6JRj mice. Within the scope of the 3Rs of Russel and Burch, the number of laboratory animals can be reduced by repeated use of an animal. This strategy only becomes relevant, if the total amount of pain, distress or harm the individual animal experiences does not exceed the severity of a single manipulation. For example, when using imaging techniques, an animal can be examined several times during a study (...) , but it has to be anesthetized each time imaging is performed. The severity of anesthesia is thought to be mild according to the Directive 2010/63/EU. However, the Directive does not differentiate between single and repeated anesthesia, although repeated anesthesia may have a greater impact on well-being. Hence, we compared the impact of single and repeated anesthesia (six times at an interval of three to four days) by injection of ketamine and xylazine (KX) on the well-being of adult female and male

2018 PLoS ONE

79. Correction: The Ketamine Analogue Methoxetamine and 3- and 4-Methoxy Analogues of Phencyclidine Are High Affinity and Selective Ligands for the Glutamate NMDA Receptor. Full Text available with Trip Pro

Correction: The Ketamine Analogue Methoxetamine and 3- and 4-Methoxy Analogues of Phencyclidine Are High Affinity and Selective Ligands for the Glutamate NMDA Receptor. [This corrects the article DOI: 10.1371/journal.pone.0059334.].

2018 PLoS ONE

80. Ketamine independently modulated power and phase-coupling of theta oscillations in Sp4 hypomorphic mice. Full Text available with Trip Pro

Ketamine independently modulated power and phase-coupling of theta oscillations in Sp4 hypomorphic mice. Reduced expression of Sp4, the murine homolog of human SP4, a risk gene of multiple psychiatric disorders, led to N-methyl-D-aspartate (NMDA) hypofunction in mice, producing behavioral phenotypes reminiscent of schizophrenia, including hypersensitivity to ketamine. As accumulating evidence on molecular mechanisms and behavioral phenotypes established Sp4 hypomorphism as a promising animal (...) the effects of a subanesthetic dosage of ketamine on theta abnormalities unique to Sp4 hypomorphism. Sp4 hypomorphic mice had markedly elevated theta power localized frontally and parietally, a more pronounced theta phase progression along the neuraxis, and a stronger frontal-parietal theta coupling. Acute subanesthetic ketamine did not affect theta power in wildtype animals but significantly reduced it in Sp4 hypomorphic mice, nearly completely neutralizing their excessive frontal/parietal theta power

2018 PLoS ONE

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