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https://www.readbyqxmd.com/read/29784078/corticoadrenal-and-cardiorespiratory-responses-to-administration-of-propofol-combined-with-dexmedetomidine-or-ketamine-in-rabbits
#1
Alfredo González-Gil, Rosa Ana Picazo, Paul de Bruyn, Juan Carlos Illera
Anesthetic protocols may influence adrenal function. Effective methods for modulating stress are desirable to minimize secondary effects during the perioperative period. The aim of this study was to evaluate the effects of the administration of propofol with dexmedetomidine or ketamine on corticoadrenal function and heart and respiratory rates. A random treatment-order design was used: each rabbit received all treatments, with at least 14 d between experiments. Rabbits were assigned to 3 treatment groups (10 per group): group 1, 1 mL normal saline solution intravenously; group 2, propofol (3 mg/kg IV) and dexmedetomidine (0...
May 1, 2018: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/29782960/the-acute-and-residual-effects-of-escalating-analgesic-range-doses-of-ketamine-on-driving-performance-a-simulator-study
#2
Amie C Hayley, Maja Green, Luke A Downey, Con K K Stough, Michael Keane, Brook Shiferaw, Panagiota Kostakis, Yahya Shehabi
Ketamine hydrochloride elicits potent psychotomimetic and neurobehavioural effects which make it incompatible with driving; however, the direct effect on driving performance is yet to be assessed. Using an open label, within-subjects protocol, 15 males and 5 females (mean age = 30.8 years) were administered three fixed, stepwise increasing sub-anaesthetic doses of intravenous (IV) ketamine solution [(i) 8 mg/h IV infusion plus 30 mg bolus, (ii) 12 mg/h IV infusion and (iii) 20 mg/h infusion]. Whole blood ketamine and norketamine concentrations were determined at each treatment step and at 2 h post-infusion...
May 18, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29775117/intravenous-low-dose-ketamine-provides-greater-pain-control-compared-to-fentanyl-in-a-civilian-prehospital-trauma-system-a-propensity-matched-analysis
#3
E Stein Bronsky, Catherine Koola, Alessandro Orlando, Diane Redmond, Cecile D'Huyvetter, Heather Sieracki, Allen Tanner, Ray Fowler, Charles Mains, David Bar-Or
OBJECTIVE: A few studies report comparable analgesic efficacy between low-dose ketamine and opioids such as morphine or fentanyl; however, limited research has explored the safety and effectiveness of intravenous low-dose ketamine as a primary analgesic in a civilian prehospital setting. The objective of this study is to compare pain control between low-dose ketamine and fentanyl when administered intravenously (IV) for the indication of severe pain. METHODS: This was a retrospective, observational review of prehospital adult patients (≥18 years) who presented with severe pain (numeric rating scale, 7-10) and were treated solely with either low-dose ketamine IV or fentanyl IV between January 1, 2014 and December 31, 2016...
May 18, 2018: Prehospital Emergency Care
https://www.readbyqxmd.com/read/29742583/adjunct-ketamine-use-in-the-management-of-severe-ethanol-withdrawal
#4
Anthony F Pizon, Michael J Lynch, Neal J Benedict, Joseph H Yanta, Adam Frisch, Nathan B Menke, Greg S Swartzentruber, Andrew M King, Michael G Abesamis, Sandra L Kane-Gill
OBJECTIVES: Ketamine offers a plausible mechanism with favorable kinetics in treatment of severe ethanol withdrawal. The purpose of this study is to determine if a treatment guideline using an adjunctive ketamine infusion improves outcomes in patients suffering from severe ethanol withdrawal. DESIGN: Retrospective observational cohort study. SETTING: Academic tertiary care hospital. PATIENTS: Patients admitted to the ICU and diagnosed with delirium tremens by Diagnostic and Statistical Manual of Mental Disorders V criteria...
May 8, 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29738804/alcohol-aggravates-ketamine-induced-behavioral-morphological-and-neurochemical-alterations-in-adolescent-rats-the-involvement-of-creb-related-pathways
#5
Daiying Zuo, Yumiao Liu, Zi Liu, Jiahui Cui, Xuejiao Zhou, Yang Liu, Zengqiang Li, Yingliang Wu
Currently, an increasing proportion of adolescent ketamine users simultaneously consume alcohol. However, the potential behavioural and neurological alterations induced by such a drug combination and the underlying mechanisms have not been systematically examined. Therefore, in the present study, the behavioural and morphological changes and the underlying mechanisms were studied in adolescent rats after repeated alcohol and/or ketamine treatment. This study provided the first evidence that co-administration of alcohol (2 and 4 g/kg, i...
May 5, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29727073/efficacy-safety-and-durability-of-repeated-ketamine-infusions-for-comorbid-posttraumatic-stress-disorder-and-treatment-resistant-depression
#6
C Sophia Albott, Kelvin O Lim, Miriam K Forbes, Christopher Erbes, Susanna J Tye, John G Grabowski, Paul Thuras, Tegan M Batres-Y-Carr, Joseph Wels, Paulo R Shiroma
OBJECTIVE: The present study examined the efficacy, safety, and durability of repeated ketamine infusions for the treatment of comorbid posttraumatic stress disorder (PTSD) and treatment-resistant depression (TRD) in a sample of veterans. METHODS: Individuals with comorbid DSM-5-defined PTSD and DSM-IV-defined major depressive disorder (N = 15) received 6 intravenous ketamine infusions (0.5 mg/kg) on a Monday-Wednesday-Friday schedule over a 12-day period from May 2015 to June 2016...
May 1, 2018: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/29718262/ketamine-effects-on-eeg-during-therapy-of-treatment-resistant-generalized-anxiety-and-social-anxiety
#7
Shabah Mohammad Shadli, Tame Kawe, Daniel Martin, Neil McNaughton, Shona Neehoff, Paul Glue
Background: Ketamine is swiftly effective in a range of neurotic disorders that are resistant to conventional antidepressant and anxiolytic drugs. The neural basis for its therapeutic action is unknown. Here we report the effects of ketamine on the EEG of patients with treatment-resistant generalized anxiety and social anxiety disorders. Methods: Twelve patients with refractory DSM-IV generalized anxiety disorder and/or social anxiety disorder provided EEG during 10 minutes of relaxation before and 2 hours after receiving double-blind drug administration...
April 24, 2018: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29688787/comparison-of-desflurane-and-propofol-at-equipotent-doses-in-combination-with-a-constant-rate-infusion-of-dexmedetomidine-on-global-and-peripheral-perfusion-and-oxygenation-in-horses
#8
Stephan Neudeck, Sabine B R Kästner, Liza Wittenberg-Voges, Karl Rohn, Klaus Hopster
OBJECTIVE To determine global and peripheral perfusion and oxygenation during anesthesia with equipotent doses of desflurane and propofol combined with a constant rate infusion of dexmedetomidine in horses. ANIMALS 6 warmblood horses. PROCEDURES Horses were premedicated with dexmedetomidine (3.5 μg•kg-1 , IV). Anesthesia was induced with propofol or ketamine and maintained with desflurane or propofol (complete crossover design) combined with a constant rate infusion of dexmedetomidine (7 μg•kg-1 •h-1 )...
May 2018: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/29660027/the-6-hydroxychromanol-derivative-sul-109-ameliorates-renal-injury-after-deep-hypothermia-and-rewarming-in-rats
#9
Pieter C Vogelaar, Maurits Roorda, Edwin L de Vrij, Martin C Houwertjes, Maaike Goris, Hjalmar Bouma, Adrianus C van der Graaf, Guido Krenning, Robert H Henning
Background: Mitochondrial dysfunction plays an important role in kidney damage in various pathologies, including acute and chronic kidney injury and diabetic nephropathy. In addition to the well-studied ischaemia/reperfusion (I/R) injury, hypothermia/rewarming (H/R) also inflicts acute kidney injury. Substituted 6-hydroxychromanols are a novel class of mitochondrial medicines that ameliorate mitochondrial oxidative stress and protect the mitochondrial network. To identify a novel 6-hydroxychromanol that protects mitochondrial structure and function in the kidney during H/R, we screened multiple compounds in vitro and subsequently assessed the efficacy of the 6-hydroxychromanol derivatives SUL-109 and SUL-121 in vivo to protect against kidney injury after H/R in rats...
April 11, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29652275/dexmedetomidine-versus-ketofol-sedation-for-outpatient-diagnostic-transesophageal-echocardiography-a-randomized-controlled-study
#10
S Sruthi, Banashree Mandal, Manoj K Rohit, Goverdhan Datt Puri
Background: Moderate sedation is required for out-patient transesophageal echocardiography (TEE). Our objective was to compare the effect of Ketofol and dexmedetomidine for outpatient procedural sedation in diagnostic TEE with a hypothesis that Ketofol would be as effective as dexmedetomidine. Patients and. Methods: Fifty adult patients of age group 18-60 years with atrial septal defect, rheumatic valvular heart disease undergoing diagnostic TEE in the outpatient echocardiography laboratory were randomized into two groups, group D and group KF...
April 2018: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/29645317/slow-infusion-of-low-hyphen-dose-ketamine-reduces-bothersome-side-effects-compared-to-iv-push-a-double-hyphen-blind-double-dummy-randomized-controlled-trial
#11
Eben J Clattenburg, Christian Hailozian, Daniel Haro, Tina Yoo, Stefan Flores, Derex Louie, Andrew A Herring
STUDY OBJECTIVE: We compared the analgesic efficacy and incidence of side effects when low{\hyphen}dose (0.3 mg{\sol}kg) ketamine (LDK) is administered as a slow infusion (SI) over 15 minutes versus an intravenous push (IVP) over one minute. METHODS: This was a prospective, randomized, double blind, double dummy, placebo{\hyphen}controlled trial of adult ED patients presenting with moderate to severe pain (numerical rating score ≥ 5). Patients received ketamine 0...
April 12, 2018: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/29627201/perioperative-analgesic-effects-of-an-ultrasound-guided-transversus-abdominis-plane-block-with-a-mixture-of-bupivacaine-and-lidocaine-in-cats-undergoing-ovariectomy
#12
Despoina Skouropoulou, Luca Lacitignola, Paola Centonze, Angela Simone, Alberto M Crovace, Francesco Staffieri
OBJECTIVE: To evaluate the perioperative analgesic effects of a transversus abdominis plane (TAP) block with a mixture of lidocaine and bupivacaine administered to cats undergoing ovariectomy. STUDY DESIGN: Controlled, randomized, prospective, blinded clinical study. ANIMALS: A group of 20 healthy cats. METHODS: Robenacoxib (2 mg kg-1 ) was administered subcutaneously 0.5 hour before intramuscular (IM) administration of ketamine (5 mg kg-1 ), methadone (0...
May 2018: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29623221/efficacy-of-dexmedetomidine-versus-ketofol-for-sedation-of-postoperative-mechanically-ventilated-patients-with-obstructive-sleep-apnea
#13
Hatem Elmoutaz Mahmoud, Doaa Abou Elkassim Rashwan
Patients with sleep apnea are prone to postoperative respiratory complications, requiring restriction of sedatives during perioperative care. We performed a prospective randomized study on 24 patients with obstructive sleep apnea (OSA) who underwent elective surgery under general anesthesia. The patients were equally divided into two groups: Group Dex : received dexmedetomidine loading dose 1 mcg/kg IV over 10 min followed by infusion of 0.2-0.7 mcg/kg/hr; Group KFL : received ketofol as an initial bolus dose 500 mcg/kg IV (ketamine/propofol 1 : 1) and maintenance dose of 5-10 mcg/kg/min...
2018: Critical Care Research and Practice
https://www.readbyqxmd.com/read/29619627/new-advances-in-acute-postoperative-pain-management
#14
REVIEW
Sukanya Mitra, Daniel Carlyle, Gopal Kodumudi, Vijay Kodumudi, Nalini Vadivelu
PURPOSE OF REVIEW: Postoperative pain remains one of the most common challenges following inpatient and outpatient surgeries. With our advances in modern medicine, pain following surgical procedures still remains a challenge, though significant accomplishments have been made over the past few decades. This article highlights some of the promising new advances and approaches in postoperative pain management. RECENT FINDINGS: Over the last decade, Enhanced Recovery after Surgery (ERAS) pathways and protocols are becoming the benchmark standards for enhancing postoperative recovery...
April 4, 2018: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/29606730/effect-of-different-analgesic-techniques-on-hemodynamic-variables-recorded-with-an-esophageal-doppler-monitor-during-ovariohysterectomy-in-dogs
#15
Ignacio Sández, María Soto, Daniel Torralbo, Eva Rioja
This study compared the efficacy of intravenous (IV) fentanyl and ketamine with lumbosacral epidural lidocaine in dogs undergoing ovariohysterectomy. Dogs with esophageal Doppler monitoring ( n = 112) were included in this retrospective study. All dogs were premedicated with dexmedetomidine and methadone, induced with IV propofol or alfaxalone and maintained using isoflurane and IV fentanyl, IV ketamine, or epidural lidocaine. Heart rate (HR), mean arterial pressure (MAP), expired fraction of isoflurane (ETIso), stroke distance (SD), minute distance (MD), peak velocity (PV) and mean acceleration (MA) were recorded before and after ligation of the ovarian pedicle (OvP)...
April 2018: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/29561204/safety-and-efficacy-of-maintenance-ketamine-treatment-in-patients-with-treatment-refractory-generalised-anxiety-and-social-anxiety-disorders
#16
Paul Glue, Shona M Neehoff, Natalie J Medlicott, Andrew Gray, Guy Kibby, Neil McNaughton
OBJECTIVE: In this maintenance treatment study, we sought to evaluate the effect on anxiety ratings, safety and tolerability of 3 months of weekly ketamine in 20 patients with treatment-refractory DSM IV generalised anxiety disorder (GAD) and/or social anxiety disorder (SAD), and subsequent assessment of remission post-treatment. METHODS: This was an uncontrolled open-label study in 20 patients who had been responders in an ascending dose ketamine study. The study was undertaken in a university clinic...
March 1, 2018: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/29560077/higher-mallampati-scores-are-not-associated-with-more-adverse-events-during-pediatric-procedural-sedation-and-analgesia
#17
Maya S Iyer, Raymond D Pitetti, Melissa Vitale
Introduction: Procedural sedation and analgesia (PSA) is used by non-anesthesiologists (NAs) outside of the operating room for several types of procedures. Adverse events during pediatric PSA that pose the most risk to patient safety involve airway compromise. Higher Mallampati scores may indirectly indicate children at risk for airway compromise. Medical governing bodies have proposed guidelines for PSA performed by NAs, but these recommendations rarely suggest using Mallampati scores in pre-PSA evaluations...
March 2018: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29540692/author-correction-super-achromatic-monolithic-microprobe-for-ultrahigh-resolution-endoscopic-optical-coherence-tomography-at-800-nm
#18
Wu Yuan, Robert Brown, Wayne Mitzner, Lonny Yarmus, Xingde Li
The original version of this Article contained an error in the third sentence of the 'Animal studies' section of the Methods, which incorrectly read 'The sheep anesthesia was initiated with ketamine (25 mg kg-1 ) and then maintained by continuous intravascular (IV) infusion of propofol (800 mg kg-1  h-1 ) during imaging.' The correct version states '800 µg kg-1  h-1 ' in place of '800 mg kg-1  h-1 '. This has been corrected in both the PDF and HTML versions of the article.
March 14, 2018: Nature Communications
https://www.readbyqxmd.com/read/29530747/use-of-intravenous-acetaminophen-in-postoperative-pain-management-after-partial-and-full-bony-impacted-third-molar-extractions-a-randomized-double-blind-controlled-trial
#19
Isabel Atencio, Max Beushausen, John J Kowalczyk, Andres Flores-Hidalgo, Nora F Fino, Dale A Baur
PURPOSE: Currently, there is a concern at the national level of the overuse of both prescription and nonprescription opioid use. The purpose of this study was to identify whether the use of the intravenous (IV) formulation of acetaminophen (Ofirmev; Mallinckrodt Pharmaceuticals, Staines-upon-Thames, United Kingdom) is an effective tool in the reduction of postoperative pain, with a secondary goal of reduction of postoperative narcotic use. MATERIALS AND METHODS: A total of 72 patients with previously diagnosed either partial bony or complete bony impacted third molars were selected with care to avoid long-acting local anesthetics or dissociative anesthetic agents...
February 20, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29514417/dopaminergic-neuromodulation-of-high-gamma-stimulus-phase-locking-in-gerbil-primary-auditory-cortex-mediated-by-d1-d5-receptors
#20
Matthias Deliano, Michael G K Brunk, Mohamed El-Tabbal, Maria M Zempeltzi, Max F K Happel, Frank W Ohl
Cortical release of the neurotransmitter dopamine has been implied in adapting cortical processing with respect to various functions including coding of stimulus salience, expectancy, error prediction, behavioral relevance and learning. Dopamine agonists have been shown to modulate recurrent cortico-thalamic feedback, and should therefore also affect synchronization and amplitude of thalamo-cortical oscillations. In this study, we have used multitaper spectral and time-frequency analysis of stimulus-evoked and spontaneous current source density patterns in primary auditory cortex of Mongolian gerbils to characterize dopaminergic neuromodulation of the oscillatory structure of current sources and sinks...
March 7, 2018: European Journal of Neuroscience
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