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Esmolol

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https://www.readbyqxmd.com/read/29332839/magnetic-solid-phase-extraction-based-on-magnetic-multiwalled-carbon-nanotubes-for-the-simultaneous-enantiomeric-analysis-of-five-%C3%AE-blockers-in-the-environmental-samples-by-chiral-liquid-chromatography-coupled-with-tandem-mass-spectrometry
#1
Zhaokun Wang, Xue Zhang, Shenmeng Jiang, Xingjie Guo
In this work, the magnetic multiwalled carbon nanotubes (Mag-MWCNTs) were prepared by self-assembly method and characterized by scanning electron microscopy, X-ray powder diffraction, energy dispersive X-ray and vibrating sample magnetometer. Then, these synthetic Mag-MWCNTs were used as sorbents to extract five β-blockers (atenolol, metoprolol, esmolol, pindolol and arotinolol) by magnetic solid-phase extraction. The target analytes adsorbed on Mag-MWCNTs were eluted and determined on a chiral α-acid glycoprotein column coupled with a triple quadrupole mass spectrometry...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29319439/successful-management-of-minoxidil-toxicosis-in-a-dog
#2
Tyler J M Jordan, Page E Yaxley, Christine A Culler, Anusha Balakrishnan
CASE DESCRIPTION A 2-year-old sexually intact female mixed-breed dog was evaluated at an emergency hospital approximately 5 hours after ingestion of an unknown amount of over-the-counter topical hair growth promoter containing 5% minoxidil foam. Vomiting and signs of lethargy were reported by the owner, and physical examination revealed tachycardia and hypotension. No treatments were performed, and the dog was transferred to a veterinary referral hospital for management of suspected minoxidil toxicosis. CLINICAL FINDINGS On arrival at the referral hospital, the dog was tachycardic (heart rate, 200 to 220 beats/min) and hypotensive (systolic arterial blood pressure, 70 mm Hg)...
January 15, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29284847/evaluation-of-preoperative-flupirtine-in-ambulatory-functional-endoscopic-sinus-surgery-a-prospective-double-blind-randomized-controlled-trial
#3
Anjan Das, Hirak Biswas, Anindya Mukherjee, Sandip Roy Basunia, Subinay Chhaule, Tapobrata Mitra, Partha Sarathi Halder, Subrata Kumar Mandal
Background: Functional endoscopic sinus surgery (FESS) is the mainstay therapeutic management for nasal pathologies. We evaluated flupirtine, a centrally acting analgesic, for producing perfect perioperative conditions in FESS for adults in a day-care setting. Materials and Methods: Sixty-two patients (25-40 years) scheduled for FESS under general anesthesia were randomly divided into Group F (n = 31) receiving preoperative flupirtine (100 mg) and Group C (n = 31) receiving identical-looking placebo capsule per oral 60 min before induction of anesthesia...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29233190/microvascular-effects-of-intravenous-esmolol-in-patients-with-normal-cardiac-function-undergoing-postoperative-atrial-fibrillation-a-prospective-pilot-study-in-cardiothoracic-surgery
#4
William Fornier, Matthias Jacquet-Lagrèze, Thomas Collenot, Priscilla Teixeira, Philippe Portran, Rémi Schweizer, Michel Ovize, Jean-Luc Fellahi
BACKGROUND: Postoperative atrial fibrillation (POAF) is commonplace after cardiothoracic surgery. A rate control strategy using short-acting beta blockers is recommended as a first-line therapy in patients without hemodynamic instability. Microcirculatory effects of POAF and esmolol have not yet been investigated. We hypothesized that POAF without hemodynamic instability would induce microvascular dysfunction which could be reversed by intravenous esmolol. METHODS: Twenty-five cardiothoracic surgical patients with POAF were included in the study...
December 12, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29189539/effect-of-continuous-systemic-administration-of-esmolol-on-intraocular-pressure-during-surgery-in-a-sustained-steep-trendelenburg-position
#5
Jin Joo, Jiyoung Kim, Jaemin Lee
PURPOSE: To investigate the effects of continuous systemic administration of esmolol on intraocular pressure (IOP) during laparoscopic and robotic surgeries for recto-sigmoid cancer in a steep Trendelenburg position. MATERIALS AND METHODS: A total of 50 patients undergoing laparoscopic surgery in a steep Trendelenburg position were included. Patients in the esmolol (E) group received a 0.25 mg/kg IV loading dose of esmolol before anesthesia, followed by an infusion of 15 μg/kg/min throughout the operation...
December 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/29149941/pathophysiology-of-septic-shock
#6
REVIEW
James A Russell, Barret Rush, John Boyd
Fundamental features of septic shock are vasodilation, increased permeability, hypovolemia, and ventricular dysfunction. Vasodilation owing to increased nitric oxide and prostaglandins is treated with vasopressors (norepinephrine first). Increased permeability relates to several pathways (Slit/Robo4, vascular endothelial growth factor, angiopoietin 1 and 2/Tie2 pathway, sphingosine-1-phosphate, and heparin-binding protein), some of which are targets for therapies. Hypovolemia is common and crystalloid is recommended for fluid resuscitation...
January 2018: Critical Care Clinics
https://www.readbyqxmd.com/read/29148995/microcirculation-first-esmolol-a-candidate-for-the-next-term-of-office
#7
Andrea Morelli, Sebastian Rehberg
No abstract text is available yet for this article.
December 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29112591/pharmacokinetics-and-dynamics-of-low-intermediate-and-high-dose-landiolol-and-esmolol-during-long-term-infusion-in-healthy-caucasians
#8
Günther Krumpl, Ivan Ulč, Michaela Trebs, Pavla Kadlecová, Juri Hodisch, Gabriele Maurer, Bernhard Husch
The pharmacokinetics, pharmacodynamics, safety, and tolerability of long-term administration of esmolol and landiolol, a new fast-acting cardioselective β-blocker, were compared for the first time in Caucasian subjects in a prospective clinical trial.Twelve healthy volunteers received landiolol and esmolol by continuous infusion for 24 hr in a randomized crossover study using a dose-escalation regimen. Blood concentrations of drugs and metabolites, heart rate, blood pressure, ECG parameters and tolerability were observed for 30 hrs and compared...
October 31, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29068108/evaluation-of-sustained-tachyarrhythmia-in-children-younger-than-one-year-of-age
#9
Gulhan Tunca Sahin, Erkut Ozturk, Taner Kasar, Alper Guzeltas, Yakup Ergul
BACKGROUND: In this study, we aim to evaluate the results of non-operational sustained tachyarrhythmias in patients younger than 1 year of age in our center. METHODS: Between November 2010 and November 2016, the demographic characteristics, type and localization of the tachyarrhythmia, echocardiographic findings, and medical and/or ablation therapies applied for patients under 1 year of age who had sustained tachyarrhythmias were evaluated. RESULTS: Among 99 patients, 91 had sustained supraventricular tachycardia, and eight had sustained ventricular tachycardia...
October 25, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29049251/esmolol-pretreatment-attenuates-heart-rate-increase-and-parasympathetic-inhibition-during-rapid-increases-in-desflurane-concentration-a-preliminary-randomized-study
#10
RANDOMIZED CONTROLLED TRIAL
Ming-Chang Kao, I-Shiang Tzeng, Hsiao-Lung Chan
BACKGROUND: Rapid increases in desflurane concentration can transiently increase the heart rate (HR). Esmolol possesses a high β1-adrenoceptor selectivity and a short duration of action. This preliminary study aimed at investigating the effects of esmolol on the HR and autonomic modulation during a desflurane-induced HR increase. METHODS: American Society of Anesthesiologists physical status I female subjects, aged 20 to 50 years, who were undergoing minor breast surgery were randomly assigned to 2 groups...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29049110/evidence-for-the-efficacy-of-systemic-opioid-sparing-analgesics-in-pediatric-surgical-populations-a-systematic-review
#11
REVIEW
Alyssa Zhu, Hubert A Benzon, T Anthony Anderson
While a large number of studies has examined the efficacy of opioid-sparing analgesics in adult surgical populations, fewer studies are available to guide postoperative pain treatment in pediatric patients. We systematically reviewed available publications on the use of systemic nonopioid agents for postoperative analgesia in pediatric surgical populations. A comprehensive literature search identified meta-analyses and randomized controlled trials (RCTs) assessing the effects of systemic, nonopioid agents on postoperative narcotic requirements or pain scores in pediatric surgical populations...
November 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29037154/an-inappropriate-pacing-threshold-increase-after-repeated-electrical-storm-in-a-patient-with-implantable-cardioverter-defibrillator
#12
Ye Zhu, Xiang Gu, Chao Xu
BACKGROUND: Implantable cardioverter defibrillators (ICD) are capable of effectively terminating malignant ventricular arrhythmia and are the most effective way to prevent sudden cardiac death. However, some evidences demonstrated that both anti-tachycardia pacing (ATP) and ICD shock can also bring adverse prognosis. CASE PRESENTATION: A 66-year-old Han Chinese man with prior ICD implantation was admitted to our hospital because of frequent ICD shocks. Although intravenous amiodarone and esmolol succinate were administered daily, the patient suffered 155 episodes of VT/VF during 8 weeks after implantation...
October 16, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29028742/intraoperative-esmolol-as-an-adjunct-for-perioperative-opioid-and-postoperative-pain-reduction-a-systematic-review-meta-analysis-and-meta-regression
#13
Amanda M Gelineau, Michael R King, Karim S Ladha, Sara M Burns, Timothy Houle, T Anthony Anderson
BACKGROUND: Esmolol is an ultrashort β-1 receptor antagonist. Recent studies suggest a role for esmolol in pain response modulation. The authors performed a meta-analysis to determine if the intraoperative use of esmolol reduces opioid consumption or pain scores. METHODS: PubMed, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, pubget, and Google Scholar were searched. Studies were included if they were randomized, placebo- or opioid-controlled trials written in English, and performed on patients 18 years of age or older...
October 11, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28991824/the-%C3%AE-blocker-esmolol-restores-the-vascular-waterfall-phenomenon-after-acute-endotoxemia
#14
Wei Du, Dawei Liu, Yun Long, Xiaoting Wang
BACKGROUND: A vascular waterfall occurs when the critical closing pressure is greater than the mean systemic filling pressure. Because the waterfall phenomenon likely exists in the microcirculation, β1-receptor blockers such as esmolol could have some effect on microcirculation and vascular waterfall. OBJECTIVES: To determine whether a vascular waterfall exists during septic shock and to assess the effects of vasopressors and β-blockers on vascular waterfall. DESIGN: Sixteen mongrel dogs were mounted with ultrasonic flow probes to measure renal blood flow...
December 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28988724/antiarrhythmics-in-cardiac-arrest-a-systematic-review-and-meta-analysis
#15
REVIEW
Amelia Chowdhury, Brian Fernandes, Thomas M Melhuish, Leigh D White
INTRODUCTION: It is widely accepted that antiarrhythmics play a role in cardiopulmonary resuscitation (CPR) universally, but the absolute benefit of antiarrhythmic use and the drug of choice in advanced life support remains controversial. AIM: To perform a thorough, in-depth review and analysis of current literature to assess the efficacy of antiarrhythmics in advanced life support. MATERIAL AND METHODS: Two authors systematically searched through multiple bibliographic databases including CINAHL, SCOPUS, PubMed, Web of Science, Medline(Ovid) and the Cochrane Clinical Trials Registry...
August 23, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28958063/efficacy-of-esmolol-cardioplegia-during-hypothermic-ischaemia
#16
Dai Nishina, David J Chambers
OBJECTIVES: Cardioplegic arrest using a polarizing solution has been shown to have beneficial advantages for cardioprotection compared with depolarizing (potassium-based) arrest; most studies, however, have looked at normothermic ischaemia with short infusion intervals (every 10-15 min). This study examines the protective efficacy of an esmolol-based cardioplegia during hypothermic arrest, together with a prolonged infusion interval (30 min) for increased clinical feasibility. METHODS: Isolated Langendorff-perfused hearts were subjected to arrest with St Thomas' Hospital cardioplegia (STH2), or esmolol cardioplegia (single- or multidose infusion at 32°C) for 60-min, 90-min or 120-min global ischaemia at 32°C, and recovery of function (left ventricular developed pressure) measured...
September 2, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28928581/a-comparative-study-of-intravenous-esmolol-labetalol-and-lignocaine-in-low-doses-for-attenuation-of-sympathomimetic-responses-to-laryngoscopy-and-endotracheal-intubation
#17
Ekta Ratnani, Om Prakash Sanjeev, Abhishek Singh, Manoj Tripathi, Hemant Kumar Chourasia
BACKGROUND: Direct layngoscopy and endotracheal intubation is a noxious stimuli and induces sympathomimetic responses. Although well tolerated in healthy subjects, it may impose life threatening arrhythmias, left ventricular failure or rupture of cerebral aneurysm in susceptible patients. Esmolol, Labetalol and Lignocaine attenuate these responses but are associated with side effects of bradycardia, hypotension etc. In lower doses, chances of these side effects are comparatively low. So we designed this prospective clinical trial to assess the efficacy of intravenous esmolol, labetalol and lignocaine in low doses for attenuation of sympathomimetic responses to endotracheal intubation...
July 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28922338/does-the-%C3%AE-receptor-antagonist-esmolol-have-analgesic-effects-a-randomised-placebo-controlled-cross-over-study-on-healthy-volunteers-undergoing-the-cold-pressor-test
#18
Fredrik Ander, Anders Magnuson, Alex de Leon, Rebecca Ahlstrand
BACKGROUND: Esmolol may attenuate the sympathetic response to pain and reduce postoperative opioid consumption. It is not clear whether esmolol has an analgesic effect per se. OBJECTIVES: The aim of this study was to evaluate the analgesic effect of esmolol in the absence of anaesthetics and opioids. We tested the hypothesis that esmolol would reduce the maximum pain intensity perceived during the cold pressor test (CPT) by 2 points on a 0 to 10 numeric pain rating scale (NRS) compared to placebo...
September 15, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28875429/regional-differences-in-cerebral-glucose-metabolism-after-cardiac-arrest-and-resuscitation-in-rats-using-18-f-fdg-positron-emission-tomography-and-autoradiography
#19
Alessandro Putzu, Silvia Valtorta, Giuseppe Di Grigoli, Matthias Haenggi, Sara Belloli, Antonio Malgaroli, Marco Gemma, Giovanni Landoni, Luigi Beretta, Rosa Maria Moresco
BACKGROUND: Cardiac arrest is an important cause of morbidity and mortality. Brain injury severity and prognosis of cardiac arrest patients are related to the cerebral areas affected. To this aim, we evaluated the variability and the distribution of brain glucose metabolism after cardiac arrest and resuscitation in an adult rat model. METHODS: Ten rats underwent 8-min cardiac arrest, induced with a mixture of potassium and esmolol, and resuscitation, performed with chest compressions and epinephrine...
September 5, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28827152/neuropathic-pain-attenuates-ischemia-reperfusion-injury-through-%C3%AE-2-adrenergic-pathway
#20
Shigeaki Kawai, Tokuhiro Yamada, Tadashi Matsuura, Tomoharu Funao, Kiyonobu Nishikawa
AIMS: The relationship between neuropathic pain and myocardial infarction (MI) was uncertain because of some medication or underlying diseases. This study investigated the impact of neuropathic pain on ischemia reperfusion injury using isolated rat hearts and cardiomyocytes. MAIN METHODS: Male Sprague-Dawley rats were assigned to the control and allodynia (AL) groups, with the latter subjected to the fifth lumbar spinal-nerve ligation. First, isolated hearts underwent 25-min ischemia and 90-min reperfusion to assess hemodynamic changes and MI area...
October 15, 2017: Life Sciences
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