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https://www.readbyqxmd.com/read/29319604/the-european-society-of-regional-anaesthesia-and-pain-therapy-american-society-of-regional-anesthesia-and-pain-medicine-recommendations-on-local-anesthetics-and-adjuvants-dosage-in-pediatric-regional-anesthesia
#1
Santhanam Suresh, Claude Ecoffey, Adrian Bosenberg, Per-Anne Lonnqvist, Gildasio S de Oliveira, Oscar de Leon Casasola, José de Andrés, Giorgio Ivani
BACKGROUND AND OBJECTIVES: Dosage of local anesthetics (LAs) used for regional anesthesia in children is not well determined. In order to evaluate and come to a consensus regarding some of these controversial topics, The European Society of Regional Anaesthesia and Pain Therapy (ESRA) and the American Society of Regional Anesthesia and Pain Medicine (ASRA) developed a Joint Committee Practice Advisory on Local Anesthetics and Adjuvants Dosage in Pediatric Regional Anesthesia. METHODS: Representatives from both ASRA and ESRA composed the joint committee practice advisory...
January 9, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29289652/cellular-mechanisms-of-metabolic-syndrome-related-atrial-decompensation-in-a-rat-model-of-hfpef
#2
Felix Hohendanner, David Bode, Uwe Primessnig, Tim Guthof, Rafael Doerr, Sarah Jeuthe, Sophie Reimers, Kun Zhang, Doris Bach, Paulina Wakula, Burkert M Pieske, Frank R Heinzel
Heart failure (HF) with preserved ejection fraction (HFpEF) is present in about 50% of HF patients. Atrial remodeling is common in HFpEF and associated with increased mortality. We postulate that atrial remodeling is associated with atrial dysfunction in vivo related to alterations in cardiomyocyte Calcium (Ca) signaling and remodeling. We examined atrial function in vivo and Ca transients (CaT) (Fluo4-AM, field stim) in atrial cardiomyocytes of ZSF-1 rats without (Ln; lean hypertensive) and with metabolic syndrome (Ob; obese, hypertensive, diabetic) and HFpEF...
December 28, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29248564/el20-a-potent-antiarrhythmic-compound-selectively-inhibits-calmodulin-deficient-ryanodine-receptor-type-2
#3
Robert C Klipp, Na Li, Qiongling Wang, Tarah A Word, Martha Sibrian-Vazquez, Robert M Strongin, Xander H T Wehrens, Jonathan J Abramson
BACKGROUND: Catecholaminergic polymorphic ventricular tachycardia (CPVT) is an arrhythmogenic disorder caused by mutations in the cardiac ryanodine receptor (RyR2) that increase diastolic Ca2+ leak from the sarcoplasmic reticulum (SR). Calmodulin (CaM) dissociation from RyR2 has been associated with diastolic Ca2+ leak in heart failure. OBJECTIVE: Determine if tetracaine-derivative, EL20, inhibits abnormal Ca2+ release from RyR2 in a CPVT model and the underlying mechanism of inhibition...
December 14, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29236279/the-maxillary-nerve-block-for-in-office-hybrid-balloon-sinus-dilation-procedures-a-preliminary-study
#4
Gary J Nishioka
Transitioning of rhinologic procedures from the operating room to the office setting in selected patients is a rising trend. An effective pain-control, patient-preparation protocol is essential, especially with advanced in-office rhinologic procedures such as hybrid balloon sinus dilation (BSD), in which other procedures such as ethmoidectomy, turbinate reduction, and other procedures are concomitantly performed. A regimen using oral sedation, topical tetracaine gel, topical tetracaine/epinephrine-soaked cottonoid packs, and intranasal local infiltrative anesthesia can vary significantly in effectiveness and be suboptimal at times (as determined by using treated patients as historical controls)...
December 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/29203420/compound-action-potential-inhibition-produced-by-various-antidepressants-in-the-frog-sciatic-nerve
#5
Ryo Hirao, Tsugumi Fujita, Aiko Sakai, Eiichi Kumamoto
Although an inhibition of action potential conduction in nerve fibers possibly contributes to at least a part of antinociception produced by analgesics and the adjuvants, it has not been fully examined yet how the conduction inhibition differs in extent among their drugs. We investigated the effects of various antidepressants used as analgesic adjuvants on compound action potentials (CAPs) recorded from the frog sciatic nerve by using the air-gap method. The results were compared with those of the other adjuvants that were reported previously...
December 1, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29184841/evaluation-of-the-anesthetic-effect-of-nasal-mucosa-with-tetracaine-0-5-on-hemodynamic-changes-and-postoperative-pain-of-septoplasty-a-randomized-controlled-trial
#6
Hossein Madineh, Soroush Amani, Majid Kabiri, Behnam Karimi
The nasal septum repair surgery is the dangerous operations that any stimulation of this area causes a large change in the rhythm of the heartbeat and blood pressure. This study aimed to determine the effects of tetracaine 0.5% on changes in heartbeat and heart rhythm, hemodynamic changes during surgery, intraoperative bleeding, and pain after septoplasty surgery. The irregular double-blind clinical trial registry of clinical trials Iran with the code number (IRCT: 20150526625N8) in the first half of 2013 on 86 patients in Kashani hospital of Shahrekord...
October 2017: Journal of Advanced Pharmaceutical Technology & Research
https://www.readbyqxmd.com/read/29150444/toll-like-receptor-4-induced-ryanodine-receptor-2-oxidation-and-sarcoplasmic-reticulum-ca2-leakage-promote-cardiac-contractile-dysfunction-in-sepsis
#7
Jie Yang, Rui Zhang, Xin Jiang, Jingzhang Lv, Ying Li, Hongyu Ye, Wenjuan Liu, Gang Wang, Cuicui Zhang, Na Zheng, Ming Dong, Yan Wang, Peiya Chen, Kumar Santosh, Yong Jiang, Jie Liu
Studies suggest the potential role of sarcoplasmic reticulum (SR) Ca2+ leak in cardiac contractile dysfunction in sepsis. However, direct supporting evidence is lacking, and the mechanisms underlying this SR leak are poorly understood. Here, we investigated the changes in cardiac Ca2+ handling and contraction in LPS-treated rat cardiomyocytes and a mouse model of polymicrobial sepsis produced by cecal ligation and puncture (CLP). LPS decreased the systolic Ca2+ transient and myocyte contraction, as well as SR Ca2+ content...
November 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29091806/electrochemical-fenton-based-treatment-of-tetracaine-in-synthetic-and-urban-wastewater-using-active-and-non-active-anodes
#8
Carlota Ridruejo, Francesc Centellas, Pere L Cabot, Ignasi Sirés, Enric Brillas
The electrochemical degradation of tetracaine hydrochloride has been studied in urban wastewater. Treatments in simulated matrix with similar ionic composition as well as in 0.050 M Na2SO4 were comparatively performed. The cell contained an air-diffusion cathode for H2O2 electrogeneration and an anode selected among active Pt, IrO2-based and RuO2-based materials and non-active boron-doped diamond (BDD). Electrochemical oxidation with electrogenerated H2O2 (EO-H2O2), electro-Fenton (EF) and photoelectro-Fenton (PEF) were comparatively assessed at pH 3...
October 23, 2017: Water Research
https://www.readbyqxmd.com/read/29069016/topical-cryoanesthesia-for-the-relief-of-pain-caused-by-steroid-injections-used-to-treat-hypertrophic-scars-and-keloids
#9
RANDOMIZED CONTROLLED TRIAL
Xiuxia Wang, Xiaoli Wu, Ke Liu, Lingling Xia, Xunxun Lin, Wei Liu, Zhen Gao
Intralesional steroid injections are the standard treatment for hypertrophic scars and keloids. The procedure is, however, quite painful and is unpopular with patients because of this. Topical application of anesthetic creams, such as Ametop gel (tetracaine) and EMLA cream (lidocaine and prilocaine), has limited efficacy because of poor drug penetration. The onset of the analgesic effect is also slow, which means that the use of topical anesthetics is time-consuming in clinical practice.We hypothesized that a commercially available cryotip could be used to provide fast-acting topical cryoanesthesia that would reduce the pain associated with steroid injections...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28978899/subarachnoid-block-induced-deafferentation-pain-successfully-treated-with-pentazocine
#10
Hiroaki Kishikawa, Zen'ichiro Wajima, Toshiro Shitara, Toru Shimizu, Hitoshi Adachi, Atsuhiro Sakamoto
Deafferentation pain induced by subarachnoid block (SAB) is rare, but it can appear in the form of recurrent phantom lower limb pain, new acute-onset stump pain in amputees, lower limb pain in patients with tabes dorsalis, and neuropathic pain. We have previously reported that thiopental is an effective treatment for deafferentation pain induced by therapeutic SAB applied to treat neuropathic pain of central origin. Here, we report the case of an amputee who developed new stump pain in his lower limb immediately after subarachnoid tetracaine was administered prior to appendectomy...
2017: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/28943117/lack-of-methemoglobin-elevations-after-topical-applications-of-benzocaine-alone-or-benzocaine-plus-tetracaine-to-the-oral-mucosa
#11
Steven Wang, Helen Giannakopoulos, Jamie Lowstetter, Laura Kaye, Catherine Lee, Stacey Secreto, Vanessa Ho, Matthew C Hutcheson, John T Farrar, Ping Wang, Geraldine Doyle, Stephen A Cooper, Elliot V Hersh
PURPOSE: This study evaluated changes in methemoglobin and oxygen saturation concentrations after the administration of recommended doses of 14% benzocaine alone or 14% benzocaine combined with 2% tetracaine. METHODS: American Society of Anesthesiology class 1 and 2 subjects (n = 40) were enrolled in this modified crossover study. Subjects were administered 0.2 mL of 14% benzocaine alone, 0.2 mL of 14% benzocaine plus 2% tetracaine, or 0.4 mL of 14% benzocaine plus 0...
September 21, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28881348/accelerating-topical-anaesthesia-using-microneedles
#12
Lleucu B Davies, Christopher Gateley, Phillip Holland, Siôn A Coulman, James C Birchall
BACKGROUND/AIMS: Topical anaesthetics reduce pain during venous access procedures in children. However, clinical use is hindered by a significant anaesthetic onset time. Restricted diffusion of the topical anaesthetic through the stratum corneum barrier is the principal reason for the delayed onset. Microneedles can painlessly pierce the skin. This study evaluated microneedle pre-treatment of ex vivo human skin as a means to increase the rate of tetracaine permeation, in order to accelerate the onset of anaesthesia...
September 8, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28868303/adjuvants-to-local-anesthetics-current-understanding-and-future-trends
#13
EDITORIAL
Amlan Swain, Deb Sanjay Nag, Seelora Sahu, Devi Prasad Samaddar
Although beneficial in acute and chronic pain management, the use of local anaesthetics is limited by its duration of action and the dose dependent adverse effects on the cardiac and central nervous system. Adjuvants or additives are often used with local anaesthetics for its synergistic effect by prolonging the duration of sensory-motor block and limiting the cumulative dose requirement of local anaesthetics. The armamentarium of local anesthetic adjuvants have evolved over time from classical opioids to a wide array of drugs spanning several groups and varying mechanisms of action...
August 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/28680703/patient-pain-during-intravitreal-injections-under-topical-anesthesia-a-systematic-review
#14
Helio Francisco Shiroma, Augusto Key Karazawa Takaschima, Michel Eid Farah, Ana Luisa Höfling-Lima, Graziela de Luca Canto, Roberto Henrique Benedetti, Eduardo Buchele Rodrigues
BACKGROUND: Intravitreal injection (IVI) is a very common vitreoretinal procedure, and multiple injections are often required per patient. This systematic review was conducted to evaluate the effectiveness of various local anesthetic techniques in reducing pain during injection. METHODS: A systematic review was conducted based on searches of Cochrane, LILACS, PubMed, Scopus, Web of Science, and the gray literature (Google Scholar). The end search date was February 19, 2016, across all databases...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/28661445/thermal-stability-of-phase-separated-domains-in-multicomponent-lipid-membranes-with-local-anesthetics
#15
Ko Sugahara, Naofumi Shimokawa, Masahiro Takagi
The functional mechanisms of local anesthetics (LAs) have not yet been fully explained, despite their importance in modern medicine. Recently, an indirect interaction between channel proteins and LAs was proposed as follows: LAs alter the physical properties of lipid membranes, thus affecting the channel proteins. To examine this hypothesis, we investigated changes in thermal stability in lipid membranes consisting of dioleoylphosphocholine, dipalmitoylphosphocholine, and cholesterol by adding the LAs, lidocaine and tetracaine...
June 29, 2017: Membranes
https://www.readbyqxmd.com/read/28651726/tetracaine-is-not-more-effective-than%C3%A2-benzocaine-for-preventing-discomfort-in-young-infants-undergoing-frenotomy
#16
Romina Brignardello-Petersen
No abstract text is available yet for this article.
July 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28626826/adverse-drug-events-leading-to-emergency-department-visits-at-an-eye-hospital-a-brief-report
#17
Safa Alizadeh, Niayesh Mohebbi, Kheirollah Gholami, Mahmoud Jabbarvand
PURPOSE: To evaluate adverse drug events (ADEs) resulting in emergency department visits in an eye hospital. METHOD: Emergency department visits at Farabi Eye Hospital were assessed for a 7-day period. The patients' eye disorders and drug history were evaluated to detect ADEs. RESULTS: Of 1631 emergency visits, 5 (0.3%, 95% CI: 0.13-0.71%) were drug related. Tetracaine eye drops accounted for 4 (80%, 95% CI: 38-96%) cases with corneal involvement...
June 2017: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/28568606/coupling-of-excitation-to-ca-2-release-is-modulated-by-dysferlin
#18
Valeriy Lukyanenko, Joaquin M Muriel, Robert J Bloch
KEY POINTS: Dysferlin, the protein missing in limb girdle muscular dystrophy 2B and Miyoshi myopathy, concentrates in transverse tubules of skeletal muscle, where it stabilizes voltage-induced Ca(2+) transients against loss after osmotic shock injury (OSI). Local expression of dysferlin in dysferlin-null myofibres increases transient amplitude to control levels and protects them from loss after OSI. Inhibitors of ryanodine receptors (RyR1) and L-type Ca(2+) channels protect voltage-induced Ca(2+) transients from loss; thus both proteins play a role in injury in dysferlin's absence...
August 1, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28521706/fibrinous-anterior-uveitis-and-recurrent-epithelial-erosion-following-topical-tetracaine-abuse
#19
Olga E Makri, Panagiotis Plotas, Foteini Tsapardoni, Ilias Georgalas, Constantinos D Georgakopoulos
A 54-year-old man presented complaining of severe pain and blurred vision in his left eye. Slit-lamp biomicroscopy revealed a large epithelial defect with an underlying prominent ring infiltrate and severe anterior uveitis with fibrinous exudates and hypopyon. Patient admitted abuse of topical tetracaine, which was discontinued and topical treatment with a non-steroidal anti-inflammatory agent, an antibiotic, a cycloplegic agent were instituted while a therapeutic contact lens was applied. Response to treatment was favorable with a rapid resolution of anterior uveitis within days while the epithelial defect fully healed within a month...
May 18, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28483289/an-observational-study-to-determine-whether-routinely-sending-patients-home-with-a-24-hour-supply-of-topical-tetracaine-from-the-emergency-department-for-simple-corneal-abrasion-pain-is-potentially-safe
#20
Neil Waldman, Ben Winrow, Ian Densie, Andrew Gray, Scott McMaster, George Giddings, John Meanley
STUDY OBJECTIVE: To determine if the number of emergency department (ED) rechecks, persistent fluorescein uptake, ophthalmology referrals, or complications would be affected by the prescription of topical tetracaine for pain relief from simple corneal abrasions (SCAs). METHODS: This retrospective cohort study was conducted in an ED where policy change allowed physicians to use topical tetracaine hydrochloride 1% eye drops for 24 hours for pain treatment for patients with corneal abrasions...
May 2, 2017: Annals of Emergency Medicine
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