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Neuromuscular blockers

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https://www.readbyqxmd.com/read/28212216/in-response-effective-doses-of-neuromuscular-blockers-during-electroconvulsive-therapy-and-the-effect-of-ect-parameters
#1
Hooman Mirzakhani, Matthias Eikermann, Edward Bittner, Ala Nozari
No abstract text is available yet for this article.
February 16, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28210905/hypermagnesemia-disturbances-in-rats-no-related-pentadecapeptide-bpc-157-abrogates-l-name-and-l-arginine-worsen
#2
Maria Medvidovic-Grubisic, Vasilije Stambolija, Danijela Kolenc, Jadranka Katancic, Tamara Murselovic, Ivna Plestina-Borjan, Sanja Strbe, Domagoj Drmic, Ivan Barisic, Aleksandra Sindic, Sven Seiwerth, Predrag Sikiric
AIM: Stable gastric pentadecapeptide BPC 157, administered before a high-dose magnesium injection in rats, might be a useful peptide therapy against magnesium toxicity and the magnesium-induced effect on cell depolarization. Moreover, this might be an NO-system-related effect. Previously, BPC 157 counteracts paralysis, arrhythmias and hyperkalaemia, extreme muscle weakness; parasympathetic and neuromuscular blockade; injured muscle healing and interacts with the NOS-blocker and NOS-substrate effects...
February 16, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28153530/24s-hydroxycholesterol-enhances-synaptic-vesicle-cycling-in-the-mouse-neuromuscular-junction-implication-of-glutamate-nmda-receptors-and-nitric-oxide
#3
M R Kasimov, M R Fatkhrakhmanova, K A Mukhutdinova, A M Petrov
24S-hydroxycholesterol (24S-HC) is a brain-derived product of lipid metabolism present in the systemic circulation, where its level can change significantly in response to physiological and pathophysiological conditions. Here, using electrophysiological and optical approaches, we have found a high sensitivity to 24S-HC of the synaptic vesicle cycle at the mouse neuromuscular junctions. Treatment with 24S-HC increased the end plate potential amplitude (EPP) in response to a single stimulus and attenuated the EPP amplitude rundown during high frequency (HF) activity but had no influence on miniature EPP amplitude or frequency...
January 31, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28116830/enterococcus-faecium-strain-r30-increases-red-blood-cell-velocity-and-prevents-capillary-regression-in-the-soleus-of-hindlimb-unloaded-rats-via-the-enos-vegf-pathway
#4
Yusuke Hirayama, Ryosuke Nakanishi, Airo Tategaki, Noriaki Maeshige, Hiroyo Kondo, Akihiko Ishihara, Roland R Roy, Hidemi Fujino
OBJECTIVE: A chronic decrease in neuromuscular activity results in atrophy and capillary regression in skeletal muscles. The purposes of the present study were to determine the effects of enterococcus faecium strain R30 (R30) administration on 1) the hemodynamics of the rat soleus muscle and 2) the capillary regression normally associated with hindlimb unloading (HU). METHODS: Experiment 1: the velocity of red blood cells (VRBC ) was measured for up to one hour after administration of R30 with or without the β-blocker propranolol...
January 24, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28077717/complexin-mutants-reveal-partial-segregation-between-recycling-pathways-that-drive-evoked-and-spontaneous-neurotransmission
#5
Nadezhda Sabeva, Richard W Cho, Alexander Vasin, Agustin Gonzalez, J Troy Littleton, Maria Bykhovskaia
: Synaptic vesicles fuse at morphological specializations in the presynaptic terminal termed active zones (AZs). Vesicle fusion can occur spontaneously or in response to an action potential. Following fusion, vesicles are retrieved and recycled within nerve terminals. It is still unclear whether vesicles that fuse spontaneously or following evoked release share similar recycling mechanisms. Genetic deletion of the SNARE-binding protein complexin dramatically increases spontaneous fusion, with the protein serving as the synaptic vesicle fusion clamp at Drosophila synapses...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28057945/ismp-medication-error-report-analysis-aggrastat-argatroban-mix-ups-don-t-expect-radiofrequency-identification-stock-systems-to-be-perfect-paralyzed-by-mistakes-reassess-the-safety-of-neuromuscular-blockers-in-your-facility
#6
Michael R Cohen, Judy L Smetzer
These medication errors have occurred in health care facilities at least once. They will happen again-perhaps where you work. Through education and alertness of personnel and procedural safeguards, they can be avoided. You should consider publishing accounts of errors in your newsletters and/or presenting them at your inservice training programs. Your assistance is required to continue this feature. The reports described here were received through the Institute for Safe Medication Practices (ISMP) Medication Errors Reporting Program...
December 2016: Hospital Pharmacy
https://www.readbyqxmd.com/read/28013329/effects-of-neuromuscular-blockers-on-transpulmonary-pressures-in-moderate-to-severe-acute-respiratory-distress-syndrome
#7
Christophe Guervilly, Magali Bisbal, Jean Marie Forel, Malika Mechati, Samuel Lehingue, Jeremy Bourenne, Gilles Perrin, Romain Rambaud, Melanie Adda, Sami Hraiech, Elisa Marchi, Antoine Roch, Marc Gainnier, Laurent Papazian
PURPOSE: To investigate whether neuromuscular blocking agents (NMBA) exert beneficial effects in acute respiratory distress syndrome (ARDS) by reason of their action on respiratory mechanics, particularly transpulmonary pressures (P L). METHODS: A prospective randomised controlled study in patients with moderate to severe ARDS within 48 h of the onset of ARDS. All patients were monitored by means of an oesophageal catheter and followed up for 48 h. Moderate ARDS patients were randomised into two groups according to whether they were given a 48-h continuous infusion of cisatracurium besylate or not (control group)...
December 24, 2016: Intensive Care Medicine
https://www.readbyqxmd.com/read/28012426/perceived-safety-and-efficacy-of-neuromuscular-blockers-for-acute-respiratory-distress-syndrome-among-medical-intensive-care-unit-practitioners-a-multicenter-survey
#8
Heather Torbic, Seth R Bauer, Heather A Personett, Amy L Dzierba, Joanna L Stollings, Lindsay P Ryder, Craig E Daniels, Sean M Caples, Erin N Frazee
PURPOSE: Neuromuscular blocking agents (NMBAs) are frequently used in patients with acute respiratory distress syndrome (ARDS). The purpose of this survey is to describe providers' knowledge and perceived efficacy and safety of NMBAs in patients with ARDS. MATERIALS AND METHODS: We performed a prospective, multicenter survey of medical intensive care unit intensivists, fellows, nurse practitioners (NPs), physician's assistants (PAs), and pharmacists at 5 tertiary care centers between July 2012 and May 2013...
December 7, 2016: Journal of Critical Care
https://www.readbyqxmd.com/read/28011884/pharmacogenetics-and-pathophysiology-of-cacna1s-mutations-in-malignant-hyperthermia
#9
Teresa Ann Beam, Emily F Loudermilk, David F Kisor
A review of the pharmacogenetics (PGt) and pathophysiology of calcium voltage-gated channel subunit alpha1 S (CACNA1S) mutations in malignant hyperthermia susceptibility type 5 (MHS5; MIM #60188) is presented. Malignant hyperthermia (MH) is a life-threatening hypermetabolic state of skeletal muscle usually induced by volatile, halogenated anesthetics and/or the depolarizing neuromuscular blocker succinylcholine. In addition to ryanodine receptor 1 (RYR1) mutations, several CACNA1S mutations are known to be risk factors for increased susceptibility to MH (MHS)...
December 23, 2016: Physiological Genomics
https://www.readbyqxmd.com/read/28008669/r-type-ca-2-channels-couple-to-inhibitory-neurotransmission-to-the-longitudinal-muscle-in-the-guinea-pig-ileum
#10
Eileen S Rodriguez-Tapia, Vinogran Naidoo, Matthew DeVries, Alberto Perez-Medina, James J Galligan
What is the central question of this study? Subtypes of enteric neurons are coded by the neurotransmitters they synthesize, but it is not known whether enteric neuron subtypes might also be coded by other proteins, including calcium channel subtypes controlling neurotransmitter release. What is the main finding and its importance? Our data indicate that guinea-pig ileum myenteric neuron subtypes may be coded by calcium channel subtypes. We found that R-type calcium channels are expressed by inhibitory but not excitatory longitudinal muscle motoneurons...
December 23, 2016: Experimental Physiology
https://www.readbyqxmd.com/read/27913592/complexin-mutants-reveal-partial-segregation-between-recycling-pathways-that-drive-evoked-and-spontaneous-neurotransmission
#11
Nadezhda Sabeva, Richard W Cho, Alexander Vasin, Agustin Gonzalez, J Troy Littleton, Maria Bykhovskaia
: Synaptic vesicles fuse at morphological specializations in the presynaptic terminal termed active zones (AZs). Vesicle fusion can occur spontaneously or in response to an action potential. Following fusion, vesicles are retrieved and recycled within nerve terminals. It is still unclear whether vesicles that fuse spontaneously or following evoked release share similar recycling mechanisms. Genetic deletion of the SNARE-binding protein complexin dramatically increases spontaneous fusion, with the protein serving as the synaptic vesicle fusion clamp at Drosophila synapses...
December 2, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27908944/use-of-neuromuscular-blockers-during-therapeutic-hypothermia-after-cardiac-arrest-a-nursing-protocol
#12
Coraline Boulila, Samia Ben Abdallah, Aude Marincamp, Vincent Coic, Romuald Lauverjat, Nicole Ericher, Wulfran Bougouin, Jean-Paul Mira, Alain Cariou, Guillaume Geri
BACKGROUND: Neuromuscular blockers used to prevent shivering during therapeutic hypothermia in comatose patients after out-of-hospital cardiac arrest are associated with adverse events. OBJECTIVE: To assess the influence of a nurse-implemented protocol on use of neuromuscular blockers in patients treated with 24-hour therapeutic hypothermia after out-of-hospital cardiac arrest. METHODS: A before and after study was done in a 24-bed cardiac arrest center...
December 2016: Critical Care Nurse
https://www.readbyqxmd.com/read/27871555/anesthetic-implications-for-patients-with-segawa-syndrome
#13
Kathryn E Howze, Nicholas D Will, Bryan T Klassen, Juraj Sprung, Toby N Weingarten
STUDY OBJECTIVE: To characterize the perioperative course of patients with Segawa syndrome undergoing anesthetic management. DESIGN: Retrospective observational case study. SETTING: Large tertiary medical center. PATIENTS: Patients with Segawa syndrome who underwent procedures requiring anesthetic management at our institution from January 1, 2004, through July 31, 2015. MEASUREMENTS: The health records of patients with Segawa syndrome...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27863874/successful-autologous-haematopoietic-stem-cell-transplantation-for-refractory-myasthenia-gravis-a-case-report
#14
Irene Håkansson, Anna Sandstedt, Fredrik Lundin, Håkan Askmark, Ritva Pirskanen, Kristina Carlson, Fredrik Piehl, Hans Hägglund
Myasthenia gravis (MG) is an autoimmune disease, with immune reactivity against the post-synaptic endplate of the neuromuscular junction. Apart from symptomatic treatment with choline esterase blockers, many patients also require immunomodulatory treatment. Despite existing treatment options, some patients are treatment refractory. We describe a patient with severe MG refractory to corticosteroids, four oral immunosuppressants, cyclophosphamide, rituximab and bortezomib who was treated with autologous haematopoietic stem cell transplantation...
September 28, 2016: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/27816131/anesthesia-patients-with-concomitant-cardiac-and-hepatic-dysfunction
#15
REVIEW
Julianne Ahdout, Michael Nurok
Anesthesia and surgery in patients with hepatic and cardiac dysfunction poses a challenge for anesthesiologists. It is imperative to optimize these patients perioperatively. Cirrhosis is associated with a wide range of cardiovascular abnormalities. Cirrhotic cardiomyopathy is characterized by blunted contractile responsiveness or systolic incompetence, and/or diastolic dysfunction. In liver disease, anesthetic drug distribution, metabolism, and elimination may be altered. Among patients with liver disease, propofol is a reasonable anesthetic choice and cisatracurium is the preferred neuromuscular blocker...
December 2016: Anesthesiology Clinics
https://www.readbyqxmd.com/read/27796041/optimal-anesthetic-regimen-for-ambulatory-laser-microlaryngeal-surgery
#16
Hyub Huh, Seol Ju Park, Hyong Hwan Lim, Kwang Yoon Jung, Seung-Kuk Baek, Seung Zhoo Yoon, Hye Won Lee, Hye Ja Lim, Jang Eun Cho
OBJECTIVES/HYPOTHESIS: Laser microlaryngeal surgery (LMS) is a short operation requiring brief and intense paralysis. Adequate muscle relaxation and rapid recovery of neuromuscular function are essential for improving surgical conditions and reducing the incidence of complications during LMS. However, the ideal muscle relaxant with a rapid onset and short duration of action is not yet available. Rocuronium has rapid onset at higher doses, but with a prolonged duration of action. Sugammadex is a selective relaxant-binding agent that allows for rapid reversal of rocuronium-induced neuromuscular blockade...
October 31, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27770577/metabotropic-and-ionotropic-glutamate-receptors-mediate-the-modulation-of-acetylcholine-release-at-the-frog-neuromuscular-junction
#17
Andrei Tsentsevitsky, Leniz Nurullin, Evgeny Nikolsky, Artem Malomouzh
There is some evidence that glutamate (Glu) acts as a signaling molecule at vertebrate neuromuscular junctions where acetylcholine (ACh) serves as a neurotransmitter. In this study, performed on the cutaneous pectoris muscle of the frog Rana ridibunda, Glu receptor mechanisms that modulate ACh release processes were analyzed. Electrophysiological experiments showed that Glu reduces both spontaneous and evoked quantal secretion of ACh and synchronizes its release in response to electrical stimulation. Quisqualate, an agonist of ionotropic α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic receptors and metabotropic Group I mGlu receptors, also exerted Glu-like inhibitory effects on the secretion of ACh but had no effect on the kinetics of quantal release...
October 22, 2016: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/27736708/corticosteroids-and-neuromuscular-blockers-in-development-of-critical-illness-neuromuscular-abnormalities-a-historical-review
#18
REVIEW
Susan R Wilcox
Weakness is common in critically ill patients, associated with prolonged mechanical ventilation and increased mortality. Corticosteroids and neuromuscular blockade (NMB) administration have been implicated as etiologies of acquired weakness in the intensive care unit. Medical literature since the 1970s is replete with case reports and small case series of patients with weakness after receiving high-dose corticosteroids, prolonged NMB, or both. Several risk factors for weakness appear in the early literature, including large doses of steroids, the dose and duration of NMB, hyperglycemia, and the duration of mechanical ventilation...
February 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/27696339/effects-of-sugammadex-vs-pyridostigmine-glycopyrrolate-on-post-operative-nausea-and-vomiting-propensity-score-matching
#19
O H Lee, G J Choi, H Kang, C W Baek, Y H Jung, Y C Woo, J Oh, Y H Park
BACKGROUND: Sugammadex is a new agent that reverses neuromuscular blockade by aminosteroid neuromuscular blocker. This retrospective study compared the effects of sugammadex on post-operative nausea and vomiting (PONV) with those of a pyridostigmine-glycopyrrolate mixture. METHODS: We reviewed the electronic medical records of 7179 patients who had received fentanyl-based, intravenous, patient-controlled analgesia (IV-PCA) at Chung-Ang University Hospital between January 1, 2010 and December 31, 2015...
January 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/27687446/interaction-between-magnesium-sulfate-and-neuromuscular-blockers-during-the-perioperative-period-a-systematic-review-and-meta-analysis
#20
REVIEW
Laura Rodríguez-Rubio, Julian Solis Garcia Del Pozo, Eduardo Nava, Joaquín Jordán
No abstract text is available yet for this article.
November 2016: Journal of Clinical Anesthesia
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