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Neuromuscular block

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https://www.readbyqxmd.com/read/29786115/effects-of-cardiac-output-on-the-onset-of-rocuronium-induced-neuromuscular-block-in-elderly-patients
#1
Naoki Shiraishi, Mayu Aono, Yasuhito Kameyama, Mai Yamamoto, Osamu Kitajima, Takahiro Suzuki
PURPOSE: The aim of this study was to elucidate the relationship between the onset of rocuronium-induced neuromuscular block and arterial pressure-based cardiac output (CO) in elderly patients. METHODS: Forty elderly patients aged 65-83 years were enrolled in this study. After induction of anesthesia, contractions of the adductor pollicis muscle to ulnar nerve train-of-four stimulation were acceleromyographically evaluated and 1 mg/kg rocuronium was administered following CO measurement...
May 21, 2018: Journal of Anesthesia
https://www.readbyqxmd.com/read/29777332/influence-of-tetanic-stimulation-on-the-staircase-phenomenon-and-the-acceleromyographic-time-course-of-neuromuscular-block-a-randomized-controlled-trial
#2
Guido Mazzinari, Carlos L Errando, Oscar Díaz-Cambronero, Manuel Martin-Flores
During neuromuscular monitoring, repeated electrical stimulation evokes muscle responses of increasing magnitude ('staircase phenomenon', SP). We aimed to evaluate whether SP affects time course and twitches' values of an acceleromyographic assessed neuromuscular block with or without previous tetanic stimulation. Fifty adult patients were randomized to receive a 50 Hz tetanic stimulus (S group) or not (C group) before monitor calibration. After 20 min of TOF ratio (TOFr) stimulation rocuronium was administered...
May 18, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29775120/successful-improvement-of-pain-symptomatology-in-a-suspected-case-of-cramp-fasciculation-syndrome-via-interventional-pain-treatment
#3
Anita Gupta, Lucas First, Celeste A Swain
Peripheral nerve hyperexcitability (PNH) syndromes are a rare set of neuromuscular disorders that include cramp-fasciculation syndrome (CFS) and Isaacs syndrome (IS). Successful treatment of these diseases has been achieved with antiepileptic medications; however, chronic pain symptoms can persist. We provide a case report of a 25-year-old female who has suffered from painful severe muscle spasms and fasciculations since childhood. With CFS as our working diagnosis, a treatment regimen using interventional pain techniques, including sympathetic chain blocks, ketamine infusions, and trigger point injections, resulted in a significant decrease in the patient's chronic pain symptoms...
May 18, 2018: Journal of Pain & Palliative Care Pharmacotherapy
https://www.readbyqxmd.com/read/29773756/mir126-5p-down-regulation-facilitates-axon-degeneration-and-nmj-disruption-via-a-non-cell-autonomous-mechanism-in-als
#4
Roy Maimon, Ariel Ionescu, Avichai Bonnie, Sahar Sweetat, Shane Wald-Altman, Shani Inbar, Tal Gradus, Davide Trotti, Miguel Weil, Oded Behar, Eran Perlson
Axon degeneration and disruption of neuromuscular junctions (NMJs) are key events in Amyotrophic Lateral Sclerosis (ALS) pathology. Although the disease's etiology is not fully understood, it is thought to involve a non-cell-autonomous mechanism and alterations in RNA metabolism. Here, we identified reduced levels of miR-126-5p in pre-symptomatic ALS male mice models, and an increase in its targets: axon destabilizing type-3 Semaphorins and their co-receptor Neuropilins. Utilizing compartmentalized in vitro co-cultures, we demonstrated that myocytes expressing diverse ALS-causing mutations promote axon degeneration and NMJ dysfunction, which were inhibited by applying Neuropilin1 (NRP1) blocking antibody...
May 17, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29762339/the-relationship-between-fear-avoidance-and-neuromuscular-measures-of-function-in-patients-with-adult-degenerative-scoliosis
#5
Ram Haddas, Isador H Lieberman, Andrew Block
STUDY DESIGN: A prospective cohort study. OBJECTIVE: To examine the relationship of fear-avoidance beliefs and neuromuscular activity during gait in adult degenerative scoliosis (ADS) patients. SUMMARY OF BACKGROUND DATA: Among patients with chronic spine pain, fear-avoidance beliefs are predictive of poor surgical outcomes. Fear-avoidance occurs when patients perceive that movement will worsen underlying physical problems. This process leads them to restrict activity, which further heightens emotional distress...
May 14, 2018: Spine
https://www.readbyqxmd.com/read/29761274/lower-intra-abdominal-pressure-has-no-cardiopulmonary-benefits-during-laparoscopic-colorectal-surgery-a-double-blind-randomized-controlled-trial
#6
Youn Joung Cho, Hyesun Paik, Seung-Yong Jeong, Ji Won Park, Woo Young Jo, Yunseok Jeon, Kook Hyun Lee, Jeong-Hwa Seo
BACKGROUND: Higher intra-abdominal pressure may impair cardiopulmonary functions during laparoscopic surgery. While 12-15 mmHg is generally recommended as a standard pressure, the benefits of lower intra-abdominal pressure are unclear. We thus studied whether the low intra-abdominal pressure compared with the standard pressure improves cardiopulmonary dynamics during laparoscopic surgery. METHODS: Patients were randomized according to the intra-abdominal pressure and neuromuscular blocking levels during laparoscopic colorectal surgery: low pressure (8 mmHg) with deep-block (post-tetanic count 1-2), standard pressure (12 mmHg) with deep-block, and standard pressure with moderate-block (train-of-four count 1-2) groups...
May 14, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29756064/neuromuscular-monitoring-an-update
#7
REVIEW
Mădălina Duţu, Robert Ivaşcu, Oana Tudorache, Darius Morlova, Alina Stanca, Silvius Negoiţă, Dan Corneci
This review makes an advocacy for neuromuscular blockade monitoring during anaesthesia care, by: (i) describing the fundamental principles of the methods currently available, at the same time emphasizing quantitative recording measurements; (ii) describing the different ways in which muscles respond to the effect of neuromuscular blockade and their use in clinical practice; (iii) presenting results of different studies on timing and agents of neuromuscular block reversal, including a recommendation for sugammadex use and experimental results with calabadion and (iv) in the end emphasizing the need for implementing neuromuscular monitoring as a practice that should be used every time a neuromuscular block is required...
April 2018: Romanian Journal of Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/29745620/non-ventilatory-therapies-for-acute-respiratory-distress-syndrome
#8
Jérémy Bourenne, Sami Hraiech, Romain Rambaud, Jean-Marie Forel, Nicolas Persico, Christophe Guervilly, Laurent Papazian
Acute respiratory distress syndrome (ARDS) commonly affects intensive care unit patients and is associated with high mortality. In addition to etiologic treatment and protective ventilation, non-ventilatory therapies represent a significant part of ARDS care. Pharmacological treatments, extra corporeal devices and prone positioning are commonly grouped under this term. Studies have evaluated the individual effects of some of these non- ventilatory therapies in large randomized controlled trials. Recent advances concerning the beneficial use of neuromuscular blocking agents and prone positioning deserve attention...
May 9, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29744241/does-deep-neuromuscular-block-facilitate-laparoscopic-surgery-the-picture-is-not-clear
#9
Béla Fülesdi, László Asztalos, Edömér Tassonyi
No abstract text is available yet for this article.
April 2018: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/29744239/neuromuscular-block-and-blocking-agents-in-2018
#10
Christoph Unterbuchner
No abstract text is available yet for this article.
April 2018: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/29744238/deep-neuromuscular-block-facilitates-laparoscopic-surgery-or-probably-does-not
#11
Béla Fülesdi, László Asztalos, Edömér Tassonyi
No abstract text is available yet for this article.
April 2018: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/29739451/reflex-erection-in-the-rat-reciprocal-interplay-between-hemodynamic-and-somatic-events
#12
Alexander Andreev-Andrievskiy, Evgeniia Lagereva, Anfisa Popova
BACKGROUND: Penile erection is a complex reflex under spinal control and modulated by the brain. The hemodynamic events under autonomic control and the perineal muscles somatic activity are interconnected during the reflex erection at the spinal level, however if the afferent feedback on the corpus cavernosum pressure during an erection affects the somatic activity (perineal muscles contractions) and vice versa is not known. This study was aimed to test this hypothesis using a rat model...
May 8, 2018: BMC Urology
https://www.readbyqxmd.com/read/29727028/effects-of-depth-of-neuromuscular-block-on-surgical-conditions-during-laparoscopic-colorectal-surgery-a-randomised-controlled-trial
#13
B W Koo, A Y Oh, H S Na, H J Lee, S B Kang, D W Kim, K S Seo
There have been few objective evaluations of the effects of deep neuromuscular blockade on intra-operative conditions. In this prospective randomised controlled study, we evaluated the effects of deep neuromuscular block on surgical conditions during laparoscopic colorectal surgery. Patients were randomly allocated using a computer-generated randomisation code to either moderate (train-of-four count 1-2 maintained and antagonised with neostigmine) or deep (post-tetanic count 1-2 maintained and reversed with sugammadex) levels of neuromuscular blockade...
May 4, 2018: Anaesthesia
https://www.readbyqxmd.com/read/29722285/optimal-neuromuscular-blocking-effects-of-remifentanil-during-tracheal-intubation-under-general-anesthesia
#14
So Young Kwon, Si Wook Chung, Jin Deok Joo
Objective This study was performed to determine the effect of the remifentanil dose on the onset time of rocuronium with electromyography. Methods This retrospective comparative study included 75 patients undergoing general anesthesia for elective surgery. Patients received lidocaine (40 mg) and propofol (2 mg/kg) followed by rocuronium (0.6 mg/kg) with either saline infusion (Group S), remifentanil at 0.5 µg/kg/minute (Group R 0.5), or remifentanil at 1.0 µg/kg/minute (Group R 1.0). Neuromuscular block was monitored by train-of-four (TOF) electromyography, and the times taken to reach TOF 0 and TOF ratio (TOFR) 25% were recorded...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29712789/macrophage-depletion-ameliorates-peripheral-neuropathy-in-aging-mice
#15
Xidi Yuan, Dennis Klein, Susanne Kerscher, Brian L West, Joachim Weis, Istvan Katona, Rudolf Martini
Aging is known as a major risk factor for the structure and function of the nervous system. There is urgent need to overcome such deleterious effects of age-related neurodegeneration. Here we show that peripheral nerves of 24-month-old aging C57Bl6 mice of either sex show similar pathological alterations as nerves from aging human individuals while 12 months old adult mice lack such alterations. Specifically, nerve fibers showed de- and remyelination and axonal lesion. Moreover, in the aging mice, neuromuscular junctions showed features typical for dying-back neuropathies, as revealed by a decline of pre-synaptic markers, associated with α-bungarotoxin-positive postsynapses...
April 30, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29708263/parameters-and-functional-analysis-of-the-deep-epaxial-muscles-in-the-thoracic-lumbar-and-sacral-regions-of-the-equine-spine
#16
J A García Liñeiro, G H Graziotti, J M Rodríguez Menéndez, C M Ríos, N O Affricano, C L Victorica
The epaxial muscles produce intervertebral rotation in the transverse, vertical and axial axes. These muscles also counteract the movements induced by gravitational and inertial forces and movements produced by antagonistic muscles and the intrinsic muscles of the pelvic limb. Their fascicles are innervated by the dorsal branch of the spinal nerve, which corresponds to the metamere of its cranial insertion in the spinous process. The structure allows the function of the muscles to be predicted: those with long and parallel fibres have a shortening function, whereas the muscles with short and oblique fibres have an antigravity action...
April 30, 2018: Journal of Anatomy
https://www.readbyqxmd.com/read/29706811/use-of-neuromuscular-blocking-agents-in-acute-respiratory-distress-syndrome
#17
REVIEW
G Tsai-Nguyen, Ariel M Modrykamien
Acute respiratory distress syndrome is the result of an acute inflammatory response of the lungs, causing severe hypoxemia. A variety of therapeutic modalities have been extensively studied, with only a few demonstrating improvement in survival. Specifically, mechanical ventilation with use of low tidal volumes, prone positioning, and treatment with neuromuscular blocking agents have proven beneficial. This article focuses on the utilization of neuromuscular blocking agents in this entity. In particular, we briefly review the mechanism of action of neuromuscular blockades, the latest published evidence supporting their use in acute respiratory distress syndrome, and current recommendations for their utilization in clinical practice...
April 2018: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/29705688/survey-of-how-different-groups-of-veterinarians-manage-the-use-of-neuromuscular-blocking-agents-in-anesthetized-dogs
#18
Manuel Martin-Flores, Daniel M Sakai, Luis Campoy, Robin D Gleed
OBJECTIVE: To analyze practice habits associated with the use, reversal and monitoring of nondepolarizing neuromuscular blocking agents (NMBAs) in dogs by different groups of veterinarians. STUDY DESIGN: Online anonymous survey to veterinarians. POPULATION: Data from 390 answered surveys. METHODS: A questionnaire was sent to e-mail list servers of the American College of Veterinary Anesthesia and Analgesia (ACVAA-list), Sociedad Española de Anestesia y Analgesia Veterinaria (SEEAV-list), Colégio Brasileiro de Anestesiologia Veterinária (Brazilian College of Veterinary Anesthesiology; CBAV-list) and American College of Veterinary Ophthalmologists (ACVO-list) to elicit information regarding use of NMBAs and reversal agents, monitoring techniques, criteria for redosing, reversing and assessing adequacy of recovery of neuromuscular function...
March 23, 2018: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29701428/anaesthetic-management-in-a-duchennne-muscle-dystrophy-patient-for-treatment-of-recurrent-pneumothorax
#19
Sara Mota, Liuba Germanova, Joana Cortesão, Teresa Paiva
INTRODUCTION: Duchenne muscular dystrophy (DMD) is an x linked recessive disorder. Long term prognosis is ominous, with development of respiratory distress and cardiomyopathy in advanced stage of the disease and expected death in the teens-to-mid 20s due to respiratory or cardiac failure. Peri-operative management of this patients is challenging due to difficult airway anatomy (macroglossia, limited neck and mandibular mobility). Additionally, they are at risk of developing malignant hyperthermia, rhabdomyolysis and hyperkalemic cardiac arrest when exposed to halogenated inhalational anaesthetics and depolarizing muscle relaxants...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29701426/is-invasive-pressure-monitoring-more-reliable-than-non-invasive-in-patients-with-cardiovascular-pathology-a-case-report
#20
Andreia Fernandes, Luísa Coimbra, Inês Delgado, José Carvalho, Carla Bentes
INTRODUCTION: Patients undergoing carotid endarterectomy (CEA) require strict arterial blood pressure (BP) control to maintain adequate cerebral perfusion. Invasive blood pressure (IBP) is the gold standard, however artifacts may lead to erroneous readings. METHODS: We report a case of CEA using IBP monitoring. RESULTS: A 64-year-old man, American Society Anaesthesiology (ASA) physical status 3 (diffuse atheromathosis, dyslipidemia and non-medicated hypertension), was presented for an elective right CEA...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
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