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neuromuscular ultrasound

John R Weinstein, Lisa M Thompson, Anaité Díaz Artiga, Joe P Bryan, William E Arriaga, Saad B Omer, John P McCracken
BACKGROUND: Preterm birth is the leading cause of death among children <5 years of age. Accurate determination of prematurity is necessary to provide appropriate neonatal care and guide preventive measures. To estimate the most accurate method to identify infants at risk for adverse outcomes, we assessed the validity of two widely available methods-last menstrual period (LMP) and the New Ballard (NB) neonatal assessment-against ultrasound in determining gestational age and preterm birth in highland Guatemala...
2018: PloS One
Sangeeta Rathi, Nicholas F Taylor, Brendan Soo, Rodney A Green
OBJECTIVES: To determine whether patients with symptomatic rotator cuff pathology had more glenohumeral joint translation and different patterns of rotator cuff muscle activity compared to controls. DESIGN: Repeated measurements of glenohumeral translation and muscle activity in two positions and six testing conditions in two groups. METHODS: Twenty participants with a symptomatic and diagnosed rotator cuff tear and 20 age, and gender matched controls were included...
March 2, 2018: Journal of Science and Medicine in Sport
Priyanka Tater, Sanjay Pandey
Botulinum toxin has gained immense popularity since its introduction for therapeutic use. It is used in a variety of movement disorders like hemi-facial spasm, focal dystonias like blepharospasm, cervical dystonia, oromandibular dystonia, limb dystonias. It is also being used in patients with tremors, tics and for a variety of indications in Parkinson's disease as well. There are eight subtypes of toxins available, but type A and B are the ones used in movement disorder clinics. The toxin mainly acts by inhibiting the release of acetylcholine at the neuromuscular junction and causing weakness...
March 2018: Neurology India
Haneul Lee, Jerrold Petrofsky
CONTEXT:   Although much attention has been paid to the effect of estrogen on the knee ligaments, little has been done to examine the ligaments in the foot, such as the plantar fascia and how they may be altered during the menstrual cycle. OBJECTIVE:   To (1) examine sex differences in plantar fascia thickness and laxity and postural sway and (2) identify any menstrual cycle effects on plantar fascia laxity, postural sway, and neuromuscular tremor between menstruation and the ovulation phase...
February 27, 2018: Journal of Athletic Training
Iacopo Cappellini, Fabio Picciafuochi, Daniele Ostento, Ginevra Danti, Angelo Raffaele De Gaudio, Chiara Adembri
BACKGROUND: The extensive use of neuromuscular blocking agents (NMBAs) during surgical procedures still leads to potential residual paralyzing effects in the postoperative period. Indeed, neuromuscular monitoring in an intra-operative setting is strongly advocated. Acetylcholinesterase inhibitors can reverse muscle block, but their short half-life may lead to residual curarization in the ward, especially when intermediate or long-acting NMBAs have been administered. Sugammadex is the first selective reversal drug for steroidal NMBAs; it has been shown to give full and rapid recovery of muscle strength, thus minimizing the occurrence of residual curarization...
February 21, 2018: Trials
Connor M Forbes, Ryan Flannigan, Darius A Paduch
BACKGROUND: Ejaculation consists of the emission of semen from seminal vesicles and prostate, followed by expulsion. Ejaculatory dysfunction may take several forms including premature ejaculation, delayed or anejaculation, retrograde ejaculation, and painful ejaculation. Ejaculation is what we can see whereas orgasm is what we feel. The presence of ejaculate does not indicate the ability to experience orgasm. Hence, for the purpose of this work we consider orgasm and ejaculation as 2 separate neurobiological phenomena...
February 17, 2018: Sexual Medicine Reviews
Dimitrios A Patikas, Craig A Williams, Sébastien Ratel
PURPOSE: In recent decades, the interest for exercise-induced fatigue in youth has substantially increased, and the effects of growth on the peripheral (muscular) and central (neural) mechanisms underpinning differences in neuromuscular fatigue between healthy children and adults have been described more extensively. The purpose of this review is to retrieve, report, and analyse the findings of studies comparing neuromuscular fatigue between children and adults. Objective measures of the evaluation of the physiological mechanisms are discussed...
February 13, 2018: European Journal of Applied Physiology
Laxmi Kokatnur, Mohan Rudrappa
The diaphragm is the primary muscle of respiration, and its weakness can lead to respiratory failure. Diaphragmatic palsy can be caused by various causes. Injury to the phrenic nerve during thoracic surgeries is the most common cause for diaphragmatic palsy. Depending on the cause, the symptoms of diaphragmatic palsies vary from completely asymptomatic to disabling dyspnea requiring mechanical ventilation. On pulmonary function tests, there will be a decrease in the maximum respiratory muscle power. Spirometry shows reduced lung functions and a significant drop of lung function in supine position is typical of diaphragmatic palsy...
February 13, 2018: Diseases (Basel)
Emma Burch, Lacey Lubeley, James Murakami
Objectives: Sialorrhea is a common health and psychosocial problem for children with neuromuscular dysfunction secondary to a variety of disorders such as cerebral palsy. Current accepted treatments include the injection of botulinum toxin into the submandibular glands for temporary symptom relief. The purpose of this study is to demonstrate the feasibility of percutaneous ethanol injection for longer lasting salivary gland ablation in an animal model. Material and Methods: Twenty rats were used in this study...
October 2017: Journal of Oral & Maxillofacial Research
Christie L Glau, Thomas W Conlon, Adam S Himebauch, Nadir Yehya, Scott L Weiss, Robert A Berg, Akira Nishisaki
OBJECTIVES: Diaphragm atrophy is associated with delayed weaning from mechanical ventilation and increased mortality in critically ill adults. We sought to test for the presence of diaphragm atrophy in children with acute respiratory failure. DESIGN: Prospective, observational study. SETTING: Single-center tertiary noncardiac PICU in a children's hospital. PATIENTS: Invasively ventilated children with acute respiratory failure...
February 5, 2018: Pediatric Critical Care Medicine
L Harlaar, P Ciet, A T van der Ploeg, E Brusse, N A M E van der Beek, P A Wielopolski, M de Bruijne, H A W M Tiddens, P A van Doorn
Respiratory muscle weakness frequently occurs in patients with neuromuscular disease. Measuring respiratory function with standard pulmonary function tests provides information about the contribution of all respiratory muscles, the lungs and airways. Imaging potentially enables the study of different respiratory muscles, including the diaphragm, separately. In this review, we provide an overview of imaging techniques used to study respiratory muscles in neuromuscular disease. We identified 26 studies which included a total of 573 patients with neuromuscular disease...
November 24, 2017: Neuromuscular Disorders: NMD
Abdallah Fayssoil, Anthony Behin, Adam Ogna, Dominique Mompoint, Helge Amthor, Bernard Clair, Pascal Laforet, Arnaud Mansart, Helene Prigent, David Orlikowski, Tanya Stojkovic, Stéphane Vinit, Robert Carlier, Bruno Eymard, Frederic Lofaso, Djillali Annane
Respiratory muscles are classically involved in neuromuscular disorders, leading to a restrictive respiratory pattern. The diaphragm is the main respiratory muscle involved during inspiration. Ultrasound imaging is a noninvasive, radiation-free, accurate and safe technique allowing assessment of diaphragm anatomy and function. The authors review the pathophysiology of diaphragm in neuromuscular disorders, the methodology and indications of diaphragm ultrasound imaging as well as possible pitfalls in the interpretation of results...
2018: Journal of Neuromuscular Diseases
Astrid Pechmann, Thorsten Langer, Sabine Wider, Janbernd Kirschner
BACKGROUND: Spinal muscular atrophy (SMA) is a neuromuscular disorder mainly characterized by proximal muscle weakness. There have been enormous advances in therapeutic development with the possibility to influence the clinical course of the disease. Nusinersen is the first approved drug to treat SMA. It is administered intrathecally and acts as splicing modifier of the SMN2 gene. METHODS: Lumbar punctures were performed using a standardized protocol. To evaluate safety and feasibility of the intrathecal treatment, vital signs and the need for sedation, analgesia or mechanical ventilation during the procedure were monitored...
January 2018: European Journal of Paediatric Neurology: EJPN
Abdullah Baqui, Parvez Ahmed, Sushil Kanta Dasgupta, Nazma Begum, Mahmoodur Rahman, Nasreen Islam, Mohammad Quaiyum, Betty Kirkwood, Karen Edmond, Caitlin Shannon, Samuel Newton, Lisa Hurt, Fyezah Jehan, Imran Nisar, Atiya Hussain, Naila Nadeem, Muhammad Ilyas, Anita Zaidi, Sunil Sazawal, Saikat Deb, Arup Dutta, Usha Dhingra, Said Moh'd Ali, Davidson H Hamer, Katherine Ea Semrau, Marina Straszak-Suri, Caroline Grogan, Godfrey Bemba, Anne Cc Lee, Blair J Wylie, Alexander Manu, Sachiyo Yoshida, Rajiv Bahl
Objective: The objective of the Alliance for Maternal and Newborn Health Improvement (AMANHI) gestational age study is to develop and validate a programmatically feasible and simple approach to accurately assess gestational age of babies after they are born. The study will provide accurate, population-based rates of preterm birth in different settings and quantify the risks of neonatal mortality and morbidity by gestational age and birth weight in five South Asian and sub-Saharan African sites...
December 2017: Journal of Global Health
L von Rohden, Julian H W Jürgens
BACKGROUND: The increasing number of treatable hereditary neuromuscular diseases in children requires a diagnostic tool that can quickly, safely, and noninvasively identify affected patients directly after birth or when showing initial clinical symptoms. With clinical analysis alone, this is very difficult. IMAGING MODALITY: Near-field sonography of skeletal muscles has gradually become established as a successful method over the last 35 years. METHODOLOGICAL INNOVATIONS: Examination is performed using a strictly standardized protocol in isotopic muscle regions and with standardized sections and application parameters...
December 2017: Der Radiologe
Christian Larivière, Dany H Gagnon, Sharon M Henry, Richard Preuss, Jean-Pierre Dumas
BACKGROUND: Lumbar statilization exercise programs (LSEP) produce positive effects on clinical outcomes, but the underlying mechanisms remain fairly unexplored. Psychological and neuromuscular mechanisms can be involved such as a better activation of the lumbar multifidus which represents one possibility. OBJECTIVES: To determine the (1) effect of a LSEP on lumbar multifidus muscle thickness and activation, as measured with rehabilitative ultrasound imaging (RUSI), in patients with low back pain (LBP); (2) correlation between RUSI measures and any change in clinical outcomes following the LSEP; (3) reliability of RUSI measures in control subjects over 8 weeks...
October 30, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
Paulo Eugênio Silva, Vinicius Maldaner, Luciana Vieira, Karina Livino de Carvalho, Hedian Gomes, Priscilla Melo, Nicolas Babault, Gerson Cipriano, Joao Luiz Quagliotti Durigan
PURPOSE: It is unclear whether the muscular changes in mechanically-ventilated traumatic brain injury patients (TBI) are only associated with disuse or additionally to neuromuscular electrophysiological disorders (NED). The correlation between muscle atrophy and NED may affect functional outcomes and rehabilitation programs significantly. MATERIAL AND METHODS: An observational study was performed to investigate the presence of NED and muscle atrophy in TBI patients undergoing mechanical ventilation...
October 19, 2017: Journal of Critical Care
Sungjin Oh, Dong Hwee Kim, Inchan Youn
Low-intensity ultrasound can be used for noninvasive neuromuscular stimulation to enhance the recovery of injured peripheral nerves and muscles. In order to improve the stimulation efficiency, focused ultrasound (FUS) with a high energy density should be used. Because the FUS is concentrated at a miniaturized focal area, deliberate targeting with focal depth control is required to achieve the accurate stimulation. In this study, a low-intensity focused ultrasound (LIFU) stimulator with a focal depth controller is presented as an effective ultrasound stimulation system for the neuromuscular rehabilitation...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
M Scholes, S Stadler, D Connell, C Barton, R A Clarke, A L Bryant, P Malliaras
OBJECTIVES: To investigate single leg standing balance in males with mid-portion Achilles tendinopathy (AT). DESIGN: Cross sectional case study. METHODS: Centre of pressure (COP) path length was measured using a Wii Balance Board (WBB) in 21 male participants (20-60 years) with unilateral mid-portion AT during single-limb standing on each limb with eyes open and closed. Ultrasound imaging of both Achilles tendons was also performed by one blinded assessor, and the anteroposterior (AP) thickness and presence of pathology was determined...
October 6, 2017: Journal of Science and Medicine in Sport
Lisa D Hobson-Webb, David C Preston, Michael S Cartwright
No abstract text is available yet for this article.
February 2018: Muscle & Nerve
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