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Ultrasound and nerve

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https://www.readbyqxmd.com/read/29226148/transition-from-deep-regional-blocks-toward-deep-nerve-hydrodissection-in-the-upper-body-and-torso-method-description-and-results-from-a-retrospective-chart-review-of-the-analgesic-effect-of-5-dextrose-water-as-the-primary-hydrodissection-injectate-to-enhance
#1
Stanley K H Lam, Kenneth Dean Reeves, An-Lin Cheng
Deep nerve hydrodissection uses fluid injection under pressure to purposely separate nerves from areas of suspected fascial compression, which are increasingly viewed as potential perpetuating factors in recalcitrant neuropathic pain/complex regional pain. The usage of 5% dextrose water (D5W) as a primary injectate for hydrodissection, with or without low dose anesthetic, could limit anesthetic-related toxicity. An analgesic effect of 5% dextrose water (D5W) upon perineural injection in patients with chronic neuropathic pain has recently been described...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29225720/new-frontiers-in-molecular-and-imaging-research-on-evaluation-and-diagnosis-of-bladder-outlet-obstruction-in-women
#2
Laura Martinez, Rose Khavari
Purpose: Diagnosis of bladder outlet obstruction (BOO) often presents a challenge in female patients. Traditional diagnostic elements such as symptom history and urodynamic data are rarely clear cut in women. Therefore, we sought to review the current literature on diagnosis of female BOO, focusing on new frontiers in the realm of molecular markers and imaging modalities. Recent Findings: In addition to fluoroscopy in the setting of videourodynamics, ultrasound and MRI can augment the diagnosis and aid in therapeutic planning in certain etiologies of female BOO...
December 2017: Current Bladder Dysfunction Reports
https://www.readbyqxmd.com/read/29224639/a-multinational-clinical-approach-to-assessing-the-effectiveness-of-catheter-based-ultrasound-renal-denervation-the-radiance-htn-and-require-clinical-study-designs
#3
Laura Mauri, Kazuomi Kario, Jan Basile, Joost Daemen, Justin Davies, Ajay J Kirtane, Felix Mahfoud, Roland E Schmieder, Michael Weber, Shinsuke Nanto, Michel Azizi
Catheter-based renal denervation is a new approach to treat hypertension via modulation of the renal sympathetic nerves. Although nonrandomized and small, open-label randomized studies resulted in significant reductions in office blood pressure 6months after renal denervation with monopolar radiofrequency catheters, the first prospective, randomized, sham-controlled study (Symplicity HTN-3) failed to meet its blood pressure efficacy end point. New clinical trials with new catheters have since been designed to address the limitations of earlier studies...
January 2018: American Heart Journal
https://www.readbyqxmd.com/read/29218390/gemelli-obturator-complex-in-the-deep-gluteal-space-an-anatomic-and-dynamic-study
#4
Ramon Balius, Antonio Susín, Carles Morros, Montse Pujol, Dolores Pérez-Cuenca, Xavier Sala-Blanch
OBJECTIVE: To investigate the behavior of the sciatic nerve during hip rotation at subgluteal space. MATERIALS AND METHODS: Sonographic examination (high-resolution ultrasound machine at 5.0-14 MHZ) of the gemelli-obturator internus complex following two approaches: (1) a study on cadavers and (2) a study on healthy volunteers. The cadavers were examined in pronation, pelvis-fixed position by forcing internal and external rotations of the hip with the knee in 90° flexion...
December 7, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29218369/peripheral-nerve-ultrasound-findings-in-mucolipidosis-type-3
#5
Eoin Mulroy, Andrew M Chancellor, Luciana Pelosi
PURPOSE: The mucolipidoses are rare autosomal recessive lysosomal storage disorders. Neurologic involvement in these conditions is generally thought to be limited to cognitive delay and entrapment neuropathies (primarily carpal tunnel syndrome). We sought to evaluate peripheral nerves in this condition using nerve ultrasound. METHODS: We performed peripheral nerve ultrasound in two siblings with genetically confirmed mucolipidosis type 3 (alpha/beta). RESULTS: Peripheral nerves in mucolipidosis type 3 (alpha/beta) exhibit multifocal enlargement...
December 7, 2017: Neuroradiology
https://www.readbyqxmd.com/read/29218129/pubic-symphysis-diastasis-a-case-series-and-literature-review
#6
Jaya Jethra Chawla, Devendra Arora, Namrita Sandhu, Megha Jain, Anju Kumari
Separation of pubic symphysis during delivery is a rare complication resulting in considerable and prolonged morbidity for parturient women. The usual presentation is that of something giving way in the region of the symphysis pubis sometimes with an audible crack at the time of delivery. Unbearable pain on moving from side-to-side and on performing any weight-bearing activity (such as walking or climbing stairs) precludes ambulation in the immediate postpartum period. This could be accompanied by disruption of the sacroiliac joint, hemorrhage, or urine incontinence in severe cases...
November 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/29216775/value-of-ultrasound-in-diagnosis-of-radial-nerve-palsy-with-hourglass-like-constrictions-without-extrinsic-compression-a-case-report
#7
Chul-Hyung Lee, Taehyeon Jeon, Cheol-U Kim
No abstract text is available yet for this article.
January 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/29214985/non-invasive-peripheral-nerve-stimulation-via-focused-ultrasound-i-in-vivo-i
#8
Matthew Eric Downs, Stephen A Lee, Georgiana Yang, Seaok Kim, Qi Wang, Elisa E Konofagou
Focused ultrasound (FUS) has been employed on a wide range of clinical applications to safely and non-invasively achieve desired effects that have previously required invasive and lengthy procedures with conventional methods. Conventional electrical neuromodulation therapies that are applied to the peripheral nervous system (PNS) are invasive and/or non-specific. Recently, focused ultrasound has demonstrated the ability to modulate the central nervous system and ex vivo peripheral neurons. Here, for the first time, noninvasive stimulation of the sciatic nerve eliciting a physiological response in vivo is demonstrated with FUS...
December 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29207852/the-efficacy-and-safety-of-high-intensity-focused-ultrasound-ablation-of-benign-thyroid-nodules
#9
Brian H Lang, Arnold L H Wu
High-intensity focused ultrasound (HIFU) is a promising form of thermal ablation of benign thyroid nodules, but evidence supporting its use is scarce. The present review evaluated the efficacy and safety of single-session HIFU treatment of benign thyroid nodules. As reported in the literature, the extent of nodule shrinkage following treatment ranged from 48.8% to 68.8%. Like other forms of ablation, the shrinkage rate was greatest in the first 3-6 months, and the best responders were patients with small (≤10 mL) nodules...
October 10, 2017: Ultrasonography
https://www.readbyqxmd.com/read/29206666/immediate-effects-of-simultaneous-application-of-transcutaneous-electrical-nerve-stimulation-and-ultrasound-phonophoresis-on-active-myofascial-trigger-points-a-randomized-controlled-trial
#10
Mary Kamal Nassif Takla, Soheir Shethata Rezk-Allah Rezk
OBJECTIVE: was to investigate the efficacy of phonophoresis with combined therapy (PH-CT) on active myofascial trigger points (MTrPs). PARTICIPANTS: One hundred participants with acute mechanical neck pain and at least one active MTrP in the upper trapezius were randomly assigned into 4 equal groups. INTERVENTION: Groups consisted of; diclofenac PH-CT; diclofenac phonophoresis (PH); ultrasound (US) with coupling gel and sham-US; applied for 10 minutes over MTrP...
December 5, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29205687/ultrasound-guided-pudendal-nerve-block-in-children-a-new-technique-of-ultrasound-guided-transperineal-approach
#11
Isabelle Gaudet-Ferrand, Pablo De La Arena, Sophie Bringuier, Olivier Raux, Laurent Hertz, Nicolas Kalfa, Chrystelle Sola, Christophe Dadure
BACKGROUND: Transperineal pudendal nerve block guided by nerve stimulator is used in pediatric anesthesia as an alternative to caudal analgesia in perineal surgery. The risk of rectal puncture or intravascular injection is inherent to this blinded technique. We described a new technique of transperineal pudendal nerve block, with ultrasound guidance, to improve safety of the technique. AIMS: The first goal of this study was to describe this new technique and to test its feasibility...
December 5, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29205686/ultrasound-guided-lower-forearm-median-nerve-block-in-open-surgery-for-trigger-thumb-in-1-to-3-year-old-children-a-randomized-trial
#12
Wei Liu, Jianxia Liu, Xingqin Tan, Shouyong Wang
BACKGROUND AND AIM: Trigger thumb is a common hand disability in children and is primarily treated with open surgery. A conscious median nerve block can usually meet the requirements for trigger thumb-releasing surgery in adults; however, its effectiveness in children requires further clarification. The present study aims to demonstrate whether ultrasound-guided lower forearm median nerve blockade is a viable option for children undergoing open surgery for trigger thumb. METHODS: A prospective randomized study was designed to compare median nerve blocks guided by ultrasonography with those guided by anatomic landmarks...
December 5, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29205398/nerve-ultrasound-in-polyneuropathies
#13
Johan A Telleman, Alexander Grimm, Stephen Goedee, Leo H Visser, Craig M Zaidman
Ultrasound can be used to visualize pathology in the peripheral nerves of patients with polyneuropathy. Nerve enlargement is the most frequent pathology, but other abnormalities including abnormal nerve echogenicity and vascularity are also encountered. This monograph presents an overview of the role of nerve ultrasound in the evaluation and management of both inherited and acquired polyneuropathies. A description of the sonographic techniques and common abnormalities is provided, followed by a presentation of typical findings in different neuropathies...
December 2, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/29204233/median-nerve-evaluation-by-shear-wave-elastosonography-impact-of-bone-proximity-hardening-artifacts-and-inter-observer-agreement
#14
Chandra Bortolotto, Elena Turpini, Paolo Felisaz, Daniele Fresilli, Ilaria Fiorina, Maria Vittoria Raciti, Elena Belloni, Olivia Bottinelli, Vito Cantisani, Fabrizio Calliada
Purpose: Peripheral nerves frequently travel close to the bone surface and are, therefore, prone to elastosonographic "bone-proximity" hardening artifacts. The impact of these artifacts on quantitative measurements of median nerve stiffness performed by shear wave elastosonography has not been explored. Our aim was to assess normal median nerve stiffness values at various locations. Materials and methods: Thirty-six healthy volunteers (24 women and 12 men) aged between 25 and 40 years were evaluated...
December 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/29204225/-in-vivo-gastrocnemius-muscle-tendon-ratio-in-patients-with-cerebral-palsy
#15
Muhammad Naghman Choudhry, Haris Naseem, Ihsan Mahmood, Adeel Aqil, Tahir Khan
Background: The position of the gastrocnemius tendon in relation to the leg length may be different in children with cerebral palsy as compared to normal children. The palpation of muscle bellies or previous experience of the operating surgeon is employed to place the surgical incision for lengthening of the gastrocnemius aponeurosis. Inaccurate localisation may cause incorrect incisions and a risk of iatrogenic damage to the vital structures (i.e. sural nerve). Objectives: The aim of our study is to compare gastrocnemius length in-vivo between paretic and unaffected children and create a formula to localise the muscle-tendon junction accurately...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29202391/high-resolution-ultrasound-in-patients-with-wartenberg-s-migrant-sensory-neuritis-a-case-control-study
#16
Ingrid J T Herraets, H Stephan Goedee, Johan A Telleman, Jan-Thies H van Asseldonk, Leo H Visser, W Ludo van der Pol, Leonard H van den Berg
OBJECTIVE: Wartenberg's migrant sensory neuritis (WMSN) is a rare, patchy, pure sensory neuropathy of unknown etiology. High-resolution ultrasonography (HRUS) is an emerging diagnostic technique for neuropathies, but it has not been applied in WMSN. In this study we aimed to determine HRUS abnormalities in WMSN. METHODS: We performed a case-control study of 8 newly diagnosed patients with WMSN and 22 treatment-naive disease controls (16 patients with pure sensory axonal neuropathy and 6 with pure sensory chronic inflammatory demyelinating polyneuropathy (CIDP) or Lewis-Sumner syndrome (LSS))...
November 21, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29198931/ultrasound-guided-maxillary-and-inferior-alveolar-nerve-blocks-for-postoperative-analgesia-in-gnathoplasty
#17
Sho Kumita, Takeshi Murouchi, Johji Arakawa
No abstract text is available yet for this article.
November 22, 2017: Asian Journal of Anesthesiology
https://www.readbyqxmd.com/read/29197923/a-rare-case-of-an-acute-soleus-arcade-syndrome-complicated-by-a-ganglion-cyst-diagnosis-by-dynamic-ultrasound
#18
Leonhard Gruber, Alexander Loizides, Stephanie Klien, Thomas Trieb, Michael Koller, Wolfgang Löscher, Hannes Gruber
The soleus arcade syndrome is a rare compression neuropathy of the tibial nerve that often remains undiagnosed due to low clinical awareness and difficult diagnosis. We present the case of a female patient admitted with acute worsening of a pre-existing sensory tibial neuropathy and acute tibial nerve palsy after knee joint injection. After a knee magnetic resonance imaging remained non-diagnostic, dynamic ultrasonography was performed. Constriction by the soleus arcade and proximal swelling of the tibial nerve could be demonstrated during plantarflexion of the ankle by means of a dynamic examination in the standing patient...
November 29, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/29197131/3d-reconstruction-of-peripheral-nerves-from-optical-projection-tomography-opt-images-a-method-for-studying-fascicular-interconnections-and-intraneural-plexuses
#19
Alberto Prats-Galino, Martin Čapek, Miguel A Reina, Erika Cvetko, Barbora Radochova, R Shane Tubbs, Marija Damjanovska, Tatjana Stopar Pintarič
BACKGROUND: The general microscopic characteristics of nerves are described in several textbooks of histology, but the specific microanatomies of most nerves that can be blocked by anesthesiologists are usually less well known. Our objective was to evaluate the 3D reconstruction of nerve fascicles from optical projection tomography images (OPT) and the ability to undertake an internal navigation exploring the morphology in detail, more specifically the fascicular interconnections. METHODS: Median and lingual nerve samples were obtained from five euthanized piglets...
December 2, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29196990/diagnostic-imaging-ultrasound
#20
Stefan C Kane, Su Lynn Khong, Fabricio da Silva Costa
Diagnostic ultrasound imaging, particularly that which includes pulsed wave Doppler interrogation, is a safe, real-time modality by which the risk of developing preeclampsia can be refined, and the effects of established disease can be assessed. This chapter outlines the rationale and technique for Doppler interrogation of the maternal ophthalmic and uterine arteries and grayscale imaging of the maternal optic nerve sheath diameter.
2018: Methods in Molecular Biology
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