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https://www.readbyqxmd.com/read/29338149/injection-pressure-mapping-of-intraneural-vs-perineural-injections-further-lessons-from-cadaveric-studies
#1
Andrzej Krol, Arber Vala, Leonidas Phylactides, Matthew Szarko, Miguel A Reina, Jose de Andrés
BACKGROUND: The aim of the study was to investigate the difference between intraneural and perineural injection pressures in human cadavers. Targeted nerves included the cervical roots, the supraclavicular and infraclavicular brachial plexus, the sciatic-subgluteal nerve and the common peroneal and tibial nerves. METHODS: Ten readings were obtained for each nerve location. 1mL of 0.9% NaCl was injected over ten seconds - deliberately slower than in clinical practice to eliminate the risk of aberrant readings relating to the speed of injection...
January 16, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29336927/efficacy-and-safety-of-sacral-and-percutaneous-tibial-neuromodulation-in-non-neurogenic-lower-urinary-tract-dysfunction-and-chronic-pelvic-pain-a-systematic-review-of-the-literature
#2
REVIEW
Manuela Tutolo, Enrico Ammirati, John Heesakkers, Thomas M Kessler, Kenneth M Peters, Tina Rashid, Karl-Dietrich Sievert, Michele Spinelli, Giacomo Novara, Frank Van der Aa, Dirk De Ridder
CONTEXT: Neuromodulation is considered in patients with non-neurogenic lower urinary tract dysfunction (LUTD) not responsive to conservative treatment. OBJECTIVE: To systematically review the available studies on efficacy and safety of sacral neuromodulation (SNM) and percutaneous tibial nerve stimulation (PTNS) in non-neurogenic LUTDs not responsive to conservative treatments. EVIDENCE ACQUISITION: A literature research was conducted in PubMed/Medline and Scopus, restricted to articles in English, published between January 1998 and June 2017, with at least 20 patients and 6 mo of follow-up...
January 11, 2018: European Urology
https://www.readbyqxmd.com/read/29318854/-effect-of-electroacupuncture-on-intracellular-calcium-ion-concentration-and-expression-of-calcium-calmodulin-dependent-protein-kinase-%C3%A2-in-lumbar-spinal-cord-in-rats-with-neuropathic-pain
#3
Xin-Tian Wu, Wei Liang, Li-Ping Yan, Ling-Ling Wang, Cheng Ma
OBJECTIVE: To observe the changes of intracellular calcium ([Ca2+]i) concentration and expression of calcium/calmodulin dependent protein kinaseⅡ (CaMKⅡ) in spinal dorsal horn neurons of spared nerve injury (SNI) rats, so as to explore its mechanisms underlying improvement of neuropathic pain. METHODS: One hundred and ten SD rats were randomly divided into 5 groups: sham control, model, EA, AP-5 and L-NAME groups. The sham group underwent only a simple separation of the sciatic nerve but without ligation and abscission...
December 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29316033/peripheral-nerves-are-pathologically-small-in-cerebellar-ataxia-neuropathy-vestibular-areflexia-syndrome-canvas-a-controlled-ultrasound-study
#4
Luciana Pelosi, Eoin Mulroy, Ruth Leadbetter, Dean Kilfoyle, Andrew M Chancellor, Stuart Mossman, Laurie Wing, Teddy Y Wu, Richard H Roxburgh
BACKGROUND: Sensory neuronopathy is a cardinal feature of Cerebellar Ataxia Neuropathy Vestibular Areflexia Syndrome (CANVAS). Having observed that two patients with CANVAS had small median and ulnar nerves on ultrasound, we set out to examine this finding systematically in a cohort of patients with CANVAS, and compare them with both healthy controls and a cohort of patients with axonal neuropathy. We have previously reported preliminary findings in seven of these CANVAS patients and seven healthy controls...
January 5, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29313107/treatment-possibilities-for-low-anterior-resection-syndrome-a-review-of-the-literature
#5
REVIEW
Audrius Dulskas, Edgaras Smolskas, Inga Kildusiene, Narimantas E Samalavicius
AIM: Up to 80% of patients after low anterior resection, experience (low) anterior resection syndrome (ARS/LARS). However, there is no standard treatment option currently available. This systemic review aims to summarize treatment possibilities for LARS after surgical treatment of rectal cancer in the medical literature. METHODS: Embase, PubMed, and the Cochrane Library were searched using the terms anterior resection syndrome, low anterior resection, colorectal/rectal/rectum, surgery/operation, pelvic floor rehabilitation, biofeedback, transanal irrigation, sacral nerve stimulation, and tibial nerve stimulation...
January 8, 2018: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/29291297/surgical-repair-of-sciatic-nerve-traumatic-rupture-technical-considerations-and-approaches
#6
Hussam Abou-Al-Shaar, Nam Yoon, Mark A Mahan
Traumatic proximal sciatic nerve rupture poses surgical repair dilemmas. Disruption often causes a large nerve gap after proximal neuroma and distal scar removal. Also, autologous graft material to bridge the segmental defect may be insufficient, given the sciatic nerve diameter. The authors utilized knee flexion to allow single neurorrhaphy repair of a large sciatic nerve defect, bringing healthy proximal stump to healthy distal segment. To avoid aberrant regeneration, the authors split the sciatic nerve into common peroneal and tibial divisions...
January 2018: Neurosurgical Focus
https://www.readbyqxmd.com/read/29291205/topiramate-induced-peripheral-neuropathy-a-case-report-and-review-of-literature
#7
Sherifa Ahmed Hamed
Drug-induced peripheral neuropathy had been rarely reported as an adverse effect of some antiepileptic drugs (AEDs) at high cumulative doses or even within the therapeutic drug doses or levels. We describe clinical and diagnostic features of a patient with peripheral neuropathy as an adverse effect of chronic topiramate (TPM) therapy. A 37-year-old woman was presented for the control of active epilepsy (2010). She was resistant to some AEDs as mono- or combined therapies (carbamazepine, sodium valproate, levetiracetam, oxcarbazepine and lamotrigine)...
December 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/29284194/chronic-calf-pain-caused-by-fibroma-induced-chronic-inflammation-around-the-tibial-and-peroneal-nerves-that-was-misdiagnosed-as-centralized-neuropathic-pain-a-case-report
#8
Park Jiyoung, Ok Seong-Ho, Han Jeong Yeol, Park Miyeong, Seo Eun Hui, Kim Yeon A
INTRODUCTION: The etiology of calf pain varies widely; therefore, it is difficult to diagnose and requires careful history taking and physical examination by primary care unit physicians. Because ultrasonography is easy to perform, cheap, and readily available with physicians during a routine consultation, it is the first choice of modality for the evaluation of calf pain. However, simple inflammation around the nerve should also be considered as a possible etiology. Here we describe a 35-year-old man with chronic pain in the right calf that was actually caused by fibroma-induced chronic inflammation around the tibial and peroneal nerves but misdiagnosed as centralized neuropathic pain...
December 28, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/29277615/persistent-pain-accelerates-xenograft-tumor-growth-of-breast-cancer-in-rat
#9
Jing Li, Yunheng Sun, Gang Ding, Feng Jiang
Pain occurs at all stages of the patients who suffer from cancer. Owing to surgery and bone metastasis, breast cancer patients were usually disturbed by persistent pain. However, the pain-relief-right has not been respected enough in clinical cancer treatment. Whether pain has any adverse effects on cancer development is still unclear. In order to uncover this question, we established two preclinical animal models to explore the effects of pain on the tumor. For the first model, we mimicked neuropathic pain by sciatic nerve ligation on rats with xenograft tumor subcutaneously...
January 22, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29249176/neural-mechanisms-of-strength-increase-after-one-week-motor-imagery-training
#10
Sidney Grosprêtre, Thomas Jacquet, Florent Lebon, Charalambos Papaxanthis, Alain Martin
The neural mechanisms explaining strength increase following mental training by motor imagery (MI) are not clearly understood. While gains are mostly attributed to cortical reorganization, the sub-cortical adaptations have never been investigated. The present study investigated the effects of MI training on muscle force capacity and the related spinal and supraspinal mechanisms. Eighteen young healthy participants (mean age: 22.5 ± 2.6) took part in the experiment. They were distributed into two groups: a control group (n = 9) and an MI training group (n = 9)...
December 17, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/29248698/multiple-time-courses-of-somatosensory-responses-in-human-cortex
#11
P Avanzini, V Pelliccia, G Lo Russo, G A Orban, G Rizzolatti
Here we show how anatomical and functional data recorded from patients undergoing stereo-EEG can be used to decompose the cortical processing following nerve stimulation in different stages characterized by specific topography and time course. Tibial, median and trigeminal nerves were stimulated in 96 patients, and the increase in gamma power was evaluated over 11878 cortical sites. All three nerve datasets exhibited similar clusters of time courses: phasic, delayed/prolonged and tonic, which differed in topography, temporal organization and degree of spatial overlap...
December 14, 2017: NeuroImage
https://www.readbyqxmd.com/read/29238215/electrical-stimulation-of-the-posterior-tibial-nerve-reduces-neuropathic-pain-in-patients-with-polyneuropathy
#12
Ron Dabby, Menachem Sadeh, Ilan Goldberg, Vitaly Finkelshtein
Peripheral neuropathic pain (PNP) is caused by neuronal damage to the peripheral nervous system and usually affects the distal extremities. This open-label study examined the effect of short-term peripheral nerve stimulation (PNS) on individuals with PNP due to polyneuropathy. A total of 12 patients (mean age, 63.0 ± 10.0 years, 41.7% male) with daily bilateral PNP for at least 6 months (mean duration, 7.4 ± 7.8 years) received a total of six direct electrical stimulation therapies to the posterior tibial nerve at 3-4-day intervals...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/29230526/peripheral-nerve-diffusion-tensor-imaging-dti-normal-values-and-demographic-determinants-in-a-cohort-of-60-healthy-individuals
#13
Moritz Kronlage, Véronique Schwehr, Daniel Schwarz, Tim Godel, Lorenz Uhlmann, Sabine Heiland, Martin Bendszus, Philipp Bäumer
OBJECTIVE: To identify demographic determinants of peripheral nerve diffusion tensor imaging (DTI) and to establish normal values for fractional anisotropy (FA), axial diffusivity (AD), radial diffusivity (RD), and mean diffusivity (MD). METHODS: Sixty subjects were examined at 3 Tesla by single-shot DTI. FA, AD, RD, and MD were collected for the sciatic, tibial, median, ulnar, and radial nerve and were correlated with demographic variables. RESULTS: Mean FA of all nerves declined with increasing age (r = -0...
December 11, 2017: European Radiology
https://www.readbyqxmd.com/read/29229422/split-sciatic-nerve-surgery-a-new-microsurgical-model-in-experimental-nerve-repair
#14
Luigi Schiraldi, Lima Sottaz, Srinivas Madduri, Corrado Campisi, Carlo M Oranges, Wassim Raffoul, Daniel F Kalbermatten, Pietro G di Summa
INTRODUCTION: Sciatic experimental surgery in rat often leads to hindlimb autophagy, with considerable ethical and research issues. In this work, the distal part of the sciatic nerve was split following the natural bifurcation between tibial and peroneal branches, before applying regenerative stem cells in a fibrin conduit on the peroneal segment. The new microsurgical model was tested in terms of animal morbidity and consistency of research outcomes, particularly comparing to the standard total sciatic axotomy procedure...
November 28, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29229154/morphofunctional-evaluation-of-end-to-side-neurorrhaphy-through-video-system-magnification
#15
Rui Sergio Monteiro de Barros, Marcus Vinicius Henriques Brito, Marcelo Houat de Brito, Jean Vitor de Aguiar Lédo Coutinho, Renan Kleber Costa Teixeira, Vitor Nagai Yamaki, Felipe Lobato da Silva Costa, Danusa Neves Somensi
BACKGROUND: The surgical microscope is an essential tool for microsurgery. Nonetheless, several promising alternatives are being developed, including endoscopes and laparoscopes with video systems. However, these alternatives have only been used for arterial anastomoses so far. The aim of this study was to evaluate the use of a low-cost video-assisted magnification system in end-to-side neurorrhaphy in rats. MATERIALS AND METHODS: Forty rats were randomly divided into four matched groups: (1) normality (sciatic nerve was exposed but was kept intact); (2) denervation (fibular nerve was sectioned, and the proximal and distal stumps were sutured-transection without repair); (3) microscope; and (4) video system (fibular nerve was sectioned; the proximal stump was buried inside the adjacent musculature, and the distal stump was sutured to the tibial nerve)...
January 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29217500/peripheral-neuropathy-as-a-complication-of-diabetic-ketoacidosis-in-a-child-with-newly-diagnosed-diabetes-type-1-case-report
#16
Marta Baszyńska-Wilk, Marta Wysocka-Mincewicz, Anna Świercz, Jolanta Świderska, Magdalena Marszał, Mieczysław Szalecki
BACKGROUND: Neurological complications of diabetic ketoacidosis are considered to be very serious clinical problem. The most common complication is cerebral edema. However this group includes also less common syndromes such as ischemic or hemorrhagic stroke, cerebral venous and sinus thrombosis or very rare peripheral neuropathy. CASE REPORT: We present a case of 9-year old girl with new onset type 1 diabetes, diabetic ketoacidosis, cerebral edema, multifocal vasogenic brain lesions and lower limbs peripheral paresis...
December 8, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/29205431/anatomic-delineation-of-tarsal-tunnel-innervation-via-ultrasonography
#17
Alvaro Iborra, Manuel Villanueva, Stephen L Barrett, Edgardo Rodriguez-Collazo, Pablo Sanz
OBJECTIVES: High-resolution ultrasonography (US) can play an important role in studying nerves, as it has several advantages. Entrapments of distal tibial nerve branches can be mapped out or diagnosed with selective anesthetic blocks, and US can guide therapeutic procedures, such as radiofrequency ablation and selective infiltrations of specific nerve branches. The aim of this study was to verify that US is an effective method for accurately locating the posterior tibial nerve and its terminal branches, such as the medial calcaneal branch, the first calcaneal branch, and the medial and lateral plantar nerves...
December 4, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29202765/a-novel-technique-for-modified-all-inside-repair-of-bucket-handle-meniscus-tears-using-standard-arthroscopic-portals
#18
Jing Hui Yik, Bryan Thean Howe Koh, Wilson Wang
BACKGROUND: Bucket-handle meniscus tears (BHMT) are often displaced and unstable. The inside-out technique of repairing such tears is currently the gold standard. All-inside repair with meniscal fixators is getting increasingly popular. Shortcomings of the inside-out technique include neurovascular complications, especially saphenous nerve palsy, and retention of a non-resorbable suture which can result in discomfort to patient, granuloma formation, and a foci of infection. Hence, the purpose of this project was to innovate a novel all-inside technique to precisely reduce and fix BHMT while avoiding neurovascular complications and retention of a non-resorbable suture...
December 4, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29197923/a-rare-case-of-an-acute-soleus-arcade-syndrome-complicated-by-a-ganglion-cyst-diagnosis-by-dynamic-ultrasound
#19
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/29196071/percutaneous-tibial-nerve-stimulation-in-the-office-setting-real-world-experience-of-over-100-patients
#20
Evan R Sirls, Kim A Killinger, Judith A Boura, Kenneth M Peters
OBJECTIVE: To examine the outcomes and compliance with percutaneous tibial nerve stimulation (PTNS) for overactive bladder symptoms (OAB). METHODS: Adults that had PTNS from 6/30/2011 to 10/8/2015 were retrospectively reviewed for demographics, co-pay, travel distance, employment status, history, symptoms, and treatments used before, during and after PTNS. Pearson's Chi-square, Fisher's exact, Wilcoxon rank and paired t tests were performed. RESULTS: Of 113 patients (mean age 75 ± 12 years), most were women (65...
November 28, 2017: Urology
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