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https://www.readbyqxmd.com/read/29161621/human-subthalamic-oscillatory-dynamics-following-somatosensory-stimulation
#1
Saskia Elben, Carlos Trenado, Jan Vesper, Alfons Schnitzler, Lars Wojtecki
OBJECTIVE: Electrical median nerve somatosensory stimulation leads to a distinct modulation of cortical oscillations. Initial high frequency and gamma augmentation, as well as modulation of beta and alpha oscillations have been reported. We aimed at investigating the involvement of the subthalamic nucleus in somatosensory processing by means of local field potential recordings, since recordings during passive movements and peripheral somatosensory stimulation have suggested a prominent role...
October 28, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29157843/predictors-of-osteoarthritis-following-operative-treatment-of-medial-tibial-plateau-fractures
#2
Markus Parkkinen, Jan Lindahl, Tatu J Mäkinen, Seppo K Koskinen, Antti Mustonen, Rami Madanat
PURPOSE: To determine factors influencing the development of posttraumatic osteoarthritis (OA) following medial tibial plateau fractures and to evaluate concomitant injuries associated with these fractures. MATERIALS AND METHODS: A chart review of patients with operatively treated medial tibial plateau fractures admitted to our Level I trauma centre from 2002 to 2008 was performed. Of 63 patients, 41 participated in a clinical and radiographic examination. The mean age was 47 years (range 16-78) and the mean follow-up time was 7...
November 14, 2017: Injury
https://www.readbyqxmd.com/read/29156496/sensation-mechanoreceptor-and-nerve-fiber-function-after-nerve-regeneration
#3
Christian Krarup, Birgitta Rosén, Michel Boeckstyns, Allan Ibsen Sørensen, Göran Lundborg, Mihai Moldovan, Simon J Archibald
OBJECTIVE: Sensation is essential for recovery after peripheral nerve injury. However, the relationship between sensory modalities and function of regenerated fibers is uncertain. We have investigated the relationships between touch threshold, tactile gnosis and mechanoreceptor and sensory fiber function after nerve regeneration. METHODS: Twenty-one median or ulnar nerve lesions were repaired by a collagen nerve conduit or direct suture. Quantitative sensory hand function and sensory conduction studies by near-nerve technique including tactile stimulation of mechanoreceptors were followed for 2 years, and results were compared to non-injured hands...
November 20, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/29156469/-efficacy-of-vertical-muscle-transpositions-with-and-without-simultaneous-rectus-muscle-recession-for-unilateral-sixth-nerve-palsy
#4
Andrea M Hedergott, Dana Wild, Julia Fricke, Antje Neugebauer
Background We report results of a modified vertical muscle transposition procedure according to the Hummelsheim principle - with and without simultaneous rectus muscle recession - for unilateral sixth nerve palsy. We examine the influence of the duration of the palsy, preoperative angle of squint and preoperative abductive capacity on surgical results of the procedures. Patients and Methods Retrospective study of 29 consecutive patients with unilateral abducens nerve palsy who underwent surgery between 2001 and 2012...
November 20, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29154980/treatment-of-carpal-tunnel-syndrome-from-ultrasonography-to-ultrasound-surgery
#5
David Petrover, Pascal Richette
Carpal tunnel syndrome is the most common nerve entrapment syndrome. The majority of cases are due to compression or irritation of the median nerve in the carpal canal. It is diagnosed clinically, often being confirmed by an electromyogram, while ultrasonography criteria have become increasingly useful for the diagnosis. Ultrasonography is better tolerated, less expensive, yet just as effective as other diagnostic methods. It provides a good indication of the severity of the condition and it allows anatomical variants to be discerned...
November 15, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/29152002/cadaveric-anatomical-study-of-sural-nerve-where-is-the-safe-area-for-endoscopic-gastrocnemius-recession
#6
REVIEW
Alvin Chin Kwong Tan, Zhi Hao Tang, Muhammad Farhan Bin Mohd Fadil
Purpose: To ascertain in cadavers where the sural nerve crosses the gastro-soleus complex and where the gastrocnemius tendon merges with the Achilles tendon in relation to the calcaneal tuberosities. Methods: Twelve cadaveric lower limbs (6 right and 6 left) were dissected. The distances between the calcaneal tuberosities and the lateral border of the Achilles tendon where the sural nerve crosses from medial to lateral, as well as to the gastrocnemius tendon insertion into the Achilles tendon, were measured...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29148901/glaucoma-in-patients-with-shunt-treated-normal-pressure-hydrocephalus
#7
Pasquale Gallina, Alfonso Savastano, Eleonora Becattini, Simone Orlandini, Antonio Scollato, Stanislao Rizzo, Giulia Carreras, Nicola Di Lorenzo, Berardino Porfirio
OBJECTIVE Changes in the pressure gradient between intraocular and intracranial compartments at the lamina cribrosa level are a possible explanation of normal tension glaucoma (NTG). Shunt-treated normal pressure hydrocephalus (NPH) is a model for testing whether the increase (time from disease onset to CSF shunt placement, i.e., "protection period") and decrease (time from shunt placement to observation, i.e., "exposure period") in intracranial pressure (ICP) are glaucoma protective or risk factors, respectively...
November 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29147744/consistency-in-patient-reported-outcome-measures-after-total-knee-arthroplasty-using-patient-specific-instrumentation-a-5-year-follow-up-of-200-consecutive-cases
#8
Daphne A L Schoenmakers, Martijn G M Schotanus, Bert Boonen, Nanne P Kort
PURPOSE: The purpose of this study was to evaluate the 5-year follow-up results of the first 200 total knee arthroplasties (TKA) performed by one high-volume surgeon, using patient-specific information (PSI). To date, there has been no other research into the mid-term follow-up of TKA performed using PSI. MATERIALS AND METHODS: A total of 184 consecutive patients (200 TKA) were evaluated. Outcome measures included implant survival rate, adverse events, and the following patient-reported outcome measures (PROMs); Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Oxford Knee Score (OKS), Pain Visual Analogue Score (VAS) and EuroQol-5D Score (EQ-5D)...
November 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29143871/head-and-neck-rhabdomyosarcoma-in-children-a-20-year-retrospective-study-at-a-tertiary-referral-center
#9
Sophia Marie Häußler, Carmen Stromberger, Heidi Olze, Georg Seifert, Steffen Knopke, Arne Böttcher
OBJECTIVE: The purpose of this study was to assess rhabdomyosarcomas (RMS) of the head and neck in pediatric patients with regard to clinical presentation, treatment, and survival. METHODS: Data were retrospectively obtained from patient charts with regard to RMS of the head and neck diagnosed between 1996 and 2016 at a tertiary referral center. Clinical course, treatment modalities, and side effects were analyzed. Survival analysis was carried out using the Kaplan-Meier method...
November 16, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29141716/hansen-s-disease-and-rheumatoid-arthritis-crossover-of-clinical-symptoms-a-case-series-of-18-patients-in-the-united-states
#10
Sarah M Labuda, John S Schieffelin, Jeffrey G Shaffer, Barbara M Stryjewska
Hansen's Disease (HD) is a rare, chronic granulomatous infection of the skin and peripheral nerves caused by the noncultivable organism Mycobacterium leprae. Arthritis is the third most common symptom of HD. Subjects with both confirmed HD on skin biopsy and chronic arthritis were identified at the National Hansen's Disease Program (NHDP). We conducted a series of medical chart reviews and extracted and logged personally deidentified data into a database and carried out descriptive analyses. Eighteen of 261 subjects presented to the NDHP with both HD and chronic arthritis between 2001 and 2015...
October 23, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29141373/-a-concentration-response-observation-of-hydromorphone-combined-with-ropivacaine-in-labor-analgesia
#11
Y Y Lu, H Huang, W L Mao, R H Liu, M J Hu, L X Shao, M P Hu, J Li
Objective: To investigate the median effective dose (ED(50)) of hydromorphone and the appropriate concentration of ropivacaine combined with hydromorphone in epidural labor analgesia. Methods: One hundred and forty nulliparous women undergoing labor selected for delivery with epidural analgesia were enrolled in our hospital from January to June 2016. The first of top 50 women received 0.12% ropivacaine plus 20 μg/ml hydromorphone complex solution, then sequential women were used the modified sequential method to determine the ED(50) and ED(95) of hydromorphone...
November 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29140886/safety-of-venipuncture-sites-at-the-cubital-fossa-as-assessed-by-ultrasonography
#12
Kanae Mukai, Yukari Nakajima, Tomotaka Nakano, Manami Okuhira, Aya Kasashima, Rina Hayashi, Misaki Yamashita, Tamae Urai, Toshio Nakatani
OBJECTIVE: The aim of the present observational study was to identify safe and suitable venipuncture sites for nursing in the clinical setting using ultrasonography to measure the depth and cross-sectional area of each superficial vein before and after tourniquet application as well as the distance between each superficial vein and the median nerve or brachial artery. METHODS AND RESULTS: Twenty healthy volunteers (21.8 [0.6] y) were recruited. The visible rate of each superficial vein before and after tourniquet application was 65% for the basilic vein, 90% to 95% for the median cubital vein, and 65% to 80% for the cephalic vein...
November 15, 2017: Journal of Patient Safety
https://www.readbyqxmd.com/read/29138631/sarc006-phase-ii-trial-of-chemotherapy-in-sporadic-and-neurofibromatosis-type-1-associated-chemotherapy-naive-malignant-peripheral-nerve-sheath-tumors
#13
Christine S Higham, Seth M Steinberg, Eva Dombi, Arie Perry, Lee J Helman, Scott M Schuetze, Joseph A Ludwig, Arthur Staddon, Mohammed M Milhem, Daniel Rushing, Robin L Jones, Michael Livingston, Stewart Goldman, Christopher Moertel, Lars Wagner, David Janhofer, Christina M Annunziata, Denise Reinke, Lauren Long, David Viskochil, Larry Baker, Brigitte C Widemann
Background: Worse chemotherapy response for neurofibromatosis type 1- (NF1-) associated compared to sporadic malignant peripheral nerve sheath tumors (MPNST) has been reported. Methods: We evaluated the objective response (OR) rate of patients with AJCC Stage III/IV chemotherapy-naive NF1 MPNST versus sporadic MPNST after 4 cycles of neoadjuvant chemotherapy, 2 cycles of ifosfamide/doxorubicin, and 2 cycles of ifosfamide/etoposide. A Simon optimal two-stage design was used (target response rate 40%)...
2017: Sarcoma
https://www.readbyqxmd.com/read/29137727/the-quantitative-evaluation-of-the-relationship-between-the-forces-applied-to-the-palm-and-carpal-tunnel-pressure
#14
Kazutoshi Kubo, Yu-Shiuan Cheng, Boran Zhou, Kai-Nan An, Steven L Moran, Peter C Amadio, Xiaoming Zhang, Chunfeng Zhao
Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy occurring in upper limbs. The etiology, however, has not been fully understood yet. Median nerve could be compressed by either increase of carpal tunnel pressure (CTP) or direct impingement when it is forced toward to carpal ligament especially in wrist flexion leading to CTS development. Thus, the increase of carpal tunnel pressure is considered an important role in CTS development. It has been identified that forces applied to the palm would affect the CTP...
November 4, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29136135/sarin-exposures-in-a-cohort-of-british-military-participants-in-human-experimental-research-at-porton-down-1945-1987
#15
Thomas J Keegan, Lucy M Carpenter, Claire Brooks, Toby Langdon, Katherine M Venables
Background: The effects of exposure to chemical warfare agents in humans are topical. Porton Down is the UK's centre for research on chemical warfare where, since WWI, a programme of experiments involving ~30000 participants drawn from the UK armed services has been undertaken. Objectives: Our aim is to report on exposures to nerve agents, particularly sarin, using detailed exposure data not explored in a previous analysis. Methods: In this paper, we have used existing data on exposures to servicemen who attended the human volunteer programme at Porton Down to examine exposures to nerve agents in general and to sarin in particular...
November 9, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/29132477/elective-division-of-ilioinguinal-nerve-in-inguinal-hernioplasty-remedy-for-the-morbid-postoperative-inguinal-pain
#16
Muhammad Danish Muneeb, Mirza Aga Naushad Baig
OBJECTIVE: To compare the postoperative pain in inguinal hernioplasty, by preserving versus wide elective division of ilioinguinal nerve. STUDY DESIGN: Randomized controlled trial. PLACE AND DURATION OF STUDY: Surgical Department, Civil Hospital, Karachi, from January till August 2015. METHODOLOGY: All patients of either gender above 15 years of age, undergoing mesh repair for unilateral, reducible inguinal hernia, were included...
November 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29131277/communications-of-the-median-nerve-in-fetuses
#17
Alev Bobuş Kara, Özlem Elvan, Nail Can Öztürk, Ahmet Hakan Öztürk
BACKGROUND: Communications between the median, ulnar and musculocutaneous nerves in the arm, forearm and hand were reported in adult cadaveric and electrophysiological studies. These communicant branches may lead conflicting clinical and electrodiagnostic outcomes. While there are many studies on adult patients or cadavers, there is poor regarding fetuses. The present study was conducted to examine the frequencies of these communications and their coexistences in human fetuses. MATERIALS AND METHODS: Anterior aspect of the forearms of 50 fetuses (29 females, 20 males, and 1 unknown) were dissected bilaterally (totally 100 sides) for this purpose...
November 13, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29131131/gamma-knife-stereotactic-radiosurgery-for-the-treatment-of-primary-and-metastatic-ocular-malignancies
#18
Andrea L H Arnett, Margaret M Reynolds, Jose S Pulido, Ian F Parney, Nadia N Laack
BACKGROUND: Gamma knife radiosurgery (GKR) can be used for precise targeting of malignant lesions of the CNS when brachytherapy is not an appropriate option. OBJECTIVES: This study reports treatment technique, efficacy, and radiation-induced adverse effects in patients with primary and metastatic ocular lesions treated with Leksell GKR. METHODS: A retrospective, single-institution review was conducted of 28 patients with primary or metastatic ocular disease, treated from 2000 to 2014...
November 4, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/29130498/peripheral-nerve-ultrasound-in-friedreich-s-ataxia
#19
Eoin Mulroy, Luciana Pelosi, Ruth Leadbetter, Purwa Joshi, Miriam Rodrigues, Stuart Mossman, Dean Kilfoyle, Richard Roxburgh
Introduction Sensory impairment in Friedreich's ataxia (FRDA) is generally accepted as being due to a ganglionopathy. The degree of contribution from axonal pathology remains a matter of debate. Nerve ultrasound may be able to differentiate these processes. Methods The ultrasound cross-sectional area of median, ulnar, tibial and sural nerves of 8 patients with FRDA was compared with 8 age- and gender-matched healthy controls and with reference values in our population. Results The nerves of the patients with FRDA were significantly larger than healthy controls' at all upper limb sites (p< 0...
November 11, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/29129802/treatment-of-paget-schroetter-syndrome-with-a-three-stage-approach-including-thoracoscopic-rib-resection-at-the-second-stage
#20
Osman Mahmoud, Eero Sihvo, Jari Räsänen, Leena Vikatmaa, Pirkka Vikatmaa, Maarit Venermo
OBJECTIVE: Young, active persons may suffer lifelong consequences of subclavian vein thrombosis, but the best treatment options remain unclear. On introduction of more active pharmacomechanical thrombus removal and thoracoscopic rib resection in our institution, we planned a diagnostic and treatment protocol and aimed to analyze the early, midterm, and intermediate-term results. METHODS: The study included 72 patients who were diagnosed with an upper limb deep venous thrombosis and underwent phlebography between 2006 and 2013...
November 9, 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
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