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https://www.readbyqxmd.com/read/28819600/extensively-drug-resistant-tuberculosis-of-the-lumbar-spine-in-a-six-year-old-child-a-case-report
#1
Siddharth Sanjay Shah, Aakanksha Arvind Goregaonkar, Arvind Balkrishna Goregaonkar
INTRODUCTION: The emergence of extensively drug-resistant tuberculosis (XDR-TB) is a challenging paradigm shift faced by the TB control programs worldwide today. The treatment is further compounded with unique management difficulties faced in pediatric patients. Treatment of XDR-TB requires prolonged chemotherapy with second-line drugs which offer lesser potency and increased risk of drug-related side effects. We present a case of spinal XDR-TB in a child, managed with extended second-line antitubercular chemotherapy (ATT)...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28809679/automatic-localization-of-the-needle-target-for-ultrasound-guided-epidural-injections
#2
Mehran Pesteie, Victoria Lessoway, Purang Abolmaesumi, Robert N Rohling
Accurate identification of the needle target is crucial for effective epidural anesthesia. Currently, epidural needle placement is administered by a manual technique, relying on the sense of feel, which has a significant failure rate. Moreover, misleading the needle may lead to inadequate anesthesia, post dural puncture headaches and other potential complications. Ultrasound offers guidance to the physician for identification of the needle target, but accurate interpretation and localization remain challenges...
August 11, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28805566/botulinum-toxin-therapy-for-nonmotor-aspects-of-parkinson-s-disease
#3
Jarosław Sławek, Mariusz Madaliński
The medical treatment of Parkinson's disease (PD) is symptomatic both in terms of motor and nonmotor aspects. The nonmotor symptoms therapy should be taken into account as many of them negatively influence the quality of life and are treatable. Botulinum neurotoxin (BoNT) offers effective treatment for drooling and bladder dysfunctions and alternative treatment for constipation and pain related to parkinsonism. BoNT for drooling is probably the best-documented therapy for nonmotor symptoms by clinical trials...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28797833/percutaneous-rupture-of-zygapophyseal-joint-synovial-cysts-a-prospective-assessment-of-nonsurgical-management
#4
Gregory E Lutz, Michael R Nicoletti, George E Cyril, Julian R Harrison, Christopher Lutz, Jennifer L Solomon, Paul M Cooke, James F Wyss, Richard J Herzog, Peter J Moley
BACKGROUND: Although lumbar zygapophyseal joint synovial cysts are fairly well recognized, they are an uncommon cause of lumbosacral radicular pain. Non-operative treatments include percutaneous aspiration of the cysts under computed tomography or fluoroscopic guidance with a subsequent corticosteroid injection. However, there are mixed results in terms of long-term outcomes and cyst reoccurrence. This study prospectively evaluates percutaneous ruptures of zygapophyseal joint (Z-joint) synovial cysts for the treatment of lumbosacral radicular pain...
August 7, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28796131/beyond-ultrasound-guidance-for-regional-anesthesiology
#5
De Q Tran, André P Boezaart, Joseph M Neal
Despite its popularity, ultrasound (US)-guided regional anesthesiology is associated with significant limitations. The latter can be attributed to either the US machine (ie, decreased ability to insonate deep neural structures, as well as the thoracic spine) or the operator. Shortcomings associated with the operator can be explained by errors in perception (ie, ambiguous criteria for needle/catheter tip-to-nerve proximity and subparaneural local anesthetic injection) or interpretation. Perhaps the greatest confusion afflicting US-guided regional anesthesiology originates from an intellectual misconception pertaining to its application...
September 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28795547/-multiple-vertebral-hemangiomas-treated-simultaneously-with-cyberknife%C3%A2-technology
#6
R Harkati, M Baré, A Gulyban, D Dechambre, P Berkovic, P A Coucke
Haemangioma are benign, vasoformative lesions of endothelial origin. A minority of patients with a vertebral location are symptomatic with neck or back pain. Neurological deficits due to spinal cord compression are rare and mostly observed at the thoracic and upper lumbar spine. Treatment is indicated in case of relevant symptomatology. Several invasive treatment modalities exist such as surgery and intralesional injections, but radiotherapy is the most common treatment for painful lesions. We report a case of a patient with symptomatic bifocal vertebral haemangioma (d9, l3) associated with dorsal and lumbar pain treated simultaneously using a cyberknife® vsi system, with a significant reduction of pain and a limited toxicity...
July 2017: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28789838/comparison-of-biochemical-and-cytotoxic-activities-of-extracts-obtained-from-dorsal-spines-and-caudal-fin-of-adult-and-juvenile-non-native-caribbean-lionfish-pterois-volitans-miles
#7
Aránzazu Sáenz, Natalia Ortiz, Bruno Lomonte, Alexandra Rucavado, Cecilia Díaz
Pterois volitans/miles lionfish (adult and juvenile) dorsal spines and caudal fin extracts were compared in their general composition, enzymatic activities and hemolytic and cytotoxic effects on bovine aortic endothelial cells and murine myoblasts, to distinguish between the activities present in the venom and epidermal mucus. Intradermal and intramuscular injections were also administered in mice to determine in vivo effects. This work shows that crude venom of Caribbean species of lionfish, present in dorsal spines, induces several in vitro effects including hemolysis, weak cytotoxicity, proteolytic and hyaluronidase activities, whereas in vivo, it is not hemorrhagic nor myotoxic, but causes edema, plasma extravasation and a thrombotic-associated lesion on the skin...
August 5, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28768195/attenuation-of-synaptic-potentials-in-dendritic-spines
#8
Taekyung Kwon, Masayuki Sakamoto, Darcy S Peterka, Rafael Yuste
Dendritic spines receive the majority of excitatory inputs in many mammalian neurons, but their biophysical properties and exact role in dendritic integration are still unclear. Here, we study spine electrical properties in cultured hippocampal neurons using an improved genetically encoded voltage indicator (ArcLight) and two-photon glutamate uncaging. We find that back-propagating action potentials (bAPs) fully invade dendritic spines. However, uncaging excitatory post-synaptic potentials (uEPSPs) generated by glutamate photorelease, ranging from 4 to 27 mV in amplitude, are attenuated by up to 4-fold as they propagate to the parent dendrites...
August 1, 2017: Cell Reports
https://www.readbyqxmd.com/read/28767569/visual-loss-due-to-optic-nerve-infarction-and-central-retinal-artery-occlusion-after-spine-surgery-in-the-prone-position-a-case-report
#9
Soo Hee Lee, Inyoung Chung, Dae Seob Choi, Il-Woo Shin, Sunmin Kim, Sebin Kang, Ji-Yoon Kim, Young-Kyun Chung, Ju-Tae Sohn
RATIONALE: Visual loss after spine surgery in the prone position is a serious complication. Several cases of central retinal artery occlusion with ophthalmoplegia after spine surgery have been reported in patients with ophthalmic arteries fed by the internal carotid artery (ICA) in a normal manner. PATIENT CONCERNS: A 74-year-old man developed visual loss after undergoing a spinal decompression and fusion operation in the prone position that lasted approximately 5 hours...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28765273/cross-sex-testosterone-therapy-in-ovariectomized-mice-addition-of-low-dose-estrogen-preserves-bone-architecture
#10
Laura G Goetz, Ramanaiah Mamillapalli, Maureen J Devlin, Amy E Robbins, Masoumeh Majidi-Zolbin, Hugh S Taylor
Cross-sex hormone therapy (XHT) is widely used by transgender people to alter secondary sex characteristics to match their desired gender presentation. Here we investigate the long-term effects of XHT on bone health, using a murine model. Female mice underwent ovariectomy at either 6 or 10 weeks, and began weekly testosterone or vehicle injections. Dual-energy X-ray Absorptiometry (DXA) was performed to measure bone mineral density (BMD) and microCT was performed to compare femoral cortical and trabecular bone architecture...
August 1, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28760030/cervical-vertebroplasty-for-osteolytic-metastases-as-a-minimally-invasive-therapeutic-option-in-oncological-surgery-outcome-in-14-cases
#11
Martin Stangenberg, Lennart Viezens, Sven O Eicker, Malte Mohme, Klaus C Mende, Marc Dreimann
OBJECTIVE The treatment of cervical spinal metastases represents a controversial issue regarding the type, extent, and invasiveness of interventions. In the lumbar and thoracic spine, kypho- and vertebroplasties have been established as minimally invasive procedures for patients with metastases to the vertebral bodies and without neurological deficit. These procedures show good results with respect to pain reduction and low complication rates. However, limited data are available for kypho- and vertebroplasties for cervical spinal metastases...
August 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28757327/differential-electrophysiological-and-morphological-alterations-of-thalamostriatal-and-corticostriatal-projections-in-the-r6-2-mouse-model-of-huntington-s-disease
#12
Anna Parievsky, Cindy Moore, Talia Kamdjou, Carlos Cepeda, Charles K Meshul, Michael S Levine
Huntington's disease (HD) is a fatal genetic disorder characterized by cell death of medium-sized spiny neurons (MSNs) in the striatum, traditionally attributed to excessive glutamate inputs and/or receptor sensitivity. While changes in corticostriatal projections have typically been studied in mouse models of HD, morphological and functional alterations in thalamostriatal projections have received less attention. In this study, an adeno-associated virus expressing channelrhodopsin-2 under the calcium/calmodulin-dependent protein kinase IIα promoter was injected into the sensorimotor cortex or the thalamic centromedian-parafascicular nuclear complex in the R6/2 mouse model of HD, to permit selective activation of corticostriatal or thalamostriatal projections, respectively...
July 27, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28756254/evaluation-of-chlorpyrifos-effects-alone-and-combined-with-lipopolysaccharide-stress-on-dna-integrity-and-immune-responses-of-the-three-spined-stickleback-gasterosteus-aculeatus
#13
Adrien Marchand, Jean-Marc Porcher, Cyril Turies, Edith Chadili, Olivier Palluel, Patrick Baudoin, Stéphane Betoulle, Anne Bado-Nilles
Organism immune defences might be weakened by pollutants, largely detected in aquatic ecosystems, leading to the facilitation for opportunistic pathogens to infect organisms. In this context, destabilization of fish non-specific immune parameters and erythrocyte DNA integrity was tested, on a model fish species, the three-spined stickleback (Gasterosteus aculeatus), after exposure to chlorpyrifos (CPF). Alone, pesticide exposure induced a genotoxic potential (chlorpyrifos at 1.75 and 0.88µg/L) in addition to a decrease in phagocytosis capacity and a stimulation of respiratory burst...
July 27, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28748319/diverse-action-of-repeated-corticosterone-treatment-on-synaptic-transmission-neuronal-plasticity-and-morphology-in-superficial-and-deep-layers-of-the-rat-motor-cortex
#14
Joanna Kula, Anna Gugula, Anna Blasiak, Bartosz Bobula, Joanna Danielewicz, Alan Kania, Grzegorz Tylko, Grzegorz Hess
One of the adverse effects of prolonged stress in rats is impaired performance of skilled reaching and walking tasks. The mechanisms that lead to these abnormalities are incompletely understood. Therefore, we compared the effects of twice daily repeated corticosterone injections for 7 days on miniature excitatory postsynaptic currents (mEPSCs), as well as on synaptic plasticity and morphology of layers II/III and V pyramidal neurons of the primary motor cortex (M1) of male Wistar rats. Corticosterone treatment resulted in increased frequency, but not amplitude, of mEPSCs in layer II/III neurons accompanied by increased complexity of the apical part of their dendritic tree, with no changes in the density of dendritic spines...
July 27, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28744321/an-18-f-positron-emitting-fluorescent-cerebrospinal-fluid-probe-for-imaging-damage-to-the-brain-and-spine
#15
Harikrishna Kommidi, Hua Guo, Nandi Chen, Dohyun Kim, Bin He, Amy P Wu, Omer Aras, Richard Ting
Fluorescein is modified to bear (18)F so that it can act as both a positron emitter, and a fluorophore, allowing detection by positron emission tomography (PET), scintillation, and fluorescent imaging (FL). [(18)F]-2 is injected into the intrathecal space of rats and used to observe the cerebrospinal fluid (CSF) that bathes the brain and spine. Injury in three different applications is visualized with [(18)F]-2: 1) detection of a 0.7 mm paranasal-sinus CSF leak (CSFL); 2) detection of 0.5 mm puncture damage to the thoracic spine (acute spinal cord injury); and 3) detection of intracerebral hemorrhage/edema because of traumatic brain injury...
2017: Theranostics
https://www.readbyqxmd.com/read/28736354/novel-technique-of-percutaneous-fat-graft-for-repair-of-persistent-large-pseudomeningocele
#16
Gabrielle Santangelo, Tyler Schmidt, Mithra Gonzalez, Per-Lennart Westesson, Howard Silberstein
BACKGROUND: Pseudomeningocele is an uncommon but problematic complication in lumbar spine surgery. Initial conservative measures are frequently successful but persistence requires additional management. The current surgical approach can involve a range of techniques, including blood patches, hydrogel/fibrin sealants, drains, open surgical repair of the dura or a combination of the above if symptoms persist. This report demonstrates a novel technique for repair using a percutaneous approach to deliver an autologous fat graft into the pseudomeningocele...
July 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28727717/percutaneous-vertebroplasty-for-primary-non-hodgkin-s-lymphoma-of-the-thoracic-spine-case-report-and-review-of-the-literature
#17
Pu Jia, JinJun Li, Hao Chen, Li Bao, Fei Feng, Hai Tang
Primary non-Hodgkin's lymphoma of the vertebra is rare in the spine of the elderly. The clinical presentation and radiological features are unspecific, which make it more difficult for diagnosis. We report a case of a 79-year-old woman complaining of serious backache without any injury. The magnetic resonance imaging (MRI) showed invasion of the fifth thoracic vertebra with the posterior vertebral body wall defect. There was a high suspicion that the patient had a metastatic tumor of the vertebra. A percutaneous vertebroplasty was performed under fluoroscopic guidance, which was used to treat the osteoporotic vertebral compression fracture, vertebral metastases, verte-bral hemangioma, and multiple myeloma...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28727709/transforaminal-percutaneous-endoscopic-discectomy-and-foraminoplasty-after-lumbar-spinal-fusion-surgery
#18
Jian-Jun Wu, Hui-Zhen Chen, Changkun Zheng
BACKGROUND: The most common causes of pain following lumbar spinal fusions are residual herniation, or foraminal fibrosis and foraminal stenosis that is ignored, untreated, or undertreated. The original surgeon may advise his patient that nothing more can be done in his opinion that the nerve was visually decompressed by the original surgery. Post-operative imaging or electrophysiological assessment may be inadequate to explain all the reasons for residual or recurrent symptoms. Treatment of failed lumbar spinal fusions by repeat traditional open revision surgery usually incorporates more extensive decompression causing increased instability and back pain...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28727707/continuing-anti-thrombotic-medication-during-low-to-intermediate-risk-spinal-procedures-a-retrospective-evaluation
#19
Noud van Helmond, Wesley Day, Kenneth B Chapman
BACKGROUND: The current American Society of Regional Anesthesia (ASRA) guidelines recommend discontinuing anti-thrombotic therapy prior to any interventional spine procedures to decrease the incidence of bleeding complications. However, discontinuing anti-thrombotics may pose considerable danger in terms of cerebrovascular and cardiovascular events. Recent evidence suggests that some spinal interventions may still be performed safely with anti-thrombotics on board and some practitioners thus elect to continue certain anti-thrombotics for these procedures...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28727597/bilateral-continuous-erector-spinae-plane-block-contributes-to-effective-postoperative-analgesia-after-major-open-abdominal-surgery-a-case-report
#20
Carlos Eduardo Restrepo-Garces, Ki Jinn Chin, Patricia Suarez, Alejandro Diaz
The erector spinae plane (ESP) block is a regional anesthetic technique involving local anesthetic injection in a paraspinal plane deep to the erector spinae muscle. Originally described for thoracic analgesia when performed at the T5 transverse process, the ESP block can provide abdominal analgesia if performed at lower thoracic levels because the erector spinae muscles extend to the lumbar spine. A catheter inserted into this plane can extend analgesic duration and can be an alternative to epidural analgesia...
July 19, 2017: A & A Case Reports
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