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https://www.readbyqxmd.com/read/28068970/quadriplegia-caused-by-an-epidural-abscess-occurring-at-the-same-level-of-cervical-destructive-spondyloarthropathy-a-case-report
#1
Jun-Seok Lee, Ji-Hyun Ryu, Jong-Tae Park, Ki-Won Kim
BACKGROUND: Destructive spondyloarthropathy (DSA) is one of the major complications in patients undergoing long-term hemodialysis. To the best of our knowledge, an epidural abscess occurring at the level of preexisting cervical DSA has not been well described in the literature. We report a unique case of quadriplegia caused by an epidural abscess occurring at the same level of preexisting cervical DSA. CASE PRESENTATION: A 49-year-old woman was transferred to our emergency department with 5 days of sepsis, drowsy mental status, and quadriplegia below the C5 level...
January 10, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28067856/pruning-based-sparse-recovery-for-electrocardiogram-reconstruction-from-compressed-measurements
#2
Jaeseok Lee, Kyungsoo Kim, Ji-Woong Choi
Due to the necessity of the low-power implementation of newly-developed electrocardiogram (ECG) sensors, exact ECG data reconstruction from the compressed measurements has received much attention in recent years. Our interest lies in improving the compression ratio (CR), as well as the ECG reconstruction performance of the sparse signal recovery. To this end, we propose a sparse signal reconstruction method by pruning-based tree search, which attempts to choose the globally-optimal solution by minimizing the cost function...
January 7, 2017: Sensors
https://www.readbyqxmd.com/read/28065376/dual-energy-ct-virtual-non-calcium-technique-for-detection-of-bone-marrow-edema-in-patients-with-vertebral-fractures-a-prospective-feasibility-study-on-a-single-source-volume-ct-scanner
#3
T Diekhoff, K G Hermann, M Pumberger, B Hamm, M Putzier, M Fuchs
OBJECTIVES: Dual-energy computed tomography (DECT) is a recent development for detecting bone marrow edema (BME) in patients with vertebral compression fractures. The aim of this pilot study was to determine the reliability of single-source DECT in detecting vertebral BME using magnetic resonance imaging (MRI) as standard of reference. MATERIALS AND METHODS: Nine patients with radiographic thoracic or lumbar vertebral compression fractures underwent both, DECT on a 320-row single-source scanner and 1...
February 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28062179/effects-of-non-focused-microbubble-enhanced-and-high-intensity-focused-ultrasound-on-hemostasis-in-a-rabbit-model-of-liver-trauma
#4
Da-Wei Zhao, Meng Tian, Jian-Zhong Zou, Yuan-Yi Zheng, Tao Li
Uncontrolled hemorrhage after trauma to the liver can lead to death. The present study compared the effects of non-focused microbubble-enhanced ultrasound and high-intensity focused ultrasound on hepatic hemostasis in the injured liver. Blood perfusion level, serum liver enzyme levels and the aspartate transaminase/alanine transaminase ratio differed between the two types of treatment (all p values < 0.05). Hepatic cells in the microbubble-enhanced ultrasound group exhibited edema and compressed the hepatic sinus and blood vessels in the portal area...
January 3, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28054062/stretching-induced-wrinkling-in-plastic-rubber-composites
#5
Junyu Yang, Sameer Damle, Spandan Maiti, Sachin S Velankar
We examine the mechanics of three-layer composite films composed of an elastomeric layer sandwiched between two thin surface layers of plastic. Upon stretching and releasing such composite films, they develop a highly wrinkled surface texture. The mechanism for this texturing is that during stretching, the plastic layers yield and stretch irreversibly whereas the elastomer stretches reversibly. Thus upon releasing, the plastic layers buckle due to compressive stress imposed by the elastomer. Experiments are conducted using SEPS elastomer and 50 micron thick LLDPE plastic films...
January 5, 2017: Soft Matter
https://www.readbyqxmd.com/read/28051341/effects-of-compression-garment-pressure-on-recovery-from-strenuous-exercise
#6
Jessica Hill, Glyn Howatson, Ken van Someren, David Gaze, Hayley Legg, Jack Lineham, Charles Pedlar
Compression garments are frequently used to facilitate recovery from strenuous exercise. Purpose To identify the effects of two different grades of compression garment on recovery indices following strenuous exercise. Methods Forty five recreationally active participants (n=26 males and n=19 females) completed an eccentric exercise protocol consisting of 100 drop jumps. Following the exercise protocol participants were matched for body mass and randomly but equally assigned to either a high (HI) compression pressure group, a low (LOW) compression pressure group, or a sham ultrasound group (SHAM)...
January 4, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28045828/bilateral-malar-reconstruction-using-patient-specific-polyether-ether-ketone-implants-in-treacher-collins-syndrome-patients-with-absent-zygomas
#7
David C G Sainsbury, Alan George, Christopher R Forrest, John H Phillips
The authors performed bilateral malar reconstruction using polyether ether ketone implants in 3 patients with Treacher-Collins syndrome with absent, as opposed to hypoplastic, zygomata. These patient-specific implants were fabricated using computed-aided design software reformatted from three-dimensional bony preoperative computed tomography images. The first time the authors performed this procedure the implant compressed the globe resulting in temporary anisocoria that was quickly recognized intraoperatively...
December 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28038405/comprehensive-mechanical-characterization-of-pla-fabric-combined-with-pcl-to-form-a-composite-structure-vascular-graft
#8
Chaojing Li, Fujun Wang, Graeham Douglas, Ze Zhang, Robert Guidoin, Lu Wang
Vascular grafts made by tissue engineering processes are prone to buckling and twisting, which can impede blood flow and lead to collapse of the vessel. These vascular conduits may suffer not only from insufficient tensile strength, but also from vulnerabilities related to compression, torsion, and pulsatile pressurization. Aiming to develop a tissue engineering-inspired blood conduit, composite vascular graft (cVG) prototypes were created by combining a flexible polylactic acid (PLA) knitted fabric with a soft polycaprolactone (PCL) matrix...
December 15, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28033684/cellular-reactions-and-compensatory-tissue-re-organization-during-spontaneous-recovery-after-spinal-cord-injury-in-neonatal-mice
#9
Rishab S Chawla, Mark Züchner, Maria Mastrangelopoulou, François M Lambert, Joel C Glover, Jean-Luc Boulland
Following incomplete spinal cord injuries, neonatal mammals display a remarkable degree of behavioral recovery. Previously, we have demonstrated in neonatal mice a wholesale re-establishment and reorganization of synaptic connections from some descending axon tracts (Boulland et al., 2013). To assess the potential cellular mechanisms contributing to this recovery, we have here characterized a variety of cellular sequelae following thoracic compression injuries, focusing particularly on cell loss and proliferation, inflammation and reactive gliosis, and the dynamics of specific types of synaptic terminals...
December 29, 2016: Developmental Neurobiology
https://www.readbyqxmd.com/read/28032743/sustained-local-release-of-ngf-from-a-chitosan-sericin-composite-scaffold-for-treating-chronic-nerve-compression
#10
Lei Zhang, Wen Yang, Kaixiong Tao, Yu Song, Hongjian Xie, Jian Wang, Xiaolin Li, Xiaoming Shuai, Jinbo Gao, Panpan Chang, Guobin Wang, Zheng Wang, Lin Wang
Chronic nerve compression (CNC), such as carpal tunnel syndrome (CTS), is a common cause of peripheral nerve dysfunction and chronic peripheral nerve pain. Current available treatments for CNC are ineffective as they usually aim to alleviate symptoms at the acute phase with limited capability towards restoring injured nerve function. New approaches for effective recovery of CNC injury are highly desired. Here we report for the first time a tissue-engineered approach for the repair of CNC. A genipin cross-linked chitosan-sericin 3D scaffold for delivering nerve growth factor (NGF) was designed and fabricated...
December 29, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28032702/thoracic-endoscopic-assisted-mini-open-surgery-for-thoracic-and-thoracolumbar-spinal-cord-compression
#11
Bao-Shan Xu, Hai-Wei Xu, Qiu-Ming Yuan, Yue Liu, Qiang Yang, Hong-Feng Jiang, Dong-Bin Wang, Ning Ji, Xin-Long Ma, Yang Zhang
Intervertebral disc herniation is a common cause of spinal cord compression, especially for the thoracic and thoracolumbar spinal cord, which has limited buffer space in the spinal canal. Spinal cord compression usually causes decreased sensation and paralysis of limbs below the level of compression, urinary and fecal incontinence, and/or urinary retention, which brings great suffering to the patients and usually requires surgical intervention. Thoracotomy or abdominothoracic surgery is usually performed for the thoracolumbar cord compression caused by hard intervertebral disc herniation...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28025353/imaging-determinants-of-clinical-effectiveness-of-lumbar-transforaminal-epidural-steroid-injections
#12
Timothy P Maus, Christine A El-Yahchouchi, Jennifer R Geske, Rickey E Carter, Timothy J Kaufmann, John T Wald, Felix E Diehn
OBJECTIVE: To examine associations between imaging characteristics of compressive lesions and patient outcomes after lumbar transforaminal epidural steroid injections (TFESIs) stratified by steroid formulation (solution versus suspension). DESIGN/SUBJECTS: Retrospective observational study, academic radiology practice. A 516-patient sample was selected from 2,634 consecutive patients receiving lumbar TFESI for radicular pain. METHODS: The advanced imaging study(s) preceding sampled TFESI were reviewed...
December 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28013322/a-giant-pancreatic-pseudocyst-treated-by-open-cystogastrostomy
#13
Artur Pasternak, Przemysław Wawok, Piotr Richter
We report a case of a giant pancreatic pseudocyst in a 33-year-old woman presenting with abdominal pain, loss of appetite and abdominal distension. CT scans revealed a giant pancreatic pseudocyst measuring 10.3 cm × 9.6 cm × 9.3 cm anteroposteriorly, with significant compression of the stomach. An open retrogastric cystogastrostomy was performed through a midline incision, and 3 L of fluid was drained from the pseudocyst. Recovery has been uneventful.
2016: Folia Medica Cracoviensia
https://www.readbyqxmd.com/read/28013058/leg-compressions-improve-ventilatory-efficiency-while-reducing-peak-and-post-exercise-blood-lactate-but-does-not-improve-perceived-exertion-exercise-economy-or-aerobic-exercise-capacity-in-endurance-trained-runners
#14
Eric Rivas, John D Smith, Nestor W Sherman
PURPOSE: The objective of this study was to determine if leg compressions would alter cardiorespiratory and perceived exertion measures during rest, submaximal and maximal exercise in endurance-trained runners. METHOD: Thirteen young, endurance trained runners (10 males, 20.9±3y, 58.9±5.7mlkgmin(-1)) completed a randomized design, leg compressions and non-compression control condition. The incremental graded exercise test consisted of baseline rest and submaximal intensities at 23%, 70%, 75%, 85% and then a progressive increase to 100% VO2max...
December 21, 2016: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28011395/salvianolic-acid-a-ameliorates-the-integrity-of-blood-spinal-cord-barrier-via-mir-101-cul3-nrf2-ho-1-signaling-pathway
#15
De-Shui Yu, Yan-Song Wang, Yun-Long Bi, Zhan-Peng Guo, Ya-Jiang Yuan, Song-Ming Tong, Rui-Chao Su, Li-Hao Ge, Jian Wang, Ya-Li Pan, Ting-Ting Guan, Yang Cao
Salvianolic acid A (Sal A), a bioactive compound isolated from the Chinese medicinal herb Danshen, is used for the prevention and treatment of cardiovascular diseases. However, the protective function of Sal A on preserving the role of blood-spinal cord barrier (BSCB) after spinal cord injury (SCI) is unclear. The present study investigated the effects and mechanisms of Sal A (2.5, 5, 10 mg/kg, i.p.) on BSCB permeability at different time-points after compressive SCI in rats. Compared to the SCI group, treatment with Sal A decreased the content of the Evans blue in the spinal cord tissue at 24 h post-SCI...
December 20, 2016: Brain Research
https://www.readbyqxmd.com/read/28003669/neurological-recovery-after-posterior-spinal-surgery-in-patients-with-metastatic-epidural-spinal-cord-compression
#16
Noriyuki Watanabe, Yoshihisa Sugimoto, Masato Tanaka, Tetsuro Mazaki, Shinya Arataki, Tomoyuki Takigawa, Masaki Kataoka, Toshiyuki Kunisada, Toshifumi Ozaki
Metastatic epidural spinal cord compression (MESCC) is a common complication in patients with a malignant tumor, but it is difficult to decide the proper time to perform the necessary surgery. Here we analyzed the prognostic factors for postoperative walking ability. We retrospectively reviewed the cases of 112 MESCC patients treated surgically at our institute and divided them into ambulatory (n= 88) and non-ambulatory (n=24) groups based on their American Spinal Injury Association (ASIA) Impairment Scale grades at the final follow-up...
December 2016: Acta Medica Okayama
https://www.readbyqxmd.com/read/27996218/association-of-early-physical-activity-time-with-pain-activities-of-daily-living-and-progression-of-vertebral-body-collapse-in-patients-with-vertebral-compression-fractures-an-observational-study-at-single-institution
#17
Hideki Kataoka, Tatsunori Ikemoto, Ayana Yoshimura, Mihoko Shibuya, Kyo Goto, Jyunichirou Yamashita, Kaoru Morita, Jyunya Sakamoto, Jiro Nakano, Minoru Okita
BACKGROUND: Physical activity can reduce pain and improve the ability to perform daily activities in patients with acute low back pain (LBP) due to various non-specific causes. The association between physical activity during the early phase of acute vertebral compression fractures (VCFs) and rehabilitation outcomes is unknown. AIM: To investigate the effects of early physical activity time (EPAT) on pain following acute VCFs, recovery of the ability to perform activities of daily living (ADLs), and progression of fractured vertebral body collapse...
December 19, 2016: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27991596/predisposing-factors-for-poor-outcome-of-surgery-for-cervical-spondylotic-amyotrophy-a-multivariate-analysis
#18
JingTao Zhang, Can Cui, Zhao Liu, Tong Tong, RuiJie Niu, Yong Shen
The purpose of this study was to characterize risk factors for poor surgical outcome in patients with cervical spondylotic amyotrophy (CSA). We retrospectively reviewed 88 cases of CSA surgery and investigated age, sex, duration of symptoms, atrophy type, preoperative muscle power, signal changes on MRI, anterior horn (AH) or ventral nerve root (VNR) compression, compression levels, surgical approach and postoperative recovery. Fifty (56.8%) patients had good surgical outcome. Logistic regression, with poor outcome as dependent variable, showed independent risks associated with duration of symptoms (OR; 1 for symptom duration less than 3 months versus 3...
December 19, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27983904/transient-bilateral-vocal-fold-paralysis-after-total-thyroidectomy
#19
Alexander Edward Dy, Jose Florencio F Lapeña
Vocal fold paralysis is a serious complication of thyroidectomy that is worrisome for health providers and potentially disastrous for the patient and family. A 56-year-old woman presented with bilateral vocal fold paralysis immediately after routine thyroidectomy and neck dissection for a large goiter with compressive symptoms. She was extubated the next day with full recovery of vocal fold motion. We discuss possible causes of vocal fold paralysis, including surgical, metabolic and anesthetic factors.
November 2016: Kulak Burun Boğaz Ihtisas Dergisi: KBB, Journal of Ear, Nose, and Throat
https://www.readbyqxmd.com/read/27959509/multifunctional-superelastic-foam-like-boron-nitride-nanotubular-cellular-network-architectures
#20
Yanming Xue, Pengcheng Dai, Min Zhou, Xi Wang, Amir Pakdel, Chao Zhang, Qunhong Weng, Toshiaki Takei, Xiuwei Fu, Zakhar I Popov, Pavel B Sorokin, Chengchun Tang, Kiyoshi Shimamura, Yoshio Bando, Dmitri Golberg
Construction of cellular architectures has been expected to enhance materials' mechanical tolerance and to stimulate and broaden their efficient utilizations in many potential fields. However, hitherto, there have been rather scarce developments in boron nitride (BN)-type cellular architectures because of well-known difficulties in the syntheses of BN-based structures. Herein, cellular-network multifunctional foams made of interconnective nanotubular hexagonal BN (h-BN) architectures are developed using carbothermal reduction-assisted in situ chemical vapor deposition conversion from N-doped tubular graphitic cellular foams...
December 16, 2016: ACS Nano
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