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https://www.readbyqxmd.com/read/28320175/mechanical-embolectomy-for-acute-ischemic-stroke-beyond-six-hours-from-symptom-onset-using-mri-based-perfusion-imaging
#1
Ryan A McTaggart, Shadi Yaghi, Daniel C Sacchetti, Richard A Haas, Morgan Hemendinger, Daniel Arcuri, Jeffrey M Rogg, Karen L Furie, Mahesh V Jayaraman
INTRODUCTION: There is very limited data on the use of MRI based perfusion imaging to select patients with acute ischemic stroke and large vessel occlusion (LVO) for intraarterial therapy beyond 6h from onset. Our aim is to report the outcome of patients with acute ischemic stroke and large artery occlusion who presented beyond 6h from onset, had favorable MRI imaging profile, and underwent mechanical embolectomy. METHODS: This is a single institution (Rhode Island Hospital) retrospective study between December 1st, 2015, and July 30th, 2016 that included patients with acute ischemic stroke and proximal LVO with CT ASPECTS of 6 or more and 6-24h from symptom onset who were assessed for mechanical embolectomy using MRI based perfusion imaging...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320029/morphometric-changes-of-the-lumbar-intervertebral-foramen-after-percutaneous-endoscopic-foraminoplasty-under-local-anesthesia
#2
Tatsuhiko Henmi, Tomoya Terai, Akihiro Nagamachi, Koichi Sairyo
Background Percutaneous endoscopic diskectomy (PED) for the lumbar spine is a relatively new technique that is becoming more common due to its relatively less invasive nature. However, one possible serious complication is an exiting nerve injury when the cannula of the endoscope is inserted into the neural canal through the intervertebral foramen. A technique to enlarge the intervertebral foramen, called foraminoplasty, was recently established to insert the cannula safely into an appropriate position in the neural canal...
March 20, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28320028/extent-of-decompression-of-lumbar-spinal-canal-after-endoscopic-surgery
#3
Naresh Kumar Dewanngan, Yad Ram Yadav, Vijay Singh Parihar, Shailendra Ratre, Yatin Kher, Pushpraj Bhatele
Introduction Endoscopic techniques are being used in lumbar disk disease and lumbar canal stenosis to decompress the spinal canal. The present study analyzed pre- and postoperative magnetic resonance imaging (MRI) measurements of the lumbar canal. Material and Methods This was a prospective study of 30 lumbar levels. Patients < 18 years of age with unilateral compression, previous surgery at the same level, and spinal instability were excluded. Endoscopic posterior decompression was used. Pre- and postoperative MRIs of all the patients were performed...
March 20, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28320027/distance-between-active-electrode-contacts-and-dentatorubrothalamic-tract-in-patients-with-habituation-of-stimulation-effect-of-deep-brain-stimulation-in-essential-tremor
#4
Judith Maria Anthofer, Kathrin Steib, Max Lange, Eva Rothenfusser, Claudia Fellner, Alexander Brawanski, Juergen Schlaier
Background Some patients under thalamic deep brain stimulation (DBS) for essential tremor (ET) experience habituation of tremor reduction. The nucleus ventralis intermedius (Vim) is the current main target side for ET in DBS. However, the dentatorubrothalamic tract (DRTT) is considered the relevant structure to stimulate. We investigated the distance between the active contact of the DBS electrode and the DRTT and compared this distance in patients with habituation of tremor reduction and good responders...
March 20, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28319946/rebleeding-and-outcome-in-patients-with-symptomatic-brain-stem-cavernomas
#5
Antonio Arauz, Hernán M Patiño-Rodriguez, Mónica Chavarria-Medina, Mayra Becerril, Gabriel Mauricio Longo, Edgar Nathal
PURPOSE: We sought to evaluate the long-term functional outcomes and identify the potential risk factors for rebleeding in patients with brain stem cavernous malformations (BCMs) who presented with hemorrhages and were surgically or conservatively treated and prospectively monitored. METHODS: From January 1990 to July 2015, we included patients with first hemorrhagic episodes secondary to single BCMs. Modified Rankin score (mRS) was used for neurological status assessment...
March 21, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28319781/systematic-study-of-imidazoles-inhibiting-ido1-via-the-integration-of-molecular-mechanics-and-quantum-mechanics-calculations
#6
Yi Zou, Fang Wang, Yan Wang, Wenjie Guo, Yihua Zhang, Qiang Xu, Yisheng Lai
Indoleamine 2,3-dioxygenase 1 (IDO1) is regarded as an attractive target for cancer immunotherapy. To rationalize the detailed interactions between IDO1 and its inhibitors at the atomic level, an integrated computational approach by combining molecular mechanics and quantum mechanics methods was employed in this report. Specifically, the binding modes of 20 inhibitors was initially investigated using the induced fit docking (IFD) protocol, which outperformed other two docking protocols in terms of correctly predicting ligand conformations...
March 14, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28319689/using-a-hybrid-subtyping-model-to-capture-patterns-and-dimensionality-of-depressive-and-anxiety-symptomatology-in-the-general-population
#7
Klaas J Wardenaar, Rob B K Wanders, Margreet Ten Have, Ron de Graaf, Peter de Jonge
BACKGROUND: Researchers have tried to identify more homogeneous subtypes of major depressive disorder (MDD) with latent class analyses (LCA). However, this approach does no justice to the dimensional nature of psychopathology. In addition, anxiety and functioning-levels have seldom been integrated in subtyping efforts. Therefore, this study used a hybrid discrete-dimensional approach to identify subgroups with shared patterns of depressive and anxiety symptomatology, while accounting for functioning-levels...
March 14, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28319652/effect-of-freezing-rate-and-microwave-thawing-on-texture-and-microstructural-properties-of-potato-solanum-tuberosum
#8
David M Phinney, John C Frelka, Anita Wickramasinghe, Dennis R Heldman
Food freezing is a preservation process that works by lowering temperature while simultaneously decreasing water activity. It is accepted that although freezing preserves foods, it generally has a negative effect on textural quality. This research investigated the texture response of potatoes (Solanum tuberosum) as a function of time to freeze (defined as the time for the center temperature to reach -20 °C) and thawing process. Potatoes slices (6 mm) were blanched then frozen in an ethanol/carbon dioxide bath, a pilot scale high velocity air freezer (HVAF) and a still air freezer to achieve various times to freeze...
March 20, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28319576/microscopic-heterotopic-extraovarian-sex-cord-stromal-proliferations-expanding-the-histologic-spectrum
#9
Aisling Longworth, Raji Ganesan, Adrian K H Yoong, Lynn Hirschowitz
Microscopic, heterotopic extraovarian sex cord-stromal proliferations have only recently been reported in the literature. We describe the largest series to date, of 30 cases of microscopic, incidentally detected, heterotopic extraovarian sex cord-stromal proliferation, in women aged 25-79 yr who had undergone surgery for a range of benign and malignant gynecologic conditions. In 14 patients the foci of proliferation comprised ovarian cortical stroma, in some cases with an ovarian fibroma-like appearance. Ten cases of adenofibroma and cystadenofibroma were also identified, including 1 Brenner adenofibroma; 2 cases comprised both ovarian cortical stroma and serous cystadenofibroma; 4 cases showed sex cord proliferation resembling microscopic adult granulosa cell tumors...
March 17, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28319567/treatment-of-biliary-stricture-after-live-donor-liver-transplantation-with-combined-metal-and-plastic-stent-%C3%A4-nsertion-a-feasibility-and-safety-study
#10
Erkan Parlak, Aydin Seref Koksal, Ahmet Tarik Eminler, Bilal Toka, Mustafa Ihsan Uslan
BACKGROUND: Fully covered-self expandable metal stents (Fc-SEMSs) have a challenging use in the treatment of anastomosis strictures (ASs) after live donor liver transplantation (LDLT) because they can occlude secondary branch biliary ducts when placed above the biliary bifurcation. In this study we evaluated the technical feasibility and safety of combining Fc-SEMSs with plastic stent(s) inserted to the secondary branch biliary ducts for the treatment of ASs after LDLT. METHODS: The study group included 22 patients (12 men, aged 51±11 years) with anastomotic biliary stricture after LDLT...
March 18, 2017: Transplantation
https://www.readbyqxmd.com/read/28319488/an-in-vitro-assessment-of-the-efficacy-of-various-iv-cannulas-for-the-rapid-iv-fluid-administration
#11
Mineto Kamata, Hina Walia, Mumin Hakim, Dmitry Tumin, Joseph D Tobias
OBJECTIVES: The current study prospectively evaluates the administration of fluid through commonly used vascular cannulas of various length and diameter. DESIGN: Observational, in vitro experiment. SETTING: Not applicable. SUBJECTS: No human subjects. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Fluid (500 mL) was administered via gravity flow and with pressure assistance (pressure bag set at 300 mm Hg) through various vascular cannulas including peripheral IV catheters (22 gauge, 1 inch; 20 gauge, 1...
March 17, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28319468/the-impact-of-cage-dimensions-positioning-and-side-of-approach-in-extreme-lateral-interbody-fusion
#12
Marjan Alimi, Gernot Lang, Rodrigo Navarro-Ramirez, Moritz Perrech, Connor Berlin, Christoph P Hofstetter, Yu Moriguchi, Eric Elowitz, Roger Härtl
STUDY DESIGN: This is a retrospective single-center study. OBJECTIVE: The aim of the study was to evaluate the impact of cage characteristics and position toward clinical and radiographic outcome measures in patients undergoing extreme lateral interbody fusion (ELIF). SUMMARY OF BACKGROUND DATA: ELIF is utilized for indirect decompression and minimally invasive surgical treatment for various degenerative spinal disorders. However, evidence regarding the influence of cage characteristics in patient outcome is minimal...
March 17, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28319467/effects-of-iv-acetaminophen-on-core-body-temperature-and-hemodynamic-responses-in-febrile-critically-ill-adults-a-randomized-controlled-trial
#13
Hildy M Schell-Chaple, Kathleen D Liu, Michael A Matthay, Daniel I Sessler, Kathleen A Puntillo
OBJECTIVE: To determine the effects of IV acetaminophen on core body temperature, blood pressure, and heart rate in febrile critically ill patients. DESIGN: Randomized, double-blind, placebo-controlled clinical trial. SETTING: Three adult ICUs at a large, urban, academic medical center. PATIENTS: Forty critically ill adults with fever (core temperature, ≥ 38.3°C). INTERVENTION: An infusion of acetaminophen 1 g or saline placebo over 15 minutes...
March 17, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28319458/quality-of-life-in-807-patients-with-vestibular-schwannoma-comparing-treatment-modalities
#14
Géke Soulier, Bibian M van Leeuwen, Hein Putter, Jeroen C Jansen, Martijn J A Malessy, Peter Paul G van Benthem, Andel G L van der Mey, Anne M Stiggelbout
Objective In vestibular schwannoma treatment, the choice among treatment modalities is controversial. The first aim of this study was to examine the quality of life of patients with vestibular schwannoma having undergone observation, radiation therapy, or microsurgical resection. The second aim was to examine the relationship between perceived symptoms and quality of life. Last, the association between quality of life and time since treatment was studied. Study Design Cross-sectional study. Setting Tertiary referral center...
March 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28319442/evaluation-of-patients-with-facial-palsy-and-ophthalmic-sequelae-a-23-year-retrospective-review
#15
Shannon S Joseph, Andrew W Joseph, Jane I Smith, Leslie M Niziol, David C Musch, Christine C Nelson
PURPOSE: Facial palsy (FP) can result in serious ophthalmic sequelae including loss of vision. We describe the clinical characteristics of FP patients presenting for ophthalmologic evaluation and the timing for initiating ophthalmologic care. METHODS: We performed a retrospective review of 96 consecutive FP patients presenting between 1992 and 2015 at a tertiary eye center. The main outcome measures were time interval from the diagnosis of FP and onset of ocular symptoms to the initial ophthalmologic evaluation (IOE), and the severity of exposure keratopathy and eyelid malposition on IOE...
March 20, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28319418/autologous-cartilage-chip-transplantation-improves-repair-tissue-composition-compared-with-marrow-stimulation
#16
Bjørn Borsøe Christensen, Morten Lykke Olesen, Martin Lind, Casper Bindzus Foldager
BACKGROUND: Repair of chondral injuries by use of cartilage chips has recently demonstrated clinical feasibility. PURPOSE: To investigate in vivo cartilage repair outcome of autologous cartilage chips compared with marrow stimulation in full-thickness cartilage defects in a minipig model. STUDY DESIGN: Controlled laboratory study. METHODS: Six Göttingen minipigs received two 6-mm chondral defects in the medial and lateral trochlea of each knee...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28319364/a-new-spin-on-antibody-drug-conjugates-trastuzumab-fulvestrant-colloidal-drug-aggregates-target-her2-positive-cells
#17
Ahil N Ganesh, Christopher Mclaughlin, Da Duan, Brian K Shoichet, Molly S Shoichet
While the formation of colloidal aggregates leads to artifacts in early drug discovery, their composition makes them attrac-tive as nanoparticle formulations for targeted drug delivery as the entire nanoparticle is composed of drug. The typical tran-sient stability of colloidal aggregates has inhibited exploiting this property. To overcome this limitation, we investigated a series of proteins to stabilize colloidal aggregates of the chemotherapeutic, fulvestrant, including: bovine serum albumin, a generic human immunoglobulin G, and trastuzumab, a therapeutic anti-human epidermal growth factor receptor 2 anti-body...
March 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28319329/extracellular-acidosis-and-very-low-na-inhibit-nbcn1-and-nhe1-mediated-net-acid-extrusion-from-mouse-vascular-smooth-muscle-cells
#18
Lisbeth Bonde, Ebbe Boedtkjer
AIM: The electroneutral Na(+) ,HCO3(-) -cotransporter NBCn1 and Na(+) /H(+) -exchanger NHE1 regulate acid-base balance in vascular smooth muscle cells (VSMCs) and modify artery function and structure. Pathological conditions-notably ischemia-can dramatically perturb intracellular (i) and extracellular (o) pH and [Na(+) ]. We examined effects of low [Na(+) ]o and pHo on NBCn1 and NHE1 activity in VSMCs of small arteries. METHODS: We measured pHi by 2',7'-bis-(2-carboxyethyl)-5-(and-6)-carboxyfluorescein-based fluorescence microscopy of mouse mesenteric arteries and induced intracellular acidification by NH4(+) -prepulse technique...
March 20, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28319324/future-of-robotic-surgery-in-urology
#19
Jens J Rassweiler, Riccardo Autorino, Jan Klein, Alex Mottrie, Ali Serdar Goezen, Jens-Uwe Stolzenburg, Koon H Rha, Marc Schurr, Jihad Kaouk, Vipul Patel, Prokar Dasgupta, Evangelos Liatsikos
OBJECTIVES: To provide a comprehensive overview of the current status and future perspectives in the field of robotic systems for urologic surgery. MATERIALS AND METHODS: A non-systematic literature review was performed by using PubMed / Medline search electronic engines. Existing patents for robotic devices were researched using the Google search machine. Findings were critically analyzed also by taking into account personal experience of the authors. RESULTS: Relevant patents of the first generation of the da Vinci platform will expire in 2019...
March 20, 2017: BJU International
https://www.readbyqxmd.com/read/28319282/stereotactic-radiosurgery-for-essential-tremor-retrospective-analysis-of-a-19-year-experience
#20
Ajay Niranjan, Sudesh S Raju, Ali Kooshkabadi, Edward Monaco, John C Flickinger, L Dade Lunsford
BACKGROUND: Essential Tremor (ET) is a common movement disorder that can be disabling. Initial treatment is in the form of medical therapies. Patients with medically refractory ET seek surgical intervention which include radiofrequency thalamotomy, deep brain stimulation, and radiosurgical thalamotomy. Radiosurgical thalamotomy is a minimally invasive surgical option which is especially valuable for elderly and high surgical risk patients. OBJECTIVE: The purpose of this study was to retrospectively analyze the outcomes of stereotactic radiosurgery for patients suffering from medically refractory essential tremor...
March 20, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
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